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NAME

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

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
                        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〉.