线程间协作还可通过lock(加锁)方式进行,lock属于C#的Monitor语法糖(Monitor后续讲解)。使用简单快捷,如下:
/// <summary>
/// 多线程协作-lock快捷方式
/// 成功解决多线程对单一资源的共享
/// </summary>
private static void MultiThreadSynergicWithLock()
{
int[] array = new int[3]; Thread producer = new Thread(() =>
{
int count = 0;
Random random = new Random();
while (true)
{
if (10 == count)
break; lock (array)
{
array[0] = random.Next(10);
array[1] = random.Next(10);
array[2] = random.Next(10);
count++;
Console.WriteLine(String.Format("{0} work count:{1}。{2}-{3}-{4}", Thread.CurrentThread.Name, count, array[0], array[1], array[2]));
}
Thread.Sleep(100);
}
})
{
Name = "producer"
};
Thread customer = new Thread(() =>
{
//Console.WriteLine(String.Format("{0} start work", Thread.CurrentThread.Name));
int count = 0;
while (true)
{
if (10 == count)
break;
lock (array)
{
count++;
Console.WriteLine(String.Format("{0} work count:{1}。{2}-{3}-{4}", Thread.CurrentThread.Name, count, array[0], array[1], array[2]));
array[0] = 0;
array[1] = 0;
array[2] = 0;
}
Thread.Sleep(10);
}
})
{
Name = "customer"
}; producer.Start();
customer.Start();
}
说明:
1、通过lock成功解决了多个线程对同一资源的共享使用问题,确保一个线程在lock到资源后,另外需要资源的线程只能处于等待状态。
2、lock并不能解决线程间顺序执行的问题(线程顺序执行是指:要求线程A,B满足,A先执行,B再执行,A又执行,B再次执行这种交替模式)