ManualResetEvent

#pragma once

#include <condition_variable>


class ManualResetEvent
{
public:
    ManualResetEvent() : _signaled(false) {}

    void signal()
    {
        std::unique_lock<mutex> lock(_mutex);
        _signaled = true;
        _cond.notify_all();
    }

    void unsignal()
    {
        std::unique_lock<mutex> lock(_mutex);
        _signaled = false;
    }


    void wait()
    {
        std::unique_lock<mutex> lock(_mutex);

        while ( !_signaled )
            _cond.wait(lock);
    }

private:
    mutex _mutex;
    std::condition_variable _cond;
    bool _signaled;
};