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java-design-patterns/mutex/README.md

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---
layout: pattern
title: Mutex
folder: mutex
permalink: /patterns/mutex/
2016-07-21 09:27:48 +03:00
categories: Concurrency
tags:
- Decoupling
---
## Also known as
* Mutual Exclusion Lock
* Binary Semaphore
## Intent
Create a lock which only allows a single thread to access a resource at any one instant.
## Class diagram
![alt text](./etc/mutex.png "Mutex")
## Applicability
Use a Mutex when
* You need to prevent two threads accessing a critical section at the same time
* Concurrent access to a resource could lead to a race condition
## Credits
2020-01-11 13:14:59 +05:30
* [Lock (computer science)](http://en.wikipedia.org/wiki/Lock_(computer_science))
* [Semaphores](http://tutorials.jenkov.com/java-concurrency/semaphores.html)