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AIO_ERROR(3) Library Functions Manual AIO_ERROR(3) NAME aio_error -- retrieve error status of asynchronous I/O operation (REALTIME) LIBRARY POSIX Real-time Library (librt, -lrt) SYNOPSIS #include <aio.h> int aio_error(const struct aiocb *aiocbp); DESCRIPTION The aio_error() system call returns the error status of the asynchronous I/O request associated with the structure pointed to by aiocbp. RETURN VALUES If the asynchronous I/O request has completed successfully, aio_error() returns 0. If the request has not yet completed, EINPROGRESS is returned. If the request has completed unsuccessfully the error status is returned as described in read(2), write(2), or fsync(2). On failure, aio_error() returns -1 and sets errno to indicate the error condition. ERRORS The aio_error() system call will fail if: [EINVAL] The aiocb argument does not reference an outstanding asynchronous I/O request. SEE ALSO fsync(2), read(2), write(2), aio(3) STANDARDS The aio_error() system call is expected to conform to the IEEE Std 1003.1-2001 (``POSIX.1'') standard. HISTORY The aio_error() system call first appeared in NetBSD 5.0. NetBSD 7.1.2 May 17, 2010 NetBSD 7.1.2