aio_return - get return status of asynchronous I/O operation
#include <aio.h>
ssize_t aio_return(struct aiocb * aiocbp );
The aio_return () function returns the final return status for the asynchronous I/O request with control block pointed to by aiocbp .
This function should be called only once for any given request, after aio_error (3) returns something other than EINPROGRESS .
If the asynchronous I/O operation has completed, this function returns the value that would have been returned in case of a synchronous read , write , or fsync request. Otherwise the return value is undefined. On error, the error value is returned.
EINVAL aiocbp does not point at a control block for an asynchronous I/O request of which the return status has not been retrieved yet.
aio_cancel (3) aio_error (3) aio_fsync (3) aio_read (3) aio_suspend (3) aio_write (3)
