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34-NetworkSockets - CS 241 Spring 2008 System Programming...

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CS 241 Spring 2008 System Programming 1 Socket Programming Lawrence Angrave socket bind UDP example
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2 Connection-oriented Communication Protocol Server monitors a passive end-point whose address is known to clients Listening (passive) endpoints have resources for queuing client connection requests and establishing client connections Action of accepting a client request creates a new endpoint for private, two-way symmetric communication with that client Client and server communicate by using handles (file descriptors) and do not explicitly include addresses in their messages When finished, client and server close their file descriptors , system releases resources associated with the connection
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3 Parent-server Strategy
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4 What is a socket? An interface between application and network The application creates a socket The socket type dictates the style of communication reliable vs. best effort connection-oriented vs. connectionless Once configured, the application can pass data to the socket for network transmission receive data from the socket (transmitted through the network by some other host)
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