32 lines
695 B
Markdown
32 lines
695 B
Markdown
---
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layout: pattern
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title: Mutex
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folder: mutex
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permalink: /patterns/mutex/
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categories: Concurrency
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tags:
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- Decoupling
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---
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## Also known as
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* Mutual Exclusion Lock
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* Binary Semaphore
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## Intent
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Create a lock which only allows a single thread to access a resource at any one instant.
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## Class diagram
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## Applicability
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Use a Mutex when
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* You need to prevent two threads accessing a critical section at the same time
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* Concurrent access to a resource could lead to a race condition
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## Credits
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* [Lock (computer science)](http://en.wikipedia.org/wiki/Lock_(computer_science))
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* [Semaphores](http://tutorials.jenkov.com/java-concurrency/semaphores.html)
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