Archive for year: 2022

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Five Giveaway eBooks for “C++20 STL Cookbook”

July 31, 2022

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I'm happy to announce that I have five giveaway eBooks for "C++20 STL Cookbook" by Bill Weinman. In return,…

classification

Classification of Design Patterns

July 28, 2022

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Patterns can be classified in various ways. The most prominent ones are the ones used in the books "Design…

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And the Five Winners for “C++ Core Guidelines: Best Practices for Modern C++”

July 24, 2022

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Today, I want to present the five winners of the vouchers for my book "C++ Core Guidelines Explained:…

MinskFlieger

Training or Mentoring: What’s the Difference?

July 20, 2022

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Training and mentoring aim one goal: to improve your skills in a well-defined way. Although both aim…

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C++ Core Guidelines Explained: Best Practices for Modern C++

July 11, 2022

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I give away five vouchers for my book "C++ Core Guidelines Explained: Best Practices for Modern C++".…

history

The History of Patterns

July 5, 2022

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Most software developers assume that the book "Design Patterns: Elements of Reusable Object-Oriented…

patterns

The Advantages of Patterns

June 30, 2022

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Before I write about patterns in my upcoming posts, I have to answer one question first. What are the…

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I’m Nominated for the “2022 Business Worldwide CEO Awards”

June 21, 2022

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Last week, the visitor numbers on this page went from 7,000/day to 25,000/day. Now, I know why. I'm nominated…

patterns

Design Patterns and Architectural Patterns with C++: A First Overview

June 20, 2022

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Based on my last poll, "Which mentoring program should I implement next?" I recognized that there is…

Cpp23

Ranges Improvements with C++23

June 16, 2022

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Thanks to C++23, constructing containers will become more convenient. Additionally, the ranges library…

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Hazard Pointers in C++26May 5, 2025 - 11:12 am
Hazard pointers provide garbage collection in C++ and solve the ABA problem. First of all. What is a hazard pointer? Proposal P2530R3 gives a nice explanation: A hazard pointer is a single-writer multi-reader pointer that can be owned by at most one thread at any time. Only the owner of the hazard pointer can set […]
A Lock-Free Stack: A Hazard Pointer Implementation Explained IIApril 7, 2025 - 11:11 am
In my last post, I started to explain a hazard pointer implementation: A Lock-Free Stack: A Hazard Pointer Implementation Explained I. Today, I will continue to explain the implementation. The Retire List The retire list has the public member functions isInUse, addNode, and deleteUnusedNodes. Additionally, it has the inner class RetireNode, an atomic member of […]
A Lock-Free Stack: A Hazard Pointer Implementation Explained IMarch 24, 2025 - 11:37 am
In my last post, I presented a hazard pointer implementation: A Lock-Free Stack: A Hazard Pointer Implementation. Today, I will explain the implementation. MyNode is a class template, parametrized by the type it holds: data. MyNode models the concept Node. template <typename T> concept Node = requires(T a) { {T::data}; { *a.next } -> std::same_as<T&>; […]
A Lock-Free Stack: A Hazard Pointer ImplementationMarch 10, 2025 - 11:42 am
Hazard Pointers solve all issues of the previous implementation: A Lock-Free Stack: A Simple Garbage Collector. From one Week to two Weeks You may have already noticed. I will change my blog publishing frequency from one to two weeks in the future. Writing a post using your voice is exceptionally exhausting and time-consuming. Hazard Pointers […]
A Lock-Free Stack: A Simple Garbage CollectorFebruary 24, 2025 - 11:58 am
My next lock-free stack includes a simple garbage collector. I discussed the concurrent execution of more than one topAndPush call is a Race Condition. I can safely delete a node if not more than one topAndPush call is executing concurrently. This observation is crucial for solving this memory leak issue: I store removed nodes on […]
A Lock-Free Stack: Atomic Smart PointerFebruary 17, 2025 - 11:47 am
The easiest way to solve this memory leak issue from the last post is to use a std::shared_ptr. Atomic Smart Pointer There are two ways to apply atomic operations on a std::shared_ptr: In C++11, you can use the free atomic functions on std::shared_ptr. With C++20, you can use atomic smart pointers. C++11 Using atomic operations […]