How do I design concurrent queues?

C++, Concurrent Queue, Thread-Safe, Data Structures, Multithreading, Synchronization
Learn how to design concurrent queues in C++ that enable safe access for multiple threads. This guide covers key concepts, implementation details, and code examples.
// Example of a simple thread-safe queue in C++ #include #include #include #include template class ConcurrentQueue { public: ConcurrentQueue() = default; void enqueue(T value) { std::lock_guard<:mutex> lock(mtx); queue.push(value); condVar.notify_one(); } bool dequeue(T& result) { std::lock_guard<:mutex> lock(mtx); if (queue.empty()) { return false; } result = queue.front(); queue.pop(); return true; } bool empty() { std::lock_guard<:mutex> lock(mtx); return queue.empty(); } private: std::queue queue; std::mutex mtx; std::condition_variable condVar; }; int main() { ConcurrentQueue queue; // Example usage queue.enqueue(42); int value; if (queue.dequeue(value)) { std::cout << "Dequeued: " << value << std::endl; } return 0; }

C++ Concurrent Queue Thread-Safe Data Structures Multithreading Synchronization