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

Race Conditions

A race condition is a situation, in which the result of an operation depends on the interleaving of certain individual operations.

Race conditions are quite difficult to spot. It depends on the interleaving of the threads whether they occur. That means the number of cores, the utilisation of your system, or the optimisation level of your executable may all be reasons why a race condition appears or does not.

Race conditions are not bad per se. It is the nature of threads that they interleave in different ways, but this can often cause serious problems. In this case, I call them malign race conditions. Typical effects of malign race conditions are data races, breaking of program invariants, blocking issues of threads, or lifetime issues of variables.