Common Services

The Common Services component provides basic system services such as GETMAIN, FREEMAIN, POST, and WAIT processing.

By routing all requests for these services through a single component, most CICSPlex SM modules are isolated from the real environment in which they run. As a result, a relatively few methods (those that make up Common Services) need to be aware of the details of how these services are requested. One of the Common Services subcomponents provides timing services using the control task that runs as an MVS TCB. Another subcomponent provides locking services, both local (within a CMAS or MAS) and global (between a CMAS and its local MASs).

This component has an identifier of SRV and its module names have the characters XS in the fifth and sixth positions (for example, EYU0XSCG).