aio_error - Man Page
get error status of asynchronous I/O operation
Library
Real-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 | MT-Safe | 
Standards
POSIX.1-2008.
History
glibc 2.1. POSIX.1-2001.
Examples
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)
Referenced By
aio(7), aio_cancel(3), aio_fsync(3), aio_read(3), aio_return(3), aio_suspend(3), aio_write(3), lio_listio(3), signal-safety(7).