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 |
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 4.10 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/.