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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_suspend(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