Chapter 10. Interprocess Communication
Interprocess communication (IPC) encompasses facilities provided by the operating system to enable the sharing of data (shared memory segments), the exchange of information and data (message queues), and synchronization of access to shared resources (semaphores) between processes and threads on the same system. Contrast IPC to networking-based facilities, such as sockets and RPC interfaces, which enable communication over a network link between distributed systems. Early IPC facilities originated in AT&T Unix System V, which added support for shared memory, semaphores, and message queues around 1983. This original set of three IPC facilities is generally known as System V IPC. Over time, a similar set of ...
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