NAME¶

aio_error - get error status of asynchronous I/O operation

LIBRARY¶

Real-time library (librt, -lrt)

SYNOPSIS¶

#include <aio.h>

int aio_error(const struct aiocb *aiocbp);

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.

> 0

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.

ATTRIBUTES¶

For an explanation of the terms used in this section, see attributes(7).

STANDARDS¶

POSIX.1-2008.

HISTORY¶

glibc 2.1. POSIX.1-2001.

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)