INtime® 3.1 Software - tenAsys

Chapter 4: About RT programming
Figure 4-5. Resources in a process
Process
A
B
A group of related threads.
The memory the threads need.
An object directory where you can catalog thread resources.
You decide what processes to include in your system. INtime software coordinates the
use of resources within and between processes so independently-developed applications
do not cause problems for each other.
Multiprogramming simplifies adding new applications; you can modify your system
by adding new processes (or removing old ones) without affecting other processes.
Inter-thread coordination and communication
INtime software exchange objects are mailboxes, semaphores, regions, and message
ports. They enable asynchronous threads, which run in a random order, to coordinate
and communicate with one another by:
• Passing messages.
• Synchronizing with each other.
• Mutually excluding each other from resources.
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