6.3.  Programming Model

The IP Gateway (Global Call) Object Oriented demo operates with two threads, as shown in Figure 4.

Figure 4.  Programming Model

The threads are created as follows:

• The first (main) thread is created by the demo application to get the keyboard input.
• The second thread is an SRL thread, created as a result of the demo application calling sr_enblhdlr( ) in Windows. In Linux, the thread must be explicitly created. All Global Call events are received through the SRL.

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