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



NAME
       aio_error - get error status of asynchronous I/O operation

SYNOPSIS
       #include <aio.h>

       int aio_error(const struct aiocb *aiocbp);

       Link with -lrt.

DESCRIPTION
       The  aio_error() function returns the error status for the asynchronous
       I/O request with control block pointed to by aiocbp.  (See aio(7) for a
       description of the aiocb structure.)

RETURN VALUE
       This function returns one of the following:

       *  EINPROGRESS, if the request has not been completed yet.

       *  ECANCELED, if the request was canceled.

       *  0, if the request completed successfully.

       *  A  positive  error number, if the asynchronous I/O operation failed.
	  This is the same value that would have  been	stored	in  the	 errno
	  variable  in	the case of a synchronous read(2), write(2), fsync(2),
	  or fdatasync(2) call.

ERRORS
       EINVAL aiocbp does not point at a control block for an asynchronous I/O
	      request  of  which the return status (see aio_return(3)) has not
	      been retrieved yet.

       ENOSYS aio_error() is not implemented.

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

ATTRIBUTES
       For  an	explanation  of	 the  terms  used   in	 this	section,   see
       attributes(7).

       +------------+---------------+---------+
       |Interface   | Attribute	    | Value   |
       +------------+---------------+---------+
       |aio_error() | Thread safety | MT-Safe |
       +------------+---------------+---------+
CONFORMING TO
       POSIX.1-2001, POSIX.1-2008.

EXAMPLE
       See aio(7).

SEE ALSO
       aio_cancel(3),	aio_fsync(3),	aio_read(3),  aio_return(3),  aio_sus-
       pend(3), aio_write(3), lio_listio(3), aio(7)

COLOPHON
       This page is part of release 4.10 of the Linux  man-pages  project.   A
       description  of	the project, information about reporting bugs, and the
       latest	 version    of	  this	  page,	   can	   be	  found	    at
       https://www.kernel.org/doc/man-pages/.



				  2015-03-02			  AIO_ERROR(3)