using blocking queue to implement multi-threaded FIFO execution

For some situation, we need to implement a FIFO execution model using multiple threads, like the following watchdog scenario.using System;

using System.Collections.Generic;

using System.Threading;

namespace TestWatchDog

If I were to implement it, I probably will do something like the one in this article, which is more intuitive, or in a more traditional way, http://www.geekscafe.net/post/Blocking-Queues-Threade28099s-Communication-in-C.aspx