NAME

       aio_return — retrieve return status of asynchronous I/O operation (REALTIME)

LIBRARY

       Standard C Library (libc, -lc)

SYNOPSIS

       #include <aio.h>

       ssize_t
       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 asynchronous 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>.

Debian                                           March 21, 2016                                    AIO_RETURN(2)