Construct · 1 fields · 1 citations

monitor: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone construct Nearest construct by meaningsynchronizationcompare the meanings
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Every construct on the map is compared with every other by the meaning of its definitions, and the closest one is surfaced here. The nearest construct to monitor is synchronization.

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monitor1 CONSTRUCTConcurrency monitorHOARE · SHARED-DATA GUARD

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Concurrent programming

a concurrency construct bundling shared data with its procedures so only one thread is active inside at a time.

A monitor is a concurrency construct that bundles shared data with the procedures that touch it and guarantees that only one thread is active inside it at a time, coordinating the rest through condition variables on which they wait and are signalled. Hoare's 1974 Monitors: an operating system structuring concept set out this mechanism as a disciplined way to protect a shared resource from concurrent access without scattering explicit locks through the code. The referent is an abstraction in a programming language or operating system, defined by mutual exclusion and by its condition variables, and it is not a screen a person looks at, a reptile in the field, or an instrument at a hospital bedside.[1]

Unit
A mutual-exclusion construct guarding shared data
Recovery means
Not applicable
Measured by
Reasoned about through its invariant and the correctness of its entry, exit, wait, and signal operations, rather than measured on a scale

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Nearby constructs

signal5 fields · 5 citationsjingle · one word, five constructscoupling4 fields · 4 citationsjingle · one word, four constructsstate4 fields · 6 citationsjingle · one word, four constructs

References

  1. Hoare, C. A. R. (1974). Monitors: an operating system structuring concept. Communications of the ACM, 17(10), 549–557. https://doi.org/10.1145/355620.361161

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