Manpages - aio_error.3

Table of Contents

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.

EXAMPLES

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 5.13 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/.

Author: dt

Created: 2022-02-20 Sun 15:04