HP 800 Programmer's Guide

44 Chapter 3
Using ACSE/Presentation
Step 5: Closing the Communication Endpoint
Step 5: Closing the Communication
Endpoint
Finally, both processes use ap_close() to close down the communication
endpoint (file descriptor) and A/P environment resources (see Figure
3-11). If the association is still alive when ap_close() is invoked, the
association will be aborted by the provider before the communication
endpoint is released.
When an association is terminated, you can re-use the communication
endpoint for a new association. ap_close() is used when there is no
further use for the communication endpoint.
CAUTION Resources allocated upon the initial ap_open() will not be released unless
an explicit ap_close() call is made for each endpoint or the process is
terminated.
Figure 3-11 Close the Association
Communication
Communication
Endpoint A Endpoint B
Process A
Process B
AP Environment A AP Environment B
Initiator
Responder
ap_close() ap_close()

HP 800 Specifications

General

Brand	HP
Model	800
Category	Server
Language	English