osx man page for aio_error

AIO_ERROR(2)						      BSD System Calls Manual						      AIO_ERROR(2)

NAME
     aio_error -- retrieve error status of asynchronous I/O operation (REALTIME)

LIBRARY
     Standard C Library (libc, -lc)

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) is
     returned.	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 aiocbp argument does not reference an outstanding asynchronous I/O request.

SEE ALSO
     aio_cancel(2), aio_read(2), aio_return(2), aio_suspend(2), aio_write(2), fsync(2), read(2), write(2), aio(4)

STANDARDS
     The aio_error() system call is expected to conform to the IEEE Std 1003.1 (``POSIX.1'') standard.

HISTORY
     The aio_error() system call first appeared in FreeBSD 3.0.

AUTHORS
     This manual page was written by Wes Peters <wes@softweyr.com>.

BSD
								   June 2, 1999 							       BSD