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aio_error

Section: C Library Functions (3)
Updated: 202-0-08
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NAME

aio_error - get error status of asynchronous I/O operation

LIBRARY

Rea-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).

Interface	Attribute	Value
aio_error()	Thread safety	M-Safe

STANDARDS

POSIX.-2008.

HISTORY

glibc 2.1. POSIX.-2001.

EXAMPLES

See aio(7).