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{{redirect|IOCP|the program on IBM mainframes|Input/Output Configuration Program}}Input/output completion port (IOCP) is an API for performing multiple simultaneous asynchronous input/output operations in Windows NT versions 3.5 and later,Windows I/O Completion Ports AIXConfiguring IOCP on AIX 5 and 6 and on Solaris 10 and later.WEB,weblink Solaris 10 I/O Completion Ports, 2008-07-20, bot: unknown,weblink" title="web.archive.org/web/20110719052845weblink">weblink July 19, 2011, An input/output completion port object is created and associated with a number of sockets or file handles. When I/O services are requested on the object, completion is indicated by a message queued to the I/O completion port. A process requesting I/O services is not notified of completion of the I/O services, but instead checks the I/O completion port's message queue to determine the status of its I/O requests. The I/O completion port manages multiple threads and their concurrency.

See also

• Overlapped I/O
• kqueue
• epoll

References

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External links

• Article {{webarchive |url=https://web.archive.org/web/20101101112358weblink |date=November 1, 2010 |title="Inside I/O Completion Ports" }} by Mark Russinovich.
• IOCPSOCK - an IOCP implementation of a channel driver for the Tcl language to run on Windows NT/2K/XP/Vista
• US6223207B1 - Input/output completion port queue data structures and methods for using same

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