Provided by: freebsd-manpages_6.2-1_all
aio_return - retrieve return status of asynchronous I/O operation
Standard C Library (libc, -lc)
aio_return(struct aiocb *iocb);
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 aio_error(2) returns
something other than EINPROGRESS.
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.
The aio_return() system call will fail if:
[EINVAL] The iocb argument does not reference an outstanding
asynchronous I/O request.
aio_cancel(2), aio_error(2), aio_suspend(2), aio_waitcomplete(2),
aio_write(2), fsync(2), read(2), write(2), aio(4)
The aio_return() system call is expected to conform to the IEEE Std
1003.1 (“POSIX.1”) standard.
The aio_return() system call first appeared in FreeBSD 3.0.
This manual page was written by Wes Peters 〈email@example.com〉.