CS 4504 Lecture Notes - Lecture 5: Remote Procedure Call, Message Passing, Mobile Agent

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Sometimes we do not need to know exact details of how something works so we use abstraction to explain it. So in this table we will use the most abstraction for object space and least for message passing. The basic operations required to support message-passing paradigms are send and receive. For connection-oriented communication connect and disconnect are also required. So interconnected processes perform input output to each other similarly as os input output operations. This means that operations are encapsulated at the operating system level and the coder does not have to deal with underlying detail. Socket paradigm two processes may exchange data as follows: a sender writes or inserts a message into the socket. At the other end, a receiver reads or extracts a message from the socket. The client-server model is a collaboration between two processes. First process sits patiently (server) waiting for request.

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