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AIO_RETURN(3) NetBSD Library Functions Manual AIO_RETURN(3)
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aio_return -- retrieve return status of asynchronous I/O operation (REAL-
POSIX Real-time Library (librt, -lrt)
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 it has completed
(aio_error(3) 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). Otherwise, 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 a completed
asynchronous I/O request.
fsync(2), read(2), write(2), aio(3)
The aio_return() system call is expected to conform to the IEEE Std
1003.1-2001 (``POSIX.1'') standard.
The aio_return() system call first appeared in NetBSD 5.0.
NetBSD 8.0 August 13, 2011 NetBSD 8.0