There are information routines, described below, that can be called to obtain extra information about a received message. There are also ways of using type to wait for the first message matching a set of message types. The maximum length is 16 bytes. Valid entries include any legal C data type, it should be a pointer. A successful send does not imply that a message has been received by a process.
Processing is suspended whilst the message is being sent.
Valid entries include any legal C data type, it should be a pointer. Valid entries include any legal C type, it should be a pointer. The data in sbuf is not guaranteed to be sent before the reply begins to arrive in rbuf . It is therefore essential to use two separate buffers. Computation can therefore continue whilst a message is arriving.