semaphore

variable that is changed (e.g., incremented, decremented, toggled) depending on programmer-defined conditions, used to control access to a common resource by multiple processes in a concurrent system
Intangible method Q221682
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semaphore

Summary

semaphore is a method[1]. semaphore ranks in the top 9% of method entities by monthly Wikipedia readership (962 views/month).[2]

Key Facts

  • semaphore's instance of is recorded as method[3].
  • semaphore is a type of synchronization primitive[4].
  • semaphore is used for concurrent computing[5].
  • semaphore is used for inter-process communication[6].
  • semaphore's Stack Exchange tag is recorded as https://stackoverflow.com/tags/semaphore[7].
  • semaphore's computes solution to is recorded as producer-consumer problem[8].

Body

Definition and Type

semaphore's instance of is recorded as method[3]. semaphore is a type of synchronization primitive[4].

Use and Application

Recorded has use include concurrent computing[5] and inter-process communication[6].

Why It Matters

semaphore ranks in the top 9% of method entities by monthly Wikipedia readership (962 views/month).[2] semaphore has Wikipedia articles in 25 language editions, a strong signal of global cultural recognition.[9] semaphore is known by 18 alternative names across languages and contexts.[10]

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Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). semaphore. Retrieved May 3, 2026, from https://4ort.xyz/entity/semaphore-q221682-2
MLA “semaphore.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/semaphore-q221682-2.
BibTeX @misc{4ortxyz_semaphore-q221682-2_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{semaphore}}, year = {2026}, url = {https://4ort.xyz/entity/semaphore-q221682-2}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): semaphore — https://4ort.xyz/entity/semaphore-q221682-2 (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 1h ago · HelloImSteven · 2026-06-05 view diff on Wikidata ↗
    Aliases
    Subclass of synchronization primitive
    Computes solution to producer-consumer problem
    Instance of
    + 4 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:1||1 */ [[Property:P12946]]: semaphore, import FOLDOC ID"
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