HP rp5430 ACSE/Presentation and ROSE Interface Programmer's Guide - Page 33
Step 1: Create a Communication, Endpoint
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Using ACSE/Presentation Step 1: Create a Communication Endpoint Figure 3-1 Step 1: Create a Communication Endpoint Process A and Process B must both create communication endpoints as shown in Figure 3-1, using the call ap_open(). A communication endpoint is a file descriptor (fd) which is returned on successful completion of the ap_open() call. The process uses the file descriptor in all subsequent A/P calls. Each process must create a communication endpoint, and only one association can be associated with each endpoint. To create multiple associations, you must create additional communication endpoints for each one. Create a Communication Endpoint Process A Process B ap_open() Communication Endpoint A ap_open() Communication Endpoint B Chapter 3 33