NAME
aio_return
—
retrieve return status of asynchronous
I/O operation (REALTIME)
LIBRARY
library “librt”
SYNOPSIS
#include
<aio.h>
ssize_t
aio_return
(struct
aiocb *aiocbp);
DESCRIPTION
Theaio_return
()
system call returns the final status of the asynchronous I/O request
associated with the structure pointed to by aiocbp.
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(3) 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 aiocbp argument does not reference a completed asynchronous I/O request.
SEE ALSO
STANDARDS
The aio_return
() system call is expected
to conform to the IEEE Std 1003.1-2001
(“POSIX.1”) standard.
HISTORY
The aio_return
() system call first
appeared in NetBSD 5.0.