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147 lines
4.0 KiB
Markdown
147 lines
4.0 KiB
Markdown
![libuv][libuv_banner]
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## Overview
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libuv is a multi-platform support library with a focus on asynchronous I/O. It
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was primarily developed for use by [Node.js](http://nodejs.org), but it's also
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used by Mozilla's [Rust language](http://www.rust-lang.org/),
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[Luvit](http://luvit.io/), [Julia](http://julialang.org/),
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[pyuv](https://github.com/saghul/pyuv), and [others](https://github.com/joyent/libuv/wiki/Projects-that-use-libuv).
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## Feature highlights
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* Full-featured event loop backed by epoll, kqueue, IOCP, event ports.
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* Asynchronous TCP and UDP sockets
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* Asynchronous DNS resolution
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* Asynchronous file and file system operations
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* File system events
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* ANSI escape code controlled TTY
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* IPC with socket sharing, using Unix domain sockets or named pipes (Windows)
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* Child processes
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* Thread pool
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* Signal handling
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* High resolution clock
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* Threading and synchronization primitives
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## Community
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* [Mailing list](http://groups.google.com/group/libuv)
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## Documentation
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* [include/uv.h](https://github.com/joyent/libuv/blob/master/include/uv.h)
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— API documentation in the form of detailed header comments.
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* [An Introduction to libuv](http://nikhilm.github.com/uvbook/)
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— An overview of libuv with tutorials.
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* [LXJS 2012 talk](http://www.youtube.com/watch?v=nGn60vDSxQ4)
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— High-level introductory talk about libuv.
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* [Tests and benchmarks](https://github.com/joyent/libuv/tree/master/test)
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— API specification and usage examples.
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* [libuv-dox](https://github.com/thlorenz/libuv-dox)
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— Documenting types and methods of libuv, mostly by reading uv.h.
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## Build Instructions
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For GCC there are two methods building: via autotools or via [GYP][].
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GYP is a meta-build system which can generate MSVS, Makefile, and XCode
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backends. It is best used for integration into other projects.
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To build with autotools:
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$ sh autogen.sh
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$ ./configure
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$ make
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$ make check
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$ make install
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### Windows
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First, [Python][] 2.6 or 2.7 must be installed as it is required by [GYP][].
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If python is not in your path set the environment variable `PYTHON` to its
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location. For example: `set PYTHON=C:\Python27\python.exe`
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To build with Visual Studio, launch a git shell (e.g. Cmd or PowerShell)
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and run vcbuild.bat which will checkout the GYP code into build/gyp and
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generate uv.sln as well as related project files.
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To have GYP generate build script for another system, checkout GYP into the
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project tree manually:
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$ mkdir -p build
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$ git clone https://git.chromium.org/external/gyp.git build/gyp
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### Unix
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Run:
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$ ./gyp_uv.py -f make
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$ make -C out
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### OS X
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Run:
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$ ./gyp_uv.py -f xcode
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$ xcodebuild -ARCHS="x86_64" -project uv.xcodeproj \
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-configuration Release -target All
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Note to OS X users:
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Make sure that you specify the architecture you wish to build for in the
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"ARCHS" flag. You can specify more than one by delimiting with a space
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(e.g. "x86_64 i386").
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### Android
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Run:
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$ source ./android-configure NDK_PATH gyp
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$ make -C out
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Note for UNIX users: compile your project with `-D_LARGEFILE_SOURCE` and
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`-D_FILE_OFFSET_BITS=64`. GYP builds take care of that automatically.
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### Running tests
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Run:
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$ ./gyp_uv.py -f make
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$ make -C out
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$ ./out/Debug/run-tests
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## Supported Platforms
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Microsoft Windows operating systems since Windows XP SP2. It can be built
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with either Visual Studio or MinGW. Consider using
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[Visual Studio Express 2010][] or later if you do not have a full Visual
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Studio license.
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Linux using the GCC toolchain.
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OS X using the GCC or XCode toolchain.
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Solaris 121 and later using GCC toolchain.
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## Patches
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See the [guidelines for contributing][].
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[node.js]: http://nodejs.org/
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[GYP]: http://code.google.com/p/gyp/
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[Python]: https://www.python.org/downloads/
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[Visual Studio Express 2010]: http://www.microsoft.com/visualstudio/eng/products/visual-studio-2010-express
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[guidelines for contributing]: https://github.com/joyent/libuv/blob/master/CONTRIBUTING.md
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[libuv_banner]: https://raw.githubusercontent.com/joyent/libuv/master/img/banner.png
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