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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

Multithreading (see pthreads(7) )

The aio_error() function is thread-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 3.78 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 http://www.kernel.org/doc/man-pages/.

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