aio_return2
Retrieve return status of asynchronous i/o operation (realtime)
Usage
#include <aio.h>
int
aio_return(struct aiocb *iocb);
Library
Standard C Library (libc, -lc)
Overview
The aio_return() system call returns the final status of the asynchronous I/O request associated with the structure pointed to by iocb.
The aio_return() system call should only be called once, to obtain the final status of an asynchronous I/O operation once aio_error(2) returns something other than EINPROGRESS.
Return values
If the asynchronous I/O request has completed, the status is returned as described in read(2), write(2), or fsync(2). On failure, aio_return() returns -1 and sets errno to indicate the error condition.
Errors
The aio_return() system call will fail if:
- [EINVAL]
-
The iocb argument does not reference an outstanding asynchronous I/O request.