求助！！！将C++代码用C#的语法表示

怎样把这段C++代码转成C#代码

    std::mutex mutexCompletedCount;
    std::condition_variable conditionCompletedCount;
    auto completedCount = 0;

    auto onCompleted = [&](bool status)
    {
        {
            std::unique_lock<std::mutex> lock(mutexCompletedCount);
            completedCount += 1;
        }
        conditionCompletedCount.notify_one();
    };

static object locker = new object(); 
var completedCount = 0;

//...
{
    //获取锁
    Monitor.Enter(locker);
    completedCount++;

    //释放锁
    Monitor.Exit(locker);
}