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Transactional Memory - An Overview

Explore transactional memory concepts in C++20 concurrency, understanding the ACID properties—atomicity, consistency, and isolation—that make concurrent programming safer and more composable. Learn how transactions execute optimistically and rollback on conflicts, contrasting with traditional mutex-based approaches, to simplify multithreaded code.

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Transactional memory is based on the idea of a transaction from database theory. Transactional memory makes working with threads a lot easier for two reasons: first, data races and deadlocks disappear; second, transactions are composable.

A transaction is an action that has the following properties: ...