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Stable release
1.38.1 / July 3, 2020; 2 months ago (2020-07-03)[1]
Repository Edit this at Wikidata
Written inC
Operating systemCross-platform
PlatformLinux, Android, Windows and OS X/Darwin,[2] FreeBSD, OpenBSD
TypeI/O abstraction library
LicenseMIT Edit this on Wikidata

libuv (Unicorn Velociraptor Library[3]) is a multi-platform C library that provides support for asynchronous I/O based on event loops. It supports epoll(4), kqueue(2), Windows IOCP, and Solaris event ports. It is primarily designed for use in Node.js but it is also used by other software projects.[4] It was originally an abstraction around libev or Microsoft IOCP, as libev supports only select(2) and doesn't support poll(2) and IOCP on Windows. In node-v0.9.0's version of libuv, the dependency on libev was removed.[5]



See also


  1. ^ "The libuv github releases". GitHub. Retrieved 15 August 2020.
  2. ^ a b "The libuv project page and source code". GitHub. Retrieved 30 June 2016.
  3. ^ "Welcome to the libuv documentation — libuv documentation". Retrieved 24 July 2017.
  4. ^ "Projects that use libuv". libuv GitHub project page. Retrieved 30 June 2016.
  5. ^ An introduction to libuv
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