Question

I am writing a Com server and I have wrote code that detect situation when COM client was closed unexpectedly, in this case I should close COM server inside COM server code.

How can I do this?

UPD: I have situations when COM server is hanged or more correctly I can’t attach to COM server from COM client, but application that contains COM server is alive, so I think that COM server can detect that all old COM clients was disconnected/closed/crashed and application will restart because no new clients attached.

I have write the following code in COM client in separate thread

while(not we are closing)
{
   unknown->QueryInterface(IComServer, &server);

   if (server)
     return;
}

so the COM client can wait until server will really ready to work

UPD2: Just tested: after 12 minutes my COM server was closed

Answer 1

COM periodically pings clients to see if they are still alive and runs down interfaces from dead clients. So your server will find out eventually.