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Meaning of STREAMS

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Computing Dictionary

A collection of system calls, kernel resources, and kernel utility routines that can create, use, and dismantle a stream. A "stream head" provides the interface between the stream and the user processes. Its principal function is to process STREAMS-related user system calls. A "stream module" processes data that travel bewteen the stream head and driver. The "stream end" provides the services of an external input/output device or an internal software driver. The internal software driver is commonly called a pseudo-device driver.

The STREAMS concept has been formalised in unix system v. For example, svr4 implements sockets and pipes using STREAMS, resulting in pipe(2) openning bidirectional pipes.

[IBM AIX 3.2 Communication Programming Concepts, SC23-2206-03].