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The previous section introduced the simplest atomic type in C++11, std::atomic_flag, but it's too limited with only test_and_set and clear APIs. It doesn't meet other requirements like store, load, exchange, and compare_exchange. This article will explore the more comprehensive std::atomic class. Basic std::atomic Types Explained Introduction t ...

Overview The Singleton pattern ensures a class has exact one instance and provides a global point of access to it. The core challenge is: how to bypass traditional constructors and guarantee a single instance? Clients calling a class should not concern themselves with instance count restrictions—this responsibility falls on the class designer, ...

The singleton pattern is a creational design pattern that ensures a class has only one instance and provides a global point of access to it. While conceptually simple, its correct implementation—especially under concurrent conditions—requires careful attention to initialization timing, thread safety, memory visibility, and JVM-level optimizatio ...

The Singleton pattern represents one of the most fundamental design patterns in software engineering, providing an efficient mechanism for ensuring that exact one instance of a class exists throughout the application lifecycle. Core Principles of Singleton Implementation There are two primary approaches to implementing the Singleton pattern: E ...

Overview of Synchronized The synchronized keyword in Java is a mechanism for coordinating access to shared resources among multiple threads. It ensures that only one thread can execute a synchronized block or method at any given time, thus preventing race conditions and ensuring thread safety. Synchronized Code Blocks and Methods A synchronized ...

The Observer pattern is a foundational behavioral design pattern that enables loose coupling between components by defining a one-to-many dependency between objects: when one object (the subject) changes state, all its dependents (observers) are automatically notified and updated. This pattern underpins many event-handling systems in Java, incl ...

Overview of Java Thread-Safe Classes Class Type Characteristics Description Legacy Thread-Safe Classes Uses synchronized for thread safety Deprecated classes like Stack, Vector, Hashtable Collections-Decorated Classes Wrapper classes using synchronized Thread-safe versions of standard collections JUC Classes Uses CAS and multiple loc ...

Here is a C++ logging library implemented with Win32 APIs that ensures thread safety. It consists of just two files, making it simple to integrate and use. Header File The header file includes several functions for logging operations. While there are many interfaces defined, only a few are common used: WriteProgramLogNoMask: Outputs log entrie ...

synchronized vs volatile In Java concurrency, synchronized and volatile are two fundamental mechanisms for ensuring thread safety, but they serve different purposes. The synchronized keyword establishes a mutual exclusion lock. When a method or code block is decorated with synchronized, only one thread can execute that critical section at any g ...

Overview The CustomSerialPort library (available at flyfire.CustomSerialPort) builds upon the SerialPortStream library to provide protocol-agnostic complete frame reception with cross-platform support. While the library offers general-purpose serial port functionality, the implementation contains several architectural issues that warrant attent ...