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Treffer: Structured Multi-programming.

Title:
Structured Multi-programming.
Authors:
Hansen, Per Brinch1
Source:
Communications of the ACM. Jul1972, Vol. 15 Issue 7, p574-578. 5p. 1 Diagram.
Subject Terms:
*Programming languages, *Computer multitasking, *Data structures, Multiprogramming (Electronic computers), Systems software, Software shells, Computer software correctness, Error messages (Computer science), Compilers (Computer programs)
Database:
Library, Information Science & Technology Abstracts

Weitere Informationen

This paper presents a proposal for structured representation of multiprogramming in a high level language. The notation used explicitly associates a data structure shared by concurrent processes with operations defined on it. This clarifies the meaning of programs and permits a large class of time-dependent errors to he caught at compile time. A combination of critical regions and event variables enables the programmer to control scheduling of resources among competing processes to any degree desired. These concepts are sufficiently safe to use not only within operating systems but also within user programs. [ABSTRACT FROM AUTHOR]