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aio_error(3) — Linux manual page

NAME \|LIBRARY \|SYNOPSIS \|DESCRIPTION \|RETURN VALUE \|ERRORS \|ATTRIBUTES \|STANDARDS \|HISTORY \|EXAMPLES \|SEE ALSO \|COLOPHON

aio_error(3)             Library Functions Manualaio_error(3)

NAME top

       aio_error - get error status of asynchronous I/O operation

LIBRARY top

       Real-time library (librt,-lrt)

SYNOPSIS top

#include <aio.h>int aio_error(const struct aiocb *aiocbp);

DESCRIPTION top

       Theaio_error() function returns the error status for the       asynchronous I/O request with control block pointed to byaiocbp.       (Seeaio(7) for a description of theaiocb 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.0if the request completed successfully.       >0A positive error number, if the asynchronous I/O operation              failed.  This is the same value that would have been stored              in theerrno variable in the case of a synchronousread(2),write(2),fsync(2), orfdatasync(2) call.

ERRORS top

EINVALaiocbp does not point at a control block for an              asynchronous I/O request of which the return status (seeaio_return(3)) has not been retrieved yet.ENOSYS aio_error() is not implemented.

ATTRIBUTES top

       For an explanation of the terms used in this section, seeattributes(7).       ┌──────────────────────────────────────┬───────────────┬─────────┐       │Interface│Attribute│Value│       ├──────────────────────────────────────┼───────────────┼─────────┤       │aio_error()                          │ Thread safety │ MT-Safe │       └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS top

       POSIX.1-2008.

HISTORY top

       glibc 2.1.  POSIX.1-2001.

EXAMPLES top

       Seeaio(7).

COLOPHON top

       This page is part of theman-pages (Linux kernel and C library       user-space interface documentation) project.  Information about       the project can be found at        ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report       for this manual page, see       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.       This page was obtained from the tarball man-pages-6.15.tar.gz       fetched from       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on       2025-08-11.  If you discover any rendering problems in this HTML       version of the page, or you believe there is a better or more up-       to-date source for the page, or you have corrections or       improvements to the information in this COLOPHON (which isnot       part of the original manual page), send a mail to       man-pages@man7.orgLinux man-pages 6.15            2025-05-17aio_error(3)

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