Operating Systems Concurrency: Guide to Locks and Synchronization

Writing multithreaded applications requires more than just launching threads; it demands a deep understanding of how those threads coordinate. Without proper synchronization, concurrent programs suffer from race conditions, deadlocks, and unpredictable behavior. This text-only course guides you through the inner workings of concurrency, showing you exactly how operating systems and hardware coordinate to manage shared resources safely. You will transition from writing basic code to understanding the low-level mechanics that power modern, high-performance synchronization. What you'll learn: Understand the fundamental concepts of race conditions, critical sections, and thread safety; Explore hardware-level support for concurrency, including atomic operations and test-and-set instructions; Analyze operating system primitives like futexes and thread parking used to build efficient locks; Implement basic synchronization patterns such as mutexes, semaphores, and condition variables; Identify common concurrency pitfalls like deadlocks, livelocks, and priority inversion; Examine modern lock-free programming concepts and memory ordering basics. Starting with core terminology and foundational operating system concepts, this course systematically builds your knowledge from hardware instructions up to high-level language primitives. Through clear written explanations and detailed pseudocode examples, you will explore how modern systems achieve safe parallel execution. This program is designed for software developers, computer science students, and systems enthusiasts who want to understand what happens under the hood of concurrent code, with no advanced systems programming experience required. Step inside to demystify operating system concurrency and elevate your systems programming skills today.