aio_error(3) — Linux manual page


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

NAME         top

       aio_error - get error status of asynchronous I/O operation

SYNOPSIS         top

       #include <aio.h>

       int aio_error(const struct aiocb *aiocbp);

       Link with -lrt.

DESCRIPTION         top

       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         top

       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         top

       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         top

       The aio_error() function is available since glibc 2.1.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see

       │Interface   Attribute     Value   │
       │aio_error() │ Thread safety │ MT-Safe │

CONFORMING TO         top

       POSIX.1-2001, POSIX.1-2008.

EXAMPLES         top

       See aio(7).

SEE ALSO         top

       aio_cancel(3), aio_fsync(3), aio_read(3), aio_return(3),
       aio_suspend(3), aio_write(3), lio_listio(3), aio(7)

COLOPHON         top

       This page is part of release 5.08 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

                                 2020-06-09                     AIO_ERROR(3)

Pages that refer to this page: aio_cancel(3)aio_fsync(3)aio_read(3)aio_return(3)aio_suspend(3)aio_write(3)lio_listio(3)aio(7)signal-safety(7)