#include <windows.h>
#include <thread>
#include <atomic>

#define THREADCOUNT 4

std::thread Threads[THREADCOUNT];
HANDLE TestEvent;

std::atomic<int> ThreadCounter = 0;

void WaitForAllThreads()
{
    if (ThreadCounter.fetch_add(1) == THREADCOUNT - 1)
    {
        ThreadCounter = 0;
        SetEvent(TestEvent);
        ResetEvent(TestEvent);
    }
    else
        WaitForSingleObject(TestEvent, INFINITE);
}

bool Run = true;

void ThreadFunction()
{
    while (Run)
    {
        printf("work 000\n");
        WaitForAllThreads();
        printf("work 111\n");
        WaitForAllThreads();
    }
}

int main()
{
    TestEvent = CreateEvent(
        NULL,               // default security attributes
        TRUE,               // manual-reset event
        FALSE,              // initial state is nonsignaled
        TEXT("TestEvent")  // object name
        );

    for (int i = 0; i < THREADCOUNT; ++i)
        Threads[i] = std::thread(&ThreadFunction);

    getchar();
    bool Run = false;

    for (int i = 0; i < THREADCOUNT; ++i)
        Threads[i].join();

    getchar();
}