aio_error(3p) — Linux manual page

PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

AIO_ERROR(3P)           POSIX Programmer's Manual          AIO_ERROR(3P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The
       Linux implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior),
       or the interface may not be implemented on Linux.

NAME         top

       aio_error — retrieve errors status for an asynchronous I/O
       operation

SYNOPSIS         top

       #include <aio.h>

       int aio_error(const struct aiocb *aiocbp);

DESCRIPTION         top

       The aio_error() function shall return the error status associated
       with the aiocb structure referenced by the aiocbp argument. The
       error status for an asynchronous I/O operation is the errno value
       that would be set by the corresponding read(), write(),
       fdatasync(), or fsync() operation. If the operation has not yet
       completed, then the error status shall be equal to [EINPROGRESS].

       If the aiocb structure pointed to by aiocbp is not associated
       with an operation that has been scheduled, the results are
       undefined.

RETURN VALUE         top

       If the asynchronous I/O operation has completed successfully,
       then 0 shall be returned. If the asynchronous operation has
       completed unsuccessfully, then the error status, as described for
       read(), write(), fdatasync(), and fsync(), shall be returned. If
       the asynchronous I/O operation has not yet completed, then
       [EINPROGRESS] shall be returned.

       If the aio_error() function fails, it shall return -1 and set
       errno to indicate the error.

ERRORS         top

       The aio_error() function may fail if:

       EINVAL The aiocbp argument does not refer to an asynchronous
              operation whose return status has not yet been retrieved.

       The following sections are informative.

EXAMPLES         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       aio_cancel(3p), aio_fsync(3p), aio_read(3p), aio_return(3p),
       aio_write(3p), close(3p), exec(1p), exit(3p), fork(3p),
       lio_listio(3p), lseek(3p), read(3p)

       The Base Definitions volume of POSIX.1‐2017, aio.h(0p)

COPYRIGHT         top

       Portions  of this text are reprinted and reproduced in electronic
       form  from  IEEE  Std  1003.1-2017,  Standard   for   Information
       Technology  --  Portable  Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018  Edition,  Copyright
       (C)   2018   by  the  Institute  of  Electrical  and  Electronics
       Engineers,  Inc  and  The  Open  Group.   In  the  event  of  any
       discrepancy  between  this  version and the original IEEE and The
       Open Group  Standard,  the  original  IEEE  and  The  Open  Group
       Standard  is  the  referee document. The original Standard can be
       obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in  this  page
       are  most likely to have been introduced during the conversion of
       the source files to man page format. To report such  errors,  see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group               2017                     AIO_ERROR(3P)

Pages that refer to this page: aio.h(0p)aio_fsync(3p)aio_read(3p)aio_return(3p)aio_write(3p)lio_listio(3p)