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AIO_RETURN(2)		  FreeBSD System Calls Manual		 AIO_RETURN(2)

NAME
     aio_return	-- retrieve return status of asynchronous I/O operation	(REAL-
     TIME)

LIBRARY
     Standard C	Library	(libc, -lc)

SYNOPSIS
     #include <aio.h>

     int
     aio_return(struct aiocb *iocb);

DESCRIPTION
     The aio_return() system call returns the final status of the asynchronous
     I/O request associated with the structure pointed to by iocb.

     The aio_return() system call should only be called	once, to obtain	the
     final status of an	asynchronous I/O operation once	it has completed
     (aio_error(2) returns something other than	EINPROGRESS).

RETURN VALUES
     If	the asynchronous I/O request has completed, the	status is returned as
     described in read(2), write(2), or	fsync(2).  Otherwise, aio_return()
     returns -1	and sets errno to indicate the error condition.

ERRORS
     The aio_return() system call will fail if:

     [EINVAL]		The iocb argument does not reference a completed asyn-
			chronous I/O request.

SEE ALSO
     aio_cancel(2), aio_error(2), aio_suspend(2), aio_waitcomplete(2),
     aio_write(2), fsync(2), read(2), write(2),	aio(4)

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

HISTORY
     The aio_return() system call first	appeared in FreeBSD 3.0.

AUTHORS
     This manual page was written by Wes Peters	<wes@softweyr.com>.

FreeBSD	9.2			October	7, 2006			   FreeBSD 9.2

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | STANDARDS | HISTORY | AUTHORS

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