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wilamowski-b-m-irwin-j-d-industrial-communication-systems-2011

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User Datagram Protocol—UDP 60-9<br />

Internet socket is an end point of a bidirectional interprocess <strong>communication</strong> flow across an IP-based<br />

computer network. Interface to the socket library is standardized only on Unix/Linux and Windows. Other<br />

operating <strong>systems</strong> including various embedded <strong>systems</strong> may employ different functions to carry out the same<br />

functionality. Programs of the same functionality implemented in other languages may combine several<br />

steps into calling a single function. This is especially true for the socket initialization and connection set up.<br />

FIGURE 60.8<br />

Sample C program that illustrates a UDP client utilizing multicasting.<br />

(continued)<br />

© <strong>2011</strong> by Taylor and Francis Group, LLC

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