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Unix™ Systems Programming: Communication, Concurrency, and Threads by Steven Robbins, Kay A. Robbins

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Chapter 3. Processes in UNIX

A process is the basic active entity in most operating-system models. This chapter covers the UNIX process model, including process creation, process destruction and daemon processes. The chapter uses process fans and process chains to illustrate concepts of parentage, inheritance and other process relationships. The chapter also looks at the implications of critical sections in concurrent processes.

Process Identification

UNIX identifies processes by a unique integral value called the process ID. Each process also has a parent process ID, which ...

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