aio_suspend man page on FreeBSD

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AIO_SUSPEND(2)		    BSD System Calls Manual		AIO_SUSPEND(2)

     aio_suspend — suspend until asynchronous I/O operations or timeout com‐
     plete (REALTIME)

     Standard C Library (libc, -lc)

     #include <aio.h>

     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

     If timeout is not a null pointer, it specifies a maximum interval to sus‐
     pend.  If timeout is a null pointer, the suspend blocks indefinitely.  To
     effect a poll, the timeout should point to a zero-value timespec struc‐

     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 indi‐
     cate 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 IEEE Std
     1003.1 (“POSIX.1”) standard.

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

     This manual page was written by Wes Peters ⟨⟩.

BSD				 June 2, 1999				   BSD

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