PB 2022

I have a multi-threaded app (using SharedObject functions) that is non-visual, it receives requests via Winsock and creates a background thread to process the request.

I'm getting hang-ups when it gets a lot of requests all at once. I suspect it has to do with notifying the main thread that the background thread is done.

Here is how it works:

I have a 'callback' object that is defined as a global variable with the name gnv_callback.

This is the code that launches the background thread. Callback is a function argument name. I encapsulated the SharedObjectRegister/SharedObjectGet into the CreateSharedObject function in the Callback object. In the lnv_Request object, SetCallback saves a reference to Callback in an instance variable.

			// register the shared object
			ler_result = Callback.CreateSharedObject(lnv_Request, ls_InstanceName)
			If ler_result = Success! Then
				// call functions in the shared object
				lnv_Request.SetSocket(ClientSocket)
				lnv_Request.SetCallback(Callback)
				lnv_Request.Post Process_Request(ls_InstanceName, RequestNbr)
			Else

The Process_Request function will perform the business code and when done it has the following:

// Shutdown the client socket
shutdown(ClientSocket, SD_SEND)

// Notify the main thread that the request is done
Callback.Post NotifyDone(InstanceName)

NotifyDone is just this:

SharedObjectUnregister(InstanceName)

Now I am wondering if there is a better way to unregister the shared object without causing blocking of the main thread.