Removed folders from vendor, Added vendor.json

This commit is contained in:
Ishan Jain 2017-10-05 12:06:07 +05:30
parent cc12ddc46d
commit 183b6ec6e2
242 changed files with 70 additions and 134931 deletions

4
.gitignore vendored
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@ -21,4 +21,6 @@ feed\.rss
assets/static/custom\.css
config\.json
config\.json
/vendor/github.com
/vendor/golang.org

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root = true
[*]
indent_style = tab
indent_size = 4

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# Setup a Global .gitignore for OS and editor generated files:
# https://help.github.com/articles/ignoring-files
# git config --global core.excludesfile ~/.gitignore_global
.vagrant
*.sublime-project

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sudo: false
language: go
go:
- 1.8
- 1.7.x
- tip
matrix:
allow_failures:
- go: tip
fast_finish: true
before_script:
- go get -u github.com/golang/lint/golint
script:
- go test -v --race ./...
after_script:
- test -z "$(gofmt -s -l -w . | tee /dev/stderr)"
- test -z "$(golint ./... | tee /dev/stderr)"
- go vet ./...
os:
- linux
- osx
notifications:
email: false

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# Names should be added to this file as
# Name or Organization <email address>
# The email address is not required for organizations.
# You can update this list using the following command:
#
# $ git shortlog -se | awk '{print $2 " " $3 " " $4}'
# Please keep the list sorted.
Adrien Bustany <adrien@bustany.org>
Amit Krishnan <amit.krishnan@oracle.com>
Bjørn Erik Pedersen <bjorn.erik.pedersen@gmail.com>
Bruno Bigras <bigras.bruno@gmail.com>
Caleb Spare <cespare@gmail.com>
Case Nelson <case@teammating.com>
Chris Howey <chris@howey.me> <howeyc@gmail.com>
Christoffer Buchholz <christoffer.buchholz@gmail.com>
Daniel Wagner-Hall <dawagner@gmail.com>
Dave Cheney <dave@cheney.net>
Evan Phoenix <evan@fallingsnow.net>
Francisco Souza <f@souza.cc>
Hari haran <hariharan.uno@gmail.com>
John C Barstow
Kelvin Fo <vmirage@gmail.com>
Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp>
Matt Layher <mdlayher@gmail.com>
Nathan Youngman <git@nathany.com>
Patrick <patrick@dropbox.com>
Paul Hammond <paul@paulhammond.org>
Pawel Knap <pawelknap88@gmail.com>
Pieter Droogendijk <pieter@binky.org.uk>
Pursuit92 <JoshChase@techpursuit.net>
Riku Voipio <riku.voipio@linaro.org>
Rob Figueiredo <robfig@gmail.com>
Slawek Ligus <root@ooz.ie>
Soge Zhang <zhssoge@gmail.com>
Tiffany Jernigan <tiffany.jernigan@intel.com>
Tilak Sharma <tilaks@google.com>
Travis Cline <travis.cline@gmail.com>
Tudor Golubenco <tudor.g@gmail.com>
Yukang <moorekang@gmail.com>
bronze1man <bronze1man@gmail.com>
debrando <denis.brandolini@gmail.com>
henrikedwards <henrik.edwards@gmail.com>
铁哥 <guotie.9@gmail.com>

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# Changelog
## v1.4.2 / 2016-10-10
* Linux: use InotifyInit1 with IN_CLOEXEC to stop leaking a file descriptor to a child process when using fork/exec [#178](https://github.com/fsnotify/fsnotify/pull/178) (thanks @pattyshack)
## v1.4.1 / 2016-10-04
* Fix flaky inotify stress test on Linux [#177](https://github.com/fsnotify/fsnotify/pull/177) (thanks @pattyshack)
## v1.4.0 / 2016-10-01
* add a String() method to Event.Op [#165](https://github.com/fsnotify/fsnotify/pull/165) (thanks @oozie)
## v1.3.1 / 2016-06-28
* Windows: fix for double backslash when watching the root of a drive [#151](https://github.com/fsnotify/fsnotify/issues/151) (thanks @brunoqc)
## v1.3.0 / 2016-04-19
* Support linux/arm64 by [patching](https://go-review.googlesource.com/#/c/21971/) x/sys/unix and switching to to it from syscall (thanks @suihkulokki) [#135](https://github.com/fsnotify/fsnotify/pull/135)
## v1.2.10 / 2016-03-02
* Fix golint errors in windows.go [#121](https://github.com/fsnotify/fsnotify/pull/121) (thanks @tiffanyfj)
## v1.2.9 / 2016-01-13
kqueue: Fix logic for CREATE after REMOVE [#111](https://github.com/fsnotify/fsnotify/pull/111) (thanks @bep)
## v1.2.8 / 2015-12-17
* kqueue: fix race condition in Close [#105](https://github.com/fsnotify/fsnotify/pull/105) (thanks @djui for reporting the issue and @ppknap for writing a failing test)
* inotify: fix race in test
* enable race detection for continuous integration (Linux, Mac, Windows)
## v1.2.5 / 2015-10-17
* inotify: use epoll_create1 for arm64 support (requires Linux 2.6.27 or later) [#100](https://github.com/fsnotify/fsnotify/pull/100) (thanks @suihkulokki)
* inotify: fix path leaks [#73](https://github.com/fsnotify/fsnotify/pull/73) (thanks @chamaken)
* kqueue: watch for rename events on subdirectories [#83](https://github.com/fsnotify/fsnotify/pull/83) (thanks @guotie)
* kqueue: avoid infinite loops from symlinks cycles [#101](https://github.com/fsnotify/fsnotify/pull/101) (thanks @illicitonion)
## v1.2.1 / 2015-10-14
* kqueue: don't watch named pipes [#98](https://github.com/fsnotify/fsnotify/pull/98) (thanks @evanphx)
## v1.2.0 / 2015-02-08
* inotify: use epoll to wake up readEvents [#66](https://github.com/fsnotify/fsnotify/pull/66) (thanks @PieterD)
* inotify: closing watcher should now always shut down goroutine [#63](https://github.com/fsnotify/fsnotify/pull/63) (thanks @PieterD)
* kqueue: close kqueue after removing watches, fixes [#59](https://github.com/fsnotify/fsnotify/issues/59)
## v1.1.1 / 2015-02-05
* inotify: Retry read on EINTR [#61](https://github.com/fsnotify/fsnotify/issues/61) (thanks @PieterD)
## v1.1.0 / 2014-12-12
* kqueue: rework internals [#43](https://github.com/fsnotify/fsnotify/pull/43)
* add low-level functions
* only need to store flags on directories
* less mutexes [#13](https://github.com/fsnotify/fsnotify/issues/13)
* done can be an unbuffered channel
* remove calls to os.NewSyscallError
* More efficient string concatenation for Event.String() [#52](https://github.com/fsnotify/fsnotify/pull/52) (thanks @mdlayher)
* kqueue: fix regression in rework causing subdirectories to be watched [#48](https://github.com/fsnotify/fsnotify/issues/48)
* kqueue: cleanup internal watch before sending remove event [#51](https://github.com/fsnotify/fsnotify/issues/51)
## v1.0.4 / 2014-09-07
* kqueue: add dragonfly to the build tags.
* Rename source code files, rearrange code so exported APIs are at the top.
* Add done channel to example code. [#37](https://github.com/fsnotify/fsnotify/pull/37) (thanks @chenyukang)
## v1.0.3 / 2014-08-19
* [Fix] Windows MOVED_TO now translates to Create like on BSD and Linux. [#36](https://github.com/fsnotify/fsnotify/issues/36)
## v1.0.2 / 2014-08-17
* [Fix] Missing create events on macOS. [#14](https://github.com/fsnotify/fsnotify/issues/14) (thanks @zhsso)
* [Fix] Make ./path and path equivalent. (thanks @zhsso)
## v1.0.0 / 2014-08-15
* [API] Remove AddWatch on Windows, use Add.
* Improve documentation for exported identifiers. [#30](https://github.com/fsnotify/fsnotify/issues/30)
* Minor updates based on feedback from golint.
## dev / 2014-07-09
* Moved to [github.com/fsnotify/fsnotify](https://github.com/fsnotify/fsnotify).
* Use os.NewSyscallError instead of returning errno (thanks @hariharan-uno)
## dev / 2014-07-04
* kqueue: fix incorrect mutex used in Close()
* Update example to demonstrate usage of Op.
## dev / 2014-06-28
* [API] Don't set the Write Op for attribute notifications [#4](https://github.com/fsnotify/fsnotify/issues/4)
* Fix for String() method on Event (thanks Alex Brainman)
* Don't build on Plan 9 or Solaris (thanks @4ad)
## dev / 2014-06-21
* Events channel of type Event rather than *Event.
* [internal] use syscall constants directly for inotify and kqueue.
* [internal] kqueue: rename events to kevents and fileEvent to event.
## dev / 2014-06-19
* Go 1.3+ required on Windows (uses syscall.ERROR_MORE_DATA internally).
* [internal] remove cookie from Event struct (unused).
* [internal] Event struct has the same definition across every OS.
* [internal] remove internal watch and removeWatch methods.
## dev / 2014-06-12
* [API] Renamed Watch() to Add() and RemoveWatch() to Remove().
* [API] Pluralized channel names: Events and Errors.
* [API] Renamed FileEvent struct to Event.
* [API] Op constants replace methods like IsCreate().
## dev / 2014-06-12
* Fix data race on kevent buffer (thanks @tilaks) [#98](https://github.com/howeyc/fsnotify/pull/98)
## dev / 2014-05-23
* [API] Remove current implementation of WatchFlags.
* current implementation doesn't take advantage of OS for efficiency
* provides little benefit over filtering events as they are received, but has extra bookkeeping and mutexes
* no tests for the current implementation
* not fully implemented on Windows [#93](https://github.com/howeyc/fsnotify/issues/93#issuecomment-39285195)
## v0.9.3 / 2014-12-31
* kqueue: cleanup internal watch before sending remove event [#51](https://github.com/fsnotify/fsnotify/issues/51)
## v0.9.2 / 2014-08-17
* [Backport] Fix missing create events on macOS. [#14](https://github.com/fsnotify/fsnotify/issues/14) (thanks @zhsso)
## v0.9.1 / 2014-06-12
* Fix data race on kevent buffer (thanks @tilaks) [#98](https://github.com/howeyc/fsnotify/pull/98)
## v0.9.0 / 2014-01-17
* IsAttrib() for events that only concern a file's metadata [#79][] (thanks @abustany)
* [Fix] kqueue: fix deadlock [#77][] (thanks @cespare)
* [NOTICE] Development has moved to `code.google.com/p/go.exp/fsnotify` in preparation for inclusion in the Go standard library.
## v0.8.12 / 2013-11-13
* [API] Remove FD_SET and friends from Linux adapter
## v0.8.11 / 2013-11-02
* [Doc] Add Changelog [#72][] (thanks @nathany)
* [Doc] Spotlight and double modify events on macOS [#62][] (reported by @paulhammond)
## v0.8.10 / 2013-10-19
* [Fix] kqueue: remove file watches when parent directory is removed [#71][] (reported by @mdwhatcott)
* [Fix] kqueue: race between Close and readEvents [#70][] (reported by @bernerdschaefer)
* [Doc] specify OS-specific limits in README (thanks @debrando)
## v0.8.9 / 2013-09-08
* [Doc] Contributing (thanks @nathany)
* [Doc] update package path in example code [#63][] (thanks @paulhammond)
* [Doc] GoCI badge in README (Linux only) [#60][]
* [Doc] Cross-platform testing with Vagrant [#59][] (thanks @nathany)
## v0.8.8 / 2013-06-17
* [Fix] Windows: handle `ERROR_MORE_DATA` on Windows [#49][] (thanks @jbowtie)
## v0.8.7 / 2013-06-03
* [API] Make syscall flags internal
* [Fix] inotify: ignore event changes
* [Fix] race in symlink test [#45][] (reported by @srid)
* [Fix] tests on Windows
* lower case error messages
## v0.8.6 / 2013-05-23
* kqueue: Use EVT_ONLY flag on Darwin
* [Doc] Update README with full example
## v0.8.5 / 2013-05-09
* [Fix] inotify: allow monitoring of "broken" symlinks (thanks @tsg)
## v0.8.4 / 2013-04-07
* [Fix] kqueue: watch all file events [#40][] (thanks @ChrisBuchholz)
## v0.8.3 / 2013-03-13
* [Fix] inoitfy/kqueue memory leak [#36][] (reported by @nbkolchin)
* [Fix] kqueue: use fsnFlags for watching a directory [#33][] (reported by @nbkolchin)
## v0.8.2 / 2013-02-07
* [Doc] add Authors
* [Fix] fix data races for map access [#29][] (thanks @fsouza)
## v0.8.1 / 2013-01-09
* [Fix] Windows path separators
* [Doc] BSD License
## v0.8.0 / 2012-11-09
* kqueue: directory watching improvements (thanks @vmirage)
* inotify: add `IN_MOVED_TO` [#25][] (requested by @cpisto)
* [Fix] kqueue: deleting watched directory [#24][] (reported by @jakerr)
## v0.7.4 / 2012-10-09
* [Fix] inotify: fixes from https://codereview.appspot.com/5418045/ (ugorji)
* [Fix] kqueue: preserve watch flags when watching for delete [#21][] (reported by @robfig)
* [Fix] kqueue: watch the directory even if it isn't a new watch (thanks @robfig)
* [Fix] kqueue: modify after recreation of file
## v0.7.3 / 2012-09-27
* [Fix] kqueue: watch with an existing folder inside the watched folder (thanks @vmirage)
* [Fix] kqueue: no longer get duplicate CREATE events
## v0.7.2 / 2012-09-01
* kqueue: events for created directories
## v0.7.1 / 2012-07-14
* [Fix] for renaming files
## v0.7.0 / 2012-07-02
* [Feature] FSNotify flags
* [Fix] inotify: Added file name back to event path
## v0.6.0 / 2012-06-06
* kqueue: watch files after directory created (thanks @tmc)
## v0.5.1 / 2012-05-22
* [Fix] inotify: remove all watches before Close()
## v0.5.0 / 2012-05-03
* [API] kqueue: return errors during watch instead of sending over channel
* kqueue: match symlink behavior on Linux
* inotify: add `DELETE_SELF` (requested by @taralx)
* [Fix] kqueue: handle EINTR (reported by @robfig)
* [Doc] Godoc example [#1][] (thanks @davecheney)
## v0.4.0 / 2012-03-30
* Go 1 released: build with go tool
* [Feature] Windows support using winfsnotify
* Windows does not have attribute change notifications
* Roll attribute notifications into IsModify
## v0.3.0 / 2012-02-19
* kqueue: add files when watch directory
## v0.2.0 / 2011-12-30
* update to latest Go weekly code
## v0.1.0 / 2011-10-19
* kqueue: add watch on file creation to match inotify
* kqueue: create file event
* inotify: ignore `IN_IGNORED` events
* event String()
* linux: common FileEvent functions
* initial commit
[#79]: https://github.com/howeyc/fsnotify/pull/79
[#77]: https://github.com/howeyc/fsnotify/pull/77
[#72]: https://github.com/howeyc/fsnotify/issues/72
[#71]: https://github.com/howeyc/fsnotify/issues/71
[#70]: https://github.com/howeyc/fsnotify/issues/70
[#63]: https://github.com/howeyc/fsnotify/issues/63
[#62]: https://github.com/howeyc/fsnotify/issues/62
[#60]: https://github.com/howeyc/fsnotify/issues/60
[#59]: https://github.com/howeyc/fsnotify/issues/59
[#49]: https://github.com/howeyc/fsnotify/issues/49
[#45]: https://github.com/howeyc/fsnotify/issues/45
[#40]: https://github.com/howeyc/fsnotify/issues/40
[#36]: https://github.com/howeyc/fsnotify/issues/36
[#33]: https://github.com/howeyc/fsnotify/issues/33
[#29]: https://github.com/howeyc/fsnotify/issues/29
[#25]: https://github.com/howeyc/fsnotify/issues/25
[#24]: https://github.com/howeyc/fsnotify/issues/24
[#21]: https://github.com/howeyc/fsnotify/issues/21

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# Contributing
## Issues
* Request features and report bugs using the [GitHub Issue Tracker](https://github.com/fsnotify/fsnotify/issues).
* Please indicate the platform you are using fsnotify on.
* A code example to reproduce the problem is appreciated.
## Pull Requests
### Contributor License Agreement
fsnotify is derived from code in the [golang.org/x/exp](https://godoc.org/golang.org/x/exp) package and it may be included [in the standard library](https://github.com/fsnotify/fsnotify/issues/1) in the future. Therefore fsnotify carries the same [LICENSE](https://github.com/fsnotify/fsnotify/blob/master/LICENSE) as Go. Contributors retain their copyright, so you need to fill out a short form before we can accept your contribution: [Google Individual Contributor License Agreement](https://developers.google.com/open-source/cla/individual).
Please indicate that you have signed the CLA in your pull request.
### How fsnotify is Developed
* Development is done on feature branches.
* Tests are run on BSD, Linux, macOS and Windows.
* Pull requests are reviewed and [applied to master][am] using [hub][].
* Maintainers may modify or squash commits rather than asking contributors to.
* To issue a new release, the maintainers will:
* Update the CHANGELOG
* Tag a version, which will become available through gopkg.in.
### How to Fork
For smooth sailing, always use the original import path. Installing with `go get` makes this easy.
1. Install from GitHub (`go get -u github.com/fsnotify/fsnotify`)
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Ensure everything works and the tests pass (see below)
4. Commit your changes (`git commit -am 'Add some feature'`)
Contribute upstream:
1. Fork fsnotify on GitHub
2. Add your remote (`git remote add fork git@github.com:mycompany/repo.git`)
3. Push to the branch (`git push fork my-new-feature`)
4. Create a new Pull Request on GitHub
This workflow is [thoroughly explained by Katrina Owen](https://splice.com/blog/contributing-open-source-git-repositories-go/).
### Testing
fsnotify uses build tags to compile different code on Linux, BSD, macOS, and Windows.
Before doing a pull request, please do your best to test your changes on multiple platforms, and list which platforms you were able/unable to test on.
To aid in cross-platform testing there is a Vagrantfile for Linux and BSD.
* Install [Vagrant](http://www.vagrantup.com/) and [VirtualBox](https://www.virtualbox.org/)
* Setup [Vagrant Gopher](https://github.com/nathany/vagrant-gopher) in your `src` folder.
* Run `vagrant up` from the project folder. You can also setup just one box with `vagrant up linux` or `vagrant up bsd` (note: the BSD box doesn't support Windows hosts at this time, and NFS may prompt for your host OS password)
* Once setup, you can run the test suite on a given OS with a single command `vagrant ssh linux -c 'cd fsnotify/fsnotify; go test'`.
* When you're done, you will want to halt or destroy the Vagrant boxes.
Notice: fsnotify file system events won't trigger in shared folders. The tests get around this limitation by using the /tmp directory.
Right now there is no equivalent solution for Windows and macOS, but there are Windows VMs [freely available from Microsoft](http://www.modern.ie/en-us/virtualization-tools#downloads).
### Maintainers
Help maintaining fsnotify is welcome. To be a maintainer:
* Submit a pull request and sign the CLA as above.
* You must be able to run the test suite on Mac, Windows, Linux and BSD.
To keep master clean, the fsnotify project uses the "apply mail" workflow outlined in Nathaniel Talbott's post ["Merge pull request" Considered Harmful][am]. This requires installing [hub][].
All code changes should be internal pull requests.
Releases are tagged using [Semantic Versioning](http://semver.org/).
[hub]: https://github.com/github/hub
[am]: http://blog.spreedly.com/2014/06/24/merge-pull-request-considered-harmful/#.VGa5yZPF_Zs

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Copyright (c) 2012 The Go Authors. All rights reserved.
Copyright (c) 2012 fsnotify Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# File system notifications for Go
[![GoDoc](https://godoc.org/github.com/fsnotify/fsnotify?status.svg)](https://godoc.org/github.com/fsnotify/fsnotify) [![Go Report Card](https://goreportcard.com/badge/github.com/fsnotify/fsnotify)](https://goreportcard.com/report/github.com/fsnotify/fsnotify)
fsnotify utilizes [golang.org/x/sys](https://godoc.org/golang.org/x/sys) rather than `syscall` from the standard library. Ensure you have the latest version installed by running:
```console
go get -u golang.org/x/sys/...
```
Cross platform: Windows, Linux, BSD and macOS.
|Adapter |OS |Status |
|----------|----------|----------|
|inotify |Linux 2.6.27 or later, Android\*|Supported [![Build Status](https://travis-ci.org/fsnotify/fsnotify.svg?branch=master)](https://travis-ci.org/fsnotify/fsnotify)|
|kqueue |BSD, macOS, iOS\*|Supported [![Build Status](https://travis-ci.org/fsnotify/fsnotify.svg?branch=master)](https://travis-ci.org/fsnotify/fsnotify)|
|ReadDirectoryChangesW|Windows|Supported [![Build status](https://ci.appveyor.com/api/projects/status/ivwjubaih4r0udeh/branch/master?svg=true)](https://ci.appveyor.com/project/NathanYoungman/fsnotify/branch/master)|
|FSEvents |macOS |[Planned](https://github.com/fsnotify/fsnotify/issues/11)|
|FEN |Solaris 11 |[In Progress](https://github.com/fsnotify/fsnotify/issues/12)|
|fanotify |Linux 2.6.37+ | |
|USN Journals |Windows |[Maybe](https://github.com/fsnotify/fsnotify/issues/53)|
|Polling |*All* |[Maybe](https://github.com/fsnotify/fsnotify/issues/9)|
\* Android and iOS are untested.
Please see [the documentation](https://godoc.org/github.com/fsnotify/fsnotify) and consult the [FAQ](#faq) for usage information.
## API stability
fsnotify is a fork of [howeyc/fsnotify](https://godoc.org/github.com/howeyc/fsnotify) with a new API as of v1.0. The API is based on [this design document](http://goo.gl/MrYxyA).
All [releases](https://github.com/fsnotify/fsnotify/releases) are tagged based on [Semantic Versioning](http://semver.org/). Further API changes are [planned](https://github.com/fsnotify/fsnotify/milestones), and will be tagged with a new major revision number.
Go 1.6 supports dependencies located in the `vendor/` folder. Unless you are creating a library, it is recommended that you copy fsnotify into `vendor/github.com/fsnotify/fsnotify` within your project, and likewise for `golang.org/x/sys`.
## Contributing
Please refer to [CONTRIBUTING][] before opening an issue or pull request.
## Example
See [example_test.go](https://github.com/fsnotify/fsnotify/blob/master/example_test.go).
## FAQ
**When a file is moved to another directory is it still being watched?**
No (it shouldn't be, unless you are watching where it was moved to).
**When I watch a directory, are all subdirectories watched as well?**
No, you must add watches for any directory you want to watch (a recursive watcher is on the roadmap [#18][]).
**Do I have to watch the Error and Event channels in a separate goroutine?**
As of now, yes. Looking into making this single-thread friendly (see [howeyc #7][#7])
**Why am I receiving multiple events for the same file on OS X?**
Spotlight indexing on OS X can result in multiple events (see [howeyc #62][#62]). A temporary workaround is to add your folder(s) to the *Spotlight Privacy settings* until we have a native FSEvents implementation (see [#11][]).
**How many files can be watched at once?**
There are OS-specific limits as to how many watches can be created:
* Linux: /proc/sys/fs/inotify/max_user_watches contains the limit, reaching this limit results in a "no space left on device" error.
* BSD / OSX: sysctl variables "kern.maxfiles" and "kern.maxfilesperproc", reaching these limits results in a "too many open files" error.
[#62]: https://github.com/howeyc/fsnotify/issues/62
[#18]: https://github.com/fsnotify/fsnotify/issues/18
[#11]: https://github.com/fsnotify/fsnotify/issues/11
[#7]: https://github.com/howeyc/fsnotify/issues/7
[contributing]: https://github.com/fsnotify/fsnotify/blob/master/CONTRIBUTING.md
## Related Projects
* [notify](https://github.com/rjeczalik/notify)
* [fsevents](https://github.com/fsnotify/fsevents)

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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build solaris
package fsnotify
import (
"errors"
)
// Watcher watches a set of files, delivering events to a channel.
type Watcher struct {
Events chan Event
Errors chan error
}
// NewWatcher establishes a new watcher with the underlying OS and begins waiting for events.
func NewWatcher() (*Watcher, error) {
return nil, errors.New("FEN based watcher not yet supported for fsnotify\n")
}
// Close removes all watches and closes the events channel.
func (w *Watcher) Close() error {
return nil
}
// Add starts watching the named file or directory (non-recursively).
func (w *Watcher) Add(name string) error {
return nil
}
// Remove stops watching the the named file or directory (non-recursively).
func (w *Watcher) Remove(name string) error {
return nil
}

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@ -1,66 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !plan9
// Package fsnotify provides a platform-independent interface for file system notifications.
package fsnotify
import (
"bytes"
"errors"
"fmt"
)
// Event represents a single file system notification.
type Event struct {
Name string // Relative path to the file or directory.
Op Op // File operation that triggered the event.
}
// Op describes a set of file operations.
type Op uint32
// These are the generalized file operations that can trigger a notification.
const (
Create Op = 1 << iota
Write
Remove
Rename
Chmod
)
func (op Op) String() string {
// Use a buffer for efficient string concatenation
var buffer bytes.Buffer
if op&Create == Create {
buffer.WriteString("|CREATE")
}
if op&Remove == Remove {
buffer.WriteString("|REMOVE")
}
if op&Write == Write {
buffer.WriteString("|WRITE")
}
if op&Rename == Rename {
buffer.WriteString("|RENAME")
}
if op&Chmod == Chmod {
buffer.WriteString("|CHMOD")
}
if buffer.Len() == 0 {
return ""
}
return buffer.String()[1:] // Strip leading pipe
}
// String returns a string representation of the event in the form
// "file: REMOVE|WRITE|..."
func (e Event) String() string {
return fmt.Sprintf("%q: %s", e.Name, e.Op.String())
}
// Common errors that can be reported by a watcher
var ErrEventOverflow = errors.New("fsnotify queue overflow")

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@ -1,337 +0,0 @@
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux
package fsnotify
import (
"errors"
"fmt"
"io"
"os"
"path/filepath"
"strings"
"sync"
"unsafe"
"golang.org/x/sys/unix"
)
// Watcher watches a set of files, delivering events to a channel.
type Watcher struct {
Events chan Event
Errors chan error
mu sync.Mutex // Map access
fd int
poller *fdPoller
watches map[string]*watch // Map of inotify watches (key: path)
paths map[int]string // Map of watched paths (key: watch descriptor)
done chan struct{} // Channel for sending a "quit message" to the reader goroutine
doneResp chan struct{} // Channel to respond to Close
}
// NewWatcher establishes a new watcher with the underlying OS and begins waiting for events.
func NewWatcher() (*Watcher, error) {
// Create inotify fd
fd, errno := unix.InotifyInit1(unix.IN_CLOEXEC)
if fd == -1 {
return nil, errno
}
// Create epoll
poller, err := newFdPoller(fd)
if err != nil {
unix.Close(fd)
return nil, err
}
w := &Watcher{
fd: fd,
poller: poller,
watches: make(map[string]*watch),
paths: make(map[int]string),
Events: make(chan Event),
Errors: make(chan error),
done: make(chan struct{}),
doneResp: make(chan struct{}),
}
go w.readEvents()
return w, nil
}
func (w *Watcher) isClosed() bool {
select {
case <-w.done:
return true
default:
return false
}
}
// Close removes all watches and closes the events channel.
func (w *Watcher) Close() error {
if w.isClosed() {
return nil
}
// Send 'close' signal to goroutine, and set the Watcher to closed.
close(w.done)
// Wake up goroutine
w.poller.wake()
// Wait for goroutine to close
<-w.doneResp
return nil
}
// Add starts watching the named file or directory (non-recursively).
func (w *Watcher) Add(name string) error {
name = filepath.Clean(name)
if w.isClosed() {
return errors.New("inotify instance already closed")
}
const agnosticEvents = unix.IN_MOVED_TO | unix.IN_MOVED_FROM |
unix.IN_CREATE | unix.IN_ATTRIB | unix.IN_MODIFY |
unix.IN_MOVE_SELF | unix.IN_DELETE | unix.IN_DELETE_SELF
var flags uint32 = agnosticEvents
w.mu.Lock()
defer w.mu.Unlock()
watchEntry := w.watches[name]
if watchEntry != nil {
flags |= watchEntry.flags | unix.IN_MASK_ADD
}
wd, errno := unix.InotifyAddWatch(w.fd, name, flags)
if wd == -1 {
return errno
}
if watchEntry == nil {
w.watches[name] = &watch{wd: uint32(wd), flags: flags}
w.paths[wd] = name
} else {
watchEntry.wd = uint32(wd)
watchEntry.flags = flags
}
return nil
}
// Remove stops watching the named file or directory (non-recursively).
func (w *Watcher) Remove(name string) error {
name = filepath.Clean(name)
// Fetch the watch.
w.mu.Lock()
defer w.mu.Unlock()
watch, ok := w.watches[name]
// Remove it from inotify.
if !ok {
return fmt.Errorf("can't remove non-existent inotify watch for: %s", name)
}
// We successfully removed the watch if InotifyRmWatch doesn't return an
// error, we need to clean up our internal state to ensure it matches
// inotify's kernel state.
delete(w.paths, int(watch.wd))
delete(w.watches, name)
// inotify_rm_watch will return EINVAL if the file has been deleted;
// the inotify will already have been removed.
// watches and pathes are deleted in ignoreLinux() implicitly and asynchronously
// by calling inotify_rm_watch() below. e.g. readEvents() goroutine receives IN_IGNORE
// so that EINVAL means that the wd is being rm_watch()ed or its file removed
// by another thread and we have not received IN_IGNORE event.
success, errno := unix.InotifyRmWatch(w.fd, watch.wd)
if success == -1 {
// TODO: Perhaps it's not helpful to return an error here in every case.
// the only two possible errors are:
// EBADF, which happens when w.fd is not a valid file descriptor of any kind.
// EINVAL, which is when fd is not an inotify descriptor or wd is not a valid watch descriptor.
// Watch descriptors are invalidated when they are removed explicitly or implicitly;
// explicitly by inotify_rm_watch, implicitly when the file they are watching is deleted.
return errno
}
return nil
}
type watch struct {
wd uint32 // Watch descriptor (as returned by the inotify_add_watch() syscall)
flags uint32 // inotify flags of this watch (see inotify(7) for the list of valid flags)
}
// readEvents reads from the inotify file descriptor, converts the
// received events into Event objects and sends them via the Events channel
func (w *Watcher) readEvents() {
var (
buf [unix.SizeofInotifyEvent * 4096]byte // Buffer for a maximum of 4096 raw events
n int // Number of bytes read with read()
errno error // Syscall errno
ok bool // For poller.wait
)
defer close(w.doneResp)
defer close(w.Errors)
defer close(w.Events)
defer unix.Close(w.fd)
defer w.poller.close()
for {
// See if we have been closed.
if w.isClosed() {
return
}
ok, errno = w.poller.wait()
if errno != nil {
select {
case w.Errors <- errno:
case <-w.done:
return
}
continue
}
if !ok {
continue
}
n, errno = unix.Read(w.fd, buf[:])
// If a signal interrupted execution, see if we've been asked to close, and try again.
// http://man7.org/linux/man-pages/man7/signal.7.html :
// "Before Linux 3.8, reads from an inotify(7) file descriptor were not restartable"
if errno == unix.EINTR {
continue
}
// unix.Read might have been woken up by Close. If so, we're done.
if w.isClosed() {
return
}
if n < unix.SizeofInotifyEvent {
var err error
if n == 0 {
// If EOF is received. This should really never happen.
err = io.EOF
} else if n < 0 {
// If an error occurred while reading.
err = errno
} else {
// Read was too short.
err = errors.New("notify: short read in readEvents()")
}
select {
case w.Errors <- err:
case <-w.done:
return
}
continue
}
var offset uint32
// We don't know how many events we just read into the buffer
// While the offset points to at least one whole event...
for offset <= uint32(n-unix.SizeofInotifyEvent) {
// Point "raw" to the event in the buffer
raw := (*unix.InotifyEvent)(unsafe.Pointer(&buf[offset]))
mask := uint32(raw.Mask)
nameLen := uint32(raw.Len)
if mask&unix.IN_Q_OVERFLOW != 0 {
select {
case w.Errors <- ErrEventOverflow:
case <-w.done:
return
}
}
// If the event happened to the watched directory or the watched file, the kernel
// doesn't append the filename to the event, but we would like to always fill the
// the "Name" field with a valid filename. We retrieve the path of the watch from
// the "paths" map.
w.mu.Lock()
name, ok := w.paths[int(raw.Wd)]
// IN_DELETE_SELF occurs when the file/directory being watched is removed.
// This is a sign to clean up the maps, otherwise we are no longer in sync
// with the inotify kernel state which has already deleted the watch
// automatically.
if ok && mask&unix.IN_DELETE_SELF == unix.IN_DELETE_SELF {
delete(w.paths, int(raw.Wd))
delete(w.watches, name)
}
w.mu.Unlock()
if nameLen > 0 {
// Point "bytes" at the first byte of the filename
bytes := (*[unix.PathMax]byte)(unsafe.Pointer(&buf[offset+unix.SizeofInotifyEvent]))
// The filename is padded with NULL bytes. TrimRight() gets rid of those.
name += "/" + strings.TrimRight(string(bytes[0:nameLen]), "\000")
}
event := newEvent(name, mask)
// Send the events that are not ignored on the events channel
if !event.ignoreLinux(mask) {
select {
case w.Events <- event:
case <-w.done:
return
}
}
// Move to the next event in the buffer
offset += unix.SizeofInotifyEvent + nameLen
}
}
}
// Certain types of events can be "ignored" and not sent over the Events
// channel. Such as events marked ignore by the kernel, or MODIFY events
// against files that do not exist.
func (e *Event) ignoreLinux(mask uint32) bool {
// Ignore anything the inotify API says to ignore
if mask&unix.IN_IGNORED == unix.IN_IGNORED {
return true
}
// If the event is not a DELETE or RENAME, the file must exist.
// Otherwise the event is ignored.
// *Note*: this was put in place because it was seen that a MODIFY
// event was sent after the DELETE. This ignores that MODIFY and
// assumes a DELETE will come or has come if the file doesn't exist.
if !(e.Op&Remove == Remove || e.Op&Rename == Rename) {
_, statErr := os.Lstat(e.Name)
return os.IsNotExist(statErr)
}
return false
}
// newEvent returns an platform-independent Event based on an inotify mask.
func newEvent(name string, mask uint32) Event {
e := Event{Name: name}
if mask&unix.IN_CREATE == unix.IN_CREATE || mask&unix.IN_MOVED_TO == unix.IN_MOVED_TO {
e.Op |= Create
}
if mask&unix.IN_DELETE_SELF == unix.IN_DELETE_SELF || mask&unix.IN_DELETE == unix.IN_DELETE {
e.Op |= Remove
}
if mask&unix.IN_MODIFY == unix.IN_MODIFY {
e.Op |= Write
}
if mask&unix.IN_MOVE_SELF == unix.IN_MOVE_SELF || mask&unix.IN_MOVED_FROM == unix.IN_MOVED_FROM {
e.Op |= Rename
}
if mask&unix.IN_ATTRIB == unix.IN_ATTRIB {
e.Op |= Chmod
}
return e
}

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@ -1,187 +0,0 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux
package fsnotify
import (
"errors"
"golang.org/x/sys/unix"
)
type fdPoller struct {
fd int // File descriptor (as returned by the inotify_init() syscall)
epfd int // Epoll file descriptor
pipe [2]int // Pipe for waking up
}
func emptyPoller(fd int) *fdPoller {
poller := new(fdPoller)
poller.fd = fd
poller.epfd = -1
poller.pipe[0] = -1
poller.pipe[1] = -1
return poller
}
// Create a new inotify poller.
// This creates an inotify handler, and an epoll handler.
func newFdPoller(fd int) (*fdPoller, error) {
var errno error
poller := emptyPoller(fd)
defer func() {
if errno != nil {
poller.close()
}
}()
poller.fd = fd
// Create epoll fd
poller.epfd, errno = unix.EpollCreate1(0)
if poller.epfd == -1 {
return nil, errno
}
// Create pipe; pipe[0] is the read end, pipe[1] the write end.
errno = unix.Pipe2(poller.pipe[:], unix.O_NONBLOCK)
if errno != nil {
return nil, errno
}
// Register inotify fd with epoll
event := unix.EpollEvent{
Fd: int32(poller.fd),
Events: unix.EPOLLIN,
}
errno = unix.EpollCtl(poller.epfd, unix.EPOLL_CTL_ADD, poller.fd, &event)
if errno != nil {
return nil, errno
}
// Register pipe fd with epoll
event = unix.EpollEvent{
Fd: int32(poller.pipe[0]),
Events: unix.EPOLLIN,
}
errno = unix.EpollCtl(poller.epfd, unix.EPOLL_CTL_ADD, poller.pipe[0], &event)
if errno != nil {
return nil, errno
}
return poller, nil
}
// Wait using epoll.
// Returns true if something is ready to be read,
// false if there is not.
func (poller *fdPoller) wait() (bool, error) {
// 3 possible events per fd, and 2 fds, makes a maximum of 6 events.
// I don't know whether epoll_wait returns the number of events returned,
// or the total number of events ready.
// I decided to catch both by making the buffer one larger than the maximum.
events := make([]unix.EpollEvent, 7)
for {
n, errno := unix.EpollWait(poller.epfd, events, -1)
if n == -1 {
if errno == unix.EINTR {
continue
}
return false, errno
}
if n == 0 {
// If there are no events, try again.
continue
}
if n > 6 {
// This should never happen. More events were returned than should be possible.
return false, errors.New("epoll_wait returned more events than I know what to do with")
}
ready := events[:n]
epollhup := false
epollerr := false
epollin := false
for _, event := range ready {
if event.Fd == int32(poller.fd) {
if event.Events&unix.EPOLLHUP != 0 {
// This should not happen, but if it does, treat it as a wakeup.
epollhup = true
}
if event.Events&unix.EPOLLERR != 0 {
// If an error is waiting on the file descriptor, we should pretend
// something is ready to read, and let unix.Read pick up the error.
epollerr = true
}
if event.Events&unix.EPOLLIN != 0 {
// There is data to read.
epollin = true
}
}
if event.Fd == int32(poller.pipe[0]) {
if event.Events&unix.EPOLLHUP != 0 {
// Write pipe descriptor was closed, by us. This means we're closing down the
// watcher, and we should wake up.
}
if event.Events&unix.EPOLLERR != 0 {
// If an error is waiting on the pipe file descriptor.
// This is an absolute mystery, and should never ever happen.
return false, errors.New("Error on the pipe descriptor.")
}
if event.Events&unix.EPOLLIN != 0 {
// This is a regular wakeup, so we have to clear the buffer.
err := poller.clearWake()
if err != nil {
return false, err
}
}
}
}
if epollhup || epollerr || epollin {
return true, nil
}
return false, nil
}
}
// Close the write end of the poller.
func (poller *fdPoller) wake() error {
buf := make([]byte, 1)
n, errno := unix.Write(poller.pipe[1], buf)
if n == -1 {
if errno == unix.EAGAIN {
// Buffer is full, poller will wake.
return nil
}
return errno
}
return nil
}
func (poller *fdPoller) clearWake() error {
// You have to be woken up a LOT in order to get to 100!
buf := make([]byte, 100)
n, errno := unix.Read(poller.pipe[0], buf)
if n == -1 {
if errno == unix.EAGAIN {
// Buffer is empty, someone else cleared our wake.
return nil
}
return errno
}
return nil
}
// Close all poller file descriptors, but not the one passed to it.
func (poller *fdPoller) close() {
if poller.pipe[1] != -1 {
unix.Close(poller.pipe[1])
}
if poller.pipe[0] != -1 {
unix.Close(poller.pipe[0])
}
if poller.epfd != -1 {
unix.Close(poller.epfd)
}
}

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@ -1,503 +0,0 @@
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build freebsd openbsd netbsd dragonfly darwin
package fsnotify
import (
"errors"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"sync"
"time"
"golang.org/x/sys/unix"
)
// Watcher watches a set of files, delivering events to a channel.
type Watcher struct {
Events chan Event
Errors chan error
done chan bool // Channel for sending a "quit message" to the reader goroutine
kq int // File descriptor (as returned by the kqueue() syscall).
mu sync.Mutex // Protects access to watcher data
watches map[string]int // Map of watched file descriptors (key: path).
externalWatches map[string]bool // Map of watches added by user of the library.
dirFlags map[string]uint32 // Map of watched directories to fflags used in kqueue.
paths map[int]pathInfo // Map file descriptors to path names for processing kqueue events.
fileExists map[string]bool // Keep track of if we know this file exists (to stop duplicate create events).
isClosed bool // Set to true when Close() is first called
}
type pathInfo struct {
name string
isDir bool
}
// NewWatcher establishes a new watcher with the underlying OS and begins waiting for events.
func NewWatcher() (*Watcher, error) {
kq, err := kqueue()
if err != nil {
return nil, err
}
w := &Watcher{
kq: kq,
watches: make(map[string]int),
dirFlags: make(map[string]uint32),
paths: make(map[int]pathInfo),
fileExists: make(map[string]bool),
externalWatches: make(map[string]bool),
Events: make(chan Event),
Errors: make(chan error),
done: make(chan bool),
}
go w.readEvents()
return w, nil
}
// Close removes all watches and closes the events channel.
func (w *Watcher) Close() error {
w.mu.Lock()
if w.isClosed {
w.mu.Unlock()
return nil
}
w.isClosed = true
w.mu.Unlock()
// copy paths to remove while locked
w.mu.Lock()
var pathsToRemove = make([]string, 0, len(w.watches))
for name := range w.watches {
pathsToRemove = append(pathsToRemove, name)
}
w.mu.Unlock()
// unlock before calling Remove, which also locks
var err error
for _, name := range pathsToRemove {
if e := w.Remove(name); e != nil && err == nil {
err = e
}
}
// Send "quit" message to the reader goroutine:
w.done <- true
return nil
}
// Add starts watching the named file or directory (non-recursively).
func (w *Watcher) Add(name string) error {
w.mu.Lock()
w.externalWatches[name] = true
w.mu.Unlock()
_, err := w.addWatch(name, noteAllEvents)
return err
}
// Remove stops watching the the named file or directory (non-recursively).
func (w *Watcher) Remove(name string) error {
name = filepath.Clean(name)
w.mu.Lock()
watchfd, ok := w.watches[name]
w.mu.Unlock()
if !ok {
return fmt.Errorf("can't remove non-existent kevent watch for: %s", name)
}
const registerRemove = unix.EV_DELETE
if err := register(w.kq, []int{watchfd}, registerRemove, 0); err != nil {
return err
}
unix.Close(watchfd)
w.mu.Lock()
isDir := w.paths[watchfd].isDir
delete(w.watches, name)
delete(w.paths, watchfd)
delete(w.dirFlags, name)
w.mu.Unlock()
// Find all watched paths that are in this directory that are not external.
if isDir {
var pathsToRemove []string
w.mu.Lock()
for _, path := range w.paths {
wdir, _ := filepath.Split(path.name)
if filepath.Clean(wdir) == name {
if !w.externalWatches[path.name] {
pathsToRemove = append(pathsToRemove, path.name)
}
}
}
w.mu.Unlock()
for _, name := range pathsToRemove {
// Since these are internal, not much sense in propagating error
// to the user, as that will just confuse them with an error about
// a path they did not explicitly watch themselves.
w.Remove(name)
}
}
return nil
}
// Watch all events (except NOTE_EXTEND, NOTE_LINK, NOTE_REVOKE)
const noteAllEvents = unix.NOTE_DELETE | unix.NOTE_WRITE | unix.NOTE_ATTRIB | unix.NOTE_RENAME
// keventWaitTime to block on each read from kevent
var keventWaitTime = durationToTimespec(100 * time.Millisecond)
// addWatch adds name to the watched file set.
// The flags are interpreted as described in kevent(2).
// Returns the real path to the file which was added, if any, which may be different from the one passed in the case of symlinks.
func (w *Watcher) addWatch(name string, flags uint32) (string, error) {
var isDir bool
// Make ./name and name equivalent
name = filepath.Clean(name)
w.mu.Lock()
if w.isClosed {
w.mu.Unlock()
return "", errors.New("kevent instance already closed")
}
watchfd, alreadyWatching := w.watches[name]
// We already have a watch, but we can still override flags.
if alreadyWatching {
isDir = w.paths[watchfd].isDir
}
w.mu.Unlock()
if !alreadyWatching {
fi, err := os.Lstat(name)
if err != nil {
return "", err
}
// Don't watch sockets.
if fi.Mode()&os.ModeSocket == os.ModeSocket {
return "", nil
}
// Don't watch named pipes.
if fi.Mode()&os.ModeNamedPipe == os.ModeNamedPipe {
return "", nil
}
// Follow Symlinks
// Unfortunately, Linux can add bogus symlinks to watch list without
// issue, and Windows can't do symlinks period (AFAIK). To maintain
// consistency, we will act like everything is fine. There will simply
// be no file events for broken symlinks.
// Hence the returns of nil on errors.
if fi.Mode()&os.ModeSymlink == os.ModeSymlink {
name, err = filepath.EvalSymlinks(name)
if err != nil {
return "", nil
}
w.mu.Lock()
_, alreadyWatching = w.watches[name]
w.mu.Unlock()
if alreadyWatching {
return name, nil
}
fi, err = os.Lstat(name)
if err != nil {
return "", nil
}
}
watchfd, err = unix.Open(name, openMode, 0700)
if watchfd == -1 {
return "", err
}
isDir = fi.IsDir()
}
const registerAdd = unix.EV_ADD | unix.EV_CLEAR | unix.EV_ENABLE
if err := register(w.kq, []int{watchfd}, registerAdd, flags); err != nil {
unix.Close(watchfd)
return "", err
}
if !alreadyWatching {
w.mu.Lock()
w.watches[name] = watchfd
w.paths[watchfd] = pathInfo{name: name, isDir: isDir}
w.mu.Unlock()
}
if isDir {
// Watch the directory if it has not been watched before,
// or if it was watched before, but perhaps only a NOTE_DELETE (watchDirectoryFiles)
w.mu.Lock()
watchDir := (flags&unix.NOTE_WRITE) == unix.NOTE_WRITE &&
(!alreadyWatching || (w.dirFlags[name]&unix.NOTE_WRITE) != unix.NOTE_WRITE)
// Store flags so this watch can be updated later
w.dirFlags[name] = flags
w.mu.Unlock()
if watchDir {
if err := w.watchDirectoryFiles(name); err != nil {
return "", err
}
}
}
return name, nil
}
// readEvents reads from kqueue and converts the received kevents into
// Event values that it sends down the Events channel.
func (w *Watcher) readEvents() {
eventBuffer := make([]unix.Kevent_t, 10)
for {
// See if there is a message on the "done" channel
select {
case <-w.done:
err := unix.Close(w.kq)
if err != nil {
w.Errors <- err
}
close(w.Events)
close(w.Errors)
return
default:
}
// Get new events
kevents, err := read(w.kq, eventBuffer, &keventWaitTime)
// EINTR is okay, the syscall was interrupted before timeout expired.
if err != nil && err != unix.EINTR {
w.Errors <- err
continue
}
// Flush the events we received to the Events channel
for len(kevents) > 0 {
kevent := &kevents[0]
watchfd := int(kevent.Ident)
mask := uint32(kevent.Fflags)
w.mu.Lock()
path := w.paths[watchfd]
w.mu.Unlock()
event := newEvent(path.name, mask)
if path.isDir && !(event.Op&Remove == Remove) {
// Double check to make sure the directory exists. This can happen when
// we do a rm -fr on a recursively watched folders and we receive a
// modification event first but the folder has been deleted and later
// receive the delete event
if _, err := os.Lstat(event.Name); os.IsNotExist(err) {
// mark is as delete event
event.Op |= Remove
}
}
if event.Op&Rename == Rename || event.Op&Remove == Remove {
w.Remove(event.Name)
w.mu.Lock()
delete(w.fileExists, event.Name)
w.mu.Unlock()
}
if path.isDir && event.Op&Write == Write && !(event.Op&Remove == Remove) {
w.sendDirectoryChangeEvents(event.Name)
} else {
// Send the event on the Events channel
w.Events <- event
}
if event.Op&Remove == Remove {
// Look for a file that may have overwritten this.
// For example, mv f1 f2 will delete f2, then create f2.
if path.isDir {
fileDir := filepath.Clean(event.Name)
w.mu.Lock()
_, found := w.watches[fileDir]
w.mu.Unlock()
if found {
// make sure the directory exists before we watch for changes. When we
// do a recursive watch and perform rm -fr, the parent directory might
// have gone missing, ignore the missing directory and let the
// upcoming delete event remove the watch from the parent directory.
if _, err := os.Lstat(fileDir); err == nil {
w.sendDirectoryChangeEvents(fileDir)
}
}
} else {
filePath := filepath.Clean(event.Name)
if fileInfo, err := os.Lstat(filePath); err == nil {
w.sendFileCreatedEventIfNew(filePath, fileInfo)
}
}
}
// Move to next event
kevents = kevents[1:]
}
}
}
// newEvent returns an platform-independent Event based on kqueue Fflags.
func newEvent(name string, mask uint32) Event {
e := Event{Name: name}
if mask&unix.NOTE_DELETE == unix.NOTE_DELETE {
e.Op |= Remove
}
if mask&unix.NOTE_WRITE == unix.NOTE_WRITE {
e.Op |= Write
}
if mask&unix.NOTE_RENAME == unix.NOTE_RENAME {
e.Op |= Rename
}
if mask&unix.NOTE_ATTRIB == unix.NOTE_ATTRIB {
e.Op |= Chmod
}
return e
}
func newCreateEvent(name string) Event {
return Event{Name: name, Op: Create}
}
// watchDirectoryFiles to mimic inotify when adding a watch on a directory
func (w *Watcher) watchDirectoryFiles(dirPath string) error {
// Get all files
files, err := ioutil.ReadDir(dirPath)
if err != nil {
return err
}
for _, fileInfo := range files {
filePath := filepath.Join(dirPath, fileInfo.Name())
filePath, err = w.internalWatch(filePath, fileInfo)
if err != nil {
return err
}
w.mu.Lock()
w.fileExists[filePath] = true
w.mu.Unlock()
}
return nil
}
// sendDirectoryEvents searches the directory for newly created files
// and sends them over the event channel. This functionality is to have
// the BSD version of fsnotify match Linux inotify which provides a
// create event for files created in a watched directory.
func (w *Watcher) sendDirectoryChangeEvents(dirPath string) {
// Get all files
files, err := ioutil.ReadDir(dirPath)
if err != nil {
w.Errors <- err
}
// Search for new files
for _, fileInfo := range files {
filePath := filepath.Join(dirPath, fileInfo.Name())
err := w.sendFileCreatedEventIfNew(filePath, fileInfo)
if err != nil {
return
}
}
}
// sendFileCreatedEvent sends a create event if the file isn't already being tracked.
func (w *Watcher) sendFileCreatedEventIfNew(filePath string, fileInfo os.FileInfo) (err error) {
w.mu.Lock()
_, doesExist := w.fileExists[filePath]
w.mu.Unlock()
if !doesExist {
// Send create event
w.Events <- newCreateEvent(filePath)
}
// like watchDirectoryFiles (but without doing another ReadDir)
filePath, err = w.internalWatch(filePath, fileInfo)
if err != nil {
return err
}
w.mu.Lock()
w.fileExists[filePath] = true
w.mu.Unlock()
return nil
}
func (w *Watcher) internalWatch(name string, fileInfo os.FileInfo) (string, error) {
if fileInfo.IsDir() {
// mimic Linux providing delete events for subdirectories
// but preserve the flags used if currently watching subdirectory
w.mu.Lock()
flags := w.dirFlags[name]
w.mu.Unlock()
flags |= unix.NOTE_DELETE | unix.NOTE_RENAME
return w.addWatch(name, flags)
}
// watch file to mimic Linux inotify
return w.addWatch(name, noteAllEvents)
}
// kqueue creates a new kernel event queue and returns a descriptor.
func kqueue() (kq int, err error) {
kq, err = unix.Kqueue()
if kq == -1 {
return kq, err
}
return kq, nil
}
// register events with the queue
func register(kq int, fds []int, flags int, fflags uint32) error {
changes := make([]unix.Kevent_t, len(fds))
for i, fd := range fds {
// SetKevent converts int to the platform-specific types:
unix.SetKevent(&changes[i], fd, unix.EVFILT_VNODE, flags)
changes[i].Fflags = fflags
}
// register the events
success, err := unix.Kevent(kq, changes, nil, nil)
if success == -1 {
return err
}
return nil
}
// read retrieves pending events, or waits until an event occurs.
// A timeout of nil blocks indefinitely, while 0 polls the queue.
func read(kq int, events []unix.Kevent_t, timeout *unix.Timespec) ([]unix.Kevent_t, error) {
n, err := unix.Kevent(kq, nil, events, timeout)
if err != nil {
return nil, err
}
return events[0:n], nil
}
// durationToTimespec prepares a timeout value
func durationToTimespec(d time.Duration) unix.Timespec {
return unix.NsecToTimespec(d.Nanoseconds())
}

View file

@ -1,11 +0,0 @@
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build freebsd openbsd netbsd dragonfly
package fsnotify
import "golang.org/x/sys/unix"
const openMode = unix.O_NONBLOCK | unix.O_RDONLY

View file

@ -1,12 +0,0 @@
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin
package fsnotify
import "golang.org/x/sys/unix"
// note: this constant is not defined on BSD
const openMode = unix.O_EVTONLY

View file

@ -1,561 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows
package fsnotify
import (
"errors"
"fmt"
"os"
"path/filepath"
"runtime"
"sync"
"syscall"
"unsafe"
)
// Watcher watches a set of files, delivering events to a channel.
type Watcher struct {
Events chan Event
Errors chan error
isClosed bool // Set to true when Close() is first called
mu sync.Mutex // Map access
port syscall.Handle // Handle to completion port
watches watchMap // Map of watches (key: i-number)
input chan *input // Inputs to the reader are sent on this channel
quit chan chan<- error
}
// NewWatcher establishes a new watcher with the underlying OS and begins waiting for events.
func NewWatcher() (*Watcher, error) {
port, e := syscall.CreateIoCompletionPort(syscall.InvalidHandle, 0, 0, 0)
if e != nil {
return nil, os.NewSyscallError("CreateIoCompletionPort", e)
}
w := &Watcher{
port: port,
watches: make(watchMap),
input: make(chan *input, 1),
Events: make(chan Event, 50),
Errors: make(chan error),
quit: make(chan chan<- error, 1),
}
go w.readEvents()
return w, nil
}
// Close removes all watches and closes the events channel.
func (w *Watcher) Close() error {
if w.isClosed {
return nil
}
w.isClosed = true
// Send "quit" message to the reader goroutine
ch := make(chan error)
w.quit <- ch
if err := w.wakeupReader(); err != nil {
return err
}
return <-ch
}
// Add starts watching the named file or directory (non-recursively).
func (w *Watcher) Add(name string) error {
if w.isClosed {
return errors.New("watcher already closed")
}
in := &input{
op: opAddWatch,
path: filepath.Clean(name),
flags: sysFSALLEVENTS,
reply: make(chan error),
}
w.input <- in
if err := w.wakeupReader(); err != nil {
return err
}
return <-in.reply
}
// Remove stops watching the the named file or directory (non-recursively).
func (w *Watcher) Remove(name string) error {
in := &input{
op: opRemoveWatch,
path: filepath.Clean(name),
reply: make(chan error),
}
w.input <- in
if err := w.wakeupReader(); err != nil {
return err
}
return <-in.reply
}
const (
// Options for AddWatch
sysFSONESHOT = 0x80000000
sysFSONLYDIR = 0x1000000
// Events
sysFSACCESS = 0x1
sysFSALLEVENTS = 0xfff
sysFSATTRIB = 0x4
sysFSCLOSE = 0x18
sysFSCREATE = 0x100
sysFSDELETE = 0x200
sysFSDELETESELF = 0x400
sysFSMODIFY = 0x2
sysFSMOVE = 0xc0
sysFSMOVEDFROM = 0x40
sysFSMOVEDTO = 0x80
sysFSMOVESELF = 0x800
// Special events
sysFSIGNORED = 0x8000
sysFSQOVERFLOW = 0x4000
)
func newEvent(name string, mask uint32) Event {
e := Event{Name: name}
if mask&sysFSCREATE == sysFSCREATE || mask&sysFSMOVEDTO == sysFSMOVEDTO {
e.Op |= Create
}
if mask&sysFSDELETE == sysFSDELETE || mask&sysFSDELETESELF == sysFSDELETESELF {
e.Op |= Remove
}
if mask&sysFSMODIFY == sysFSMODIFY {
e.Op |= Write
}
if mask&sysFSMOVE == sysFSMOVE || mask&sysFSMOVESELF == sysFSMOVESELF || mask&sysFSMOVEDFROM == sysFSMOVEDFROM {
e.Op |= Rename
}
if mask&sysFSATTRIB == sysFSATTRIB {
e.Op |= Chmod
}
return e
}
const (
opAddWatch = iota
opRemoveWatch
)
const (
provisional uint64 = 1 << (32 + iota)
)
type input struct {
op int
path string
flags uint32
reply chan error
}
type inode struct {
handle syscall.Handle
volume uint32
index uint64
}
type watch struct {
ov syscall.Overlapped
ino *inode // i-number
path string // Directory path
mask uint64 // Directory itself is being watched with these notify flags
names map[string]uint64 // Map of names being watched and their notify flags
rename string // Remembers the old name while renaming a file
buf [4096]byte
}
type indexMap map[uint64]*watch
type watchMap map[uint32]indexMap
func (w *Watcher) wakeupReader() error {
e := syscall.PostQueuedCompletionStatus(w.port, 0, 0, nil)
if e != nil {
return os.NewSyscallError("PostQueuedCompletionStatus", e)
}
return nil
}
func getDir(pathname string) (dir string, err error) {
attr, e := syscall.GetFileAttributes(syscall.StringToUTF16Ptr(pathname))
if e != nil {
return "", os.NewSyscallError("GetFileAttributes", e)
}
if attr&syscall.FILE_ATTRIBUTE_DIRECTORY != 0 {
dir = pathname
} else {
dir, _ = filepath.Split(pathname)
dir = filepath.Clean(dir)
}
return
}
func getIno(path string) (ino *inode, err error) {
h, e := syscall.CreateFile(syscall.StringToUTF16Ptr(path),
syscall.FILE_LIST_DIRECTORY,
syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE|syscall.FILE_SHARE_DELETE,
nil, syscall.OPEN_EXISTING,
syscall.FILE_FLAG_BACKUP_SEMANTICS|syscall.FILE_FLAG_OVERLAPPED, 0)
if e != nil {
return nil, os.NewSyscallError("CreateFile", e)
}
var fi syscall.ByHandleFileInformation
if e = syscall.GetFileInformationByHandle(h, &fi); e != nil {
syscall.CloseHandle(h)
return nil, os.NewSyscallError("GetFileInformationByHandle", e)
}
ino = &inode{
handle: h,
volume: fi.VolumeSerialNumber,
index: uint64(fi.FileIndexHigh)<<32 | uint64(fi.FileIndexLow),
}
return ino, nil
}
// Must run within the I/O thread.
func (m watchMap) get(ino *inode) *watch {
if i := m[ino.volume]; i != nil {
return i[ino.index]
}
return nil
}
// Must run within the I/O thread.
func (m watchMap) set(ino *inode, watch *watch) {
i := m[ino.volume]
if i == nil {
i = make(indexMap)
m[ino.volume] = i
}
i[ino.index] = watch
}
// Must run within the I/O thread.
func (w *Watcher) addWatch(pathname string, flags uint64) error {
dir, err := getDir(pathname)
if err != nil {
return err
}
if flags&sysFSONLYDIR != 0 && pathname != dir {
return nil
}
ino, err := getIno(dir)
if err != nil {
return err
}
w.mu.Lock()
watchEntry := w.watches.get(ino)
w.mu.Unlock()
if watchEntry == nil {
if _, e := syscall.CreateIoCompletionPort(ino.handle, w.port, 0, 0); e != nil {
syscall.CloseHandle(ino.handle)
return os.NewSyscallError("CreateIoCompletionPort", e)
}
watchEntry = &watch{
ino: ino,
path: dir,
names: make(map[string]uint64),
}
w.mu.Lock()
w.watches.set(ino, watchEntry)
w.mu.Unlock()
flags |= provisional
} else {
syscall.CloseHandle(ino.handle)
}
if pathname == dir {
watchEntry.mask |= flags
} else {
watchEntry.names[filepath.Base(pathname)] |= flags
}
if err = w.startRead(watchEntry); err != nil {
return err
}
if pathname == dir {
watchEntry.mask &= ^provisional
} else {
watchEntry.names[filepath.Base(pathname)] &= ^provisional
}
return nil
}
// Must run within the I/O thread.
func (w *Watcher) remWatch(pathname string) error {
dir, err := getDir(pathname)
if err != nil {
return err
}
ino, err := getIno(dir)
if err != nil {
return err
}
w.mu.Lock()
watch := w.watches.get(ino)
w.mu.Unlock()
if watch == nil {
return fmt.Errorf("can't remove non-existent watch for: %s", pathname)
}
if pathname == dir {
w.sendEvent(watch.path, watch.mask&sysFSIGNORED)
watch.mask = 0
} else {
name := filepath.Base(pathname)
w.sendEvent(filepath.Join(watch.path, name), watch.names[name]&sysFSIGNORED)
delete(watch.names, name)
}
return w.startRead(watch)
}
// Must run within the I/O thread.
func (w *Watcher) deleteWatch(watch *watch) {
for name, mask := range watch.names {
if mask&provisional == 0 {
w.sendEvent(filepath.Join(watch.path, name), mask&sysFSIGNORED)
}
delete(watch.names, name)
}
if watch.mask != 0 {
if watch.mask&provisional == 0 {
w.sendEvent(watch.path, watch.mask&sysFSIGNORED)
}
watch.mask = 0
}
}
// Must run within the I/O thread.
func (w *Watcher) startRead(watch *watch) error {
if e := syscall.CancelIo(watch.ino.handle); e != nil {
w.Errors <- os.NewSyscallError("CancelIo", e)
w.deleteWatch(watch)
}
mask := toWindowsFlags(watch.mask)
for _, m := range watch.names {
mask |= toWindowsFlags(m)
}
if mask == 0 {
if e := syscall.CloseHandle(watch.ino.handle); e != nil {
w.Errors <- os.NewSyscallError("CloseHandle", e)
}
w.mu.Lock()
delete(w.watches[watch.ino.volume], watch.ino.index)
w.mu.Unlock()
return nil
}
e := syscall.ReadDirectoryChanges(watch.ino.handle, &watch.buf[0],
uint32(unsafe.Sizeof(watch.buf)), false, mask, nil, &watch.ov, 0)
if e != nil {
err := os.NewSyscallError("ReadDirectoryChanges", e)
if e == syscall.ERROR_ACCESS_DENIED && watch.mask&provisional == 0 {
// Watched directory was probably removed
if w.sendEvent(watch.path, watch.mask&sysFSDELETESELF) {
if watch.mask&sysFSONESHOT != 0 {
watch.mask = 0
}
}
err = nil
}
w.deleteWatch(watch)
w.startRead(watch)
return err
}
return nil
}
// readEvents reads from the I/O completion port, converts the
// received events into Event objects and sends them via the Events channel.
// Entry point to the I/O thread.
func (w *Watcher) readEvents() {
var (
n, key uint32
ov *syscall.Overlapped
)
runtime.LockOSThread()
for {
e := syscall.GetQueuedCompletionStatus(w.port, &n, &key, &ov, syscall.INFINITE)
watch := (*watch)(unsafe.Pointer(ov))
if watch == nil {
select {
case ch := <-w.quit:
w.mu.Lock()
var indexes []indexMap
for _, index := range w.watches {
indexes = append(indexes, index)
}
w.mu.Unlock()
for _, index := range indexes {
for _, watch := range index {
w.deleteWatch(watch)
w.startRead(watch)
}
}
var err error
if e := syscall.CloseHandle(w.port); e != nil {
err = os.NewSyscallError("CloseHandle", e)
}
close(w.Events)
close(w.Errors)
ch <- err
return
case in := <-w.input:
switch in.op {
case opAddWatch:
in.reply <- w.addWatch(in.path, uint64(in.flags))
case opRemoveWatch:
in.reply <- w.remWatch(in.path)
}
default:
}
continue
}
switch e {
case syscall.ERROR_MORE_DATA:
if watch == nil {
w.Errors <- errors.New("ERROR_MORE_DATA has unexpectedly null lpOverlapped buffer")
} else {
// The i/o succeeded but the buffer is full.
// In theory we should be building up a full packet.
// In practice we can get away with just carrying on.
n = uint32(unsafe.Sizeof(watch.buf))
}
case syscall.ERROR_ACCESS_DENIED:
// Watched directory was probably removed
w.sendEvent(watch.path, watch.mask&sysFSDELETESELF)
w.deleteWatch(watch)
w.startRead(watch)
continue
case syscall.ERROR_OPERATION_ABORTED:
// CancelIo was called on this handle
continue
default:
w.Errors <- os.NewSyscallError("GetQueuedCompletionPort", e)
continue
case nil:
}
var offset uint32
for {
if n == 0 {
w.Events <- newEvent("", sysFSQOVERFLOW)
w.Errors <- errors.New("short read in readEvents()")
break
}
// Point "raw" to the event in the buffer
raw := (*syscall.FileNotifyInformation)(unsafe.Pointer(&watch.buf[offset]))
buf := (*[syscall.MAX_PATH]uint16)(unsafe.Pointer(&raw.FileName))
name := syscall.UTF16ToString(buf[:raw.FileNameLength/2])
fullname := filepath.Join(watch.path, name)
var mask uint64
switch raw.Action {
case syscall.FILE_ACTION_REMOVED:
mask = sysFSDELETESELF
case syscall.FILE_ACTION_MODIFIED:
mask = sysFSMODIFY
case syscall.FILE_ACTION_RENAMED_OLD_NAME:
watch.rename = name
case syscall.FILE_ACTION_RENAMED_NEW_NAME:
if watch.names[watch.rename] != 0 {
watch.names[name] |= watch.names[watch.rename]
delete(watch.names, watch.rename)
mask = sysFSMOVESELF
}
}
sendNameEvent := func() {
if w.sendEvent(fullname, watch.names[name]&mask) {
if watch.names[name]&sysFSONESHOT != 0 {
delete(watch.names, name)
}
}
}
if raw.Action != syscall.FILE_ACTION_RENAMED_NEW_NAME {
sendNameEvent()
}
if raw.Action == syscall.FILE_ACTION_REMOVED {
w.sendEvent(fullname, watch.names[name]&sysFSIGNORED)
delete(watch.names, name)
}
if w.sendEvent(fullname, watch.mask&toFSnotifyFlags(raw.Action)) {
if watch.mask&sysFSONESHOT != 0 {
watch.mask = 0
}
}
if raw.Action == syscall.FILE_ACTION_RENAMED_NEW_NAME {
fullname = filepath.Join(watch.path, watch.rename)
sendNameEvent()
}
// Move to the next event in the buffer
if raw.NextEntryOffset == 0 {
break
}
offset += raw.NextEntryOffset
// Error!
if offset >= n {
w.Errors <- errors.New("Windows system assumed buffer larger than it is, events have likely been missed.")
break
}
}
if err := w.startRead(watch); err != nil {
w.Errors <- err
}
}
}
func (w *Watcher) sendEvent(name string, mask uint64) bool {
if mask == 0 {
return false
}
event := newEvent(name, uint32(mask))
select {
case ch := <-w.quit:
w.quit <- ch
case w.Events <- event:
}
return true
}
func toWindowsFlags(mask uint64) uint32 {
var m uint32
if mask&sysFSACCESS != 0 {
m |= syscall.FILE_NOTIFY_CHANGE_LAST_ACCESS
}
if mask&sysFSMODIFY != 0 {
m |= syscall.FILE_NOTIFY_CHANGE_LAST_WRITE
}
if mask&sysFSATTRIB != 0 {
m |= syscall.FILE_NOTIFY_CHANGE_ATTRIBUTES
}
if mask&(sysFSMOVE|sysFSCREATE|sysFSDELETE) != 0 {
m |= syscall.FILE_NOTIFY_CHANGE_FILE_NAME | syscall.FILE_NOTIFY_CHANGE_DIR_NAME
}
return m
}
func toFSnotifyFlags(action uint32) uint64 {
switch action {
case syscall.FILE_ACTION_ADDED:
return sysFSCREATE
case syscall.FILE_ACTION_REMOVED:
return sysFSDELETE
case syscall.FILE_ACTION_MODIFIED:
return sysFSMODIFY
case syscall.FILE_ACTION_RENAMED_OLD_NAME:
return sysFSMOVEDFROM
case syscall.FILE_ACTION_RENAMED_NEW_NAME:
return sysFSMOVEDTO
}
return 0
}

View file

@ -1,15 +0,0 @@
language: go
sudo: false
matrix:
include:
- go: 1.7
- go: 1.8
- go: 1.x
- go: master
allow_failures:
- go: master
script:
- go get -t -v ./...
- diff -u <(echo -n) <(gofmt -d -s .)
- go tool vet .
- go test -v -race ./...

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@ -1,22 +0,0 @@
Copyright (c) 2013 The Gorilla Feeds Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

View file

@ -1,187 +0,0 @@
## gmemstr/feeds
[![GoDoc](https://godoc.org/github.com/gorilla/feeds?status.svg)](https://godoc.org/github.com/gorilla/feeds)
feeds is a web feed generator library for generating RSS, Atom and JSON feeds from Go
applications.
This is a fork by gmemstr which aims to make feeds more "podcast-centered". Essentially making
things like optional iTunes tags work properly.
### Goals
* Provide a simple interface to create both Atom & RSS 2.0 feeds
* Full support for [Atom][atom], [RSS 2.0][rss], and [JSON Feed Version 1][jsonfeed] spec elements
* Ability to modify particulars for each spec
[atom]: https://tools.ietf.org/html/rfc4287
[rss]: http://www.rssboard.org/rss-specification
[jsonfeed]: https://jsonfeed.org/version/1
### Usage
```go
package main
import (
"fmt"
"log"
"time"
"github.com/gorilla/feeds"
)
func main() {
now := time.Now()
feed := &feeds.Feed{
Title: "jmoiron.net blog",
Link: &feeds.Link{Href: "http://jmoiron.net/blog"},
Description: "discussion about tech, footie, photos",
Author: &feeds.Author{Name: "Jason Moiron", Email: "jmoiron@jmoiron.net"},
Created: now,
}
feed.Items = []*feeds.Item{
&feeds.Item{
Title: "Limiting Concurrency in Go",
Link: &feeds.Link{Href: "http://jmoiron.net/blog/limiting-concurrency-in-go/"},
Description: "A discussion on controlled parallelism in golang",
Author: &feeds.Author{Name: "Jason Moiron", Email: "jmoiron@jmoiron.net"},
Created: now,
},
&feeds.Item{
Title: "Logic-less Template Redux",
Link: &feeds.Link{Href: "http://jmoiron.net/blog/logicless-template-redux/"},
Description: "More thoughts on logicless templates",
Created: now,
},
&feeds.Item{
Title: "Idiomatic Code Reuse in Go",
Link: &feeds.Link{Href: "http://jmoiron.net/blog/idiomatic-code-reuse-in-go/"},
Description: "How to use interfaces <em>effectively</em>",
Created: now,
},
}
atom, err := feed.ToAtom()
if err != nil {
log.Fatal(err)
}
rss, err := feed.ToRss()
if err != nil {
log.Fatal(err)
}
json, err := feed.ToJSON()
if err != nil {
log.Fatal(err)
}
fmt.Println(atom, "\n", rss, "\n", json)
}
```
Outputs:
```xml
<?xml version="1.0" encoding="UTF-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<title>jmoiron.net blog</title>
<link href="http://jmoiron.net/blog"></link>
<id>http://jmoiron.net/blog</id>
<updated>2013-01-16T03:26:01-05:00</updated>
<summary>discussion about tech, footie, photos</summary>
<entry>
<title>Limiting Concurrency in Go</title>
<link href="http://jmoiron.net/blog/limiting-concurrency-in-go/"></link>
<updated>2013-01-16T03:26:01-05:00</updated>
<id>tag:jmoiron.net,2013-01-16:/blog/limiting-concurrency-in-go/</id>
<summary type="html">A discussion on controlled parallelism in golang</summary>
<author>
<name>Jason Moiron</name>
<email>jmoiron@jmoiron.net</email>
</author>
</entry>
<entry>
<title>Logic-less Template Redux</title>
<link href="http://jmoiron.net/blog/logicless-template-redux/"></link>
<updated>2013-01-16T03:26:01-05:00</updated>
<id>tag:jmoiron.net,2013-01-16:/blog/logicless-template-redux/</id>
<summary type="html">More thoughts on logicless templates</summary>
<author></author>
</entry>
<entry>
<title>Idiomatic Code Reuse in Go</title>
<link href="http://jmoiron.net/blog/idiomatic-code-reuse-in-go/"></link>
<updated>2013-01-16T03:26:01-05:00</updated>
<id>tag:jmoiron.net,2013-01-16:/blog/idiomatic-code-reuse-in-go/</id>
<summary type="html">How to use interfaces &lt;em&gt;effectively&lt;/em&gt;</summary>
<author></author>
</entry>
</feed>
<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0">
<channel>
<title>jmoiron.net blog</title>
<link>http://jmoiron.net/blog</link>
<description>discussion about tech, footie, photos</description>
<managingEditor>jmoiron@jmoiron.net (Jason Moiron)</managingEditor>
<pubDate>2013-01-16T03:22:24-05:00</pubDate>
<item>
<title>Limiting Concurrency in Go</title>
<link>http://jmoiron.net/blog/limiting-concurrency-in-go/</link>
<description>A discussion on controlled parallelism in golang</description>
<pubDate>2013-01-16T03:22:24-05:00</pubDate>
</item>
<item>
<title>Logic-less Template Redux</title>
<link>http://jmoiron.net/blog/logicless-template-redux/</link>
<description>More thoughts on logicless templates</description>
<pubDate>2013-01-16T03:22:24-05:00</pubDate>
</item>
<item>
<title>Idiomatic Code Reuse in Go</title>
<link>http://jmoiron.net/blog/idiomatic-code-reuse-in-go/</link>
<description>How to use interfaces &lt;em&gt;effectively&lt;/em&gt;</description>
<pubDate>2013-01-16T03:22:24-05:00</pubDate>
</item>
</channel>
</rss>
{
"version": "https://jsonfeed.org/version/1",
"title": "jmoiron.net blog",
"home_page_url": "http://jmoiron.net/blog",
"description": "discussion about tech, footie, photos",
"author": {
"name": "Jason Moiron"
},
"items": [
{
"id": "",
"url": "http://jmoiron.net/blog/limiting-concurrency-in-go/",
"title": "Limiting Concurrency in Go",
"summary": "A discussion on controlled parallelism in golang",
"date_published": "2013-01-16T03:22:24.530817846-05:00",
"author": {
"name": "Jason Moiron"
}
},
{
"id": "",
"url": "http://jmoiron.net/blog/logicless-template-redux/",
"title": "Logic-less Template Redux",
"summary": "More thoughts on logicless templates",
"date_published": "2013-01-16T03:22:24.530817846-05:00"
},
{
"id": "",
"url": "http://jmoiron.net/blog/idiomatic-code-reuse-in-go/",
"title": "Idiomatic Code Reuse in Go",
"summary": "How to use interfaces \u003cem\u003eeffectively\u003c/em\u003e",
"date_published": "2013-01-16T03:22:24.530817846-05:00"
}
]
}
```

View file

@ -1,163 +0,0 @@
package feeds
import (
"encoding/xml"
"fmt"
"net/url"
"strconv"
"time"
)
// Generates Atom feed as XML
const ns = "http://www.w3.org/2005/Atom"
type AtomPerson struct {
Name string `xml:"name,omitempty"`
Uri string `xml:"uri,omitempty"`
Email string `xml:"email,omitempty"`
}
type AtomSummary struct {
XMLName xml.Name `xml:"summary"`
Content string `xml:",chardata"`
Type string `xml:"type,attr"`
}
type AtomContent struct {
XMLName xml.Name `xml:"content"`
Content string `xml:",chardata"`
Type string `xml:"type,attr"`
}
type AtomAuthor struct {
XMLName xml.Name `xml:"author"`
AtomPerson
}
type AtomContributor struct {
XMLName xml.Name `xml:"contributor"`
AtomPerson
}
type AtomEntry struct {
XMLName xml.Name `xml:"entry"`
Xmlns string `xml:"xmlns,attr,omitempty"`
Title string `xml:"title"` // required
Updated string `xml:"updated"` // required
Id string `xml:"id"` // required
Category string `xml:"category,omitempty"`
Content *AtomContent
Rights string `xml:"rights,omitempty"`
Source string `xml:"source,omitempty"`
Published string `xml:"published,omitempty"`
Contributor *AtomContributor
Link *AtomLink // required if no child 'content' elements
Summary *AtomSummary // required if content has src or content is base64
Author *AtomAuthor // required if feed lacks an author
}
type AtomLink struct {
//Atom 1.0 <link rel="enclosure" type="audio/mpeg" title="MP3" href="http://www.example.org/myaudiofile.mp3" length="1234" />
XMLName xml.Name `xml:"link"`
Href string `xml:"href,attr"`
Rel string `xml:"rel,attr,omitempty"`
Type string `xml:"type,attr,omitempty"`
Length string `xml:"length,attr,omitempty"`
}
type AtomFeed struct {
XMLName xml.Name `xml:"feed"`
Xmlns string `xml:"xmlns,attr"`
Title string `xml:"title"` // required
Id string `xml:"id"` // required
Updated string `xml:"updated"` // required
Category string `xml:"category,omitempty"`
Icon string `xml:"icon,omitempty"`
Logo string `xml:"logo,omitempty"`
Rights string `xml:"rights,omitempty"` // copyright used
Subtitle string `xml:"subtitle,omitempty"`
Link *AtomLink
Author *AtomAuthor `xml:"author,omitempty"`
Contributor *AtomContributor
Entries []*AtomEntry
}
type Atom struct {
*Feed
}
func newAtomEntry(i *Item) *AtomEntry {
id := i.Id
// assume the description is html
c := &AtomContent{Content: i.Description, Type: "html"}
if len(id) == 0 {
// if there's no id set, try to create one, either from data or just a uuid
if len(i.Link.Href) > 0 && (!i.Created.IsZero() || !i.Updated.IsZero()) {
dateStr := anyTimeFormat("2006-01-02", i.Updated, i.Created)
host, path := i.Link.Href, "/invalid.html"
if url, err := url.Parse(i.Link.Href); err == nil {
host, path = url.Host, url.Path
}
id = fmt.Sprintf("tag:%s,%s:%s", host, dateStr, path)
} else {
id = "urn:uuid:" + NewUUID().String()
}
}
var name, email string
if i.Author != nil {
name, email = i.Author.Name, i.Author.Email
}
x := &AtomEntry{
Title: i.Title,
Link: &AtomLink{Href: i.Link.Href, Rel: i.Link.Rel, Type: i.Link.Type},
Content: c,
Id: id,
Updated: anyTimeFormat(time.RFC3339, i.Updated, i.Created),
}
intLength, err := strconv.ParseInt(i.Link.Length, 10, 64)
if err == nil && (intLength > 0 || i.Link.Type != "") {
i.Link.Rel = "enclosure"
x.Link = &AtomLink{Href: i.Link.Href, Rel: i.Link.Rel, Type: i.Link.Type, Length: i.Link.Length}
}
if len(name) > 0 || len(email) > 0 {
x.Author = &AtomAuthor{AtomPerson: AtomPerson{Name: name, Email: email}}
}
return x
}
// create a new AtomFeed with a generic Feed struct's data
func (a *Atom) AtomFeed() *AtomFeed {
updated := anyTimeFormat(time.RFC3339, a.Updated, a.Created)
feed := &AtomFeed{
Xmlns: ns,
Title: a.Title,
Link: &AtomLink{Href: a.Link.Href, Rel: a.Link.Rel},
Subtitle: a.Description,
Id: a.Link.Href,
Updated: updated,
Rights: a.Copyright,
}
if a.Author != nil {
feed.Author = &AtomAuthor{AtomPerson: AtomPerson{Name: a.Author.Name, Email: a.Author.Email}}
}
for _, e := range a.Items {
feed.Entries = append(feed.Entries, newAtomEntry(e))
}
return feed
}
// return an XML-Ready object for an Atom object
func (a *Atom) FeedXml() interface{} {
return a.AtomFeed()
}
// return an XML-ready object for an AtomFeed object
func (a *AtomFeed) FeedXml() interface{} {
return a
}

View file

@ -1,73 +0,0 @@
/*
Syndication (feed) generator library for golang.
Installing
go get github.com/gorilla/feeds
Feeds provides a simple, generic Feed interface with a generic Item object as well as RSS, Atom and JSON Feed specific RssFeed, AtomFeed and JSONFeed objects which allow access to all of each spec's defined elements.
Examples
Create a Feed and some Items in that feed using the generic interfaces:
import (
"time"
. "github.com/gorilla/feeds
)
now = time.Now()
feed := &Feed{
Title: "jmoiron.net blog",
Link: &Link{Href: "http://jmoiron.net/blog"},
Description: "discussion about tech, footie, photos",
Author: &Author{Name: "Jason Moiron", Email: "jmoiron@jmoiron.net"},
Created: now,
Copyright: "This work is copyright © Benjamin Button",
}
feed.Items = []*Item{
&Item{
Title: "Limiting Concurrency in Go",
Link: &Link{Href: "http://jmoiron.net/blog/limiting-concurrency-in-go/"},
Description: "A discussion on controlled parallelism in golang",
Author: &Author{Name: "Jason Moiron", Email: "jmoiron@jmoiron.net"},
Created: now,
},
&Item{
Title: "Logic-less Template Redux",
Link: &Link{Href: "http://jmoiron.net/blog/logicless-template-redux/"},
Description: "More thoughts on logicless templates",
Created: now,
},
&Item{
Title: "Idiomatic Code Reuse in Go",
Link: &Link{Href: "http://jmoiron.net/blog/idiomatic-code-reuse-in-go/"},
Description: "How to use interfaces <em>effectively</em>",
Created: now,
},
}
From here, you can output Atom, RSS, or JSON Feed versions of this feed easily
atom, err := feed.ToAtom()
rss, err := feed.ToRss()
json, err := feed.ToJSON()
You can also get access to the underlying objects that feeds uses to export its XML
atomFeed := &Atom{feed}.AtomFeed()
rssFeed := &Rss{feed}.RssFeed()
jsonFeed := &JSON{feed}.JSONFeed()
From here, you can modify or add each syndication's specific fields before outputting
atomFeed.Subtitle = "plays the blues"
atom, err := ToXML(atomFeed)
rssFeed.Generator = "gorilla/feeds v1.0 (github.com/gorilla/feeds)"
rss, err := ToXML(rssFeed)
jsonFeed.NextUrl = "https://www.example.com/feed.json?page=2"
json, err := jsonFeed.ToJSON()
*/
package feeds

View file

@ -1,135 +0,0 @@
package feeds
import (
"encoding/json"
"encoding/xml"
"io"
"time"
)
type Link struct {
Href, Rel, Type, Length string
}
type Author struct {
Name, Email string
}
type Image struct {
Url, Title, Link string
Width, Height int
}
type Enclosure struct {
Url, Length, Type string
}
type Item struct {
Title string
Link *Link
Source *Link
Author *Author
Description string // used as description in rss, summary in atom
Id string // used as guid in rss, id in atom
Updated time.Time
Created time.Time
Enclosure *Enclosure
}
type Feed struct {
Title string
Link *Link
Description string
Author *Author
Updated time.Time
Created time.Time
Id string
Subtitle string
Items []*Item
Copyright string
Image *Image
}
// add a new Item to a Feed
func (f *Feed) Add(item *Item) {
f.Items = append(f.Items, item)
}
// returns the first non-zero time formatted as a string or ""
func anyTimeFormat(format string, times ...time.Time) string {
for _, t := range times {
if !t.IsZero() {
return t.Format(format)
}
}
return ""
}
// interface used by ToXML to get a object suitable for exporting XML.
type XmlFeed interface {
FeedXml() interface{}
}
// turn a feed object (either a Feed, AtomFeed, or RssFeed) into xml
// returns an error if xml marshaling fails
func ToXML(feed XmlFeed) (string, error) {
x := feed.FeedXml()
data, err := xml.MarshalIndent(x, "", " ")
if err != nil {
return "", err
}
// strip empty line from default xml header
s := xml.Header[:len(xml.Header)-1] + string(data)
return s, nil
}
// Write a feed object (either a Feed, AtomFeed, or RssFeed) as XML into
// the writer. Returns an error if XML marshaling fails.
func WriteXML(feed XmlFeed, w io.Writer) error {
x := feed.FeedXml()
// write default xml header, without the newline
if _, err := w.Write([]byte(xml.Header[:len(xml.Header)-1])); err != nil {
return err
}
e := xml.NewEncoder(w)
e.Indent("", " ")
return e.Encode(x)
}
// creates an Atom representation of this feed
func (f *Feed) ToAtom() (string, error) {
a := &Atom{f}
return ToXML(a)
}
// Writes an Atom representation of this feed to the writer.
func (f *Feed) WriteAtom(w io.Writer) error {
return WriteXML(&Atom{f}, w)
}
// creates an Rss representation of this feed
func (f *Feed) ToRss() (string, error) {
r := &Rss{f}
return ToXML(r)
}
// Writes an RSS representation of this feed to the writer.
func (f *Feed) WriteRss(w io.Writer) error {
return WriteXML(&Rss{f}, w)
}
// ToJSON creates a JSON Feed representation of this feed
func (f *Feed) ToJSON() (string, error) {
j := &JSON{f}
return j.ToJSON()
}
// WriteJSON writes an JSON representation of this feed to the writer.
func (f *Feed) WriteJSON(w io.Writer) error {
j := &JSON{f}
feed := j.JSONFeed()
e := json.NewEncoder(w)
e.SetIndent("", " ")
return e.Encode(feed)
}

View file

@ -1,177 +0,0 @@
package feeds
import (
"encoding/json"
"time"
)
const jsonFeedVersion = "https://jsonfeed.org/version/1"
// JSONAuthor represents the author of the feed or of an individual item
// in the feed
type JSONAuthor struct {
Name string `json:"name,omitempty"`
Url string `json:"url,omitempty"`
Avatar string `json:"avatar,omitempty"`
}
// JSONAttachment represents a related resource. Podcasts, for instance, would
// include an attachment thats an audio or video file.
type JSONAttachment struct {
Url string `json:"url,omitempty"`
MIMEType string `json:"mime_type,omitempty"`
Title string `json:"title,omitempty"`
Size int32 `json:"size,omitempty"`
Duration time.Duration `json:"duration_in_seconds,omitempty"`
}
// MarshalJSON implements the json.Marshaler interface.
// The Duration field is marshaled in seconds, all other fields are marshaled
// based upon the definitions in struct tags.
func (a *JSONAttachment) MarshalJSON() ([]byte, error) {
type EmbeddedJSONAttachment JSONAttachment
return json.Marshal(&struct {
Duration float64 `json:"duration_in_seconds,omitempty"`
*EmbeddedJSONAttachment
}{
EmbeddedJSONAttachment: (*EmbeddedJSONAttachment)(a),
Duration: a.Duration.Seconds(),
})
}
// UnmarshalJSON implements the json.Unmarshaler interface.
// The Duration field is expected to be in seconds, all other field types
// match the struct definition.
func (a *JSONAttachment) UnmarshalJSON(data []byte) error {
type EmbeddedJSONAttachment JSONAttachment
var raw struct {
Duration float64 `json:"duration_in_seconds,omitempty"`
*EmbeddedJSONAttachment
}
raw.EmbeddedJSONAttachment = (*EmbeddedJSONAttachment)(a)
err := json.Unmarshal(data, &raw)
if err != nil {
return err
}
if raw.Duration > 0 {
nsec := int64(raw.Duration * float64(time.Second))
raw.EmbeddedJSONAttachment.Duration = time.Duration(nsec)
}
return nil
}
// JSONItem represents a single entry/post for the feed.
type JSONItem struct {
Id string `json:"id"`
Url string `json:"url,omitempty"`
ExternalUrl string `json:"external_url,omitempty"`
Title string `json:"title,omitempty"`
ContentHTML string `json:"content_html,omitempty"`
ContentText string `json:"content_text,omitempty"`
Summary string `json:"summary,omitempty"`
Image string `json:"image,omitempty"`
BannerImage string `json:"banner_,omitempty"`
PublishedDate *time.Time `json:"date_published,omitempty"`
ModifiedDate *time.Time `json:"date_modified,omitempty"`
Author *JSONAuthor `json:"author,omitempty"`
Tags []string `json:"tags,omitempty"`
Attachments []JSONAttachment `json:"attachments,omitempty"`
}
// JSONHub describes an endpoint that can be used to subscribe to real-time
// notifications from the publisher of this feed.
type JSONHub struct {
Type string `json:"type"`
Url string `json:"url"`
}
// JSONFeed represents a syndication feed in the JSON Feed Version 1 format.
// Matching the specification found here: https://jsonfeed.org/version/1.
type JSONFeed struct {
Version string `json:"version"`
Title string `json:"title"`
HomePageUrl string `json:"home_page_url,omitempty"`
FeedUrl string `json:"feed_url,omitempty"`
Description string `json:"description,omitempty"`
UserComment string `json:"user_comment,omitempty"`
NextUrl string `json:"next_url,omitempty"`
Icon string `json:"icon,omitempty"`
Favicon string `json:"favicon,omitempty"`
Author *JSONAuthor `json:"author,omitempty"`
Expired *bool `json:"expired,omitempty"`
Hubs []*JSONItem `json:"hubs,omitempty"`
Items []*JSONItem `json:"items,omitempty"`
}
// JSON is used to convert a generic Feed to a JSONFeed.
type JSON struct {
*Feed
}
// ToJSON encodes f into a JSON string. Returns an error if marshalling fails.
func (f *JSON) ToJSON() (string, error) {
return f.JSONFeed().ToJSON()
}
// ToJSON encodes f into a JSON string. Returns an error if marshalling fails.
func (f *JSONFeed) ToJSON() (string, error) {
data, err := json.MarshalIndent(f, "", " ")
if err != nil {
return "", err
}
return string(data), nil
}
// JSONFeed creates a new JSONFeed with a generic Feed struct's data.
func (f *JSON) JSONFeed() *JSONFeed {
feed := &JSONFeed{
Version: jsonFeedVersion,
Title: f.Title,
Description: f.Description,
}
if f.Link != nil {
feed.HomePageUrl = f.Link.Href
}
if f.Author != nil {
feed.Author = &JSONAuthor{
Name: f.Author.Name,
}
}
for _, e := range f.Items {
feed.Items = append(feed.Items, newJSONItem(e))
}
return feed
}
func newJSONItem(i *Item) *JSONItem {
item := &JSONItem{
Id: i.Id,
Title: i.Title,
Summary: i.Description,
}
if i.Link != nil {
item.Url = i.Link.Href
}
if i.Source != nil {
item.ExternalUrl = i.Source.Href
}
if i.Author != nil {
item.Author = &JSONAuthor{
Name: i.Author.Name,
}
}
if !i.Created.IsZero() {
item.PublishedDate = &i.Created
}
if !i.Updated.IsZero() {
item.ModifiedDate = &i.Created
}
return item
}

View file

@ -1,153 +0,0 @@
package feeds
// rss support
// validation done according to spec here:
// http://cyber.law.harvard.edu/rss/rss.html
import (
"encoding/xml"
"fmt"
"strconv"
"time"
)
// private wrapper around the RssFeed which gives us the <rss>..</rss> xml
type rssFeedXml struct {
XMLName xml.Name `xml:"rss"`
Version string `xml:"version,attr"`
Channel *RssFeed
}
type RssImage struct {
XMLName xml.Name `xml:"image"`
Url string `xml:"url"`
Title string `xml:"title"`
Link string `xml:"link"`
Width int `xml:"width,omitempty"`
Height int `xml:"height,omitempty"`
}
type RssTextInput struct {
XMLName xml.Name `xml:"textInput"`
Title string `xml:"title"`
Description string `xml:"description"`
Name string `xml:"name"`
Link string `xml:"link"`
}
type RssFeed struct {
XMLName xml.Name `xml:"channel"`
Title string `xml:"title"` // required
Link string `xml:"link"` // required
Description string `xml:"description"` // required
Language string `xml:"language,omitempty"`
Copyright string `xml:"copyright,omitempty"`
ManagingEditor string `xml:"managingEditor,omitempty"` // Author used
WebMaster string `xml:"webMaster,omitempty"`
PubDate string `xml:"pubDate,omitempty"` // created or updated
LastBuildDate string `xml:"lastBuildDate,omitempty"` // updated used
Category string `xml:"category,omitempty"`
Generator string `xml:"generator,omitempty"`
Docs string `xml:"docs,omitempty"`
Cloud string `xml:"cloud,omitempty"`
Ttl int `xml:"ttl,omitempty"`
Rating string `xml:"rating,omitempty"`
SkipHours string `xml:"skipHours,omitempty"`
SkipDays string `xml:"skipDays,omitempty"`
Image *RssImage
TextInput *RssTextInput
Items []*RssItem
}
type RssItem struct {
XMLName xml.Name `xml:"item"`
Title string `xml:"title"` // required
Link string `xml:"link"` // required
Description string `xml:"description"` // required
Author string `xml:"author,omitempty"`
Category string `xml:"category,omitempty"`
Comments string `xml:"comments,omitempty"`
Enclosure *RssEnclosure
Guid string `xml:"guid,omitempty"` // Id used
PubDate string `xml:"pubDate,omitempty"` // created or updated
Source string `xml:"source,omitempty"`
}
type RssEnclosure struct {
//RSS 2.0 <enclosure url="http://example.com/file.mp3" length="123456789" type="audio/mpeg" />
XMLName xml.Name `xml:"enclosure"`
Url string `xml:"url,attr"`
Length string `xml:"length,attr"`
Type string `xml:"type,attr"`
}
type Rss struct {
*Feed
}
// create a new RssItem with a generic Item struct's data
func newRssItem(i *Item) *RssItem {
// enclosure := &RssEnclosure{Url: i.Enclosure.Url,Type: i.Enclosure.Type,Length: i.Enclosure.Length,}
item := &RssItem{
Title: i.Title,
Link: i.Link.Href,
Description: i.Description,
Guid: i.Id,
PubDate: anyTimeFormat(time.RFC1123Z, i.Created, i.Updated),
}
if i.Source != nil {
item.Source = i.Source.Href
}
intLength, err := strconv.ParseInt(i.Enclosure.Length, 10, 64)
if err == nil && (intLength > 0 || i.Enclosure.Type != "") {
item.Enclosure = &RssEnclosure{Url: i.Enclosure.Url, Type: i.Enclosure.Type, Length: i.Enclosure.Length}
}
if i.Author == nil {
item.Author = i.Author.Name
}
return item
}
// create a new RssFeed with a generic Feed struct's data
func (r *Rss) RssFeed() *RssFeed {
pub := anyTimeFormat(time.RFC1123Z, r.Created, r.Updated)
build := anyTimeFormat(time.RFC1123Z, r.Updated)
author := ""
if r.Author != nil {
author = r.Author.Email
if len(r.Author.Name) > 0 {
author = fmt.Sprintf("%s (%s)", r.Author.Email, r.Author.Name)
}
}
image := &RssImage{Url: r.Image.Url, Title: r.Image.Title, Link: r.Image.Link, Width: r.Image.Width, Height: r.Image.Height}
channel := &RssFeed{
Title: r.Title,
Link: r.Link.Href,
Description: r.Description,
ManagingEditor: author,
PubDate: pub,
LastBuildDate: build,
Copyright: r.Copyright,
Image: image,
}
for _, i := range r.Items {
channel.Items = append(channel.Items, newRssItem(i))
}
return channel
}
// return an XML-Ready object for an Rss object
func (r *Rss) FeedXml() interface{} {
// only generate version 2.0 feeds for now
return r.RssFeed().FeedXml()
}
// return an XML-ready object for an RssFeed object
func (r *RssFeed) FeedXml() interface{} {
return &rssFeedXml{Version: "2.0", Channel: r}
}

View file

@ -1,20 +0,0 @@
[Full iTunes list](https://help.apple.com/itc/podcasts_connect/#/itcb54353390)
[Example of ideal iTunes RSS feed](https://help.apple.com/itc/podcasts_connect/#/itcbaf351599)
```
<itunes:author>
<itunes:block>
<itunes:catergory>
<itunes:image>
<itunes:duration>
<itunes:explicit>
<itunes:isClosedCaptioned>
<itunes:order>
<itunes:complete>
<itunes:new-feed-url>
<itunes:owner>
<itunes:subtitle>
<itunes:summary>
<language>
```

View file

@ -1,27 +0,0 @@
package feeds
// relevant bits from https://github.com/abneptis/GoUUID/blob/master/uuid.go
import (
"crypto/rand"
"fmt"
)
type UUID [16]byte
// create a new uuid v4
func NewUUID() *UUID {
u := &UUID{}
_, err := rand.Read(u[:16])
if err != nil {
panic(err)
}
u[8] = (u[8] | 0x80) & 0xBf
u[6] = (u[6] | 0x40) & 0x4f
return u
}
func (u *UUID) String() string {
return fmt.Sprintf("%x-%x-%x-%x-%x", u[:4], u[4:6], u[6:8], u[8:10], u[10:])
}

View file

@ -1,22 +0,0 @@
language: go
sudo: false
matrix:
include:
- go: 1.2
- go: 1.3
- go: 1.4
- go: 1.5
- go: 1.6
- go: 1.7
- go: 1.8
- go: tip
install:
- # Skip
script:
- go get -t -v ./...
- diff -u <(echo -n) <(gofmt -d .)
- go tool vet .
- go test -v -race ./...

View file

@ -1,27 +0,0 @@
Copyright (c) 2012 Rodrigo Moraes. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

View file

@ -1,383 +0,0 @@
gorilla/mux
===
[![GoDoc](https://godoc.org/github.com/gorilla/mux?status.svg)](https://godoc.org/github.com/gorilla/mux)
[![Build Status](https://travis-ci.org/gorilla/mux.svg?branch=master)](https://travis-ci.org/gorilla/mux)
[![Sourcegraph](https://sourcegraph.com/github.com/gorilla/mux/-/badge.svg)](https://sourcegraph.com/github.com/gorilla/mux?badge)
![Gorilla Logo](http://www.gorillatoolkit.org/static/images/gorilla-icon-64.png)
http://www.gorillatoolkit.org/pkg/mux
Package `gorilla/mux` implements a request router and dispatcher for matching incoming requests to
their respective handler.
The name mux stands for "HTTP request multiplexer". Like the standard `http.ServeMux`, `mux.Router` matches incoming requests against a list of registered routes and calls a handler for the route that matches the URL or other conditions. The main features are:
* It implements the `http.Handler` interface so it is compatible with the standard `http.ServeMux`.
* Requests can be matched based on URL host, path, path prefix, schemes, header and query values, HTTP methods or using custom matchers.
* URL hosts, paths and query values can have variables with an optional regular expression.
* Registered URLs can be built, or "reversed", which helps maintaining references to resources.
* Routes can be used as subrouters: nested routes are only tested if the parent route matches. This is useful to define groups of routes that share common conditions like a host, a path prefix or other repeated attributes. As a bonus, this optimizes request matching.
---
* [Install](#install)
* [Examples](#examples)
* [Matching Routes](#matching-routes)
* [Static Files](#static-files)
* [Registered URLs](#registered-urls)
* [Walking Routes](#walking-routes)
* [Full Example](#full-example)
---
## Install
With a [correctly configured](https://golang.org/doc/install#testing) Go toolchain:
```sh
go get -u github.com/gorilla/mux
```
## Examples
Let's start registering a couple of URL paths and handlers:
```go
func main() {
r := mux.NewRouter()
r.HandleFunc("/", HomeHandler)
r.HandleFunc("/products", ProductsHandler)
r.HandleFunc("/articles", ArticlesHandler)
http.Handle("/", r)
}
```
Here we register three routes mapping URL paths to handlers. This is equivalent to how `http.HandleFunc()` works: if an incoming request URL matches one of the paths, the corresponding handler is called passing (`http.ResponseWriter`, `*http.Request`) as parameters.
Paths can have variables. They are defined using the format `{name}` or `{name:pattern}`. If a regular expression pattern is not defined, the matched variable will be anything until the next slash. For example:
```go
r := mux.NewRouter()
r.HandleFunc("/products/{key}", ProductHandler)
r.HandleFunc("/articles/{category}/", ArticlesCategoryHandler)
r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler)
```
The names are used to create a map of route variables which can be retrieved calling `mux.Vars()`:
```go
func ArticlesCategoryHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
w.WriteHeader(http.StatusOK)
fmt.Fprintf(w, "Category: %v\n", vars["category"])
}
```
And this is all you need to know about the basic usage. More advanced options are explained below.
### Matching Routes
Routes can also be restricted to a domain or subdomain. Just define a host pattern to be matched. They can also have variables:
```go
r := mux.NewRouter()
// Only matches if domain is "www.example.com".
r.Host("www.example.com")
// Matches a dynamic subdomain.
r.Host("{subdomain:[a-z]+}.domain.com")
```
There are several other matchers that can be added. To match path prefixes:
```go
r.PathPrefix("/products/")
```
...or HTTP methods:
```go
r.Methods("GET", "POST")
```
...or URL schemes:
```go
r.Schemes("https")
```
...or header values:
```go
r.Headers("X-Requested-With", "XMLHttpRequest")
```
...or query values:
```go
r.Queries("key", "value")
```
...or to use a custom matcher function:
```go
r.MatcherFunc(func(r *http.Request, rm *RouteMatch) bool {
return r.ProtoMajor == 0
})
```
...and finally, it is possible to combine several matchers in a single route:
```go
r.HandleFunc("/products", ProductsHandler).
Host("www.example.com").
Methods("GET").
Schemes("http")
```
Setting the same matching conditions again and again can be boring, so we have a way to group several routes that share the same requirements. We call it "subrouting".
For example, let's say we have several URLs that should only match when the host is `www.example.com`. Create a route for that host and get a "subrouter" from it:
```go
r := mux.NewRouter()
s := r.Host("www.example.com").Subrouter()
```
Then register routes in the subrouter:
```go
s.HandleFunc("/products/", ProductsHandler)
s.HandleFunc("/products/{key}", ProductHandler)
s.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler)
```
The three URL paths we registered above will only be tested if the domain is `www.example.com`, because the subrouter is tested first. This is not only convenient, but also optimizes request matching. You can create subrouters combining any attribute matchers accepted by a route.
Subrouters can be used to create domain or path "namespaces": you define subrouters in a central place and then parts of the app can register its paths relatively to a given subrouter.
There's one more thing about subroutes. When a subrouter has a path prefix, the inner routes use it as base for their paths:
```go
r := mux.NewRouter()
s := r.PathPrefix("/products").Subrouter()
// "/products/"
s.HandleFunc("/", ProductsHandler)
// "/products/{key}/"
s.HandleFunc("/{key}/", ProductHandler)
// "/products/{key}/details"
s.HandleFunc("/{key}/details", ProductDetailsHandler)
```
### Listing Routes
Routes on a mux can be listed using the Router.Walk method—useful for generating documentation:
```go
package main
import (
"fmt"
"net/http"
"strings"
"github.com/gorilla/mux"
)
func handler(w http.ResponseWriter, r *http.Request) {
return
}
func main() {
r := mux.NewRouter()
r.HandleFunc("/", handler)
r.HandleFunc("/products", handler).Methods("POST")
r.HandleFunc("/articles", handler).Methods("GET")
r.HandleFunc("/articles/{id}", handler).Methods("GET", "PUT")
r.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
t, err := route.GetPathTemplate()
if err != nil {
return err
}
// p will contain regular expression is compatible with regular expression in Perl, Python, and other languages.
// for instance the regular expression for path '/articles/{id}' will be '^/articles/(?P<v0>[^/]+)$'
p, err := route.GetPathRegexp()
if err != nil {
return err
}
m, err := route.GetMethods()
if err != nil {
return err
}
fmt.Println(strings.Join(m, ","), t, p)
return nil
})
http.Handle("/", r)
}
```
### Static Files
Note that the path provided to `PathPrefix()` represents a "wildcard": calling
`PathPrefix("/static/").Handler(...)` means that the handler will be passed any
request that matches "/static/*". This makes it easy to serve static files with mux:
```go
func main() {
var dir string
flag.StringVar(&dir, "dir", ".", "the directory to serve files from. Defaults to the current dir")
flag.Parse()
r := mux.NewRouter()
// This will serve files under http://localhost:8000/static/<filename>
r.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(dir))))
srv := &http.Server{
Handler: r,
Addr: "127.0.0.1:8000",
// Good practice: enforce timeouts for servers you create!
WriteTimeout: 15 * time.Second,
ReadTimeout: 15 * time.Second,
}
log.Fatal(srv.ListenAndServe())
}
```
### Registered URLs
Now let's see how to build registered URLs.
Routes can be named. All routes that define a name can have their URLs built, or "reversed". We define a name calling `Name()` on a route. For example:
```go
r := mux.NewRouter()
r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
Name("article")
```
To build a URL, get the route and call the `URL()` method, passing a sequence of key/value pairs for the route variables. For the previous route, we would do:
```go
url, err := r.Get("article").URL("category", "technology", "id", "42")
```
...and the result will be a `url.URL` with the following path:
```
"/articles/technology/42"
```
This also works for host and query value variables:
```go
r := mux.NewRouter()
r.Host("{subdomain}.domain.com").
Path("/articles/{category}/{id:[0-9]+}").
Queries("filter", "{filter}")
HandlerFunc(ArticleHandler).
Name("article")
// url.String() will be "http://news.domain.com/articles/technology/42?filter=gorilla"
url, err := r.Get("article").URL("subdomain", "news",
"category", "technology",
"id", "42",
"filter", "gorilla")
```
All variables defined in the route are required, and their values must conform to the corresponding patterns. These requirements guarantee that a generated URL will always match a registered route -- the only exception is for explicitly defined "build-only" routes which never match.
Regex support also exists for matching Headers within a route. For example, we could do:
```go
r.HeadersRegexp("Content-Type", "application/(text|json)")
```
...and the route will match both requests with a Content-Type of `application/json` as well as `application/text`
There's also a way to build only the URL host or path for a route: use the methods `URLHost()` or `URLPath()` instead. For the previous route, we would do:
```go
// "http://news.domain.com/"
host, err := r.Get("article").URLHost("subdomain", "news")
// "/articles/technology/42"
path, err := r.Get("article").URLPath("category", "technology", "id", "42")
```
And if you use subrouters, host and path defined separately can be built as well:
```go
r := mux.NewRouter()
s := r.Host("{subdomain}.domain.com").Subrouter()
s.Path("/articles/{category}/{id:[0-9]+}").
HandlerFunc(ArticleHandler).
Name("article")
// "http://news.domain.com/articles/technology/42"
url, err := r.Get("article").URL("subdomain", "news",
"category", "technology",
"id", "42")
```
### Walking Routes
The `Walk` function on `mux.Router` can be used to visit all of the routes that are registered on a router. For example,
the following prints all of the registered routes:
```go
r := mux.NewRouter()
r.HandleFunc("/", handler)
r.HandleFunc("/products", handler).Methods("POST")
r.HandleFunc("/articles", handler).Methods("GET")
r.HandleFunc("/articles/{id}", handler).Methods("GET", "PUT")
r.Walk(func(route *mux.Route, router *mux.Router, ancestors []*mux.Route) error {
t, err := route.GetPathTemplate()
if err != nil {
return err
}
// p will contain a regular expression that is compatible with regular expressions in Perl, Python, and other languages.
// For example, the regular expression for path '/articles/{id}' will be '^/articles/(?P<v0>[^/]+)$'.
p, err := route.GetPathRegexp()
if err != nil {
return err
}
m, err := route.GetMethods()
if err != nil {
return err
}
fmt.Println(strings.Join(m, ","), t, p)
return nil
})
```
## Full Example
Here's a complete, runnable example of a small `mux` based server:
```go
package main
import (
"net/http"
"log"
"github.com/gorilla/mux"
)
func YourHandler(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Gorilla!\n"))
}
func main() {
r := mux.NewRouter()
// Routes consist of a path and a handler function.
r.HandleFunc("/", YourHandler)
// Bind to a port and pass our router in
log.Fatal(http.ListenAndServe(":8000", r))
}
```
## License
BSD licensed. See the LICENSE file for details.

View file

@ -1,26 +0,0 @@
// +build !go1.7
package mux
import (
"net/http"
"github.com/gorilla/context"
)
func contextGet(r *http.Request, key interface{}) interface{} {
return context.Get(r, key)
}
func contextSet(r *http.Request, key, val interface{}) *http.Request {
if val == nil {
return r
}
context.Set(r, key, val)
return r
}
func contextClear(r *http.Request) {
context.Clear(r)
}

View file

@ -1,24 +0,0 @@
// +build go1.7
package mux
import (
"context"
"net/http"
)
func contextGet(r *http.Request, key interface{}) interface{} {
return r.Context().Value(key)
}
func contextSet(r *http.Request, key, val interface{}) *http.Request {
if val == nil {
return r
}
return r.WithContext(context.WithValue(r.Context(), key, val))
}
func contextClear(r *http.Request) {
return
}

242
vendor/github.com/gorilla/mux/doc.go generated vendored
View file

@ -1,242 +0,0 @@
// Copyright 2012 The Gorilla Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
/*
Package mux implements a request router and dispatcher.
The name mux stands for "HTTP request multiplexer". Like the standard
http.ServeMux, mux.Router matches incoming requests against a list of
registered routes and calls a handler for the route that matches the URL
or other conditions. The main features are:
* Requests can be matched based on URL host, path, path prefix, schemes,
header and query values, HTTP methods or using custom matchers.
* URL hosts, paths and query values can have variables with an optional
regular expression.
* Registered URLs can be built, or "reversed", which helps maintaining
references to resources.
* Routes can be used as subrouters: nested routes are only tested if the
parent route matches. This is useful to define groups of routes that
share common conditions like a host, a path prefix or other repeated
attributes. As a bonus, this optimizes request matching.
* It implements the http.Handler interface so it is compatible with the
standard http.ServeMux.
Let's start registering a couple of URL paths and handlers:
func main() {
r := mux.NewRouter()
r.HandleFunc("/", HomeHandler)
r.HandleFunc("/products", ProductsHandler)
r.HandleFunc("/articles", ArticlesHandler)
http.Handle("/", r)
}
Here we register three routes mapping URL paths to handlers. This is
equivalent to how http.HandleFunc() works: if an incoming request URL matches
one of the paths, the corresponding handler is called passing
(http.ResponseWriter, *http.Request) as parameters.
Paths can have variables. They are defined using the format {name} or
{name:pattern}. If a regular expression pattern is not defined, the matched
variable will be anything until the next slash. For example:
r := mux.NewRouter()
r.HandleFunc("/products/{key}", ProductHandler)
r.HandleFunc("/articles/{category}/", ArticlesCategoryHandler)
r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler)
Groups can be used inside patterns, as long as they are non-capturing (?:re). For example:
r.HandleFunc("/articles/{category}/{sort:(?:asc|desc|new)}", ArticlesCategoryHandler)
The names are used to create a map of route variables which can be retrieved
calling mux.Vars():
vars := mux.Vars(request)
category := vars["category"]
Note that if any capturing groups are present, mux will panic() during parsing. To prevent
this, convert any capturing groups to non-capturing, e.g. change "/{sort:(asc|desc)}" to
"/{sort:(?:asc|desc)}". This is a change from prior versions which behaved unpredictably
when capturing groups were present.
And this is all you need to know about the basic usage. More advanced options
are explained below.
Routes can also be restricted to a domain or subdomain. Just define a host
pattern to be matched. They can also have variables:
r := mux.NewRouter()
// Only matches if domain is "www.example.com".
r.Host("www.example.com")
// Matches a dynamic subdomain.
r.Host("{subdomain:[a-z]+}.domain.com")
There are several other matchers that can be added. To match path prefixes:
r.PathPrefix("/products/")
...or HTTP methods:
r.Methods("GET", "POST")
...or URL schemes:
r.Schemes("https")
...or header values:
r.Headers("X-Requested-With", "XMLHttpRequest")
...or query values:
r.Queries("key", "value")
...or to use a custom matcher function:
r.MatcherFunc(func(r *http.Request, rm *RouteMatch) bool {
return r.ProtoMajor == 0
})
...and finally, it is possible to combine several matchers in a single route:
r.HandleFunc("/products", ProductsHandler).
Host("www.example.com").
Methods("GET").
Schemes("http")
Setting the same matching conditions again and again can be boring, so we have
a way to group several routes that share the same requirements.
We call it "subrouting".
For example, let's say we have several URLs that should only match when the
host is "www.example.com". Create a route for that host and get a "subrouter"
from it:
r := mux.NewRouter()
s := r.Host("www.example.com").Subrouter()
Then register routes in the subrouter:
s.HandleFunc("/products/", ProductsHandler)
s.HandleFunc("/products/{key}", ProductHandler)
s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler)
The three URL paths we registered above will only be tested if the domain is
"www.example.com", because the subrouter is tested first. This is not
only convenient, but also optimizes request matching. You can create
subrouters combining any attribute matchers accepted by a route.
Subrouters can be used to create domain or path "namespaces": you define
subrouters in a central place and then parts of the app can register its
paths relatively to a given subrouter.
There's one more thing about subroutes. When a subrouter has a path prefix,
the inner routes use it as base for their paths:
r := mux.NewRouter()
s := r.PathPrefix("/products").Subrouter()
// "/products/"
s.HandleFunc("/", ProductsHandler)
// "/products/{key}/"
s.HandleFunc("/{key}/", ProductHandler)
// "/products/{key}/details"
s.HandleFunc("/{key}/details", ProductDetailsHandler)
Note that the path provided to PathPrefix() represents a "wildcard": calling
PathPrefix("/static/").Handler(...) means that the handler will be passed any
request that matches "/static/*". This makes it easy to serve static files with mux:
func main() {
var dir string
flag.StringVar(&dir, "dir", ".", "the directory to serve files from. Defaults to the current dir")
flag.Parse()
r := mux.NewRouter()
// This will serve files under http://localhost:8000/static/<filename>
r.PathPrefix("/static/").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(dir))))
srv := &http.Server{
Handler: r,
Addr: "127.0.0.1:8000",
// Good practice: enforce timeouts for servers you create!
WriteTimeout: 15 * time.Second,
ReadTimeout: 15 * time.Second,
}
log.Fatal(srv.ListenAndServe())
}
Now let's see how to build registered URLs.
Routes can be named. All routes that define a name can have their URLs built,
or "reversed". We define a name calling Name() on a route. For example:
r := mux.NewRouter()
r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
Name("article")
To build a URL, get the route and call the URL() method, passing a sequence of
key/value pairs for the route variables. For the previous route, we would do:
url, err := r.Get("article").URL("category", "technology", "id", "42")
...and the result will be a url.URL with the following path:
"/articles/technology/42"
This also works for host and query value variables:
r := mux.NewRouter()
r.Host("{subdomain}.domain.com").
Path("/articles/{category}/{id:[0-9]+}").
Queries("filter", "{filter}").
HandlerFunc(ArticleHandler).
Name("article")
// url.String() will be "http://news.domain.com/articles/technology/42?filter=gorilla"
url, err := r.Get("article").URL("subdomain", "news",
"category", "technology",
"id", "42",
"filter", "gorilla")
All variables defined in the route are required, and their values must
conform to the corresponding patterns. These requirements guarantee that a
generated URL will always match a registered route -- the only exception is
for explicitly defined "build-only" routes which never match.
Regex support also exists for matching Headers within a route. For example, we could do:
r.HeadersRegexp("Content-Type", "application/(text|json)")
...and the route will match both requests with a Content-Type of `application/json` as well as
`application/text`
There's also a way to build only the URL host or path for a route:
use the methods URLHost() or URLPath() instead. For the previous route,
we would do:
// "http://news.domain.com/"
host, err := r.Get("article").URLHost("subdomain", "news")
// "/articles/technology/42"
path, err := r.Get("article").URLPath("category", "technology", "id", "42")
And if you use subrouters, host and path defined separately can be built
as well:
r := mux.NewRouter()
s := r.Host("{subdomain}.domain.com").Subrouter()
s.Path("/articles/{category}/{id:[0-9]+}").
HandlerFunc(ArticleHandler).
Name("article")
// "http://news.domain.com/articles/technology/42"
url, err := r.Get("article").URL("subdomain", "news",
"category", "technology",
"id", "42")
*/
package mux

540
vendor/github.com/gorilla/mux/mux.go generated vendored
View file

@ -1,540 +0,0 @@
// Copyright 2012 The Gorilla Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package mux
import (
"errors"
"fmt"
"net/http"
"path"
"regexp"
"strings"
)
// NewRouter returns a new router instance.
func NewRouter() *Router {
return &Router{namedRoutes: make(map[string]*Route), KeepContext: false}
}
// Router registers routes to be matched and dispatches a handler.
//
// It implements the http.Handler interface, so it can be registered to serve
// requests:
//
// var router = mux.NewRouter()
//
// func main() {
// http.Handle("/", router)
// }
//
// Or, for Google App Engine, register it in a init() function:
//
// func init() {
// http.Handle("/", router)
// }
//
// This will send all incoming requests to the router.
type Router struct {
// Configurable Handler to be used when no route matches.
NotFoundHandler http.Handler
// Parent route, if this is a subrouter.
parent parentRoute
// Routes to be matched, in order.
routes []*Route
// Routes by name for URL building.
namedRoutes map[string]*Route
// See Router.StrictSlash(). This defines the flag for new routes.
strictSlash bool
// See Router.SkipClean(). This defines the flag for new routes.
skipClean bool
// If true, do not clear the request context after handling the request.
// This has no effect when go1.7+ is used, since the context is stored
// on the request itself.
KeepContext bool
// see Router.UseEncodedPath(). This defines a flag for all routes.
useEncodedPath bool
}
// Match matches registered routes against the request.
func (r *Router) Match(req *http.Request, match *RouteMatch) bool {
for _, route := range r.routes {
if route.Match(req, match) {
return true
}
}
// Closest match for a router (includes sub-routers)
if r.NotFoundHandler != nil {
match.Handler = r.NotFoundHandler
return true
}
return false
}
// ServeHTTP dispatches the handler registered in the matched route.
//
// When there is a match, the route variables can be retrieved calling
// mux.Vars(request).
func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
if !r.skipClean {
path := req.URL.Path
if r.useEncodedPath {
path = getPath(req)
}
// Clean path to canonical form and redirect.
if p := cleanPath(path); p != path {
// Added 3 lines (Philip Schlump) - It was dropping the query string and #whatever from query.
// This matches with fix in go 1.2 r.c. 4 for same problem. Go Issue:
// http://code.google.com/p/go/issues/detail?id=5252
url := *req.URL
url.Path = p
p = url.String()
w.Header().Set("Location", p)
w.WriteHeader(http.StatusMovedPermanently)
return
}
}
var match RouteMatch
var handler http.Handler
if r.Match(req, &match) {
handler = match.Handler
req = setVars(req, match.Vars)
req = setCurrentRoute(req, match.Route)
}
if handler == nil {
handler = http.NotFoundHandler()
}
if !r.KeepContext {
defer contextClear(req)
}
handler.ServeHTTP(w, req)
}
// Get returns a route registered with the given name.
func (r *Router) Get(name string) *Route {
return r.getNamedRoutes()[name]
}
// GetRoute returns a route registered with the given name. This method
// was renamed to Get() and remains here for backwards compatibility.
func (r *Router) GetRoute(name string) *Route {
return r.getNamedRoutes()[name]
}
// StrictSlash defines the trailing slash behavior for new routes. The initial
// value is false.
//
// When true, if the route path is "/path/", accessing "/path" will redirect
// to the former and vice versa. In other words, your application will always
// see the path as specified in the route.
//
// When false, if the route path is "/path", accessing "/path/" will not match
// this route and vice versa.
//
// Special case: when a route sets a path prefix using the PathPrefix() method,
// strict slash is ignored for that route because the redirect behavior can't
// be determined from a prefix alone. However, any subrouters created from that
// route inherit the original StrictSlash setting.
func (r *Router) StrictSlash(value bool) *Router {
r.strictSlash = value
return r
}
// SkipClean defines the path cleaning behaviour for new routes. The initial
// value is false. Users should be careful about which routes are not cleaned
//
// When true, if the route path is "/path//to", it will remain with the double
// slash. This is helpful if you have a route like: /fetch/http://xkcd.com/534/
//
// When false, the path will be cleaned, so /fetch/http://xkcd.com/534/ will
// become /fetch/http/xkcd.com/534
func (r *Router) SkipClean(value bool) *Router {
r.skipClean = value
return r
}
// UseEncodedPath tells the router to match the encoded original path
// to the routes.
// For eg. "/path/foo%2Fbar/to" will match the path "/path/{var}/to".
// This behavior has the drawback of needing to match routes against
// r.RequestURI instead of r.URL.Path. Any modifications (such as http.StripPrefix)
// to r.URL.Path will not affect routing when this flag is on and thus may
// induce unintended behavior.
//
// If not called, the router will match the unencoded path to the routes.
// For eg. "/path/foo%2Fbar/to" will match the path "/path/foo/bar/to"
func (r *Router) UseEncodedPath() *Router {
r.useEncodedPath = true
return r
}
// ----------------------------------------------------------------------------
// parentRoute
// ----------------------------------------------------------------------------
// getNamedRoutes returns the map where named routes are registered.
func (r *Router) getNamedRoutes() map[string]*Route {
if r.namedRoutes == nil {
if r.parent != nil {
r.namedRoutes = r.parent.getNamedRoutes()
} else {
r.namedRoutes = make(map[string]*Route)
}
}
return r.namedRoutes
}
// getRegexpGroup returns regexp definitions from the parent route, if any.
func (r *Router) getRegexpGroup() *routeRegexpGroup {
if r.parent != nil {
return r.parent.getRegexpGroup()
}
return nil
}
func (r *Router) buildVars(m map[string]string) map[string]string {
if r.parent != nil {
m = r.parent.buildVars(m)
}
return m
}
// ----------------------------------------------------------------------------
// Route factories
// ----------------------------------------------------------------------------
// NewRoute registers an empty route.
func (r *Router) NewRoute() *Route {
route := &Route{parent: r, strictSlash: r.strictSlash, skipClean: r.skipClean, useEncodedPath: r.useEncodedPath}
r.routes = append(r.routes, route)
return route
}
// Handle registers a new route with a matcher for the URL path.
// See Route.Path() and Route.Handler().
func (r *Router) Handle(path string, handler http.Handler) *Route {
return r.NewRoute().Path(path).Handler(handler)
}
// HandleFunc registers a new route with a matcher for the URL path.
// See Route.Path() and Route.HandlerFunc().
func (r *Router) HandleFunc(path string, f func(http.ResponseWriter,
*http.Request)) *Route {
return r.NewRoute().Path(path).HandlerFunc(f)
}
// Headers registers a new route with a matcher for request header values.
// See Route.Headers().
func (r *Router) Headers(pairs ...string) *Route {
return r.NewRoute().Headers(pairs...)
}
// Host registers a new route with a matcher for the URL host.
// See Route.Host().
func (r *Router) Host(tpl string) *Route {
return r.NewRoute().Host(tpl)
}
// MatcherFunc registers a new route with a custom matcher function.
// See Route.MatcherFunc().
func (r *Router) MatcherFunc(f MatcherFunc) *Route {
return r.NewRoute().MatcherFunc(f)
}
// Methods registers a new route with a matcher for HTTP methods.
// See Route.Methods().
func (r *Router) Methods(methods ...string) *Route {
return r.NewRoute().Methods(methods...)
}
// Path registers a new route with a matcher for the URL path.
// See Route.Path().
func (r *Router) Path(tpl string) *Route {
return r.NewRoute().Path(tpl)
}
// PathPrefix registers a new route with a matcher for the URL path prefix.
// See Route.PathPrefix().
func (r *Router) PathPrefix(tpl string) *Route {
return r.NewRoute().PathPrefix(tpl)
}
// Queries registers a new route with a matcher for URL query values.
// See Route.Queries().
func (r *Router) Queries(pairs ...string) *Route {
return r.NewRoute().Queries(pairs...)
}
// Schemes registers a new route with a matcher for URL schemes.
// See Route.Schemes().
func (r *Router) Schemes(schemes ...string) *Route {
return r.NewRoute().Schemes(schemes...)
}
// BuildVarsFunc registers a new route with a custom function for modifying
// route variables before building a URL.
func (r *Router) BuildVarsFunc(f BuildVarsFunc) *Route {
return r.NewRoute().BuildVarsFunc(f)
}
// Walk walks the router and all its sub-routers, calling walkFn for each route
// in the tree. The routes are walked in the order they were added. Sub-routers
// are explored depth-first.
func (r *Router) Walk(walkFn WalkFunc) error {
return r.walk(walkFn, []*Route{})
}
// SkipRouter is used as a return value from WalkFuncs to indicate that the
// router that walk is about to descend down to should be skipped.
var SkipRouter = errors.New("skip this router")
// WalkFunc is the type of the function called for each route visited by Walk.
// At every invocation, it is given the current route, and the current router,
// and a list of ancestor routes that lead to the current route.
type WalkFunc func(route *Route, router *Router, ancestors []*Route) error
func (r *Router) walk(walkFn WalkFunc, ancestors []*Route) error {
for _, t := range r.routes {
err := walkFn(t, r, ancestors)
if err == SkipRouter {
continue
}
if err != nil {
return err
}
for _, sr := range t.matchers {
if h, ok := sr.(*Router); ok {
ancestors = append(ancestors, t)
err := h.walk(walkFn, ancestors)
if err != nil {
return err
}
ancestors = ancestors[:len(ancestors)-1]
}
}
if h, ok := t.handler.(*Router); ok {
ancestors = append(ancestors, t)
err := h.walk(walkFn, ancestors)
if err != nil {
return err
}
ancestors = ancestors[:len(ancestors)-1]
}
}
return nil
}
// ----------------------------------------------------------------------------
// Context
// ----------------------------------------------------------------------------
// RouteMatch stores information about a matched route.
type RouteMatch struct {
Route *Route
Handler http.Handler
Vars map[string]string
}
type contextKey int
const (
varsKey contextKey = iota
routeKey
)
// Vars returns the route variables for the current request, if any.
func Vars(r *http.Request) map[string]string {
if rv := contextGet(r, varsKey); rv != nil {
return rv.(map[string]string)
}
return nil
}
// CurrentRoute returns the matched route for the current request, if any.
// This only works when called inside the handler of the matched route
// because the matched route is stored in the request context which is cleared
// after the handler returns, unless the KeepContext option is set on the
// Router.
func CurrentRoute(r *http.Request) *Route {
if rv := contextGet(r, routeKey); rv != nil {
return rv.(*Route)
}
return nil
}
func setVars(r *http.Request, val interface{}) *http.Request {
return contextSet(r, varsKey, val)
}
func setCurrentRoute(r *http.Request, val interface{}) *http.Request {
return contextSet(r, routeKey, val)
}
// ----------------------------------------------------------------------------
// Helpers
// ----------------------------------------------------------------------------
// getPath returns the escaped path if possible; doing what URL.EscapedPath()
// which was added in go1.5 does
func getPath(req *http.Request) string {
if req.RequestURI != "" {
// Extract the path from RequestURI (which is escaped unlike URL.Path)
// as detailed here as detailed in https://golang.org/pkg/net/url/#URL
// for < 1.5 server side workaround
// http://localhost/path/here?v=1 -> /path/here
path := req.RequestURI
path = strings.TrimPrefix(path, req.URL.Scheme+`://`)
path = strings.TrimPrefix(path, req.URL.Host)
if i := strings.LastIndex(path, "?"); i > -1 {
path = path[:i]
}
if i := strings.LastIndex(path, "#"); i > -1 {
path = path[:i]
}
return path
}
return req.URL.Path
}
// cleanPath returns the canonical path for p, eliminating . and .. elements.
// Borrowed from the net/http package.
func cleanPath(p string) string {
if p == "" {
return "/"
}
if p[0] != '/' {
p = "/" + p
}
np := path.Clean(p)
// path.Clean removes trailing slash except for root;
// put the trailing slash back if necessary.
if p[len(p)-1] == '/' && np != "/" {
np += "/"
}
return np
}
// uniqueVars returns an error if two slices contain duplicated strings.
func uniqueVars(s1, s2 []string) error {
for _, v1 := range s1 {
for _, v2 := range s2 {
if v1 == v2 {
return fmt.Errorf("mux: duplicated route variable %q", v2)
}
}
}
return nil
}
// checkPairs returns the count of strings passed in, and an error if
// the count is not an even number.
func checkPairs(pairs ...string) (int, error) {
length := len(pairs)
if length%2 != 0 {
return length, fmt.Errorf(
"mux: number of parameters must be multiple of 2, got %v", pairs)
}
return length, nil
}
// mapFromPairsToString converts variadic string parameters to a
// string to string map.
func mapFromPairsToString(pairs ...string) (map[string]string, error) {
length, err := checkPairs(pairs...)
if err != nil {
return nil, err
}
m := make(map[string]string, length/2)
for i := 0; i < length; i += 2 {
m[pairs[i]] = pairs[i+1]
}
return m, nil
}
// mapFromPairsToRegex converts variadic string paramers to a
// string to regex map.
func mapFromPairsToRegex(pairs ...string) (map[string]*regexp.Regexp, error) {
length, err := checkPairs(pairs...)
if err != nil {
return nil, err
}
m := make(map[string]*regexp.Regexp, length/2)
for i := 0; i < length; i += 2 {
regex, err := regexp.Compile(pairs[i+1])
if err != nil {
return nil, err
}
m[pairs[i]] = regex
}
return m, nil
}
// matchInArray returns true if the given string value is in the array.
func matchInArray(arr []string, value string) bool {
for _, v := range arr {
if v == value {
return true
}
}
return false
}
// matchMapWithString returns true if the given key/value pairs exist in a given map.
func matchMapWithString(toCheck map[string]string, toMatch map[string][]string, canonicalKey bool) bool {
for k, v := range toCheck {
// Check if key exists.
if canonicalKey {
k = http.CanonicalHeaderKey(k)
}
if values := toMatch[k]; values == nil {
return false
} else if v != "" {
// If value was defined as an empty string we only check that the
// key exists. Otherwise we also check for equality.
valueExists := false
for _, value := range values {
if v == value {
valueExists = true
break
}
}
if !valueExists {
return false
}
}
}
return true
}
// matchMapWithRegex returns true if the given key/value pairs exist in a given map compiled against
// the given regex
func matchMapWithRegex(toCheck map[string]*regexp.Regexp, toMatch map[string][]string, canonicalKey bool) bool {
for k, v := range toCheck {
// Check if key exists.
if canonicalKey {
k = http.CanonicalHeaderKey(k)
}
if values := toMatch[k]; values == nil {
return false
} else if v != nil {
// If value was defined as an empty string we only check that the
// key exists. Otherwise we also check for equality.
valueExists := false
for _, value := range values {
if v.MatchString(value) {
valueExists = true
break
}
}
if !valueExists {
return false
}
}
}
return true
}

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@ -1,326 +0,0 @@
// Copyright 2012 The Gorilla Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package mux
import (
"bytes"
"fmt"
"net/http"
"net/url"
"regexp"
"strconv"
"strings"
)
// newRouteRegexp parses a route template and returns a routeRegexp,
// used to match a host, a path or a query string.
//
// It will extract named variables, assemble a regexp to be matched, create
// a "reverse" template to build URLs and compile regexps to validate variable
// values used in URL building.
//
// Previously we accepted only Python-like identifiers for variable
// names ([a-zA-Z_][a-zA-Z0-9_]*), but currently the only restriction is that
// name and pattern can't be empty, and names can't contain a colon.
func newRouteRegexp(tpl string, matchHost, matchPrefix, matchQuery, strictSlash, useEncodedPath bool) (*routeRegexp, error) {
// Check if it is well-formed.
idxs, errBraces := braceIndices(tpl)
if errBraces != nil {
return nil, errBraces
}
// Backup the original.
template := tpl
// Now let's parse it.
defaultPattern := "[^/]+"
if matchQuery {
defaultPattern = ".*"
} else if matchHost {
defaultPattern = "[^.]+"
matchPrefix = false
}
// Only match strict slash if not matching
if matchPrefix || matchHost || matchQuery {
strictSlash = false
}
// Set a flag for strictSlash.
endSlash := false
if strictSlash && strings.HasSuffix(tpl, "/") {
tpl = tpl[:len(tpl)-1]
endSlash = true
}
varsN := make([]string, len(idxs)/2)
varsR := make([]*regexp.Regexp, len(idxs)/2)
pattern := bytes.NewBufferString("")
pattern.WriteByte('^')
reverse := bytes.NewBufferString("")
var end int
var err error
for i := 0; i < len(idxs); i += 2 {
// Set all values we are interested in.
raw := tpl[end:idxs[i]]
end = idxs[i+1]
parts := strings.SplitN(tpl[idxs[i]+1:end-1], ":", 2)
name := parts[0]
patt := defaultPattern
if len(parts) == 2 {
patt = parts[1]
}
// Name or pattern can't be empty.
if name == "" || patt == "" {
return nil, fmt.Errorf("mux: missing name or pattern in %q",
tpl[idxs[i]:end])
}
// Build the regexp pattern.
fmt.Fprintf(pattern, "%s(?P<%s>%s)", regexp.QuoteMeta(raw), varGroupName(i/2), patt)
// Build the reverse template.
fmt.Fprintf(reverse, "%s%%s", raw)
// Append variable name and compiled pattern.
varsN[i/2] = name
varsR[i/2], err = regexp.Compile(fmt.Sprintf("^%s$", patt))
if err != nil {
return nil, err
}
}
// Add the remaining.
raw := tpl[end:]
pattern.WriteString(regexp.QuoteMeta(raw))
if strictSlash {
pattern.WriteString("[/]?")
}
if matchQuery {
// Add the default pattern if the query value is empty
if queryVal := strings.SplitN(template, "=", 2)[1]; queryVal == "" {
pattern.WriteString(defaultPattern)
}
}
if !matchPrefix {
pattern.WriteByte('$')
}
reverse.WriteString(raw)
if endSlash {
reverse.WriteByte('/')
}
// Compile full regexp.
reg, errCompile := regexp.Compile(pattern.String())
if errCompile != nil {
return nil, errCompile
}
// Check for capturing groups which used to work in older versions
if reg.NumSubexp() != len(idxs)/2 {
panic(fmt.Sprintf("route %s contains capture groups in its regexp. ", template) +
"Only non-capturing groups are accepted: e.g. (?:pattern) instead of (pattern)")
}
// Done!
return &routeRegexp{
template: template,
matchHost: matchHost,
matchQuery: matchQuery,
strictSlash: strictSlash,
useEncodedPath: useEncodedPath,
regexp: reg,
reverse: reverse.String(),
varsN: varsN,
varsR: varsR,
}, nil
}
// routeRegexp stores a regexp to match a host or path and information to
// collect and validate route variables.
type routeRegexp struct {
// The unmodified template.
template string
// True for host match, false for path or query string match.
matchHost bool
// True for query string match, false for path and host match.
matchQuery bool
// The strictSlash value defined on the route, but disabled if PathPrefix was used.
strictSlash bool
// Determines whether to use encoded path from getPath function or unencoded
// req.URL.Path for path matching
useEncodedPath bool
// Expanded regexp.
regexp *regexp.Regexp
// Reverse template.
reverse string
// Variable names.
varsN []string
// Variable regexps (validators).
varsR []*regexp.Regexp
}
// Match matches the regexp against the URL host or path.
func (r *routeRegexp) Match(req *http.Request, match *RouteMatch) bool {
if !r.matchHost {
if r.matchQuery {
return r.matchQueryString(req)
}
path := req.URL.Path
if r.useEncodedPath {
path = getPath(req)
}
return r.regexp.MatchString(path)
}
return r.regexp.MatchString(getHost(req))
}
// url builds a URL part using the given values.
func (r *routeRegexp) url(values map[string]string) (string, error) {
urlValues := make([]interface{}, len(r.varsN))
for k, v := range r.varsN {
value, ok := values[v]
if !ok {
return "", fmt.Errorf("mux: missing route variable %q", v)
}
if r.matchQuery {
value = url.QueryEscape(value)
}
urlValues[k] = value
}
rv := fmt.Sprintf(r.reverse, urlValues...)
if !r.regexp.MatchString(rv) {
// The URL is checked against the full regexp, instead of checking
// individual variables. This is faster but to provide a good error
// message, we check individual regexps if the URL doesn't match.
for k, v := range r.varsN {
if !r.varsR[k].MatchString(values[v]) {
return "", fmt.Errorf(
"mux: variable %q doesn't match, expected %q", values[v],
r.varsR[k].String())
}
}
}
return rv, nil
}
// getURLQuery returns a single query parameter from a request URL.
// For a URL with foo=bar&baz=ding, we return only the relevant key
// value pair for the routeRegexp.
func (r *routeRegexp) getURLQuery(req *http.Request) string {
if !r.matchQuery {
return ""
}
templateKey := strings.SplitN(r.template, "=", 2)[0]
for key, vals := range req.URL.Query() {
if key == templateKey && len(vals) > 0 {
return key + "=" + vals[0]
}
}
return ""
}
func (r *routeRegexp) matchQueryString(req *http.Request) bool {
return r.regexp.MatchString(r.getURLQuery(req))
}
// braceIndices returns the first level curly brace indices from a string.
// It returns an error in case of unbalanced braces.
func braceIndices(s string) ([]int, error) {
var level, idx int
var idxs []int
for i := 0; i < len(s); i++ {
switch s[i] {
case '{':
if level++; level == 1 {
idx = i
}
case '}':
if level--; level == 0 {
idxs = append(idxs, idx, i+1)
} else if level < 0 {
return nil, fmt.Errorf("mux: unbalanced braces in %q", s)
}
}
}
if level != 0 {
return nil, fmt.Errorf("mux: unbalanced braces in %q", s)
}
return idxs, nil
}
// varGroupName builds a capturing group name for the indexed variable.
func varGroupName(idx int) string {
return "v" + strconv.Itoa(idx)
}
// ----------------------------------------------------------------------------
// routeRegexpGroup
// ----------------------------------------------------------------------------
// routeRegexpGroup groups the route matchers that carry variables.
type routeRegexpGroup struct {
host *routeRegexp
path *routeRegexp
queries []*routeRegexp
}
// setMatch extracts the variables from the URL once a route matches.
func (v *routeRegexpGroup) setMatch(req *http.Request, m *RouteMatch, r *Route) {
// Store host variables.
if v.host != nil {
host := getHost(req)
matches := v.host.regexp.FindStringSubmatchIndex(host)
if len(matches) > 0 {
extractVars(host, matches, v.host.varsN, m.Vars)
}
}
path := req.URL.Path
if r.useEncodedPath {
path = getPath(req)
}
// Store path variables.
if v.path != nil {
matches := v.path.regexp.FindStringSubmatchIndex(path)
if len(matches) > 0 {
extractVars(path, matches, v.path.varsN, m.Vars)
// Check if we should redirect.
if v.path.strictSlash {
p1 := strings.HasSuffix(path, "/")
p2 := strings.HasSuffix(v.path.template, "/")
if p1 != p2 {
u, _ := url.Parse(req.URL.String())
if p1 {
u.Path = u.Path[:len(u.Path)-1]
} else {
u.Path += "/"
}
m.Handler = http.RedirectHandler(u.String(), 301)
}
}
}
}
// Store query string variables.
for _, q := range v.queries {
queryURL := q.getURLQuery(req)
matches := q.regexp.FindStringSubmatchIndex(queryURL)
if len(matches) > 0 {
extractVars(queryURL, matches, q.varsN, m.Vars)
}
}
}
// getHost tries its best to return the request host.
func getHost(r *http.Request) string {
if r.URL.IsAbs() {
return r.URL.Host
}
host := r.Host
// Slice off any port information.
if i := strings.Index(host, ":"); i != -1 {
host = host[:i]
}
return host
}
func extractVars(input string, matches []int, names []string, output map[string]string) {
for i, name := range names {
output[name] = input[matches[2*i+2]:matches[2*i+3]]
}
}

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@ -1,686 +0,0 @@
// Copyright 2012 The Gorilla Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package mux
import (
"errors"
"fmt"
"net/http"
"net/url"
"regexp"
"strings"
)
// Route stores information to match a request and build URLs.
type Route struct {
// Parent where the route was registered (a Router).
parent parentRoute
// Request handler for the route.
handler http.Handler
// List of matchers.
matchers []matcher
// Manager for the variables from host and path.
regexp *routeRegexpGroup
// If true, when the path pattern is "/path/", accessing "/path" will
// redirect to the former and vice versa.
strictSlash bool
// If true, when the path pattern is "/path//to", accessing "/path//to"
// will not redirect
skipClean bool
// If true, "/path/foo%2Fbar/to" will match the path "/path/{var}/to"
useEncodedPath bool
// The scheme used when building URLs.
buildScheme string
// If true, this route never matches: it is only used to build URLs.
buildOnly bool
// The name used to build URLs.
name string
// Error resulted from building a route.
err error
buildVarsFunc BuildVarsFunc
}
func (r *Route) SkipClean() bool {
return r.skipClean
}
// Match matches the route against the request.
func (r *Route) Match(req *http.Request, match *RouteMatch) bool {
if r.buildOnly || r.err != nil {
return false
}
// Match everything.
for _, m := range r.matchers {
if matched := m.Match(req, match); !matched {
return false
}
}
// Yay, we have a match. Let's collect some info about it.
if match.Route == nil {
match.Route = r
}
if match.Handler == nil {
match.Handler = r.handler
}
if match.Vars == nil {
match.Vars = make(map[string]string)
}
// Set variables.
if r.regexp != nil {
r.regexp.setMatch(req, match, r)
}
return true
}
// ----------------------------------------------------------------------------
// Route attributes
// ----------------------------------------------------------------------------
// GetError returns an error resulted from building the route, if any.
func (r *Route) GetError() error {
return r.err
}
// BuildOnly sets the route to never match: it is only used to build URLs.
func (r *Route) BuildOnly() *Route {
r.buildOnly = true
return r
}
// Handler --------------------------------------------------------------------
// Handler sets a handler for the route.
func (r *Route) Handler(handler http.Handler) *Route {
if r.err == nil {
r.handler = handler
}
return r
}
// HandlerFunc sets a handler function for the route.
func (r *Route) HandlerFunc(f func(http.ResponseWriter, *http.Request)) *Route {
return r.Handler(http.HandlerFunc(f))
}
// GetHandler returns the handler for the route, if any.
func (r *Route) GetHandler() http.Handler {
return r.handler
}
// Name -----------------------------------------------------------------------
// Name sets the name for the route, used to build URLs.
// If the name was registered already it will be overwritten.
func (r *Route) Name(name string) *Route {
if r.name != "" {
r.err = fmt.Errorf("mux: route already has name %q, can't set %q",
r.name, name)
}
if r.err == nil {
r.name = name
r.getNamedRoutes()[name] = r
}
return r
}
// GetName returns the name for the route, if any.
func (r *Route) GetName() string {
return r.name
}
// ----------------------------------------------------------------------------
// Matchers
// ----------------------------------------------------------------------------
// matcher types try to match a request.
type matcher interface {
Match(*http.Request, *RouteMatch) bool
}
// addMatcher adds a matcher to the route.
func (r *Route) addMatcher(m matcher) *Route {
if r.err == nil {
r.matchers = append(r.matchers, m)
}
return r
}
// addRegexpMatcher adds a host or path matcher and builder to a route.
func (r *Route) addRegexpMatcher(tpl string, matchHost, matchPrefix, matchQuery bool) error {
if r.err != nil {
return r.err
}
r.regexp = r.getRegexpGroup()
if !matchHost && !matchQuery {
if len(tpl) > 0 && tpl[0] != '/' {
return fmt.Errorf("mux: path must start with a slash, got %q", tpl)
}
if r.regexp.path != nil {
tpl = strings.TrimRight(r.regexp.path.template, "/") + tpl
}
}
rr, err := newRouteRegexp(tpl, matchHost, matchPrefix, matchQuery, r.strictSlash, r.useEncodedPath)
if err != nil {
return err
}
for _, q := range r.regexp.queries {
if err = uniqueVars(rr.varsN, q.varsN); err != nil {
return err
}
}
if matchHost {
if r.regexp.path != nil {
if err = uniqueVars(rr.varsN, r.regexp.path.varsN); err != nil {
return err
}
}
r.regexp.host = rr
} else {
if r.regexp.host != nil {
if err = uniqueVars(rr.varsN, r.regexp.host.varsN); err != nil {
return err
}
}
if matchQuery {
r.regexp.queries = append(r.regexp.queries, rr)
} else {
r.regexp.path = rr
}
}
r.addMatcher(rr)
return nil
}
// Headers --------------------------------------------------------------------
// headerMatcher matches the request against header values.
type headerMatcher map[string]string
func (m headerMatcher) Match(r *http.Request, match *RouteMatch) bool {
return matchMapWithString(m, r.Header, true)
}
// Headers adds a matcher for request header values.
// It accepts a sequence of key/value pairs to be matched. For example:
//
// r := mux.NewRouter()
// r.Headers("Content-Type", "application/json",
// "X-Requested-With", "XMLHttpRequest")
//
// The above route will only match if both request header values match.
// If the value is an empty string, it will match any value if the key is set.
func (r *Route) Headers(pairs ...string) *Route {
if r.err == nil {
var headers map[string]string
headers, r.err = mapFromPairsToString(pairs...)
return r.addMatcher(headerMatcher(headers))
}
return r
}
// headerRegexMatcher matches the request against the route given a regex for the header
type headerRegexMatcher map[string]*regexp.Regexp
func (m headerRegexMatcher) Match(r *http.Request, match *RouteMatch) bool {
return matchMapWithRegex(m, r.Header, true)
}
// HeadersRegexp accepts a sequence of key/value pairs, where the value has regex
// support. For example:
//
// r := mux.NewRouter()
// r.HeadersRegexp("Content-Type", "application/(text|json)",
// "X-Requested-With", "XMLHttpRequest")
//
// The above route will only match if both the request header matches both regular expressions.
// It the value is an empty string, it will match any value if the key is set.
func (r *Route) HeadersRegexp(pairs ...string) *Route {
if r.err == nil {
var headers map[string]*regexp.Regexp
headers, r.err = mapFromPairsToRegex(pairs...)
return r.addMatcher(headerRegexMatcher(headers))
}
return r
}
// Host -----------------------------------------------------------------------
// Host adds a matcher for the URL host.
// It accepts a template with zero or more URL variables enclosed by {}.
// Variables can define an optional regexp pattern to be matched:
//
// - {name} matches anything until the next dot.
//
// - {name:pattern} matches the given regexp pattern.
//
// For example:
//
// r := mux.NewRouter()
// r.Host("www.example.com")
// r.Host("{subdomain}.domain.com")
// r.Host("{subdomain:[a-z]+}.domain.com")
//
// Variable names must be unique in a given route. They can be retrieved
// calling mux.Vars(request).
func (r *Route) Host(tpl string) *Route {
r.err = r.addRegexpMatcher(tpl, true, false, false)
return r
}
// MatcherFunc ----------------------------------------------------------------
// MatcherFunc is the function signature used by custom matchers.
type MatcherFunc func(*http.Request, *RouteMatch) bool
// Match returns the match for a given request.
func (m MatcherFunc) Match(r *http.Request, match *RouteMatch) bool {
return m(r, match)
}
// MatcherFunc adds a custom function to be used as request matcher.
func (r *Route) MatcherFunc(f MatcherFunc) *Route {
return r.addMatcher(f)
}
// Methods --------------------------------------------------------------------
// methodMatcher matches the request against HTTP methods.
type methodMatcher []string
func (m methodMatcher) Match(r *http.Request, match *RouteMatch) bool {
return matchInArray(m, r.Method)
}
// Methods adds a matcher for HTTP methods.
// It accepts a sequence of one or more methods to be matched, e.g.:
// "GET", "POST", "PUT".
func (r *Route) Methods(methods ...string) *Route {
for k, v := range methods {
methods[k] = strings.ToUpper(v)
}
return r.addMatcher(methodMatcher(methods))
}
// Path -----------------------------------------------------------------------
// Path adds a matcher for the URL path.
// It accepts a template with zero or more URL variables enclosed by {}. The
// template must start with a "/".
// Variables can define an optional regexp pattern to be matched:
//
// - {name} matches anything until the next slash.
//
// - {name:pattern} matches the given regexp pattern.
//
// For example:
//
// r := mux.NewRouter()
// r.Path("/products/").Handler(ProductsHandler)
// r.Path("/products/{key}").Handler(ProductsHandler)
// r.Path("/articles/{category}/{id:[0-9]+}").
// Handler(ArticleHandler)
//
// Variable names must be unique in a given route. They can be retrieved
// calling mux.Vars(request).
func (r *Route) Path(tpl string) *Route {
r.err = r.addRegexpMatcher(tpl, false, false, false)
return r
}
// PathPrefix -----------------------------------------------------------------
// PathPrefix adds a matcher for the URL path prefix. This matches if the given
// template is a prefix of the full URL path. See Route.Path() for details on
// the tpl argument.
//
// Note that it does not treat slashes specially ("/foobar/" will be matched by
// the prefix "/foo") so you may want to use a trailing slash here.
//
// Also note that the setting of Router.StrictSlash() has no effect on routes
// with a PathPrefix matcher.
func (r *Route) PathPrefix(tpl string) *Route {
r.err = r.addRegexpMatcher(tpl, false, true, false)
return r
}
// Query ----------------------------------------------------------------------
// Queries adds a matcher for URL query values.
// It accepts a sequence of key/value pairs. Values may define variables.
// For example:
//
// r := mux.NewRouter()
// r.Queries("foo", "bar", "id", "{id:[0-9]+}")
//
// The above route will only match if the URL contains the defined queries
// values, e.g.: ?foo=bar&id=42.
//
// It the value is an empty string, it will match any value if the key is set.
//
// Variables can define an optional regexp pattern to be matched:
//
// - {name} matches anything until the next slash.
//
// - {name:pattern} matches the given regexp pattern.
func (r *Route) Queries(pairs ...string) *Route {
length := len(pairs)
if length%2 != 0 {
r.err = fmt.Errorf(
"mux: number of parameters must be multiple of 2, got %v", pairs)
return nil
}
for i := 0; i < length; i += 2 {
if r.err = r.addRegexpMatcher(pairs[i]+"="+pairs[i+1], false, false, true); r.err != nil {
return r
}
}
return r
}
// Schemes --------------------------------------------------------------------
// schemeMatcher matches the request against URL schemes.
type schemeMatcher []string
func (m schemeMatcher) Match(r *http.Request, match *RouteMatch) bool {
return matchInArray(m, r.URL.Scheme)
}
// Schemes adds a matcher for URL schemes.
// It accepts a sequence of schemes to be matched, e.g.: "http", "https".
func (r *Route) Schemes(schemes ...string) *Route {
for k, v := range schemes {
schemes[k] = strings.ToLower(v)
}
if r.buildScheme == "" && len(schemes) > 0 {
r.buildScheme = schemes[0]
}
return r.addMatcher(schemeMatcher(schemes))
}
// BuildVarsFunc --------------------------------------------------------------
// BuildVarsFunc is the function signature used by custom build variable
// functions (which can modify route variables before a route's URL is built).
type BuildVarsFunc func(map[string]string) map[string]string
// BuildVarsFunc adds a custom function to be used to modify build variables
// before a route's URL is built.
func (r *Route) BuildVarsFunc(f BuildVarsFunc) *Route {
r.buildVarsFunc = f
return r
}
// Subrouter ------------------------------------------------------------------
// Subrouter creates a subrouter for the route.
//
// It will test the inner routes only if the parent route matched. For example:
//
// r := mux.NewRouter()
// s := r.Host("www.example.com").Subrouter()
// s.HandleFunc("/products/", ProductsHandler)
// s.HandleFunc("/products/{key}", ProductHandler)
// s.HandleFunc("/articles/{category}/{id:[0-9]+}"), ArticleHandler)
//
// Here, the routes registered in the subrouter won't be tested if the host
// doesn't match.
func (r *Route) Subrouter() *Router {
router := &Router{parent: r, strictSlash: r.strictSlash}
r.addMatcher(router)
return router
}
// ----------------------------------------------------------------------------
// URL building
// ----------------------------------------------------------------------------
// URL builds a URL for the route.
//
// It accepts a sequence of key/value pairs for the route variables. For
// example, given this route:
//
// r := mux.NewRouter()
// r.HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
// Name("article")
//
// ...a URL for it can be built using:
//
// url, err := r.Get("article").URL("category", "technology", "id", "42")
//
// ...which will return an url.URL with the following path:
//
// "/articles/technology/42"
//
// This also works for host variables:
//
// r := mux.NewRouter()
// r.Host("{subdomain}.domain.com").
// HandleFunc("/articles/{category}/{id:[0-9]+}", ArticleHandler).
// Name("article")
//
// // url.String() will be "http://news.domain.com/articles/technology/42"
// url, err := r.Get("article").URL("subdomain", "news",
// "category", "technology",
// "id", "42")
//
// All variables defined in the route are required, and their values must
// conform to the corresponding patterns.
func (r *Route) URL(pairs ...string) (*url.URL, error) {
if r.err != nil {
return nil, r.err
}
if r.regexp == nil {
return nil, errors.New("mux: route doesn't have a host or path")
}
values, err := r.prepareVars(pairs...)
if err != nil {
return nil, err
}
var scheme, host, path string
queries := make([]string, 0, len(r.regexp.queries))
if r.regexp.host != nil {
if host, err = r.regexp.host.url(values); err != nil {
return nil, err
}
scheme = "http"
if r.buildScheme != "" {
scheme = r.buildScheme
}
}
if r.regexp.path != nil {
if path, err = r.regexp.path.url(values); err != nil {
return nil, err
}
}
for _, q := range r.regexp.queries {
var query string
if query, err = q.url(values); err != nil {
return nil, err
}
queries = append(queries, query)
}
return &url.URL{
Scheme: scheme,
Host: host,
Path: path,
RawQuery: strings.Join(queries, "&"),
}, nil
}
// URLHost builds the host part of the URL for a route. See Route.URL().
//
// The route must have a host defined.
func (r *Route) URLHost(pairs ...string) (*url.URL, error) {
if r.err != nil {
return nil, r.err
}
if r.regexp == nil || r.regexp.host == nil {
return nil, errors.New("mux: route doesn't have a host")
}
values, err := r.prepareVars(pairs...)
if err != nil {
return nil, err
}
host, err := r.regexp.host.url(values)
if err != nil {
return nil, err
}
u := &url.URL{
Scheme: "http",
Host: host,
}
if r.buildScheme != "" {
u.Scheme = r.buildScheme
}
return u, nil
}
// URLPath builds the path part of the URL for a route. See Route.URL().
//
// The route must have a path defined.
func (r *Route) URLPath(pairs ...string) (*url.URL, error) {
if r.err != nil {
return nil, r.err
}
if r.regexp == nil || r.regexp.path == nil {
return nil, errors.New("mux: route doesn't have a path")
}
values, err := r.prepareVars(pairs...)
if err != nil {
return nil, err
}
path, err := r.regexp.path.url(values)
if err != nil {
return nil, err
}
return &url.URL{
Path: path,
}, nil
}
// GetPathTemplate returns the template used to build the
// route match.
// This is useful for building simple REST API documentation and for instrumentation
// against third-party services.
// An error will be returned if the route does not define a path.
func (r *Route) GetPathTemplate() (string, error) {
if r.err != nil {
return "", r.err
}
if r.regexp == nil || r.regexp.path == nil {
return "", errors.New("mux: route doesn't have a path")
}
return r.regexp.path.template, nil
}
// GetPathRegexp returns the expanded regular expression used to match route path.
// This is useful for building simple REST API documentation and for instrumentation
// against third-party services.
// An error will be returned if the route does not define a path.
func (r *Route) GetPathRegexp() (string, error) {
if r.err != nil {
return "", r.err
}
if r.regexp == nil || r.regexp.path == nil {
return "", errors.New("mux: route does not have a path")
}
return r.regexp.path.regexp.String(), nil
}
// GetMethods returns the methods the route matches against
// This is useful for building simple REST API documentation and for instrumentation
// against third-party services.
// An empty list will be returned if route does not have methods.
func (r *Route) GetMethods() ([]string, error) {
if r.err != nil {
return nil, r.err
}
for _, m := range r.matchers {
if methods, ok := m.(methodMatcher); ok {
return []string(methods), nil
}
}
return nil, nil
}
// GetHostTemplate returns the template used to build the
// route match.
// This is useful for building simple REST API documentation and for instrumentation
// against third-party services.
// An error will be returned if the route does not define a host.
func (r *Route) GetHostTemplate() (string, error) {
if r.err != nil {
return "", r.err
}
if r.regexp == nil || r.regexp.host == nil {
return "", errors.New("mux: route doesn't have a host")
}
return r.regexp.host.template, nil
}
// prepareVars converts the route variable pairs into a map. If the route has a
// BuildVarsFunc, it is invoked.
func (r *Route) prepareVars(pairs ...string) (map[string]string, error) {
m, err := mapFromPairsToString(pairs...)
if err != nil {
return nil, err
}
return r.buildVars(m), nil
}
func (r *Route) buildVars(m map[string]string) map[string]string {
if r.parent != nil {
m = r.parent.buildVars(m)
}
if r.buildVarsFunc != nil {
m = r.buildVarsFunc(m)
}
return m
}
// ----------------------------------------------------------------------------
// parentRoute
// ----------------------------------------------------------------------------
// parentRoute allows routes to know about parent host and path definitions.
type parentRoute interface {
getNamedRoutes() map[string]*Route
getRegexpGroup() *routeRegexpGroup
buildVars(map[string]string) map[string]string
}
// getNamedRoutes returns the map where named routes are registered.
func (r *Route) getNamedRoutes() map[string]*Route {
if r.parent == nil {
// During tests router is not always set.
r.parent = NewRouter()
}
return r.parent.getNamedRoutes()
}
// getRegexpGroup returns regexp definitions from this route.
func (r *Route) getRegexpGroup() *routeRegexpGroup {
if r.regexp == nil {
if r.parent == nil {
// During tests router is not always set.
r.parent = NewRouter()
}
regexp := r.parent.getRegexpGroup()
if regexp == nil {
r.regexp = new(routeRegexpGroup)
} else {
// Copy.
r.regexp = &routeRegexpGroup{
host: regexp.host,
path: regexp.path,
queries: regexp.queries,
}
}
}
return r.regexp
}

3
vendor/golang.org/x/sys/AUTHORS generated vendored
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@ -1,3 +0,0 @@
# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

View file

@ -1,3 +0,0 @@
# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

27
vendor/golang.org/x/sys/LICENSE generated vendored
View file

@ -1,27 +0,0 @@
Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

22
vendor/golang.org/x/sys/PATENTS generated vendored
View file

@ -1,22 +0,0 @@
Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

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@ -1 +0,0 @@
_obj/

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@ -1,173 +0,0 @@
# Building `sys/unix`
The sys/unix package provides access to the raw system call interface of the
underlying operating system. See: https://godoc.org/golang.org/x/sys/unix
Porting Go to a new architecture/OS combination or adding syscalls, types, or
constants to an existing architecture/OS pair requires some manual effort;
however, there are tools that automate much of the process.
## Build Systems
There are currently two ways we generate the necessary files. We are currently
migrating the build system to use containers so the builds are reproducible.
This is being done on an OS-by-OS basis. Please update this documentation as
components of the build system change.
### Old Build System (currently for `GOOS != "Linux" || GOARCH == "sparc64"`)
The old build system generates the Go files based on the C header files
present on your system. This means that files
for a given GOOS/GOARCH pair must be generated on a system with that OS and
architecture. This also means that the generated code can differ from system
to system, based on differences in the header files.
To avoid this, if you are using the old build system, only generate the Go
files on an installation with unmodified header files. It is also important to
keep track of which version of the OS the files were generated from (ex.
Darwin 14 vs Darwin 15). This makes it easier to track the progress of changes
and have each OS upgrade correspond to a single change.
To build the files for your current OS and architecture, make sure GOOS and
GOARCH are set correctly and run `mkall.sh`. This will generate the files for
your specific system. Running `mkall.sh -n` shows the commands that will be run.
Requirements: bash, perl, go
### New Build System (currently for `GOOS == "Linux" && GOARCH != "sparc64"`)
The new build system uses a Docker container to generate the go files directly
from source checkouts of the kernel and various system libraries. This means
that on any platform that supports Docker, all the files using the new build
system can be generated at once, and generated files will not change based on
what the person running the scripts has installed on their computer.
The OS specific files for the new build system are located in the `${GOOS}`
directory, and the build is coordinated by the `${GOOS}/mkall.go` program. When
the kernel or system library updates, modify the Dockerfile at
`${GOOS}/Dockerfile` to checkout the new release of the source.
To build all the files under the new build system, you must be on an amd64/Linux
system and have your GOOS and GOARCH set accordingly. Running `mkall.sh` will
then generate all of the files for all of the GOOS/GOARCH pairs in the new build
system. Running `mkall.sh -n` shows the commands that will be run.
Requirements: bash, perl, go, docker
## Component files
This section describes the various files used in the code generation process.
It also contains instructions on how to modify these files to add a new
architecture/OS or to add additional syscalls, types, or constants. Note that
if you are using the new build system, the scripts cannot be called normally.
They must be called from within the docker container.
### asm files
The hand-written assembly file at `asm_${GOOS}_${GOARCH}.s` implements system
call dispatch. There are three entry points:
```
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
```
The first and second are the standard ones; they differ only in how many
arguments can be passed to the kernel. The third is for low-level use by the
ForkExec wrapper. Unlike the first two, it does not call into the scheduler to
let it know that a system call is running.
When porting Go to an new architecture/OS, this file must be implemented for
each GOOS/GOARCH pair.
### mksysnum
Mksysnum is a script located at `${GOOS}/mksysnum.pl` (or `mksysnum_${GOOS}.pl`
for the old system). This script takes in a list of header files containing the
syscall number declarations and parses them to produce the corresponding list of
Go numeric constants. See `zsysnum_${GOOS}_${GOARCH}.go` for the generated
constants.
Adding new syscall numbers is mostly done by running the build on a sufficiently
new installation of the target OS (or updating the source checkouts for the
new build system). However, depending on the OS, you make need to update the
parsing in mksysnum.
### mksyscall.pl
The `syscall.go`, `syscall_${GOOS}.go`, `syscall_${GOOS}_${GOARCH}.go` are
hand-written Go files which implement system calls (for unix, the specific OS,
or the specific OS/Architecture pair respectively) that need special handling
and list `//sys` comments giving prototypes for ones that can be generated.
The mksyscall.pl script takes the `//sys` and `//sysnb` comments and converts
them into syscalls. This requires the name of the prototype in the comment to
match a syscall number in the `zsysnum_${GOOS}_${GOARCH}.go` file. The function
prototype can be exported (capitalized) or not.
Adding a new syscall often just requires adding a new `//sys` function prototype
with the desired arguments and a capitalized name so it is exported. However, if
you want the interface to the syscall to be different, often one will make an
unexported `//sys` prototype, an then write a custom wrapper in
`syscall_${GOOS}.go`.
### types files
For each OS, there is a hand-written Go file at `${GOOS}/types.go` (or
`types_${GOOS}.go` on the old system). This file includes standard C headers and
creates Go type aliases to the corresponding C types. The file is then fed
through godef to get the Go compatible definitions. Finally, the generated code
is fed though mkpost.go to format the code correctly and remove any hidden or
private identifiers. This cleaned-up code is written to
`ztypes_${GOOS}_${GOARCH}.go`.
The hardest part about preparing this file is figuring out which headers to
include and which symbols need to be `#define`d to get the actual data
structures that pass through to the kernel system calls. Some C libraries
preset alternate versions for binary compatibility and translate them on the
way in and out of system calls, but there is almost always a `#define` that can
get the real ones.
See `types_darwin.go` and `linux/types.go` for examples.
To add a new type, add in the necessary include statement at the top of the
file (if it is not already there) and add in a type alias line. Note that if
your type is significantly different on different architectures, you may need
some `#if/#elif` macros in your include statements.
### mkerrors.sh
This script is used to generate the system's various constants. This doesn't
just include the error numbers and error strings, but also the signal numbers
an a wide variety of miscellaneous constants. The constants come from the list
of include files in the `includes_${uname}` variable. A regex then picks out
the desired `#define` statements, and generates the corresponding Go constants.
The error numbers and strings are generated from `#include <errno.h>`, and the
signal numbers and strings are generated from `#include <signal.h>`. All of
these constants are written to `zerrors_${GOOS}_${GOARCH}.go` via a C program,
`_errors.c`, which prints out all the constants.
To add a constant, add the header that includes it to the appropriate variable.
Then, edit the regex (if necessary) to match the desired constant. Avoid making
the regex too broad to avoid matching unintended constants.
## Generated files
### `zerror_${GOOS}_${GOARCH}.go`
A file containing all of the system's generated error numbers, error strings,
signal numbers, and constants. Generated by `mkerrors.sh` (see above).
### `zsyscall_${GOOS}_${GOARCH}.go`
A file containing all the generated syscalls for a specific GOOS and GOARCH.
Generated by `mksyscall.pl` (see above).
### `zsysnum_${GOOS}_${GOARCH}.go`
A list of numeric constants for all the syscall number of the specific GOOS
and GOARCH. Generated by mksysnum (see above).
### `ztypes_${GOOS}_${GOARCH}.go`
A file containing Go types for passing into (or returning from) syscalls.
Generated by godefs and the types file (see above).

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@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for 386, Darwin
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for AMD64, Darwin
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

View file

@ -1,30 +0,0 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
// +build arm,darwin
#include "textflag.h"
//
// System call support for ARM, Darwin
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
B syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
B syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
B syscall·RawSyscall6(SB)

View file

@ -1,30 +0,0 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
// +build arm64,darwin
#include "textflag.h"
//
// System call support for AMD64, Darwin
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
B syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
B syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
B syscall·RawSyscall6(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for AMD64, DragonFly
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-64
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-88
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-112
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-64
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-88
JMP syscall·RawSyscall6(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for 386, FreeBSD
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for AMD64, FreeBSD
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for ARM, FreeBSD
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
B syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
B syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
B syscall·RawSyscall6(SB)

View file

@ -1,35 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System calls for 386, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)
TEXT ·socketcall(SB),NOSPLIT,$0-36
JMP syscall·socketcall(SB)
TEXT ·rawsocketcall(SB),NOSPLIT,$0-36
JMP syscall·rawsocketcall(SB)
TEXT ·seek(SB),NOSPLIT,$0-28
JMP syscall·seek(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System calls for AMD64, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)
TEXT ·gettimeofday(SB),NOSPLIT,$0-16
JMP syscall·gettimeofday(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System calls for arm, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
B syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
B syscall·RawSyscall6(SB)
TEXT ·seek(SB),NOSPLIT,$0-32
B syscall·seek(SB)

View file

@ -1,24 +0,0 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux
// +build arm64
// +build !gccgo
#include "textflag.h"
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
B syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
B syscall·RawSyscall6(SB)

View file

@ -1,28 +0,0 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux
// +build mips64 mips64le
// +build !gccgo
#include "textflag.h"
//
// System calls for mips64, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

View file

@ -1,31 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux
// +build mips mipsle
// +build !gccgo
#include "textflag.h"
//
// System calls for mips, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)

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@ -1,28 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux
// +build ppc64 ppc64le
// +build !gccgo
#include "textflag.h"
//
// System calls for ppc64, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
BR syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
BR syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
BR syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
BR syscall·RawSyscall6(SB)

View file

@ -1,28 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build s390x
// +build linux
// +build !gccgo
#include "textflag.h"
//
// System calls for s390x, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
BR syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
BR syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
BR syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
BR syscall·RawSyscall6(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for 386, NetBSD
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for AMD64, NetBSD
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for ARM, NetBSD
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
B syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
B syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
B syscall·RawSyscall6(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for 386, OpenBSD
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)

View file

@ -1,29 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for AMD64, OpenBSD
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

View file

@ -1,17 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System calls for amd64, Solaris are implemented in runtime/syscall_solaris.go
//
TEXT ·sysvicall6(SB),NOSPLIT,$0-88
JMP syscall·sysvicall6(SB)
TEXT ·rawSysvicall6(SB),NOSPLIT,$0-88
JMP syscall·rawSysvicall6(SB)

View file

@ -1,35 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Bluetooth sockets and messages
package unix
// Bluetooth Protocols
const (
BTPROTO_L2CAP = 0
BTPROTO_HCI = 1
BTPROTO_SCO = 2
BTPROTO_RFCOMM = 3
BTPROTO_BNEP = 4
BTPROTO_CMTP = 5
BTPROTO_HIDP = 6
BTPROTO_AVDTP = 7
)
const (
HCI_CHANNEL_RAW = 0
HCI_CHANNEL_USER = 1
HCI_CHANNEL_MONITOR = 2
HCI_CHANNEL_CONTROL = 3
)
// Socketoption Level
const (
SOL_BLUETOOTH = 0x112
SOL_HCI = 0x0
SOL_L2CAP = 0x6
SOL_RFCOMM = 0x12
SOL_SCO = 0x11
)

View file

@ -1,13 +0,0 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package unix
const (
R_OK = 0x4
W_OK = 0x2
X_OK = 0x1
)

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@ -1,102 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris
package unix
import "unsafe"
// readInt returns the size-bytes unsigned integer in native byte order at offset off.
func readInt(b []byte, off, size uintptr) (u uint64, ok bool) {
if len(b) < int(off+size) {
return 0, false
}
if isBigEndian {
return readIntBE(b[off:], size), true
}
return readIntLE(b[off:], size), true
}
func readIntBE(b []byte, size uintptr) uint64 {
switch size {
case 1:
return uint64(b[0])
case 2:
_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[1]) | uint64(b[0])<<8
case 4:
_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[3]) | uint64(b[2])<<8 | uint64(b[1])<<16 | uint64(b[0])<<24
case 8:
_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
default:
panic("syscall: readInt with unsupported size")
}
}
func readIntLE(b []byte, size uintptr) uint64 {
switch size {
case 1:
return uint64(b[0])
case 2:
_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[0]) | uint64(b[1])<<8
case 4:
_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24
case 8:
_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
default:
panic("syscall: readInt with unsupported size")
}
}
// ParseDirent parses up to max directory entries in buf,
// appending the names to names. It returns the number of
// bytes consumed from buf, the number of entries added
// to names, and the new names slice.
func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
origlen := len(buf)
count = 0
for max != 0 && len(buf) > 0 {
reclen, ok := direntReclen(buf)
if !ok || reclen > uint64(len(buf)) {
return origlen, count, names
}
rec := buf[:reclen]
buf = buf[reclen:]
ino, ok := direntIno(rec)
if !ok {
break
}
if ino == 0 { // File absent in directory.
continue
}
const namoff = uint64(unsafe.Offsetof(Dirent{}.Name))
namlen, ok := direntNamlen(rec)
if !ok || namoff+namlen > uint64(len(rec)) {
break
}
name := rec[namoff : namoff+namlen]
for i, c := range name {
if c == 0 {
name = name[:i]
break
}
}
// Check for useless names before allocating a string.
if string(name) == "." || string(name) == ".." {
continue
}
max--
count++
names = append(names, string(name))
}
return origlen - len(buf), count, names
}

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@ -1,9 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// +build ppc64 s390x mips mips64
package unix
const isBigEndian = true

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@ -1,9 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
// +build 386 amd64 amd64p32 arm arm64 ppc64le mipsle mips64le
package unix
const isBigEndian = false

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@ -1,27 +0,0 @@
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
// Unix environment variables.
package unix
import "syscall"
func Getenv(key string) (value string, found bool) {
return syscall.Getenv(key)
}
func Setenv(key, value string) error {
return syscall.Setenv(key, value)
}
func Clearenv() {
syscall.Clearenv()
}
func Environ() []string {
return syscall.Environ()
}

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@ -1,14 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.4
package unix
import "syscall"
func Unsetenv(key string) error {
// This was added in Go 1.4.
return syscall.Unsetenv(key)
}

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@ -1,24 +0,0 @@
// +build linux darwin freebsd openbsd netbsd dragonfly
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux netbsd openbsd
package unix
import "unsafe"
// fcntl64Syscall is usually SYS_FCNTL, but is overridden on 32-bit Linux
// systems by flock_linux_32bit.go to be SYS_FCNTL64.
var fcntl64Syscall uintptr = SYS_FCNTL
// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
_, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk)))
if errno == 0 {
return nil
}
return errno
}

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@ -1,13 +0,0 @@
// +build linux,386 linux,arm linux,mips linux,mipsle
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package unix
func init() {
// On 32-bit Linux systems, the fcntl syscall that matches Go's
// Flock_t type is SYS_FCNTL64, not SYS_FCNTL.
fcntl64Syscall = SYS_FCNTL64
}

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@ -1,46 +0,0 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build gccgo
package unix
import "syscall"
// We can't use the gc-syntax .s files for gccgo. On the plus side
// much of the functionality can be written directly in Go.
//extern gccgoRealSyscall
func realSyscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r, errno uintptr)
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
syscall.Entersyscall()
r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
syscall.Exitsyscall()
return r, 0, syscall.Errno(errno)
}
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) {
syscall.Entersyscall()
r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, 0, 0, 0)
syscall.Exitsyscall()
return r, 0, syscall.Errno(errno)
}
func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) {
syscall.Entersyscall()
r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9)
syscall.Exitsyscall()
return r, 0, syscall.Errno(errno)
}
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
return r, 0, syscall.Errno(errno)
}
func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) {
r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, 0, 0, 0)
return r, 0, syscall.Errno(errno)
}

View file

@ -1,41 +0,0 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build gccgo
#include <errno.h>
#include <stdint.h>
#include <unistd.h>
#define _STRINGIFY2_(x) #x
#define _STRINGIFY_(x) _STRINGIFY2_(x)
#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)
// Call syscall from C code because the gccgo support for calling from
// Go to C does not support varargs functions.
struct ret {
uintptr_t r;
uintptr_t err;
};
struct ret
gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
{
struct ret r;
errno = 0;
r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
r.err = errno;
return r;
}
// Define the use function in C so that it is not inlined.
extern void use(void *) __asm__ (GOSYM_PREFIX GOPKGPATH ".use") __attribute__((noinline));
void
use(void *p __attribute__ ((unused)))
{
}

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@ -1,20 +0,0 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build gccgo,linux,amd64
package unix
import "syscall"
//extern gettimeofday
func realGettimeofday(*Timeval, *byte) int32
func gettimeofday(tv *Timeval) (err syscall.Errno) {
r := realGettimeofday(tv, nil)
if r < 0 {
return syscall.GetErrno()
}
return 0
}

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@ -1,20 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build gccgo,linux,sparc64
package unix
import "syscall"
//extern sysconf
func realSysconf(name int) int64
func sysconf(name int) (n int64, err syscall.Errno) {
r := realSysconf(name)
if r < 0 {
return 0, syscall.GetErrno()
}
return r, 0
}

179
vendor/golang.org/x/sys/unix/mkall.sh generated vendored
View file

@ -1,179 +0,0 @@
#!/usr/bin/env bash
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# This script runs or (given -n) prints suggested commands to generate files for
# the Architecture/OS specified by the GOARCH and GOOS environment variables.
# See README.md for more information about how the build system works.
GOOSARCH="${GOOS}_${GOARCH}"
# defaults
mksyscall="./mksyscall.pl"
mkerrors="./mkerrors.sh"
zerrors="zerrors_$GOOSARCH.go"
mksysctl=""
zsysctl="zsysctl_$GOOSARCH.go"
mksysnum=
mktypes=
run="sh"
cmd=""
case "$1" in
-syscalls)
for i in zsyscall*go
do
# Run the command line that appears in the first line
# of the generated file to regenerate it.
sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
rm _$i
done
exit 0
;;
-n)
run="cat"
cmd="echo"
shift
esac
case "$#" in
0)
;;
*)
echo 'usage: mkall.sh [-n]' 1>&2
exit 2
esac
if [[ "$GOOS" = "linux" ]] && [[ "$GOARCH" != "sparc64" ]]; then
# Use then new build system
# Files generated through docker (use $cmd so you can Ctl-C the build or run)
$cmd docker build --tag generate:$GOOS $GOOS
$cmd docker run --interactive --tty --volume $(dirname "$(readlink -f "$0")"):/build generate:$GOOS
exit
fi
GOOSARCH_in=syscall_$GOOSARCH.go
case "$GOOSARCH" in
_* | *_ | _)
echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
exit 1
;;
darwin_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32"
mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
darwin_amd64)
mkerrors="$mkerrors -m64"
mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk macosx)/usr/include/sys/syscall.h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
darwin_arm)
mkerrors="$mkerrors"
mksysnum="./mksysnum_darwin.pl /usr/include/sys/syscall.h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
darwin_arm64)
mkerrors="$mkerrors -m64"
mksysnum="./mksysnum_darwin.pl $(xcrun --show-sdk-path --sdk iphoneos)/usr/include/sys/syscall.h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
dragonfly_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32 -dragonfly"
mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
dragonfly_amd64)
mkerrors="$mkerrors -m64"
mksyscall="./mksyscall.pl -dragonfly"
mksysnum="curl -s 'http://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master' | ./mksysnum_dragonfly.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
freebsd_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32"
mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
freebsd_amd64)
mkerrors="$mkerrors -m64"
mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
freebsd_arm)
mkerrors="$mkerrors"
mksyscall="./mksyscall.pl -l32 -arm"
mksysnum="curl -s 'http://svn.freebsd.org/base/stable/10/sys/kern/syscalls.master' | ./mksysnum_freebsd.pl"
# Let the type of C char be signed for making the bare syscall
# API consistent across over platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
linux_sparc64)
GOOSARCH_in=syscall_linux_sparc64.go
unistd_h=/usr/include/sparc64-linux-gnu/asm/unistd.h
mkerrors="$mkerrors -m64"
mksysnum="./mksysnum_linux.pl $unistd_h"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
netbsd_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32 -netbsd"
mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
netbsd_amd64)
mkerrors="$mkerrors -m64"
mksyscall="./mksyscall.pl -netbsd"
mksysnum="curl -s 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_netbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
openbsd_386)
mkerrors="$mkerrors -m32"
mksyscall="./mksyscall.pl -l32 -openbsd"
mksysctl="./mksysctl_openbsd.pl"
zsysctl="zsysctl_openbsd.go"
mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
openbsd_amd64)
mkerrors="$mkerrors -m64"
mksyscall="./mksyscall.pl -openbsd"
mksysctl="./mksysctl_openbsd.pl"
zsysctl="zsysctl_openbsd.go"
mksysnum="curl -s 'http://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/kern/syscalls.master' | ./mksysnum_openbsd.pl"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
solaris_amd64)
mksyscall="./mksyscall_solaris.pl"
mkerrors="$mkerrors -m64"
mksysnum=
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
*)
echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
exit 1
;;
esac
(
if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
case "$GOOS" in
*)
syscall_goos="syscall_$GOOS.go"
case "$GOOS" in
darwin | dragonfly | freebsd | netbsd | openbsd)
syscall_goos="syscall_bsd.go $syscall_goos"
;;
esac
if [ -n "$mksyscall" ]; then echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go"; fi
;;
esac
if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
if [ -n "$mktypes" ]; then
echo "$mktypes types_$GOOS.go | go run mkpost.go > ztypes_$GOOSARCH.go";
fi
) | $run

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@ -1,549 +0,0 @@
#!/usr/bin/env bash
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# Generate Go code listing errors and other #defined constant
# values (ENAMETOOLONG etc.), by asking the preprocessor
# about the definitions.
unset LANG
export LC_ALL=C
export LC_CTYPE=C
if test -z "$GOARCH" -o -z "$GOOS"; then
echo 1>&2 "GOARCH or GOOS not defined in environment"
exit 1
fi
# Check that we are using the new build system if we should
if [[ "$GOOS" -eq "linux" ]] && [[ "$GOARCH" != "sparc64" ]]; then
if [[ "$GOLANG_SYS_BUILD" -ne "docker" ]]; then
echo 1>&2 "In the new build system, mkerrors should not be called directly."
echo 1>&2 "See README.md"
exit 1
fi
fi
CC=${CC:-cc}
if [[ "$GOOS" -eq "solaris" ]]; then
# Assumes GNU versions of utilities in PATH.
export PATH=/usr/gnu/bin:$PATH
fi
uname=$(uname)
includes_Darwin='
#define _DARWIN_C_SOURCE
#define KERNEL
#define _DARWIN_USE_64_BIT_INODE
#include <sys/types.h>
#include <sys/event.h>
#include <sys/ptrace.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <termios.h>
'
includes_DragonFly='
#include <sys/types.h>
#include <sys/event.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <termios.h>
#include <netinet/ip.h>
#include <net/ip_mroute/ip_mroute.h>
'
includes_FreeBSD='
#include <sys/param.h>
#include <sys/types.h>
#include <sys/event.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <termios.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
#include <sys/extattr.h>
#if __FreeBSD__ >= 10
#define IFT_CARP 0xf8 // IFT_CARP is deprecated in FreeBSD 10
#undef SIOCAIFADDR
#define SIOCAIFADDR _IOW(105, 26, struct oifaliasreq) // ifaliasreq contains if_data
#undef SIOCSIFPHYADDR
#define SIOCSIFPHYADDR _IOW(105, 70, struct oifaliasreq) // ifaliasreq contains if_data
#endif
'
includes_Linux='
#define _LARGEFILE_SOURCE
#define _LARGEFILE64_SOURCE
#ifndef __LP64__
#define _FILE_OFFSET_BITS 64
#endif
#define _GNU_SOURCE
// <sys/ioctl.h> is broken on powerpc64, as it fails to include definitions of
// these structures. We just include them copied from <bits/termios.h>.
#if defined(__powerpc__)
struct sgttyb {
char sg_ispeed;
char sg_ospeed;
char sg_erase;
char sg_kill;
short sg_flags;
};
struct tchars {
char t_intrc;
char t_quitc;
char t_startc;
char t_stopc;
char t_eofc;
char t_brkc;
};
struct ltchars {
char t_suspc;
char t_dsuspc;
char t_rprntc;
char t_flushc;
char t_werasc;
char t_lnextc;
};
#endif
#include <bits/sockaddr.h>
#include <sys/epoll.h>
#include <sys/eventfd.h>
#include <sys/inotify.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <linux/if.h>
#include <linux/if_alg.h>
#include <linux/if_arp.h>
#include <linux/if_ether.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_addr.h>
#include <linux/falloc.h>
#include <linux/filter.h>
#include <linux/fs.h>
#include <linux/keyctl.h>
#include <linux/netlink.h>
#include <linux/random.h>
#include <linux/reboot.h>
#include <linux/rtnetlink.h>
#include <linux/ptrace.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/icmpv6.h>
#include <linux/serial.h>
#include <linux/can.h>
#include <linux/vm_sockets.h>
#include <net/route.h>
#include <asm/termbits.h>
#ifndef MSG_FASTOPEN
#define MSG_FASTOPEN 0x20000000
#endif
#ifndef PTRACE_GETREGS
#define PTRACE_GETREGS 0xc
#endif
#ifndef PTRACE_SETREGS
#define PTRACE_SETREGS 0xd
#endif
#ifndef SOL_NETLINK
#define SOL_NETLINK 270
#endif
#ifdef SOL_BLUETOOTH
// SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
// but it is already in bluetooth_linux.go
#undef SOL_BLUETOOTH
#endif
// Certain constants are missing from the fs/crypto UAPI
#define FS_KEY_DESC_PREFIX "fscrypt:"
#define FS_KEY_DESC_PREFIX_SIZE 8
#define FS_MAX_KEY_SIZE 64
'
includes_NetBSD='
#include <sys/types.h>
#include <sys/param.h>
#include <sys/event.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/termios.h>
#include <sys/ttycom.h>
#include <sys/wait.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
#include <netinet/if_ether.h>
// Needed since <sys/param.h> refers to it...
#define schedppq 1
'
includes_OpenBSD='
#include <sys/types.h>
#include <sys/param.h>
#include <sys/event.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/termios.h>
#include <sys/ttycom.h>
#include <sys/wait.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/if_var.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
#include <netinet/if_ether.h>
#include <net/if_bridge.h>
// We keep some constants not supported in OpenBSD 5.5 and beyond for
// the promise of compatibility.
#define EMUL_ENABLED 0x1
#define EMUL_NATIVE 0x2
#define IPV6_FAITH 0x1d
#define IPV6_OPTIONS 0x1
#define IPV6_RTHDR_STRICT 0x1
#define IPV6_SOCKOPT_RESERVED1 0x3
#define SIOCGIFGENERIC 0xc020693a
#define SIOCSIFGENERIC 0x80206939
#define WALTSIG 0x4
'
includes_SunOS='
#include <limits.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <termios.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
'
includes='
#include <sys/types.h>
#include <sys/file.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <netinet/tcp.h>
#include <errno.h>
#include <sys/signal.h>
#include <signal.h>
#include <sys/resource.h>
#include <time.h>
'
ccflags="$@"
# Write go tool cgo -godefs input.
(
echo package unix
echo
echo '/*'
indirect="includes_$(uname)"
echo "${!indirect} $includes"
echo '*/'
echo 'import "C"'
echo 'import "syscall"'
echo
echo 'const ('
# The gcc command line prints all the #defines
# it encounters while processing the input
echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
awk '
$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers
$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
$2 ~ /^(SCM_SRCRT)$/ {next}
$2 ~ /^(MAP_FAILED)$/ {next}
$2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc.
$2 ~ /^EXTATTR_NAMESPACE_NAMES/ ||
$2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next}
$2 !~ /^ETH_/ &&
$2 !~ /^EPROC_/ &&
$2 !~ /^EQUIV_/ &&
$2 !~ /^EXPR_/ &&
$2 ~ /^E[A-Z0-9_]+$/ ||
$2 ~ /^B[0-9_]+$/ ||
$2 == "BOTHER" ||
$2 ~ /^CI?BAUD(EX)?$/ ||
$2 == "IBSHIFT" ||
$2 ~ /^V[A-Z0-9]+$/ ||
$2 ~ /^CS[A-Z0-9]/ ||
$2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
$2 ~ /^IGN/ ||
$2 ~ /^IX(ON|ANY|OFF)$/ ||
$2 ~ /^IN(LCR|PCK)$/ ||
$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
$2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
$2 == "BRKINT" ||
$2 == "HUPCL" ||
$2 == "PENDIN" ||
$2 == "TOSTOP" ||
$2 == "XCASE" ||
$2 == "ALTWERASE" ||
$2 == "NOKERNINFO" ||
$2 ~ /^PAR/ ||
$2 ~ /^SIG[^_]/ ||
$2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
$2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
$2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
$2 ~ /^O?XTABS$/ ||
$2 ~ /^TC[IO](ON|OFF)$/ ||
$2 ~ /^IN_/ ||
$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
$2 ~ /^FALLOC_/ ||
$2 == "ICMPV6_FILTER" ||
$2 == "SOMAXCONN" ||
$2 == "NAME_MAX" ||
$2 == "IFNAMSIZ" ||
$2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ ||
$2 ~ /^SYSCTL_VERS/ ||
$2 ~ /^(MS|MNT)_/ ||
$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
$2 ~ /^(O|F|E?FD|NAME|S|PTRACE|PT)_/ ||
$2 ~ /^LINUX_REBOOT_CMD_/ ||
$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
$2 !~ "NLA_TYPE_MASK" &&
$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
$2 ~ /^SIOC/ ||
$2 ~ /^TIOC/ ||
$2 ~ /^TCGET/ ||
$2 ~ /^TCSET/ ||
$2 ~ /^TC(FLSH|SBRKP?|XONC)$/ ||
$2 !~ "RTF_BITS" &&
$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
$2 ~ /^BIOC/ ||
$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|LOCKS|MEMLOCK|MSGQUEUE|NICE|NOFILE|NPROC|RSS|RTPRIO|RTTIME|SIGPENDING|STACK)|RLIM_INFINITY/ ||
$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
$2 ~ /^CLONE_[A-Z_]+/ ||
$2 !~ /^(BPF_TIMEVAL)$/ &&
$2 ~ /^(BPF|DLT)_/ ||
$2 ~ /^CLOCK_/ ||
$2 ~ /^CAN_/ ||
$2 ~ /^ALG_/ ||
$2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE|IOC_(GET|SET)_ENCRYPTION)/ ||
$2 ~ /^GRND_/ ||
$2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
$2 ~ /^KEYCTL_/ ||
$2 ~ /^SPLICE_/ ||
$2 ~ /^(VM|VMADDR)_/ ||
$2 !~ "WMESGLEN" &&
$2 ~ /^W[A-Z0-9]+$/ ||
$2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)}
$2 ~ /^__WCOREFLAG$/ {next}
$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
{next}
' | sort
echo ')'
) >_const.go
# Pull out the error names for later.
errors=$(
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
sort
)
# Pull out the signal names for later.
signals=$(
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
sort
)
# Again, writing regexps to a file.
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
sort >_error.grep
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
sort >_signal.grep
echo '// mkerrors.sh' "$@"
echo '// Code generated by the command above; see README.md. DO NOT EDIT.'
echo
echo "// +build ${GOARCH},${GOOS}"
echo
go tool cgo -godefs -- "$@" _const.go >_error.out
cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
echo
echo '// Errors'
echo 'const ('
cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/'
echo ')'
echo
echo '// Signals'
echo 'const ('
cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/'
echo ')'
# Run C program to print error and syscall strings.
(
echo -E "
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <ctype.h>
#include <string.h>
#include <signal.h>
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
int errors[] = {
"
for i in $errors
do
echo -E ' '$i,
done
echo -E "
};
int signals[] = {
"
for i in $signals
do
echo -E ' '$i,
done
# Use -E because on some systems bash builtin interprets \n itself.
echo -E '
};
static int
intcmp(const void *a, const void *b)
{
return *(int*)a - *(int*)b;
}
int
main(void)
{
int i, e;
char buf[1024], *p;
printf("\n\n// Error table\n");
printf("var errors = [...]string {\n");
qsort(errors, nelem(errors), sizeof errors[0], intcmp);
for(i=0; i<nelem(errors); i++) {
e = errors[i];
if(i > 0 && errors[i-1] == e)
continue;
strcpy(buf, strerror(e));
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
buf[0] += a - A;
printf("\t%d: \"%s\",\n", e, buf);
}
printf("}\n\n");
printf("\n\n// Signal table\n");
printf("var signals = [...]string {\n");
qsort(signals, nelem(signals), sizeof signals[0], intcmp);
for(i=0; i<nelem(signals); i++) {
e = signals[i];
if(i > 0 && signals[i-1] == e)
continue;
strcpy(buf, strsignal(e));
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
buf[0] += a - A;
// cut trailing : number.
p = strrchr(buf, ":"[0]);
if(p)
*p = '\0';
printf("\t%d: \"%s\",\n", e, buf);
}
printf("}\n\n");
return 0;
}
'
) >_errors.c
$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out

View file

@ -1,88 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
// mkpost processes the output of cgo -godefs to
// modify the generated types. It is used to clean up
// the sys API in an architecture specific manner.
//
// mkpost is run after cgo -godefs; see README.md.
package main
import (
"bytes"
"fmt"
"go/format"
"io/ioutil"
"log"
"os"
"regexp"
)
func main() {
// Get the OS and architecture (using GOARCH_TARGET if it exists)
goos := os.Getenv("GOOS")
goarch := os.Getenv("GOARCH_TARGET")
if goarch == "" {
goarch = os.Getenv("GOARCH")
}
// Check that we are using the new build system if we should be.
if goos == "linux" && goarch != "sparc64" {
if os.Getenv("GOLANG_SYS_BUILD") != "docker" {
os.Stderr.WriteString("In the new build system, mkpost should not be called directly.\n")
os.Stderr.WriteString("See README.md\n")
os.Exit(1)
}
}
b, err := ioutil.ReadAll(os.Stdin)
if err != nil {
log.Fatal(err)
}
// If we have empty Ptrace structs, we should delete them. Only s390x emits
// nonempty Ptrace structs.
ptraceRexexp := regexp.MustCompile(`type Ptrace((Psw|Fpregs|Per) struct {\s*})`)
b = ptraceRexexp.ReplaceAll(b, nil)
// Replace the control_regs union with a blank identifier for now.
controlRegsRegex := regexp.MustCompile(`(Control_regs)\s+\[0\]uint64`)
b = controlRegsRegex.ReplaceAll(b, []byte("_ [0]uint64"))
// Remove fields that are added by glibc
// Note that this is unstable as the identifers are private.
removeFieldsRegex := regexp.MustCompile(`X__glibc\S*`)
b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
// We refuse to export private fields on s390x
if goarch == "s390x" && goos == "linux" {
// Remove cgo padding fields
removeFieldsRegex := regexp.MustCompile(`Pad_cgo_\d+`)
b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
// Remove padding, hidden, or unused fields
removeFieldsRegex = regexp.MustCompile(`X_\S+`)
b = removeFieldsRegex.ReplaceAll(b, []byte("_"))
}
// Remove the first line of warning from cgo
b = b[bytes.IndexByte(b, '\n')+1:]
// Modify the command in the header to include:
// mkpost, our own warning, and a build tag.
replacement := fmt.Sprintf(`$1 | go run mkpost.go
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build %s,%s`, goarch, goos)
cgoCommandRegex := regexp.MustCompile(`(cgo -godefs .*)`)
b = cgoCommandRegex.ReplaceAll(b, []byte(replacement))
// gofmt
b, err = format.Source(b)
if err != nil {
log.Fatal(err)
}
os.Stdout.Write(b)
}

View file

@ -1,328 +0,0 @@
#!/usr/bin/env perl
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# This program reads a file containing function prototypes
# (like syscall_darwin.go) and generates system call bodies.
# The prototypes are marked by lines beginning with "//sys"
# and read like func declarations if //sys is replaced by func, but:
# * The parameter lists must give a name for each argument.
# This includes return parameters.
# * The parameter lists must give a type for each argument:
# the (x, y, z int) shorthand is not allowed.
# * If the return parameter is an error number, it must be named errno.
# A line beginning with //sysnb is like //sys, except that the
# goroutine will not be suspended during the execution of the system
# call. This must only be used for system calls which can never
# block, as otherwise the system call could cause all goroutines to
# hang.
use strict;
my $cmdline = "mksyscall.pl " . join(' ', @ARGV);
my $errors = 0;
my $_32bit = "";
my $plan9 = 0;
my $openbsd = 0;
my $netbsd = 0;
my $dragonfly = 0;
my $arm = 0; # 64-bit value should use (even, odd)-pair
my $tags = ""; # build tags
if($ARGV[0] eq "-b32") {
$_32bit = "big-endian";
shift;
} elsif($ARGV[0] eq "-l32") {
$_32bit = "little-endian";
shift;
}
if($ARGV[0] eq "-plan9") {
$plan9 = 1;
shift;
}
if($ARGV[0] eq "-openbsd") {
$openbsd = 1;
shift;
}
if($ARGV[0] eq "-netbsd") {
$netbsd = 1;
shift;
}
if($ARGV[0] eq "-dragonfly") {
$dragonfly = 1;
shift;
}
if($ARGV[0] eq "-arm") {
$arm = 1;
shift;
}
if($ARGV[0] eq "-tags") {
shift;
$tags = $ARGV[0];
shift;
}
if($ARGV[0] =~ /^-/) {
print STDERR "usage: mksyscall.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
exit 1;
}
# Check that we are using the new build system if we should
if($ENV{'GOOS'} eq "linux" && $ENV{'GOARCH'} ne "sparc64") {
if($ENV{'GOLANG_SYS_BUILD'} ne "docker") {
print STDERR "In the new build system, mksyscall should not be called directly.\n";
print STDERR "See README.md\n";
exit 1;
}
}
sub parseparamlist($) {
my ($list) = @_;
$list =~ s/^\s*//;
$list =~ s/\s*$//;
if($list eq "") {
return ();
}
return split(/\s*,\s*/, $list);
}
sub parseparam($) {
my ($p) = @_;
if($p !~ /^(\S*) (\S*)$/) {
print STDERR "$ARGV:$.: malformed parameter: $p\n";
$errors = 1;
return ("xx", "int");
}
return ($1, $2);
}
my $text = "";
while(<>) {
chomp;
s/\s+/ /g;
s/^\s+//;
s/\s+$//;
my $nonblock = /^\/\/sysnb /;
next if !/^\/\/sys / && !$nonblock;
# Line must be of the form
# func Open(path string, mode int, perm int) (fd int, errno error)
# Split into name, in params, out params.
if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*((?i)SYS_[A-Z0-9_]+))?$/) {
print STDERR "$ARGV:$.: malformed //sys declaration\n";
$errors = 1;
next;
}
my ($func, $in, $out, $sysname) = ($2, $3, $4, $5);
# Split argument lists on comma.
my @in = parseparamlist($in);
my @out = parseparamlist($out);
# Try in vain to keep people from editing this file.
# The theory is that they jump into the middle of the file
# without reading the header.
$text .= "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n";
# Go function header.
my $out_decl = @out ? sprintf(" (%s)", join(', ', @out)) : "";
$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out_decl;
# Check if err return available
my $errvar = "";
foreach my $p (@out) {
my ($name, $type) = parseparam($p);
if($type eq "error") {
$errvar = $name;
last;
}
}
# Prepare arguments to Syscall.
my @args = ();
my $n = 0;
foreach my $p (@in) {
my ($name, $type) = parseparam($p);
if($type =~ /^\*/) {
push @args, "uintptr(unsafe.Pointer($name))";
} elsif($type eq "string" && $errvar ne "") {
$text .= "\tvar _p$n *byte\n";
$text .= "\t_p$n, $errvar = BytePtrFromString($name)\n";
$text .= "\tif $errvar != nil {\n\t\treturn\n\t}\n";
push @args, "uintptr(unsafe.Pointer(_p$n))";
$n++;
} elsif($type eq "string") {
print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
$text .= "\tvar _p$n *byte\n";
$text .= "\t_p$n, _ = BytePtrFromString($name)\n";
push @args, "uintptr(unsafe.Pointer(_p$n))";
$n++;
} elsif($type =~ /^\[\](.*)/) {
# Convert slice into pointer, length.
# Have to be careful not to take address of &a[0] if len == 0:
# pass dummy pointer in that case.
# Used to pass nil, but some OSes or simulators reject write(fd, nil, 0).
$text .= "\tvar _p$n unsafe.Pointer\n";
$text .= "\tif len($name) > 0 {\n\t\t_p$n = unsafe.Pointer(\&${name}[0])\n\t}";
$text .= " else {\n\t\t_p$n = unsafe.Pointer(&_zero)\n\t}";
$text .= "\n";
push @args, "uintptr(_p$n)", "uintptr(len($name))";
$n++;
} elsif($type eq "int64" && ($openbsd || $netbsd)) {
push @args, "0";
if($_32bit eq "big-endian") {
push @args, "uintptr($name>>32)", "uintptr($name)";
} elsif($_32bit eq "little-endian") {
push @args, "uintptr($name)", "uintptr($name>>32)";
} else {
push @args, "uintptr($name)";
}
} elsif($type eq "int64" && $dragonfly) {
if ($func !~ /^extp(read|write)/i) {
push @args, "0";
}
if($_32bit eq "big-endian") {
push @args, "uintptr($name>>32)", "uintptr($name)";
} elsif($_32bit eq "little-endian") {
push @args, "uintptr($name)", "uintptr($name>>32)";
} else {
push @args, "uintptr($name)";
}
} elsif($type eq "int64" && $_32bit ne "") {
if(@args % 2 && $arm) {
# arm abi specifies 64-bit argument uses
# (even, odd) pair
push @args, "0"
}
if($_32bit eq "big-endian") {
push @args, "uintptr($name>>32)", "uintptr($name)";
} else {
push @args, "uintptr($name)", "uintptr($name>>32)";
}
} else {
push @args, "uintptr($name)";
}
}
# Determine which form to use; pad args with zeros.
my $asm = "Syscall";
if ($nonblock) {
$asm = "RawSyscall";
}
if(@args <= 3) {
while(@args < 3) {
push @args, "0";
}
} elsif(@args <= 6) {
$asm .= "6";
while(@args < 6) {
push @args, "0";
}
} elsif(@args <= 9) {
$asm .= "9";
while(@args < 9) {
push @args, "0";
}
} else {
print STDERR "$ARGV:$.: too many arguments to system call\n";
}
# System call number.
if($sysname eq "") {
$sysname = "SYS_$func";
$sysname =~ s/([a-z])([A-Z])/${1}_$2/g; # turn FooBar into Foo_Bar
$sysname =~ y/a-z/A-Z/;
}
# Actual call.
my $args = join(', ', @args);
my $call = "$asm($sysname, $args)";
# Assign return values.
my $body = "";
my @ret = ("_", "_", "_");
my $do_errno = 0;
for(my $i=0; $i<@out; $i++) {
my $p = $out[$i];
my ($name, $type) = parseparam($p);
my $reg = "";
if($name eq "err" && !$plan9) {
$reg = "e1";
$ret[2] = $reg;
$do_errno = 1;
} elsif($name eq "err" && $plan9) {
$ret[0] = "r0";
$ret[2] = "e1";
next;
} else {
$reg = sprintf("r%d", $i);
$ret[$i] = $reg;
}
if($type eq "bool") {
$reg = "$reg != 0";
}
if($type eq "int64" && $_32bit ne "") {
# 64-bit number in r1:r0 or r0:r1.
if($i+2 > @out) {
print STDERR "$ARGV:$.: not enough registers for int64 return\n";
}
if($_32bit eq "big-endian") {
$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i, $i+1);
} else {
$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i+1, $i);
}
$ret[$i] = sprintf("r%d", $i);
$ret[$i+1] = sprintf("r%d", $i+1);
}
if($reg ne "e1" || $plan9) {
$body .= "\t$name = $type($reg)\n";
}
}
if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
$text .= "\t$call\n";
} else {
$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
}
$text .= $body;
if ($plan9 && $ret[2] eq "e1") {
$text .= "\tif int32(r0) == -1 {\n";
$text .= "\t\terr = e1\n";
$text .= "\t}\n";
} elsif ($do_errno) {
$text .= "\tif e1 != 0 {\n";
$text .= "\t\terr = errnoErr(e1)\n";
$text .= "\t}\n";
}
$text .= "\treturn\n";
$text .= "}\n\n";
}
chomp $text;
chomp $text;
if($errors) {
exit 1;
}
print <<EOF;
// $cmdline
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $tags
package unix
import (
"syscall"
"unsafe"
)
var _ syscall.Errno
$text
EOF
exit 0;

View file

@ -1,289 +0,0 @@
#!/usr/bin/env perl
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# This program reads a file containing function prototypes
# (like syscall_solaris.go) and generates system call bodies.
# The prototypes are marked by lines beginning with "//sys"
# and read like func declarations if //sys is replaced by func, but:
# * The parameter lists must give a name for each argument.
# This includes return parameters.
# * The parameter lists must give a type for each argument:
# the (x, y, z int) shorthand is not allowed.
# * If the return parameter is an error number, it must be named err.
# * If go func name needs to be different than its libc name,
# * or the function is not in libc, name could be specified
# * at the end, after "=" sign, like
# //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt
use strict;
my $cmdline = "mksyscall_solaris.pl " . join(' ', @ARGV);
my $errors = 0;
my $_32bit = "";
my $tags = ""; # build tags
binmode STDOUT;
if($ARGV[0] eq "-b32") {
$_32bit = "big-endian";
shift;
} elsif($ARGV[0] eq "-l32") {
$_32bit = "little-endian";
shift;
}
if($ARGV[0] eq "-tags") {
shift;
$tags = $ARGV[0];
shift;
}
if($ARGV[0] =~ /^-/) {
print STDERR "usage: mksyscall_solaris.pl [-b32 | -l32] [-tags x,y] [file ...]\n";
exit 1;
}
sub parseparamlist($) {
my ($list) = @_;
$list =~ s/^\s*//;
$list =~ s/\s*$//;
if($list eq "") {
return ();
}
return split(/\s*,\s*/, $list);
}
sub parseparam($) {
my ($p) = @_;
if($p !~ /^(\S*) (\S*)$/) {
print STDERR "$ARGV:$.: malformed parameter: $p\n";
$errors = 1;
return ("xx", "int");
}
return ($1, $2);
}
my $package = "";
my $text = "";
my $dynimports = "";
my $linknames = "";
my @vars = ();
while(<>) {
chomp;
s/\s+/ /g;
s/^\s+//;
s/\s+$//;
$package = $1 if !$package && /^package (\S+)$/;
my $nonblock = /^\/\/sysnb /;
next if !/^\/\/sys / && !$nonblock;
# Line must be of the form
# func Open(path string, mode int, perm int) (fd int, err error)
# Split into name, in params, out params.
if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$/) {
print STDERR "$ARGV:$.: malformed //sys declaration\n";
$errors = 1;
next;
}
my ($nb, $func, $in, $out, $modname, $sysname) = ($1, $2, $3, $4, $5, $6);
# Split argument lists on comma.
my @in = parseparamlist($in);
my @out = parseparamlist($out);
# So file name.
if($modname eq "") {
$modname = "libc";
}
# System call name.
if($sysname eq "") {
$sysname = "$func";
}
# System call pointer variable name.
my $sysvarname = "proc$sysname";
my $strconvfunc = "BytePtrFromString";
my $strconvtype = "*byte";
$sysname =~ y/A-Z/a-z/; # All libc functions are lowercase.
# Runtime import of function to allow cross-platform builds.
$dynimports .= "//go:cgo_import_dynamic libc_${sysname} ${sysname} \"$modname.so\"\n";
# Link symbol to proc address variable.
$linknames .= "//go:linkname ${sysvarname} libc_${sysname}\n";
# Library proc address variable.
push @vars, $sysvarname;
# Go function header.
$out = join(', ', @out);
if($out ne "") {
$out = " ($out)";
}
if($text ne "") {
$text .= "\n"
}
$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out;
# Check if err return available
my $errvar = "";
foreach my $p (@out) {
my ($name, $type) = parseparam($p);
if($type eq "error") {
$errvar = $name;
last;
}
}
# Prepare arguments to Syscall.
my @args = ();
my $n = 0;
foreach my $p (@in) {
my ($name, $type) = parseparam($p);
if($type =~ /^\*/) {
push @args, "uintptr(unsafe.Pointer($name))";
} elsif($type eq "string" && $errvar ne "") {
$text .= "\tvar _p$n $strconvtype\n";
$text .= "\t_p$n, $errvar = $strconvfunc($name)\n";
$text .= "\tif $errvar != nil {\n\t\treturn\n\t}\n";
push @args, "uintptr(unsafe.Pointer(_p$n))";
$n++;
} elsif($type eq "string") {
print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
$text .= "\tvar _p$n $strconvtype\n";
$text .= "\t_p$n, _ = $strconvfunc($name)\n";
push @args, "uintptr(unsafe.Pointer(_p$n))";
$n++;
} elsif($type =~ /^\[\](.*)/) {
# Convert slice into pointer, length.
# Have to be careful not to take address of &a[0] if len == 0:
# pass nil in that case.
$text .= "\tvar _p$n *$1\n";
$text .= "\tif len($name) > 0 {\n\t\t_p$n = \&$name\[0]\n\t}\n";
push @args, "uintptr(unsafe.Pointer(_p$n))", "uintptr(len($name))";
$n++;
} elsif($type eq "int64" && $_32bit ne "") {
if($_32bit eq "big-endian") {
push @args, "uintptr($name >> 32)", "uintptr($name)";
} else {
push @args, "uintptr($name)", "uintptr($name >> 32)";
}
} elsif($type eq "bool") {
$text .= "\tvar _p$n uint32\n";
$text .= "\tif $name {\n\t\t_p$n = 1\n\t} else {\n\t\t_p$n = 0\n\t}\n";
push @args, "uintptr(_p$n)";
$n++;
} else {
push @args, "uintptr($name)";
}
}
my $nargs = @args;
# Determine which form to use; pad args with zeros.
my $asm = "sysvicall6";
if ($nonblock) {
$asm = "rawSysvicall6";
}
if(@args <= 6) {
while(@args < 6) {
push @args, "0";
}
} else {
print STDERR "$ARGV:$.: too many arguments to system call\n";
}
# Actual call.
my $args = join(', ', @args);
my $call = "$asm(uintptr(unsafe.Pointer(&$sysvarname)), $nargs, $args)";
# Assign return values.
my $body = "";
my $failexpr = "";
my @ret = ("_", "_", "_");
my @pout= ();
my $do_errno = 0;
for(my $i=0; $i<@out; $i++) {
my $p = $out[$i];
my ($name, $type) = parseparam($p);
my $reg = "";
if($name eq "err") {
$reg = "e1";
$ret[2] = $reg;
$do_errno = 1;
} else {
$reg = sprintf("r%d", $i);
$ret[$i] = $reg;
}
if($type eq "bool") {
$reg = "$reg != 0";
}
if($type eq "int64" && $_32bit ne "") {
# 64-bit number in r1:r0 or r0:r1.
if($i+2 > @out) {
print STDERR "$ARGV:$.: not enough registers for int64 return\n";
}
if($_32bit eq "big-endian") {
$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i, $i+1);
} else {
$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i+1, $i);
}
$ret[$i] = sprintf("r%d", $i);
$ret[$i+1] = sprintf("r%d", $i+1);
}
if($reg ne "e1") {
$body .= "\t$name = $type($reg)\n";
}
}
if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
$text .= "\t$call\n";
} else {
$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
}
$text .= $body;
if ($do_errno) {
$text .= "\tif e1 != 0 {\n";
$text .= "\t\terr = e1\n";
$text .= "\t}\n";
}
$text .= "\treturn\n";
$text .= "}\n";
}
if($errors) {
exit 1;
}
print <<EOF;
// $cmdline
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $tags
package $package
import (
"syscall"
"unsafe"
)
EOF
print "import \"golang.org/x/sys/unix\"\n" if $package ne "unix";
my $vardecls = "\t" . join(",\n\t", @vars);
$vardecls .= " syscallFunc";
chomp($_=<<EOF);
$dynimports
$linknames
var (
$vardecls
)
$text
EOF
print $_;
exit 0;

View file

@ -1,264 +0,0 @@
#!/usr/bin/env perl
# Copyright 2011 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
#
# Parse the header files for OpenBSD and generate a Go usable sysctl MIB.
#
# Build a MIB with each entry being an array containing the level, type and
# a hash that will contain additional entries if the current entry is a node.
# We then walk this MIB and create a flattened sysctl name to OID hash.
#
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $debug = 0;
my %ctls = ();
my @headers = qw (
sys/sysctl.h
sys/socket.h
sys/tty.h
sys/malloc.h
sys/mount.h
sys/namei.h
sys/sem.h
sys/shm.h
sys/vmmeter.h
uvm/uvm_param.h
uvm/uvm_swap_encrypt.h
ddb/db_var.h
net/if.h
net/if_pfsync.h
net/pipex.h
netinet/in.h
netinet/icmp_var.h
netinet/igmp_var.h
netinet/ip_ah.h
netinet/ip_carp.h
netinet/ip_divert.h
netinet/ip_esp.h
netinet/ip_ether.h
netinet/ip_gre.h
netinet/ip_ipcomp.h
netinet/ip_ipip.h
netinet/pim_var.h
netinet/tcp_var.h
netinet/udp_var.h
netinet6/in6.h
netinet6/ip6_divert.h
netinet6/pim6_var.h
netinet/icmp6.h
netmpls/mpls.h
);
my @ctls = qw (
kern
vm
fs
net
#debug # Special handling required
hw
#machdep # Arch specific
user
ddb
#vfs # Special handling required
fs.posix
kern.forkstat
kern.intrcnt
kern.malloc
kern.nchstats
kern.seminfo
kern.shminfo
kern.timecounter
kern.tty
kern.watchdog
net.bpf
net.ifq
net.inet
net.inet.ah
net.inet.carp
net.inet.divert
net.inet.esp
net.inet.etherip
net.inet.gre
net.inet.icmp
net.inet.igmp
net.inet.ip
net.inet.ip.ifq
net.inet.ipcomp
net.inet.ipip
net.inet.mobileip
net.inet.pfsync
net.inet.pim
net.inet.tcp
net.inet.udp
net.inet6
net.inet6.divert
net.inet6.ip6
net.inet6.icmp6
net.inet6.pim6
net.inet6.tcp6
net.inet6.udp6
net.mpls
net.mpls.ifq
net.key
net.pflow
net.pfsync
net.pipex
net.rt
vm.swapencrypt
#vfsgenctl # Special handling required
);
# Node name "fixups"
my %ctl_map = (
"ipproto" => "net.inet",
"net.inet.ipproto" => "net.inet",
"net.inet6.ipv6proto" => "net.inet6",
"net.inet6.ipv6" => "net.inet6.ip6",
"net.inet.icmpv6" => "net.inet6.icmp6",
"net.inet6.divert6" => "net.inet6.divert",
"net.inet6.tcp6" => "net.inet.tcp",
"net.inet6.udp6" => "net.inet.udp",
"mpls" => "net.mpls",
"swpenc" => "vm.swapencrypt"
);
# Node mappings
my %node_map = (
"net.inet.ip.ifq" => "net.ifq",
"net.inet.pfsync" => "net.pfsync",
"net.mpls.ifq" => "net.ifq"
);
my $ctlname;
my %mib = ();
my %sysctl = ();
my $node;
sub debug() {
print STDERR "$_[0]\n" if $debug;
}
# Walk the MIB and build a sysctl name to OID mapping.
sub build_sysctl() {
my ($node, $name, $oid) = @_;
my %node = %{$node};
my @oid = @{$oid};
foreach my $key (sort keys %node) {
my @node = @{$node{$key}};
my $nodename = $name.($name ne '' ? '.' : '').$key;
my @nodeoid = (@oid, $node[0]);
if ($node[1] eq 'CTLTYPE_NODE') {
if (exists $node_map{$nodename}) {
$node = \%mib;
$ctlname = $node_map{$nodename};
foreach my $part (split /\./, $ctlname) {
$node = \%{@{$$node{$part}}[2]};
}
} else {
$node = $node[2];
}
&build_sysctl($node, $nodename, \@nodeoid);
} elsif ($node[1] ne '') {
$sysctl{$nodename} = \@nodeoid;
}
}
}
foreach my $ctl (@ctls) {
$ctls{$ctl} = $ctl;
}
# Build MIB
foreach my $header (@headers) {
&debug("Processing $header...");
open HEADER, "/usr/include/$header" ||
print STDERR "Failed to open $header\n";
while (<HEADER>) {
if ($_ =~ /^#define\s+(CTL_NAMES)\s+{/ ||
$_ =~ /^#define\s+(CTL_(.*)_NAMES)\s+{/ ||
$_ =~ /^#define\s+((.*)CTL_NAMES)\s+{/) {
if ($1 eq 'CTL_NAMES') {
# Top level.
$node = \%mib;
} else {
# Node.
my $nodename = lc($2);
if ($header =~ /^netinet\//) {
$ctlname = "net.inet.$nodename";
} elsif ($header =~ /^netinet6\//) {
$ctlname = "net.inet6.$nodename";
} elsif ($header =~ /^net\//) {
$ctlname = "net.$nodename";
} else {
$ctlname = "$nodename";
$ctlname =~ s/^(fs|net|kern)_/$1\./;
}
if (exists $ctl_map{$ctlname}) {
$ctlname = $ctl_map{$ctlname};
}
if (not exists $ctls{$ctlname}) {
&debug("Ignoring $ctlname...");
next;
}
# Walk down from the top of the MIB.
$node = \%mib;
foreach my $part (split /\./, $ctlname) {
if (not exists $$node{$part}) {
&debug("Missing node $part");
$$node{$part} = [ 0, '', {} ];
}
$node = \%{@{$$node{$part}}[2]};
}
}
# Populate current node with entries.
my $i = -1;
while (defined($_) && $_ !~ /^}/) {
$_ = <HEADER>;
$i++ if $_ =~ /{.*}/;
next if $_ !~ /{\s+"(\w+)",\s+(CTLTYPE_[A-Z]+)\s+}/;
$$node{$1} = [ $i, $2, {} ];
}
}
}
close HEADER;
}
&build_sysctl(\%mib, "", []);
print <<EOF;
// mksysctl_openbsd.pl
// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix;
type mibentry struct {
ctlname string
ctloid []_C_int
}
var sysctlMib = []mibentry {
EOF
foreach my $name (sort keys %sysctl) {
my @oid = @{$sysctl{$name}};
print "\t{ \"$name\", []_C_int{ ", join(', ', @oid), " } }, \n";
}
print <<EOF;
}
EOF

View file

@ -1,39 +0,0 @@
#!/usr/bin/env perl
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
#
# Generate system call table for Darwin from sys/syscall.h
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $command = "mksysnum_darwin.pl " . join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const (
EOF
while(<>){
if(/^#define\s+SYS_(\w+)\s+([0-9]+)/){
my $name = $1;
my $num = $2;
$name =~ y/a-z/A-Z/;
print " SYS_$name = $num;"
}
}
print <<EOF;
)
EOF

View file

@ -1,50 +0,0 @@
#!/usr/bin/env perl
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
#
# Generate system call table for DragonFly from master list
# (for example, /usr/src/sys/kern/syscalls.master).
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $command = "mksysnum_dragonfly.pl " . join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const (
EOF
while(<>){
if(/^([0-9]+)\s+STD\s+({ \S+\s+(\w+).*)$/){
my $num = $1;
my $proto = $2;
my $name = "SYS_$3";
$name =~ y/a-z/A-Z/;
# There are multiple entries for enosys and nosys, so comment them out.
if($name =~ /^SYS_E?NOSYS$/){
$name = "// $name";
}
if($name eq 'SYS_SYS_EXIT'){
$name = 'SYS_EXIT';
}
print " $name = $num; // $proto\n";
}
}
print <<EOF;
)
EOF

View file

@ -1,63 +0,0 @@
#!/usr/bin/env perl
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
#
# Generate system call table for FreeBSD from master list
# (for example, /usr/src/sys/kern/syscalls.master).
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $command = "mksysnum_freebsd.pl " . join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const (
EOF
while(<>){
if(/^([0-9]+)\s+\S+\s+STD\s+({ \S+\s+(\w+).*)$/){
my $num = $1;
my $proto = $2;
my $name = "SYS_$3";
$name =~ y/a-z/A-Z/;
# There are multiple entries for enosys and nosys, so comment them out.
if($name =~ /^SYS_E?NOSYS$/){
$name = "// $name";
}
if($name eq 'SYS_SYS_EXIT'){
$name = 'SYS_EXIT';
}
if($name =~ /^SYS_CAP_+/ || $name =~ /^SYS___CAP_+/){
next
}
print " $name = $num; // $proto\n";
# We keep Capsicum syscall numbers for FreeBSD
# 9-STABLE here because we are not sure whether they
# are mature and stable.
if($num == 513){
print " SYS_CAP_NEW = 514 // { int cap_new(int fd, uint64_t rights); }\n";
print " SYS_CAP_GETRIGHTS = 515 // { int cap_getrights(int fd, \\\n";
print " SYS_CAP_ENTER = 516 // { int cap_enter(void); }\n";
print " SYS_CAP_GETMODE = 517 // { int cap_getmode(u_int *modep); }\n";
}
}
}
print <<EOF;
)
EOF

View file

@ -1,58 +0,0 @@
#!/usr/bin/env perl
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
#
# Generate system call table for OpenBSD from master list
# (for example, /usr/src/sys/kern/syscalls.master).
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $command = "mksysnum_netbsd.pl " . join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const (
EOF
my $line = '';
while(<>){
if($line =~ /^(.*)\\$/) {
# Handle continuation
$line = $1;
$_ =~ s/^\s+//;
$line .= $_;
} else {
# New line
$line = $_;
}
next if $line =~ /\\$/;
if($line =~ /^([0-9]+)\s+((STD)|(NOERR))\s+(RUMP\s+)?({\s+\S+\s*\*?\s*\|(\S+)\|(\S*)\|(\w+).*\s+})(\s+(\S+))?$/) {
my $num = $1;
my $proto = $6;
my $compat = $8;
my $name = "$7_$9";
$name = "$7_$11" if $11 ne '';
$name =~ y/a-z/A-Z/;
if($compat eq '' || $compat eq '30' || $compat eq '50') {
print " $name = $num; // $proto\n";
}
}
}
print <<EOF;
)
EOF

View file

@ -1,50 +0,0 @@
#!/usr/bin/env perl
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
#
# Generate system call table for OpenBSD from master list
# (for example, /usr/src/sys/kern/syscalls.master).
use strict;
if($ENV{'GOARCH'} eq "" || $ENV{'GOOS'} eq "") {
print STDERR "GOARCH or GOOS not defined in environment\n";
exit 1;
}
my $command = "mksysnum_openbsd.pl " . join(' ', @ARGV);
print <<EOF;
// $command
// Code generated by the command above; see README.md. DO NOT EDIT.
// +build $ENV{'GOARCH'},$ENV{'GOOS'}
package unix
const (
EOF
while(<>){
if(/^([0-9]+)\s+STD\s+(NOLOCK\s+)?({ \S+\s+\*?(\w+).*)$/){
my $num = $1;
my $proto = $3;
my $name = $4;
$name =~ y/a-z/A-Z/;
# There are multiple entries for enosys and nosys, so comment them out.
if($name =~ /^SYS_E?NOSYS$/){
$name = "// $name";
}
if($name eq 'SYS_SYS_EXIT'){
$name = 'SYS_EXIT';
}
print " $name = $num; // $proto\n";
}
}
print <<EOF;
)
EOF

View file

@ -1,38 +0,0 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build openbsd
// +build 386 amd64 arm
package unix
import (
"syscall"
"unsafe"
)
const (
SYS_PLEDGE = 108
)
// Pledge implements the pledge syscall. For more information see pledge(2).
func Pledge(promises string, paths []string) error {
promisesPtr, err := syscall.BytePtrFromString(promises)
if err != nil {
return err
}
promisesUnsafe, pathsUnsafe := unsafe.Pointer(promisesPtr), unsafe.Pointer(nil)
if paths != nil {
var pathsPtr []*byte
if pathsPtr, err = syscall.SlicePtrFromStrings(paths); err != nil {
return err
}
pathsUnsafe = unsafe.Pointer(&pathsPtr[0])
}
_, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(promisesUnsafe), uintptr(pathsUnsafe), 0)
if e != 0 {
return e
}
return nil
}

30
vendor/golang.org/x/sys/unix/race.go generated vendored
View file

@ -1,30 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin,race linux,race freebsd,race
package unix
import (
"runtime"
"unsafe"
)
const raceenabled = true
func raceAcquire(addr unsafe.Pointer) {
runtime.RaceAcquire(addr)
}
func raceReleaseMerge(addr unsafe.Pointer) {
runtime.RaceReleaseMerge(addr)
}
func raceReadRange(addr unsafe.Pointer, len int) {
runtime.RaceReadRange(addr, len)
}
func raceWriteRange(addr unsafe.Pointer, len int) {
runtime.RaceWriteRange(addr, len)
}

View file

@ -1,25 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin,!race linux,!race freebsd,!race netbsd openbsd solaris dragonfly
package unix
import (
"unsafe"
)
const raceenabled = false
func raceAcquire(addr unsafe.Pointer) {
}
func raceReleaseMerge(addr unsafe.Pointer) {
}
func raceReadRange(addr unsafe.Pointer, len int) {
}
func raceWriteRange(addr unsafe.Pointer, len int) {
}

View file

@ -1,36 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Socket control messages
package unix
import "unsafe"
// UnixCredentials encodes credentials into a socket control message
// for sending to another process. This can be used for
// authentication.
func UnixCredentials(ucred *Ucred) []byte {
b := make([]byte, CmsgSpace(SizeofUcred))
h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
h.Level = SOL_SOCKET
h.Type = SCM_CREDENTIALS
h.SetLen(CmsgLen(SizeofUcred))
*((*Ucred)(cmsgData(h))) = *ucred
return b
}
// ParseUnixCredentials decodes a socket control message that contains
// credentials in a Ucred structure. To receive such a message, the
// SO_PASSCRED option must be enabled on the socket.
func ParseUnixCredentials(m *SocketControlMessage) (*Ucred, error) {
if m.Header.Level != SOL_SOCKET {
return nil, EINVAL
}
if m.Header.Type != SCM_CREDENTIALS {
return nil, EINVAL
}
ucred := *(*Ucred)(unsafe.Pointer(&m.Data[0]))
return &ucred, nil
}

View file

@ -1,104 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
// Socket control messages
package unix
import "unsafe"
// Round the length of a raw sockaddr up to align it properly.
func cmsgAlignOf(salen int) int {
salign := sizeofPtr
// NOTE: It seems like 64-bit Darwin, DragonFly BSD and
// Solaris kernels still require 32-bit aligned access to
// network subsystem.
if darwin64Bit || dragonfly64Bit || solaris64Bit {
salign = 4
}
return (salen + salign - 1) & ^(salign - 1)
}
// CmsgLen returns the value to store in the Len field of the Cmsghdr
// structure, taking into account any necessary alignment.
func CmsgLen(datalen int) int {
return cmsgAlignOf(SizeofCmsghdr) + datalen
}
// CmsgSpace returns the number of bytes an ancillary element with
// payload of the passed data length occupies.
func CmsgSpace(datalen int) int {
return cmsgAlignOf(SizeofCmsghdr) + cmsgAlignOf(datalen)
}
func cmsgData(h *Cmsghdr) unsafe.Pointer {
return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)))
}
// SocketControlMessage represents a socket control message.
type SocketControlMessage struct {
Header Cmsghdr
Data []byte
}
// ParseSocketControlMessage parses b as an array of socket control
// messages.
func ParseSocketControlMessage(b []byte) ([]SocketControlMessage, error) {
var msgs []SocketControlMessage
i := 0
for i+CmsgLen(0) <= len(b) {
h, dbuf, err := socketControlMessageHeaderAndData(b[i:])
if err != nil {
return nil, err
}
m := SocketControlMessage{Header: *h, Data: dbuf}
msgs = append(msgs, m)
i += cmsgAlignOf(int(h.Len))
}
return msgs, nil
}
func socketControlMessageHeaderAndData(b []byte) (*Cmsghdr, []byte, error) {
h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
if h.Len < SizeofCmsghdr || uint64(h.Len) > uint64(len(b)) {
return nil, nil, EINVAL
}
return h, b[cmsgAlignOf(SizeofCmsghdr):h.Len], nil
}
// UnixRights encodes a set of open file descriptors into a socket
// control message for sending to another process.
func UnixRights(fds ...int) []byte {
datalen := len(fds) * 4
b := make([]byte, CmsgSpace(datalen))
h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
h.Level = SOL_SOCKET
h.Type = SCM_RIGHTS
h.SetLen(CmsgLen(datalen))
data := cmsgData(h)
for _, fd := range fds {
*(*int32)(data) = int32(fd)
data = unsafe.Pointer(uintptr(data) + 4)
}
return b
}
// ParseUnixRights decodes a socket control message that contains an
// integer array of open file descriptors from another process.
func ParseUnixRights(m *SocketControlMessage) ([]int, error) {
if m.Header.Level != SOL_SOCKET {
return nil, EINVAL
}
if m.Header.Type != SCM_RIGHTS {
return nil, EINVAL
}
fds := make([]int, len(m.Data)>>2)
for i, j := 0, 0; i < len(m.Data); i += 4 {
fds[j] = int(*(*int32)(unsafe.Pointer(&m.Data[i])))
j++
}
return fds, nil
}

26
vendor/golang.org/x/sys/unix/str.go generated vendored
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@ -1,26 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package unix
func itoa(val int) string { // do it here rather than with fmt to avoid dependency
if val < 0 {
return "-" + uitoa(uint(-val))
}
return uitoa(uint(val))
}
func uitoa(val uint) string {
var buf [32]byte // big enough for int64
i := len(buf) - 1
for val >= 10 {
buf[i] = byte(val%10 + '0')
i--
val /= 10
}
buf[i] = byte(val + '0')
return string(buf[i:])
}

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@ -1,69 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
// Package unix contains an interface to the low-level operating system
// primitives. OS details vary depending on the underlying system, and
// by default, godoc will display OS-specific documentation for the current
// system. If you want godoc to display OS documentation for another
// system, set $GOOS and $GOARCH to the desired system. For example, if
// you want to view documentation for freebsd/arm on linux/amd64, set $GOOS
// to freebsd and $GOARCH to arm.
// The primary use of this package is inside other packages that provide a more
// portable interface to the system, such as "os", "time" and "net". Use
// those packages rather than this one if you can.
// For details of the functions and data types in this package consult
// the manuals for the appropriate operating system.
// These calls return err == nil to indicate success; otherwise
// err represents an operating system error describing the failure and
// holds a value of type syscall.Errno.
package unix
// ByteSliceFromString returns a NUL-terminated slice of bytes
// containing the text of s. If s contains a NUL byte at any
// location, it returns (nil, EINVAL).
func ByteSliceFromString(s string) ([]byte, error) {
for i := 0; i < len(s); i++ {
if s[i] == 0 {
return nil, EINVAL
}
}
a := make([]byte, len(s)+1)
copy(a, s)
return a, nil
}
// BytePtrFromString returns a pointer to a NUL-terminated array of
// bytes containing the text of s. If s contains a NUL byte at any
// location, it returns (nil, EINVAL).
func BytePtrFromString(s string) (*byte, error) {
a, err := ByteSliceFromString(s)
if err != nil {
return nil, err
}
return &a[0], nil
}
// Single-word zero for use when we need a valid pointer to 0 bytes.
// See mkunix.pl.
var _zero uintptr
func (ts *Timespec) Unix() (sec int64, nsec int64) {
return int64(ts.Sec), int64(ts.Nsec)
}
func (tv *Timeval) Unix() (sec int64, nsec int64) {
return int64(tv.Sec), int64(tv.Usec) * 1000
}
func (ts *Timespec) Nano() int64 {
return int64(ts.Sec)*1e9 + int64(ts.Nsec)
}
func (tv *Timeval) Nano() int64 {
return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000
}
func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 }

View file

@ -1,614 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd netbsd openbsd
// BSD system call wrappers shared by *BSD based systems
// including OS X (Darwin) and FreeBSD. Like the other
// syscall_*.go files it is compiled as Go code but also
// used as input to mksyscall which parses the //sys
// lines and generates system call stubs.
package unix
import (
"runtime"
"syscall"
"unsafe"
)
/*
* Wrapped
*/
//sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error)
//sysnb setgroups(ngid int, gid *_Gid_t) (err error)
func Getgroups() (gids []int, err error) {
n, err := getgroups(0, nil)
if err != nil {
return nil, err
}
if n == 0 {
return nil, nil
}
// Sanity check group count. Max is 16 on BSD.
if n < 0 || n > 1000 {
return nil, EINVAL
}
a := make([]_Gid_t, n)
n, err = getgroups(n, &a[0])
if err != nil {
return nil, err
}
gids = make([]int, n)
for i, v := range a[0:n] {
gids[i] = int(v)
}
return
}
func Setgroups(gids []int) (err error) {
if len(gids) == 0 {
return setgroups(0, nil)
}
a := make([]_Gid_t, len(gids))
for i, v := range gids {
a[i] = _Gid_t(v)
}
return setgroups(len(a), &a[0])
}
func ReadDirent(fd int, buf []byte) (n int, err error) {
// Final argument is (basep *uintptr) and the syscall doesn't take nil.
// 64 bits should be enough. (32 bits isn't even on 386). Since the
// actual system call is getdirentries64, 64 is a good guess.
// TODO(rsc): Can we use a single global basep for all calls?
var base = (*uintptr)(unsafe.Pointer(new(uint64)))
return Getdirentries(fd, buf, base)
}
// Wait status is 7 bits at bottom, either 0 (exited),
// 0x7F (stopped), or a signal number that caused an exit.
// The 0x80 bit is whether there was a core dump.
// An extra number (exit code, signal causing a stop)
// is in the high bits.
type WaitStatus uint32
const (
mask = 0x7F
core = 0x80
shift = 8
exited = 0
stopped = 0x7F
)
func (w WaitStatus) Exited() bool { return w&mask == exited }
func (w WaitStatus) ExitStatus() int {
if w&mask != exited {
return -1
}
return int(w >> shift)
}
func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
func (w WaitStatus) Signal() syscall.Signal {
sig := syscall.Signal(w & mask)
if sig == stopped || sig == 0 {
return -1
}
return sig
}
func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP }
func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
func (w WaitStatus) StopSignal() syscall.Signal {
if !w.Stopped() {
return -1
}
return syscall.Signal(w>>shift) & 0xFF
}
func (w WaitStatus) TrapCause() int { return -1 }
//sys wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, err error)
func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
var status _C_int
wpid, err = wait4(pid, &status, options, rusage)
if wstatus != nil {
*wstatus = WaitStatus(status)
}
return
}
//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
//sysnb socket(domain int, typ int, proto int) (fd int, err error)
//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
//sys Shutdown(s int, how int) (err error)
func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
if sa.Port < 0 || sa.Port > 0xFFFF {
return nil, 0, EINVAL
}
sa.raw.Len = SizeofSockaddrInet4
sa.raw.Family = AF_INET
p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
p[0] = byte(sa.Port >> 8)
p[1] = byte(sa.Port)
for i := 0; i < len(sa.Addr); i++ {
sa.raw.Addr[i] = sa.Addr[i]
}
return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
}
func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
if sa.Port < 0 || sa.Port > 0xFFFF {
return nil, 0, EINVAL
}
sa.raw.Len = SizeofSockaddrInet6
sa.raw.Family = AF_INET6
p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
p[0] = byte(sa.Port >> 8)
p[1] = byte(sa.Port)
sa.raw.Scope_id = sa.ZoneId
for i := 0; i < len(sa.Addr); i++ {
sa.raw.Addr[i] = sa.Addr[i]
}
return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
}
func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
name := sa.Name
n := len(name)
if n >= len(sa.raw.Path) || n == 0 {
return nil, 0, EINVAL
}
sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL
sa.raw.Family = AF_UNIX
for i := 0; i < n; i++ {
sa.raw.Path[i] = int8(name[i])
}
return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
}
func (sa *SockaddrDatalink) sockaddr() (unsafe.Pointer, _Socklen, error) {
if sa.Index == 0 {
return nil, 0, EINVAL
}
sa.raw.Len = sa.Len
sa.raw.Family = AF_LINK
sa.raw.Index = sa.Index
sa.raw.Type = sa.Type
sa.raw.Nlen = sa.Nlen
sa.raw.Alen = sa.Alen
sa.raw.Slen = sa.Slen
for i := 0; i < len(sa.raw.Data); i++ {
sa.raw.Data[i] = sa.Data[i]
}
return unsafe.Pointer(&sa.raw), SizeofSockaddrDatalink, nil
}
func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, error) {
switch rsa.Addr.Family {
case AF_LINK:
pp := (*RawSockaddrDatalink)(unsafe.Pointer(rsa))
sa := new(SockaddrDatalink)
sa.Len = pp.Len
sa.Family = pp.Family
sa.Index = pp.Index
sa.Type = pp.Type
sa.Nlen = pp.Nlen
sa.Alen = pp.Alen
sa.Slen = pp.Slen
for i := 0; i < len(sa.Data); i++ {
sa.Data[i] = pp.Data[i]
}
return sa, nil
case AF_UNIX:
pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
if pp.Len < 2 || pp.Len > SizeofSockaddrUnix {
return nil, EINVAL
}
sa := new(SockaddrUnix)
// Some BSDs include the trailing NUL in the length, whereas
// others do not. Work around this by subtracting the leading
// family and len. The path is then scanned to see if a NUL
// terminator still exists within the length.
n := int(pp.Len) - 2 // subtract leading Family, Len
for i := 0; i < n; i++ {
if pp.Path[i] == 0 {
// found early NUL; assume Len included the NUL
// or was overestimating.
n = i
break
}
}
bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
sa.Name = string(bytes)
return sa, nil
case AF_INET:
pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
sa := new(SockaddrInet4)
p := (*[2]byte)(unsafe.Pointer(&pp.Port))
sa.Port = int(p[0])<<8 + int(p[1])
for i := 0; i < len(sa.Addr); i++ {
sa.Addr[i] = pp.Addr[i]
}
return sa, nil
case AF_INET6:
pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
sa := new(SockaddrInet6)
p := (*[2]byte)(unsafe.Pointer(&pp.Port))
sa.Port = int(p[0])<<8 + int(p[1])
sa.ZoneId = pp.Scope_id
for i := 0; i < len(sa.Addr); i++ {
sa.Addr[i] = pp.Addr[i]
}
return sa, nil
}
return nil, EAFNOSUPPORT
}
func Accept(fd int) (nfd int, sa Sockaddr, err error) {
var rsa RawSockaddrAny
var len _Socklen = SizeofSockaddrAny
nfd, err = accept(fd, &rsa, &len)
if err != nil {
return
}
if runtime.GOOS == "darwin" && len == 0 {
// Accepted socket has no address.
// This is likely due to a bug in xnu kernels,
// where instead of ECONNABORTED error socket
// is accepted, but has no address.
Close(nfd)
return 0, nil, ECONNABORTED
}
sa, err = anyToSockaddr(&rsa)
if err != nil {
Close(nfd)
nfd = 0
}
return
}
func Getsockname(fd int) (sa Sockaddr, err error) {
var rsa RawSockaddrAny
var len _Socklen = SizeofSockaddrAny
if err = getsockname(fd, &rsa, &len); err != nil {
return
}
// TODO(jsing): DragonFly has a "bug" (see issue 3349), which should be
// reported upstream.
if runtime.GOOS == "dragonfly" && rsa.Addr.Family == AF_UNSPEC && rsa.Addr.Len == 0 {
rsa.Addr.Family = AF_UNIX
rsa.Addr.Len = SizeofSockaddrUnix
}
return anyToSockaddr(&rsa)
}
//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
func GetsockoptByte(fd, level, opt int) (value byte, err error) {
var n byte
vallen := _Socklen(1)
err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen)
return n, err
}
func GetsockoptInet4Addr(fd, level, opt int) (value [4]byte, err error) {
vallen := _Socklen(4)
err = getsockopt(fd, level, opt, unsafe.Pointer(&value[0]), &vallen)
return value, err
}
func GetsockoptIPMreq(fd, level, opt int) (*IPMreq, error) {
var value IPMreq
vallen := _Socklen(SizeofIPMreq)
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
return &value, err
}
func GetsockoptIPv6Mreq(fd, level, opt int) (*IPv6Mreq, error) {
var value IPv6Mreq
vallen := _Socklen(SizeofIPv6Mreq)
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
return &value, err
}
func GetsockoptIPv6MTUInfo(fd, level, opt int) (*IPv6MTUInfo, error) {
var value IPv6MTUInfo
vallen := _Socklen(SizeofIPv6MTUInfo)
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
return &value, err
}
func GetsockoptICMPv6Filter(fd, level, opt int) (*ICMPv6Filter, error) {
var value ICMPv6Filter
vallen := _Socklen(SizeofICMPv6Filter)
err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
return &value, err
}
//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, err error) {
var msg Msghdr
var rsa RawSockaddrAny
msg.Name = (*byte)(unsafe.Pointer(&rsa))
msg.Namelen = uint32(SizeofSockaddrAny)
var iov Iovec
if len(p) > 0 {
iov.Base = (*byte)(unsafe.Pointer(&p[0]))
iov.SetLen(len(p))
}
var dummy byte
if len(oob) > 0 {
// receive at least one normal byte
if len(p) == 0 {
iov.Base = &dummy
iov.SetLen(1)
}
msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
msg.SetControllen(len(oob))
}
msg.Iov = &iov
msg.Iovlen = 1
if n, err = recvmsg(fd, &msg, flags); err != nil {
return
}
oobn = int(msg.Controllen)
recvflags = int(msg.Flags)
// source address is only specified if the socket is unconnected
if rsa.Addr.Family != AF_UNSPEC {
from, err = anyToSockaddr(&rsa)
}
return
}
//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
_, err = SendmsgN(fd, p, oob, to, flags)
return
}
func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
var ptr unsafe.Pointer
var salen _Socklen
if to != nil {
ptr, salen, err = to.sockaddr()
if err != nil {
return 0, err
}
}
var msg Msghdr
msg.Name = (*byte)(unsafe.Pointer(ptr))
msg.Namelen = uint32(salen)
var iov Iovec
if len(p) > 0 {
iov.Base = (*byte)(unsafe.Pointer(&p[0]))
iov.SetLen(len(p))
}
var dummy byte
if len(oob) > 0 {
// send at least one normal byte
if len(p) == 0 {
iov.Base = &dummy
iov.SetLen(1)
}
msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
msg.SetControllen(len(oob))
}
msg.Iov = &iov
msg.Iovlen = 1
if n, err = sendmsg(fd, &msg, flags); err != nil {
return 0, err
}
if len(oob) > 0 && len(p) == 0 {
n = 0
}
return n, nil
}
//sys kevent(kq int, change unsafe.Pointer, nchange int, event unsafe.Pointer, nevent int, timeout *Timespec) (n int, err error)
func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, err error) {
var change, event unsafe.Pointer
if len(changes) > 0 {
change = unsafe.Pointer(&changes[0])
}
if len(events) > 0 {
event = unsafe.Pointer(&events[0])
}
return kevent(kq, change, len(changes), event, len(events), timeout)
}
//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
// sysctlmib translates name to mib number and appends any additional args.
func sysctlmib(name string, args ...int) ([]_C_int, error) {
// Translate name to mib number.
mib, err := nametomib(name)
if err != nil {
return nil, err
}
for _, a := range args {
mib = append(mib, _C_int(a))
}
return mib, nil
}
func Sysctl(name string) (string, error) {
return SysctlArgs(name)
}
func SysctlArgs(name string, args ...int) (string, error) {
buf, err := SysctlRaw(name, args...)
if err != nil {
return "", err
}
n := len(buf)
// Throw away terminating NUL.
if n > 0 && buf[n-1] == '\x00' {
n--
}
return string(buf[0:n]), nil
}
func SysctlUint32(name string) (uint32, error) {
return SysctlUint32Args(name)
}
func SysctlUint32Args(name string, args ...int) (uint32, error) {
mib, err := sysctlmib(name, args...)
if err != nil {
return 0, err
}
n := uintptr(4)
buf := make([]byte, 4)
if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
return 0, err
}
if n != 4 {
return 0, EIO
}
return *(*uint32)(unsafe.Pointer(&buf[0])), nil
}
func SysctlUint64(name string, args ...int) (uint64, error) {
mib, err := sysctlmib(name, args...)
if err != nil {
return 0, err
}
n := uintptr(8)
buf := make([]byte, 8)
if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
return 0, err
}
if n != 8 {
return 0, EIO
}
return *(*uint64)(unsafe.Pointer(&buf[0])), nil
}
func SysctlRaw(name string, args ...int) ([]byte, error) {
mib, err := sysctlmib(name, args...)
if err != nil {
return nil, err
}
// Find size.
n := uintptr(0)
if err := sysctl(mib, nil, &n, nil, 0); err != nil {
return nil, err
}
if n == 0 {
return nil, nil
}
// Read into buffer of that size.
buf := make([]byte, n)
if err := sysctl(mib, &buf[0], &n, nil, 0); err != nil {
return nil, err
}
// The actual call may return less than the original reported required
// size so ensure we deal with that.
return buf[:n], nil
}
//sys utimes(path string, timeval *[2]Timeval) (err error)
func Utimes(path string, tv []Timeval) error {
if tv == nil {
return utimes(path, nil)
}
if len(tv) != 2 {
return EINVAL
}
return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
}
func UtimesNano(path string, ts []Timespec) error {
if ts == nil {
return utimes(path, nil)
}
// TODO: The BSDs can do utimensat with SYS_UTIMENSAT but it
// isn't supported by darwin so this uses utimes instead
if len(ts) != 2 {
return EINVAL
}
// Not as efficient as it could be because Timespec and
// Timeval have different types in the different OSes
tv := [2]Timeval{
NsecToTimeval(TimespecToNsec(ts[0])),
NsecToTimeval(TimespecToNsec(ts[1])),
}
return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
}
//sys futimes(fd int, timeval *[2]Timeval) (err error)
func Futimes(fd int, tv []Timeval) error {
if tv == nil {
return futimes(fd, nil)
}
if len(tv) != 2 {
return EINVAL
}
return futimes(fd, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
}
//sys fcntl(fd int, cmd int, arg int) (val int, err error)
// TODO: wrap
// Acct(name nil-string) (err error)
// Gethostuuid(uuid *byte, timeout *Timespec) (err error)
// Madvise(addr *byte, len int, behav int) (err error)
// Mprotect(addr *byte, len int, prot int) (err error)
// Msync(addr *byte, len int, flags int) (err error)
// Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, err error)
var mapper = &mmapper{
active: make(map[*byte][]byte),
mmap: mmap,
munmap: munmap,
}
func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
return mapper.Mmap(fd, offset, length, prot, flags)
}
func Munmap(b []byte) (err error) {
return mapper.Munmap(b)
}

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@ -1,493 +0,0 @@
// Copyright 2009,2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Darwin system calls.
// This file is compiled as ordinary Go code,
// but it is also input to mksyscall,
// which parses the //sys lines and generates system call stubs.
// Note that sometimes we use a lowercase //sys name and wrap
// it in our own nicer implementation, either here or in
// syscall_bsd.go or syscall_unix.go.
package unix
import (
errorspkg "errors"
"syscall"
"unsafe"
)
const ImplementsGetwd = true
func Getwd() (string, error) {
buf := make([]byte, 2048)
attrs, err := getAttrList(".", attrList{CommonAttr: attrCmnFullpath}, buf, 0)
if err == nil && len(attrs) == 1 && len(attrs[0]) >= 2 {
wd := string(attrs[0])
// Sanity check that it's an absolute path and ends
// in a null byte, which we then strip.
if wd[0] == '/' && wd[len(wd)-1] == 0 {
return wd[:len(wd)-1], nil
}
}
// If pkg/os/getwd.go gets ENOTSUP, it will fall back to the
// slow algorithm.
return "", ENOTSUP
}
type SockaddrDatalink struct {
Len uint8
Family uint8
Index uint16
Type uint8
Nlen uint8
Alen uint8
Slen uint8
Data [12]int8
raw RawSockaddrDatalink
}
// Translate "kern.hostname" to []_C_int{0,1,2,3}.
func nametomib(name string) (mib []_C_int, err error) {
const siz = unsafe.Sizeof(mib[0])
// NOTE(rsc): It seems strange to set the buffer to have
// size CTL_MAXNAME+2 but use only CTL_MAXNAME
// as the size. I don't know why the +2 is here, but the
// kernel uses +2 for its own implementation of this function.
// I am scared that if we don't include the +2 here, the kernel
// will silently write 2 words farther than we specify
// and we'll get memory corruption.
var buf [CTL_MAXNAME + 2]_C_int
n := uintptr(CTL_MAXNAME) * siz
p := (*byte)(unsafe.Pointer(&buf[0]))
bytes, err := ByteSliceFromString(name)
if err != nil {
return nil, err
}
// Magic sysctl: "setting" 0.3 to a string name
// lets you read back the array of integers form.
if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil {
return nil, err
}
return buf[0 : n/siz], nil
}
func direntIno(buf []byte) (uint64, bool) {
return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino))
}
func direntReclen(buf []byte) (uint64, bool) {
return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
}
func direntNamlen(buf []byte) (uint64, bool) {
return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen))
}
//sys ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) }
func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) }
const (
attrBitMapCount = 5
attrCmnFullpath = 0x08000000
)
type attrList struct {
bitmapCount uint16
_ uint16
CommonAttr uint32
VolAttr uint32
DirAttr uint32
FileAttr uint32
Forkattr uint32
}
func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) (attrs [][]byte, err error) {
if len(attrBuf) < 4 {
return nil, errorspkg.New("attrBuf too small")
}
attrList.bitmapCount = attrBitMapCount
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return nil, err
}
_, _, e1 := Syscall6(
SYS_GETATTRLIST,
uintptr(unsafe.Pointer(_p0)),
uintptr(unsafe.Pointer(&attrList)),
uintptr(unsafe.Pointer(&attrBuf[0])),
uintptr(len(attrBuf)),
uintptr(options),
0,
)
if e1 != 0 {
return nil, e1
}
size := *(*uint32)(unsafe.Pointer(&attrBuf[0]))
// dat is the section of attrBuf that contains valid data,
// without the 4 byte length header. All attribute offsets
// are relative to dat.
dat := attrBuf
if int(size) < len(attrBuf) {
dat = dat[:size]
}
dat = dat[4:] // remove length prefix
for i := uint32(0); int(i) < len(dat); {
header := dat[i:]
if len(header) < 8 {
return attrs, errorspkg.New("truncated attribute header")
}
datOff := *(*int32)(unsafe.Pointer(&header[0]))
attrLen := *(*uint32)(unsafe.Pointer(&header[4]))
if datOff < 0 || uint32(datOff)+attrLen > uint32(len(dat)) {
return attrs, errorspkg.New("truncated results; attrBuf too small")
}
end := uint32(datOff) + attrLen
attrs = append(attrs, dat[datOff:end])
i = end
if r := i % 4; r != 0 {
i += (4 - r)
}
}
return
}
//sysnb pipe() (r int, w int, err error)
func Pipe(p []int) (err error) {
if len(p) != 2 {
return EINVAL
}
p[0], p[1], err = pipe()
return
}
func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
var _p0 unsafe.Pointer
var bufsize uintptr
if len(buf) > 0 {
_p0 = unsafe.Pointer(&buf[0])
bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
}
r0, _, e1 := Syscall(SYS_GETFSSTAT64, uintptr(_p0), bufsize, uintptr(flags))
n = int(r0)
if e1 != 0 {
err = e1
}
return
}
/*
* Wrapped
*/
//sys kill(pid int, signum int, posix int) (err error)
func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(signum), 1) }
/*
* Exposed directly
*/
//sys Access(path string, mode uint32) (err error)
//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
//sys Chdir(path string) (err error)
//sys Chflags(path string, flags int) (err error)
//sys Chmod(path string, mode uint32) (err error)
//sys Chown(path string, uid int, gid int) (err error)
//sys Chroot(path string) (err error)
//sys Close(fd int) (err error)
//sys Dup(fd int) (nfd int, err error)
//sys Dup2(from int, to int) (err error)
//sys Exchangedata(path1 string, path2 string, options int) (err error)
//sys Exit(code int)
//sys Fchdir(fd int) (err error)
//sys Fchflags(fd int, flags int) (err error)
//sys Fchmod(fd int, mode uint32) (err error)
//sys Fchown(fd int, uid int, gid int) (err error)
//sys Flock(fd int, how int) (err error)
//sys Fpathconf(fd int, name int) (val int, err error)
//sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
//sys Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_FSTATFS64
//sys Fsync(fd int) (err error)
//sys Ftruncate(fd int, length int64) (err error)
//sys Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) = SYS_GETDIRENTRIES64
//sys Getdtablesize() (size int)
//sysnb Getegid() (egid int)
//sysnb Geteuid() (uid int)
//sysnb Getgid() (gid int)
//sysnb Getpgid(pid int) (pgid int, err error)
//sysnb Getpgrp() (pgrp int)
//sysnb Getpid() (pid int)
//sysnb Getppid() (ppid int)
//sys Getpriority(which int, who int) (prio int, err error)
//sysnb Getrlimit(which int, lim *Rlimit) (err error)
//sysnb Getrusage(who int, rusage *Rusage) (err error)
//sysnb Getsid(pid int) (sid int, err error)
//sysnb Getuid() (uid int)
//sysnb Issetugid() (tainted bool)
//sys Kqueue() (fd int, err error)
//sys Lchown(path string, uid int, gid int) (err error)
//sys Link(path string, link string) (err error)
//sys Listen(s int, backlog int) (err error)
//sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
//sys Mkdir(path string, mode uint32) (err error)
//sys Mkfifo(path string, mode uint32) (err error)
//sys Mknod(path string, mode uint32, dev int) (err error)
//sys Mlock(b []byte) (err error)
//sys Mlockall(flags int) (err error)
//sys Mprotect(b []byte, prot int) (err error)
//sys Munlock(b []byte) (err error)
//sys Munlockall() (err error)
//sys Open(path string, mode int, perm uint32) (fd int, err error)
//sys Pathconf(path string, name int) (val int, err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys read(fd int, p []byte) (n int, err error)
//sys Readlink(path string, buf []byte) (n int, err error)
//sys Rename(from string, to string) (err error)
//sys Revoke(path string) (err error)
//sys Rmdir(path string) (err error)
//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
//sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error)
//sys Setegid(egid int) (err error)
//sysnb Seteuid(euid int) (err error)
//sysnb Setgid(gid int) (err error)
//sys Setlogin(name string) (err error)
//sysnb Setpgid(pid int, pgid int) (err error)
//sys Setpriority(which int, who int, prio int) (err error)
//sys Setprivexec(flag int) (err error)
//sysnb Setregid(rgid int, egid int) (err error)
//sysnb Setreuid(ruid int, euid int) (err error)
//sysnb Setrlimit(which int, lim *Rlimit) (err error)
//sysnb Setsid() (pid int, err error)
//sysnb Settimeofday(tp *Timeval) (err error)
//sysnb Setuid(uid int) (err error)
//sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
//sys Statfs(path string, stat *Statfs_t) (err error) = SYS_STATFS64
//sys Symlink(path string, link string) (err error)
//sys Sync() (err error)
//sys Truncate(path string, length int64) (err error)
//sys Umask(newmask int) (oldmask int)
//sys Undelete(path string) (err error)
//sys Unlink(path string) (err error)
//sys Unmount(path string, flags int) (err error)
//sys write(fd int, p []byte) (n int, err error)
//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
//sys munmap(addr uintptr, length uintptr) (err error)
//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
/*
* Unimplemented
*/
// Profil
// Sigaction
// Sigprocmask
// Getlogin
// Sigpending
// Sigaltstack
// Ioctl
// Reboot
// Execve
// Vfork
// Sbrk
// Sstk
// Ovadvise
// Mincore
// Setitimer
// Swapon
// Select
// Sigsuspend
// Readv
// Writev
// Nfssvc
// Getfh
// Quotactl
// Mount
// Csops
// Waitid
// Add_profil
// Kdebug_trace
// Sigreturn
// Mmap
// Mlock
// Munlock
// Atsocket
// Kqueue_from_portset_np
// Kqueue_portset
// Getattrlist
// Setattrlist
// Getdirentriesattr
// Searchfs
// Delete
// Copyfile
// Poll
// Watchevent
// Waitevent
// Modwatch
// Getxattr
// Fgetxattr
// Setxattr
// Fsetxattr
// Removexattr
// Fremovexattr
// Listxattr
// Flistxattr
// Fsctl
// Initgroups
// Posix_spawn
// Nfsclnt
// Fhopen
// Minherit
// Semsys
// Msgsys
// Shmsys
// Semctl
// Semget
// Semop
// Msgctl
// Msgget
// Msgsnd
// Msgrcv
// Shmat
// Shmctl
// Shmdt
// Shmget
// Shm_open
// Shm_unlink
// Sem_open
// Sem_close
// Sem_unlink
// Sem_wait
// Sem_trywait
// Sem_post
// Sem_getvalue
// Sem_init
// Sem_destroy
// Open_extended
// Umask_extended
// Stat_extended
// Lstat_extended
// Fstat_extended
// Chmod_extended
// Fchmod_extended
// Access_extended
// Settid
// Gettid
// Setsgroups
// Getsgroups
// Setwgroups
// Getwgroups
// Mkfifo_extended
// Mkdir_extended
// Identitysvc
// Shared_region_check_np
// Shared_region_map_np
// __pthread_mutex_destroy
// __pthread_mutex_init
// __pthread_mutex_lock
// __pthread_mutex_trylock
// __pthread_mutex_unlock
// __pthread_cond_init
// __pthread_cond_destroy
// __pthread_cond_broadcast
// __pthread_cond_signal
// Setsid_with_pid
// __pthread_cond_timedwait
// Aio_fsync
// Aio_return
// Aio_suspend
// Aio_cancel
// Aio_error
// Aio_read
// Aio_write
// Lio_listio
// __pthread_cond_wait
// Iopolicysys
// Mlockall
// Munlockall
// __pthread_kill
// __pthread_sigmask
// __sigwait
// __disable_threadsignal
// __pthread_markcancel
// __pthread_canceled
// __semwait_signal
// Proc_info
// sendfile
// Stat64_extended
// Lstat64_extended
// Fstat64_extended
// __pthread_chdir
// __pthread_fchdir
// Audit
// Auditon
// Getauid
// Setauid
// Getaudit
// Setaudit
// Getaudit_addr
// Setaudit_addr
// Auditctl
// Bsdthread_create
// Bsdthread_terminate
// Stack_snapshot
// Bsdthread_register
// Workq_open
// Workq_ops
// __mac_execve
// __mac_syscall
// __mac_get_file
// __mac_set_file
// __mac_get_link
// __mac_set_link
// __mac_get_proc
// __mac_set_proc
// __mac_get_fd
// __mac_set_fd
// __mac_get_pid
// __mac_get_lcid
// __mac_get_lctx
// __mac_set_lctx
// Setlcid
// Read_nocancel
// Write_nocancel
// Open_nocancel
// Close_nocancel
// Wait4_nocancel
// Recvmsg_nocancel
// Sendmsg_nocancel
// Recvfrom_nocancel
// Accept_nocancel
// Msync_nocancel
// Fcntl_nocancel
// Select_nocancel
// Fsync_nocancel
// Connect_nocancel
// Sigsuspend_nocancel
// Readv_nocancel
// Writev_nocancel
// Sendto_nocancel
// Pread_nocancel
// Pwrite_nocancel
// Waitid_nocancel
// Poll_nocancel
// Msgsnd_nocancel
// Msgrcv_nocancel
// Sem_wait_nocancel
// Aio_suspend_nocancel
// __sigwait_nocancel
// __semwait_signal_nocancel
// __mac_mount
// __mac_get_mount
// __mac_getfsstat

View file

@ -1,77 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build 386,darwin
package unix
import (
"syscall"
"unsafe"
)
func Getpagesize() int { return 4096 }
func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
func NsecToTimespec(nsec int64) (ts Timespec) {
ts.Sec = int32(nsec / 1e9)
ts.Nsec = int32(nsec % 1e9)
return
}
func NsecToTimeval(nsec int64) (tv Timeval) {
nsec += 999 // round up to microsecond
tv.Usec = int32(nsec % 1e9 / 1e3)
tv.Sec = int32(nsec / 1e9)
return
}
//sysnb gettimeofday(tp *Timeval) (sec int32, usec int32, err error)
func Gettimeofday(tv *Timeval) (err error) {
// The tv passed to gettimeofday must be non-nil
// but is otherwise unused. The answers come back
// in the two registers.
sec, usec, err := gettimeofday(tv)
tv.Sec = int32(sec)
tv.Usec = int32(usec)
return err
}
func SetKevent(k *Kevent_t, fd, mode, flags int) {
k.Ident = uint32(fd)
k.Filter = int16(mode)
k.Flags = uint16(flags)
}
func (iov *Iovec) SetLen(length int) {
iov.Len = uint32(length)
}
func (msghdr *Msghdr) SetControllen(length int) {
msghdr.Controllen = uint32(length)
}
func (cmsg *Cmsghdr) SetLen(length int) {
cmsg.Len = uint32(length)
}
func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
var length = uint64(count)
_, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(*offset>>32), uintptr(unsafe.Pointer(&length)), 0, 0, 0, 0)
written = int(length)
if e1 != 0 {
err = e1
}
return
}
func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
// SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions
// of darwin/386 the syscall is called sysctl instead of __sysctl.
const SYS___SYSCTL = SYS_SYSCTL

View file

@ -1,79 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build amd64,darwin
package unix
import (
"syscall"
"unsafe"
)
//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
func Getpagesize() int { return 4096 }
func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
func NsecToTimespec(nsec int64) (ts Timespec) {
ts.Sec = nsec / 1e9
ts.Nsec = nsec % 1e9
return
}
func NsecToTimeval(nsec int64) (tv Timeval) {
nsec += 999 // round up to microsecond
tv.Usec = int32(nsec % 1e9 / 1e3)
tv.Sec = int64(nsec / 1e9)
return
}
//sysnb gettimeofday(tp *Timeval) (sec int64, usec int32, err error)
func Gettimeofday(tv *Timeval) (err error) {
// The tv passed to gettimeofday must be non-nil
// but is otherwise unused. The answers come back
// in the two registers.
sec, usec, err := gettimeofday(tv)
tv.Sec = sec
tv.Usec = usec
return err
}
func SetKevent(k *Kevent_t, fd, mode, flags int) {
k.Ident = uint64(fd)
k.Filter = int16(mode)
k.Flags = uint16(flags)
}
func (iov *Iovec) SetLen(length int) {
iov.Len = uint64(length)
}
func (msghdr *Msghdr) SetControllen(length int) {
msghdr.Controllen = uint32(length)
}
func (cmsg *Cmsghdr) SetLen(length int) {
cmsg.Len = uint32(length)
}
func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
var length = uint64(count)
_, _, e1 := Syscall6(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(unsafe.Pointer(&length)), 0, 0)
written = int(length)
if e1 != 0 {
err = e1
}
return
}
func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
// SYS___SYSCTL is used by syscall_bsd.go for all BSDs, but in modern versions
// of darwin/amd64 the syscall is called sysctl instead of __sysctl.
const SYS___SYSCTL = SYS_SYSCTL

View file

@ -1,71 +0,0 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package unix
import (
"syscall"
"unsafe"
)
func Getpagesize() int { return 4096 }
func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
func NsecToTimespec(nsec int64) (ts Timespec) {
ts.Sec = int32(nsec / 1e9)
ts.Nsec = int32(nsec % 1e9)
return
}
func NsecToTimeval(nsec int64) (tv Timeval) {
nsec += 999 // round up to microsecond
tv.Usec = int32(nsec % 1e9 / 1e3)
tv.Sec = int32(nsec / 1e9)
return
}
//sysnb gettimeofday(tp *Timeval) (sec int32, usec int32, err error)
func Gettimeofday(tv *Timeval) (err error) {
// The tv passed to gettimeofday must be non-nil
// but is otherwise unused. The answers come back
// in the two registers.
sec, usec, err := gettimeofday(tv)
tv.Sec = int32(sec)
tv.Usec = int32(usec)
return err
}
func SetKevent(k *Kevent_t, fd, mode, flags int) {
k.Ident = uint32(fd)
k.Filter = int16(mode)
k.Flags = uint16(flags)
}
func (iov *Iovec) SetLen(length int) {
iov.Len = uint32(length)
}
func (msghdr *Msghdr) SetControllen(length int) {
msghdr.Controllen = uint32(length)
}
func (cmsg *Cmsghdr) SetLen(length int) {
cmsg.Len = uint32(length)
}
func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
var length = uint64(count)
_, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(*offset>>32), uintptr(unsafe.Pointer(&length)), 0, 0, 0, 0)
written = int(length)
if e1 != 0 {
err = e1
}
return
}
func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) // sic

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