aio_return man page on Archlinux

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AIO_RETURN(3)		   Linux Programmer's Manual		 AIO_RETURN(3)

NAME
       aio_return - get return status of asynchronous I/O operation

SYNOPSIS
       #include <aio.h>

       ssize_t aio_return(struct aiocb *aiocbp);

       Link with -lrt.

DESCRIPTION
       The aio_return() function returns the final return status for the asyn‐
       chronous I/O request with control block pointed	to  by	aiocbp.	  (See
       aio(7) for a description of the aiocb structure.)

       This  function  should be called only once for any given request, after
       aio_error(3) returns something other than EINPROGRESS.

RETURN VALUE
       If the asynchronous I/O operation has completed, this function  returns
       the  value  that	 would	have  been  returned  in case of a synchronous
       read(2), write(2), fsync(2) or fdatasync(2), call.

       If the asynchronous I/O operation has not  yet  completed,  the	return
       value and effect of aio_return() are undefined.

ERRORS
       EINVAL aiocbp does not point at a control block for an asynchronous I/O
	      request of which the return status has not been retrieved yet.

       ENOSYS aio_return() is not implemented.

VERSIONS
       The aio_return() function is available since glibc 2.1.

ATTRIBUTES
   Multithreading (see pthreads(7))
       The aio_return() function is thread-safe.

CONFORMING TO
       POSIX.1-2001, POSIX.1-2008.

EXAMPLE
       See aio(7).

SEE ALSO
       aio_cancel(3), aio_error(3), aio_fsync(3), aio_read(3), aio_suspend(3),
       aio_write(3), lio_listio(3), aio(7)

COLOPHON
       This  page  is  part of release 3.65 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

				  2013-07-04			 AIO_RETURN(3)
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