IPCs -- Inter Process Communication messages commonly known as IPCs. Requesters and Servers communicate each other through IPCs.
There are 2 types of IPCs messages:
1. Request 2. Reply
Request Messages:
Request Messages are sent from a Requester and received by particular Service of the SERVER.
Commonly Request messages are initiated from SCREEN COBOL with SEND statement. Pathway then routes the request to a server containing the service. Server then reads the message using special file $RECEIVE.
Reply Messages:
Reply messages are formatted by SERVICE and sent back to the requester after the service is completed. Reply message is written to $RECEIVE and pathway routes this information to requester.
Reply message contains the requested information if the service is successful or error message if the service is not successful.
Source: HP PathMaker Manual
There are 2 types of IPCs messages:
1. Request 2. Reply
Request Messages:
Request Messages are sent from a Requester and received by particular Service of the SERVER.
Commonly Request messages are initiated from SCREEN COBOL with SEND statement. Pathway then routes the request to a server containing the service. Server then reads the message using special file $RECEIVE.
Reply Messages:
Reply messages are formatted by SERVICE and sent back to the requester after the service is completed. Reply message is written to $RECEIVE and pathway routes this information to requester.
Reply message contains the requested information if the service is successful or error message if the service is not successful.
Source: HP PathMaker Manual
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