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92 lines
2.9 KiB
Markdown
92 lines
2.9 KiB
Markdown
libuEv | Simple event loop for Linux
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====================================
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[![Travis Status][]][Travis] [![Coverity Status][]][Coverity Scan]
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* [Introduction](#introduction)
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* [API](API.md#api)
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* [Create an Event Context](API.md#create-an-event-context)
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* [Register an Event Watcher](API.md#register-an-event-watcher)
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* [Start Event Loop](API.md#start-event-loop)
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* [Summary](API.md#summary)
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* [Using -luev](API.md#using--luev)
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* [Joystick Example](API.md#joystick-example)
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* [Build & Install](#build--install)
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* [Origin & References](#origin--references)
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Introduction
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------------
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[libuEv][] is a simple event loop in the style of the more established
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[libevent][1], [libev][2] and the venerable [Xt(3)][3] event loop. The
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*u* (micro) in the name refers to both the small feature set and the
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small size overhead impact of the library.
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Experienced developers may appreciate that [libuEv][] is built on top of
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modern Linux APIs: epoll, timerfd and signalfd. Note however, a certain
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amount of care is needed when dealing with APIs that employ signalfd.
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For details, see [this article][4] at [lwn.net](http://lwn.net).
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Documentation
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-------------
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The API documentation is available as a [separate document](API.md).
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Build & Install
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---------------
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The library is built for and developed on GNU/Linux systems, patches to
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support *BSD and its [kqueue][] interface are most welcome.
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libuEv use the GNU configure and build system. To try out the bundled
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examples, use the `--enable-examples` switch to the `configure` script.
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```sh
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$ ./configure
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$ make -j5
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$ make test
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$ sudo make install-strip
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$ sudo ldconfig
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```
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The resulting .so file is ~14 kiB (<kbd>make install-strip</kbd>).
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Origin & References
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-------------------
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[libuEv][] was originally based on [LibUEvent][8] by [Flemming Madsen][]
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but has been completely rewritten to provide a cleaner API. It is now
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more similar to the famous [libev][2] by [Mark Lehmann][]. Another
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small event library used for inspiration is the very small [Picoev][9]
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by [Oku Kazuho][].
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[libuEv][] is developed and maintained by [Joachim Nilsson][].
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[1]: http://libevent.org
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[2]: http://software.schmorp.de/pkg/libev.html
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[3]: http://unix.com/man-page/All/3x/XtDispatchEvent
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[4]: http://lwn.net/Articles/415684/
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[8]: http://code.google.com/p/libuevent/
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[9]: https://github.com/kazuho/picoev
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[Travis]: https://travis-ci.org/troglobit/libuev
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[Travis Status]: https://travis-ci.org/troglobit/libuev.png?branch=master
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[Coverity Scan]: https://scan.coverity.com/projects/3846
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[Coverity Status]: https://scan.coverity.com/projects/3846/badge.svg
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[LibuEv]: https://github.com/troglobit/libuev
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[kqueue]: https://github.com/mheily/libkqueue
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[Oku Kazuho]: https://github.com/kazuho
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[Mark Lehmann]: http://software.schmorp.de
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[Joachim Nilsson]: http://troglobit.com
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[Flemming Madsen]: http://www.madsensoft.dk
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