C# System.Threading.Timer的处理方法不适用于ManualResetEventSlim?
我有以下用于模拟Windows服务的示例控制台应用程序的代码C# System.Threading.Timer的处理方法不适用于ManualResetEventSlim?,c#,windows-services,timer,manualresetevent,C#,Windows Services,Timer,Manualresetevent,我有以下用于模拟Windows服务的示例控制台应用程序的代码 class Program { private Timer timer; private object syncRoot = new object(); private bool stopSignalled = false; private ManualResetEventSlim mre = new ManualResetEventSlim(false); static void Main(s
class Program
{
private Timer timer;
private object syncRoot = new object();
private bool stopSignalled = false;
private ManualResetEventSlim mre = new ManualResetEventSlim(false);
static void Main(string[] args)
{
Program p = new Program();
p.Start();
Console.ReadLine();
p.Stop();
Console.WriteLine("Stopped at:{0:G}", DateTime.Now);
}
private void Stop()
{
stopSignalled = true;
mre.Wait();
}
private void Timercallback(object state)
{
lock (syncRoot)
{
if (!stopSignalled)
{
Console.WriteLine("Callback invoked at:{0:G}",DateTime.Now);
}
else
{
timer.Dispose(mre.WaitHandle);
Console.WriteLine("Timer disposed at:{0:G}", DateTime.Now);
}
}
}
private void Start()
{
Console.WriteLine("Started at:{0:G}",DateTime.Now);
timer = new Timer(Timercallback,null,TimeSpan.Zero,TimeSpan.FromSeconds(1));
}
}
我感到惊讶的是,接受WaitHandle的Dispose重载在使用ManualResetEventSlim时从未向句柄发出信号。
如果我将代码更改为像这样使用ManualResetEvent,那么句柄确实会收到信号
class Program
{
private Timer timer;
private object syncRoot = new object();
private bool stopSignalled = false;
private ManualResetEvent mre = new ManualResetEvent(false);
static void Main(string[] args)
{
Program p = new Program();
p.Start();
Console.ReadLine();
p.Stop();
Console.WriteLine("Stopped at:{0:G}", DateTime.Now);
}
private void Stop()
{
stopSignalled = true;
mre.WaitOne();
}
private void Timercallback(object state)
{
lock (syncRoot)
{
if (!stopSignalled)
{
Console.WriteLine("Callback invoked at:{0:G}",DateTime.Now);
}
else
{
timer.Dispose(mre);
Console.WriteLine("Timer disposed at:{0:G}", DateTime.Now);
}
}
}
private void Start()
{
Console.WriteLine("Started at:{0:G}",DateTime.Now);
timer = new Timer(Timercallback,null,TimeSpan.Zero,TimeSpan.FromSeconds(1));
}
}
什么给你 是否已检查Dispose方法的返回值?接受等待句柄的Dispose返回true/false,指示成功/失败。无论返回值如何,Dispose都应在某个点向句柄发出信号。你从来没有检查过Dispose方法的返回值吗?接受等待句柄的Dispose返回true/false,指示成功/失败。无论返回值如何,Dispose都应在某个点向句柄发出信号。从来没有