public void Run()
{
//当不同线程使用ThreadLocal时 会生成一个新的实例。？
//初始化ThreadLocal
// valueFactory - value获取工厂
// trackAllValues - 是否跟踪所有值,若为false Values无法使用。
//public ThreadLocal(Func<T> valueFactory, bool trackAllValues);
// Thread-Local variable that yields a name for a thread
ThreadLocal <string> ThreadName =
new MyThreadLocal <string>(() => { return("Thread" + Thread.CurrentThread.ManagedThreadId); }
//,true
); //一个线程享有一个 ThreadLocal
// Action that prints out ThreadName for the current thread
Action action = () =>
{
// 如果是在当前线程上初始化 Value，则为 true；否则为 false。
// 即当前线程如果已经初始化ThreadLocal 则为true 表示为同一线程二次执行
// If ThreadName.IsValueCreated is true, it means that we are not the
// first action to run on this thread.
bool repeat = ThreadName.IsValueCreated;
ThreadName.Value = $"now Thread:{Thread.CurrentThread.ManagedThreadId}";
lock (_lockObj)
{
list.Add(ThreadName.Value);
}
Console.WriteLine("ThreadName = {0} {1}", ThreadName.Value, repeat ? "(repeat)" : "");
Console.WriteLine(ThreadName);
};
Console.WriteLine($"当前线程：{Thread.CurrentThread.ManagedThreadId}");
// Launch eight of them. On 4 cores or less, you should see some repeat ThreadNames
Parallel.Invoke(action, action, action, action, action, action, action, action);
//The ThreadLocal object is not tracking values. To use the Values property, use a ThreadLocal constructor that accepts the trackAllValues parameter and set the parameter to true.”
//ThreadLocal对象没有跟踪值。要使用Values属性，请使用接受trackAllValues参数并将参数设置为true的ThreadLocal构造函数。
//Console.WriteLine(JsonConvert.SerializeObject(ThreadName.Values));
Console.WriteLine(list);
// Dispose when you are done
ThreadName.Dispose();
}
//7-6.判断是否在缓存队列中
public bool isInQueue(Vehicle vehicle)
{
Queue <Vehicle> queue = MyThreadLocal.get();
//检测站相同、VIN码相同、日期相同、时间小于durationMin，则认为是同一辆车
foreach (Vehicle v in queue)
{
if (vehicle.station.Equals(v.station))
{
if (vehicle.VIN.Equals(v.VIN))
{
if (vehicle.date.Equals(v.date))
{
DateTime newTime = Convert.ToDateTime(vehicle.date + " " + vehicle.time);
DateTime oldTime = Convert.ToDateTime(v.date + " " + v.time);
TimeSpan end = new TimeSpan(newTime.Ticks);
TimeSpan begin = new TimeSpan(oldTime.Ticks);
TimeSpan duration = end.Subtract(begin).Duration();
double result = duration.TotalMinutes;
if (result < durationMin)
{
return(true);
}
}
}
}
}
//否则，认为不是同一辆车
if (queue.Count < cacheNum)
{
queue.Enqueue(vehicle);
}
else
{
if (queue.Count > 0)
{
Vehicle v = queue.Dequeue();
queue.Enqueue(vehicle);
}
}
return(false);
}
