aio_error - Return the error status of a specified asynchronous I/O operation (P1003.1b)
int aio_error (const struct
The aio_error function returns the error status associated with the aiocb structure referenced by the aiocbp argument. The error status is the errno value that is set by the corresponding asynchronous I/O read, write, or fsync operation.
The aio_error function returns EINPROGRESS until the asynchronous I/O operation is complete. Once the operation is complete, call the aio_return function to determine if the operation is successful.
If the asynchronous I/O operation is successful, a value of 0 is returned.
If the asynchronous I/O operation has not yet completed, [EINPROGRESS] is returned.
If the aio_error operation was canceled, [ECANCELED] is returned.
On an unsuccessful call, the value returned corresponds to those error values returned for a failed read, write, or fsync operation.
The aio_error function fails under the following conditions:
Functions: close(2), exec(2), _exit(2), fork(2), lseek(2), read(2), write(2), aio_cancel(3), aio_group_completion_np(3), aio_read(3), aio_results_np(3), aio_return(3), aio_suspend(3), aio_write(3), lio_listio(3). delim off