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_suspend(3), aio_write(3), lio_listio(3), aio(7)

COLOPHON

       This page is part of release 4.15 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)