aio_error - get error status of asynchronous I/O operation
Contents
Attributes
For an explanation of the terms used in this section, see attributes(7).
┌─────────────────────────────────────────────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├─────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤
│ aio_error() │ Thread safety │ MT-Safe │
└─────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘
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.)
Errors
EINVALaiocbp 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.
ENOSYSaio_error() is not implemented.
Examples
See aio(7).
History
glibc 2.1. POSIX.1-2001.
Library
Real-time library (librt, -lrt)
Name
aio_error - get error status of asynchronous I/O operation
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.
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) Linux man-pages 6.9.1 2024-05-02 aio_error(3)
Standards
POSIX.1-2008.
Synopsis
#include<aio.h>intaio_error(conststructaiocb*aiocbp);