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PUBLICATIONS

Multiple Programs in One UNIX Process

Published

Author(s)

Don E. Libes

Abstract

A small operating system (XINU) was ported to UNIX 4.2BSD. The entire operating system runs as a single UNIX process. The code is approximately 1000 lines of C (including comments) and 6 lines of assembler. All of the code is user-level, and thus presents a system easy to examine, understand, and experiment with further. The code has been used as a base for an application of several cooperating processes communicating through global variables. Alternatively, the system provides semaphores and messages for Interprocess communication.
Proceedings Title
Proceedings of the 1987 Summer USENIX Conference
Pub Type
Conferences

Download Paper

Local Download

Keywords

XINU, UNIX, program, code, system

Citation

Libes, D. (1987), Multiple Programs in One UNIX Process, Proceedings of the 1987 Summer USENIX Conference, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=821315 (Accessed October 15, 2025)

Issues

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Created September 1, 1987, Updated February 17, 2017
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