aio_suspend man page on MacOSX

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

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

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <aio.h>

     int
     aio_suspend(const struct aiocb *const list[], int nent,
	 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 list argument is an array of nent pointers to asynchronous I/O
     requests.	Array members containing NULL will be silently ignored.

     If timeout is a non-nil pointer, it specifies a maximum interval to sus‐
     pend.  If timeout is a nil pointer, the suspend blocks indefinitely.  To
     effect a poll, the timeout should point to a zero-value timespec struc‐
     ture.

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 of the listed I/O
			requests completed.

     [EINTR]		The suspend was interrupted by a signal.

     [EINVAL]		The list argument contains more than AIO_LISTIO_MAX
			asynchronous I/O requests, or at least one of the
			requests is not valid.

SEE ALSO
     aio_cancel(2), aio_error(2), aio_return(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⟩.

BSD				 June 2, 1999				   BSD
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