The server application may deliver a null reply if the request was successfully processed and there are no data to be returned. When invoking the
awDeliverNullReplyEvent function, you may either specify a valid publish sequence number or specify a value of zero if you do not wish to use publish sequence numbers. For more information, see
Using Sequence Numbers.
. . .
printf("Delivering null reply to requestor\n");
err = awDeliverNullReplyEvent(c,e,"Sample::Reply",0);
if (err != AW_NO_ERROR) {
printf("Error on awDeliverNullReplyEvent\n");
return 0;
}
. . .