The SRR IPC kernel module, which includes a
synchronous message passing library modeled on the QNX 4
send/receive/reply message-passing API. This module
installs automatically, but requires a C compiler for the
installation. You can get more information and/or download
this module at the Cogent Web
Site.
This module may not be necessary for some Gamma
applications, but it is required for any use of timers,
event handling, or inter-process communication.