I'm new to multi-threading and I have been doing a Proof-of-Concept, I've also 'discovered' the (VS2008) Threads Window:
My Question is: how can I "link" the running threads to my code? For example, how would I get the Thread ID (as shown in the Threads Window) so that I could log it (for example); or, the BeginInvoke() method takes a 'id' argument (string) which I have set (as "Service A" in the example below) but I can't see it in the Threads Window.
The thing t开发者_如何学Gohat interests me is that I'm sparking up three parallel threads of execution using AsyncCallbacks and BeginInvoke() but I can only see two worker threads in the Threads Window at a point where i think I should see three. Actually I think I can - the three worker threads with the 'Name' as <No Name>
.
For reference here's some of the code I'm using:
// Creating the call back and setting the call back delegate
AsyncCallback callBackA = new AsyncCallback(AsyncOperationACompleted);
// callBackB ...
// callBackC ...
// Create instances of the delegate, which calls the method we want to execute
callerA = new DumbEndPoint.AsyncMethodCaller(DumbEndPoint.PretendWorkingServiceCall);
// callerB ...
// callerC ...
// sleep = thread sleep time in milliseconds
IAsyncResult resultA = callerA.BeginInvoke(sleep, "Service A", callBackA, null);
// resultB ...
// resultC ...
// I expect to see three threads in the Threads Window at this point.
I'm then getting the results in the call back delegate:
private void AsyncOperationACompleted(IAsyncResult result)
{
try
{
string returnValue = callerA.EndInvoke(result);
mySmartDTO.ServiceDataA = returnValue;
}
catch (Exception ex)
{
// logging
...
}
}
You can use Thread.Name to set a name for the thread. After the name is set, it will appear in the "Name" column of the Threads window.
e.g., assuming that Service A
is the name you'd like to appear in the Name column of the Threads window, you could do something like this in PretendWorkingServiceCall
:
void PretendWorkingServiceCall(int sleepMilliseconds, string name)
{
System.Threading.Thread.CurrentThread.Name = name;
// your code goes here
}
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