threads_critical_section.cpp

Critical section synchronization primitive example

 
#include "threads/critical_section.h"
 
#include <atomic>
#include <iostream>
#include <thread>
#include <vector>
 
int main(int argc, char** argv)
{
    std::cout << "Press Enter to stop..." << std::endl;
 
    CppCommon::CriticalSection lock;
 
    // Start some threads
    std::atomic<bool> stop(false);
    std::vector<std::thread> threads;
    for (int thread = 0; thread < 4; ++thread)
    {
        threads.emplace_back([&lock, &stop, thread]()
        {
            while (!stop)
            {
                // Use locker with critical section to protect the output
                CppCommon::Locker<CppCommon::CriticalSection> locker(lock);
 
                std::cout << "Random value from thread " << thread << ": " << rand() << std::endl;
            }
        });
    }
 
    // Wait for input
    std::cin.get();
 
    // Stop threads
    stop = true;
 
    // Wait for all threads
    for (auto& thread : threads)
        thread.join();
 
    return 0;
}