Book Image

Concurrency with Modern C++

By : Rainer Grimm
Book Image

Concurrency with Modern C++

By: Rainer Grimm

Overview of this book

C++11 is the first C++ standard that deals with concurrency. The story goes on with C++17 and will continue with C++20/23. Concurrency with Modern C++ is a practical guide that gets you to grips with concurrent programming in Modern C++. Starting with the C++ memory model and using many ready-to-run code examples, the book covers everything you need to improve your C++ multithreading skills. You'll gain insight into different design patterns. You'll also uncover the general consideration you have to keep in mind while designing a concurrent data structure. The final chapter in the book talks extensively about the common pitfalls of concurrent programming and ways to overcome these hurdles. By the end of the book, you'll have the skills to build your own concurrent programs and enhance your knowledge base.
Table of Contents (19 chapters)
Free Chapter
1
Reader Testimonials
19
Index

General

Let’s start with a few very general best practices that apply to atomics and threads.

Code Reviews

Code reviews should be part of each professional software development process. This holds especially true when you deal with concurrency. Concurrency is inherently complicated and requires a lot of thoughtful analysis and experience.

To make the review most effective, send the code you want to discuss to the reviewers before the review. Explicitly state which invariants should apply to your code. The reviewers should have enough time to analyse the code before the official review starts.

Not convinced? Let me give you an example. Do you remember the data races in the program readerWriterLock.cpp in the chapter std::shared_lock?

Reader-writer locks
 1 // readerWriterLock.cpp
 2 
 3 #include <iostream>
 4 #include <map>
 5 #include <shared_mutex>
 6 #include <string>
 7 #include <thread>
 8 
 9 std::map<std::string,int> teleBook...