https://github.com/jdsherbert/threadsafe-singleton-class

C++ Threadsafe Singleton class using mutex and threadlock when accessing instance.
https://github.com/jdsherbert/threadsafe-singleton-class

boilerplate boilerplate-template cpp cpp11 cpp14 cpp17 cpp20 multithreading mutex mutex-lock mutex-locks mutex-synchronisation reference-implementation singleton singleton-pattern singletons

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C++ Threadsafe Singleton class using mutex and threadlock when accessing instance.

• Host: GitHub
• URL: https://github.com/jdsherbert/threadsafe-singleton-class
• Owner: JDSherbert
• License: mit
• Created: 2023-11-29T13:56:37.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2023-12-04T17:06:31.000Z (about 1 year ago)
• Last Synced: 2024-10-12T16:02:53.060Z (2 months ago)
• Topics: boilerplate, boilerplate-template, cpp, cpp11, cpp14, cpp17, cpp20, multithreading, mutex, mutex-lock, mutex-locks, mutex-synchronisation, reference-implementation, singleton, singleton-pattern, singletons
• Language: C++
• Homepage:
• Size: 13.7 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
![image](https://github.com/JDSherbert/Threadsafe-Singleton-Class/assets/43964243/8a288a74-0a1e-4fcb-a5d8-608bb7c9d46b)

# Threadsafe Singleton Class

  











 

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## Overview

Creating a thread-safe singleton in C++ requires handling the potential race conditions that can occur when multiple threads attempt to access the singleton instance concurrently. One common approach is to use the double-checked locking pattern. 

This example uses the mutex functions from the mutex library.

Please note that in modern C++, you can use C++11's `std::call_once` with a `std::once_flag` instead of manually managing a mutex. This is generally considered a safer and more convenient option. However, the above example demonstrates the basic concept of thread safety in a singleton.

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