AIO_RETURN(2) BSD 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() function returns the final status of the asynchronous
I/O request associated with the structure pointed to by iocb.
aio_return() should only be called once, to obtain the final status of an
asynchronous I/O operation once 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). On failure, aio_return()
returns -1 and sets errno to indicate the error condition.
ERRORS
The aio_return() function will fail if:
[EINVAL] iocb does not reference an outstanding asynchronous
I/O request.
SEE ALSOaio_cancel(2), aio_error(2), aio_read(2), aio_suspend(2), aio_write(2),
fsync(2), read(2), write(2)STANDARDSaio_return() is expected to conform to the IEEE Std 1003.2 (“POSIX.2”)
standard.
HISTORY
The aio_return function first appeared in FreeBSD 3.0.
AUTHORS
This manual page was written by Wes Peters ⟨wes@softweyr.com⟩.
BSD June 2, 1999 BSD