The user application supplies a completed message buffer, as it would for
a &cw(rmr_send_msg) call, but unlike with a send, the buffer returned will have
the response from the application that received the message.
The user application supplies a completed message buffer, as it would for
a &cw(rmr_send_msg) call, but unlike with a send, the buffer returned will have
the response from the application that received the message.