aio_error - get error status of asynchronous I/O operation
Real-time library (
librt,
-lrt)
#include <aio.h>
int aio_error(const struct aiocb *aiocbp);
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.)
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.
- 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.
The
aio_error() function is available since glibc 2.1.
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.
See
aio(7).
aio_cancel(3),
aio_fsync(3),
aio_read(3),
aio_return(3),
aio_suspend(3),
aio_write(3),
lio_listio(3),
aio(7)