AIO_RETURN(2) BSD System Calls Manual AIO_RETURN(2)NAME
aio_return -- retrieve return status of asynchronous I/O operation (REALTIME)
Standard C Library (libc, -lc)
aio_return(struct aiocb *aiocbp);
The aio_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 aio_error(2)
returns something other than EINPROGRESS) and to clean up system resources. However, if aio_return() is not called at all, aio(4) will leak
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 aiocbp argument does not reference an outstanding asynchronous I/O request.
[EINPROGRESS] The asynchronous I/O request is still in progress.
aio_return(struct aiocb *aiocbp);
The type of the return value has changed.
SEE ALSO aio_cancel(2), aio_error(2), aio_suspend(2), aio_write(2), fsync(2), read(2), write(2), aio(4), compat(5)STANDARDS
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 <firstname.lastname@example.org>.
BSD September 26, 2008 BSD
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