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man:aio_error

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 4.16 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)
/data/webs/external/dokuwiki/data/pages/man/aio_error.txt · Last modified: 2019/05/17 09:47 by 127.0.0.1

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