C# 最终块的隐藏函数？

当我看到这个（第790-811行）时，我正在阅读：

//我们需要在finally块中执行Interlocked.Increment和value/state更新，以确保它们运行
//没有中断。这是为了防止它们之间发生任何事情，以及另一次出列
//线程可能永远旋转，等待m_state[]为真；
尝试
{ }
最后
{
新高=联锁增量（参考m_高）；
如果（newhigh线程中止不能在finally块运行时发生。CLR保证执行

您发布的代码正利用这一事实来确保始终执行清理。
更准确地说，您可以保证代码在假定域/进程的其余部分不会消失（即有人拔出插头）且线程未挂起的情况下运行。
//We need do Interlocked.Increment and value/state update in a finally block to ensure that they run
//without interuption. This is to prevent anything from happening between them, and another dequeue
//thread maybe spinning forever to wait for m_state[] to be true;
try
{ }
finally
{
    newhigh = Interlocked.Increment(ref m_high);
    if (newhigh <= SEGMENT_SIZE - 1)
    {
        m_array[newhigh] = value;
        m_state[newhigh].m_value = true;
    }

    //if this thread takes up the last slot in the segment, then this thread is responsible
    //to grow a new segment. Calling Grow must be in the finally block too for reliability reason:
    //if thread abort during Grow, other threads will be left busy spinning forever.
    if (newhigh == SEGMENT_SIZE - 1)
    {
        Grow();
    }
}