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Inter-process communication in Linux: Shared storage

Submitted by Rianne Schestowitz on Monday 15th of April 2019 02:01:52 PM Filed under
Linux
HowTos

A process is a program in execution, and each process has its own address space, which comprises the memory locations that the process is allowed to access. A process has one or more threads of execution, which are sequences of executable instructions: a single-threaded process has just one thread, whereas a multi-threaded process has more than one thread. Threads within a process share various resources, in particular, address space. Accordingly, threads within a process can communicate straightforwardly through shared memory, although some modern languages (e.g., Go) encourage a more disciplined approach such as the use of thread-safe channels. Of interest here is that different processes, by default, do not share memory.

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