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

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.Lb libc

.In aio.h int aio_suspend const struct aiocb * const iocbs[] int niocb const struct timespec * timeout

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.

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.

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.

aio_cancel(2), aio_error(2), aio_return(2), aio_waitcomplete(2), aio_write(2), aio(4)

The aio_suspend system call is expected to conform to the -p1003.1 standard.

The aio_suspend system call first appeared in
.Fx 3.0 .

This manual page was written by
.An Wes Peters Aq wes@softweyr.com .

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