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aio_suspend

man page of aio_suspend

aio_suspend: suspend until asynchronous I/O operations or timeout complete (REALTIME)

NAME
aio_suspend - suspend until asynchronous I/O operations or timeout complete (REALTIME)

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <aio.h> int aio_suspend(const struct aiocb *const iocbs[], int niocb, const struct timespec *timeout);

DESCRIPTION

The aio_suspend() system call suspends the calling process until at least one of the specified asynchronous I/O requests have completed, a signal is delivered, or the timeout has passed. The iocbs argument is an array of niocb pointers to asynchronous I/O requests. Array members containing null pointers will be silently ignored. If timeout is not a null pointer, it specifies a maximum interval to suspend. If timeout is a null pointer, the suspend blocks indefinitely. To effect a poll, the timeout should point to a zero-value timespec structure.

RETURN VALUES

If one or more of the specified asynchronous I/O requests have completed, aio_suspend() returns 0. Otherwise it returns -1 and sets errno to indicate the error, as enumerated below.
ERRORS
The aio_suspend() system call will fail if: [EAGAIN] the timeout expired before any I/O requests completed. [EINVAL] The iocbs argument contains more than AIO_LISTIO_MAX asynchronous I/O requests, or at least one of the requests is not valid. [EINTR] the suspend was interrupted by a signal.
SEE ALSO
aio_cancel(2), aio_error(2), aio_return(2), aio_waitcomplete(2), aio_write(2), aio(4)

STANDARDS

The aio_suspend() system call is expected to conform to the IEEE Std 1003.1 (''POSIX.1'') standard.

HISTORY

The aio_suspend() system call first appeared in FreeBSD 3.0.

AUTHORS

This manual page was written by Wes Peters <wes@softweyr.com>. AIO_SUSPEND(2)
 
 
 

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