NAME
aio_return —
retrieve return status of asynchronous
I/O operation (REALTIME)
LIBRARY
library “libc”
SYNOPSIS
#include
<aio.h>
ssize_t
aio_return(struct
aiocb *iocb);
DESCRIPTION
Theaio_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>.