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aio_error(2)                BSD System Calls Manual               aio_error(2)


NAME

     aio_error -- retrieve error status of asynchronous I/O operation (REAL-
     TIME)


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

Mac OS X 10.9.1 - Generated Sun Jan 5 18:55:21 CST 2014
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