Using ISynchronizeInvoke

[Tim Murray]

Hi,
I am creating a multithreaded server application in
Managed C++. Each client that connects to the server will
be running on their own thread to process their input.
They all need to share one instance of a class running on
the main thread. From my understanding, if multiple
threads invoke a function in this object(on the main
thread) using a delegate, there could be problems. I was
trying to figure out how to invoke the functions using
ISynchronizeInv oke, but I have not been able to find a
good example of how to use it. Can anyone point me in the
right direction?

Thanks,
Tim

[Tomas Restrepo \(MVP\)]

Re: Using ISynchronizeInv oke

Hi Tim,
[color=blue]
> I am creating a multithreaded server application in
> Managed C++. Each client that connects to the server will
> be running on their own thread to process their input.
> They all need to share one instance of a class running on
> the main thread. From my understanding, if multiple
> threads invoke a function in this object(on the main
> thread) using a delegate, there could be problems.[/color]

There shouldn't be any, as far as I know, as long as the object itself
supports concurrent invocation correctly by ensuring it's own internal state
remains consistent despite being called from multiple threads.

The ISynchronizedIn voke thingie is mostly done to support Winforms, where
calls to UI widgets need to be always done from the same thread, because
they are subject to the old thread-specific issues that plague the win32
user interface event model from the beginning of time.

--
Tomas Restrepo
tomasr@mvps.org