Communications access

The Service Access framework provides a location and protocol-independent service addressing mechanism. All clients and servers use this framework to publish themselves, find servers, and connect to servers--regardless of their underlying protocol, naming service, transport mechanism, or location of the client and server.

The Message Streams classes send data between threads located on the same host or on different hosts. All data movement between tasks and threads uses Message Streams classes. To implement thread-to-thread communication, you can either use the Message Streams classes directly or use a higher-level communication framework that is built on Message Streams, such as RPC Services.

Understanding communications access

Communications access classes

Creating a service definition

Creating a service reference

Defining a request-reply server

Defining a request-reply client