Esempio n. 1
0
        /// <summary>
        /// PreMessageLoop is responsible for registering the COM class
        /// factories for the COM classes to be exposed from the server, and
        /// initializing the key member variables of the COM server (e.g.
        /// _nMainThreadID and _nLockCnt).
        /// </summary>
        private void PreMessageLoop()
        {
            //
            // Register the COM class factories.
            //

            //Guid clsidSimpleObj = new Guid(SimpleObject.ClassId);
            Guid clsid = new Guid(IID.VDServer);

            // Register the SimpleObject class object
            int hResult = COMNative.CoRegisterClassObject(ref clsid, new VDServerClassFactory(),
                                                          CLSCTX.LOCAL_SERVER, REGCLS.SINGLEUSE | REGCLS.SUSPENDED,
                                                          out _cookie);

            if (hResult != 0)
            {
                throw new ApplicationException("CoRegisterClassObject failed w/err 0x" + hResult.ToString("X"));
            }

            // Inform the SCM about all the registered classes, and begins
            // letting activation requests into the server process.
            hResult = COMNative.CoResumeClassObjects();
            if (hResult != 0)
            {
                // Revoke the registration of SimpleObject on failure
                if (_cookie != 0)
                {
                    COMNative.CoRevokeClassObject(_cookie);
                }

                // Revoke the registration of other classes
                // ...

                throw new ApplicationException("CoResumeClassObjects failed w/err 0x" + hResult.ToString("X"));
            }

            // Records the ID of the thread that runs the COM server so that
            // the server knows where to post the WM_QUIT message to exit the
            // message loop.
            _nMainThreadID = NativeMethod.GetCurrentThreadId();

            // Records the count of the active COM objects in the server.
            // When _nLockCnt drops to zero, the server can be shut down.
            _nLockCnt = 0;

            // Start the GC timer to trigger GC every 5 seconds.
            _gcTimer = new Timer(new TimerCallback(GarbageCollect), null, 5000, 5000);
        }
Esempio n. 2
0
        /// <summary>
        /// PostMessageLoop is called to revoke the registration of the COM
        /// classes exposed from the server, and perform the cleanups.
        /// </summary>
        private void PostMessageLoop()
        {
            // Revoke the registration of  COM classes
            if (_cookie != 0)
            {
                COMNative.CoRevokeClassObject(_cookie);
            }

            // Dispose the GC timer.
            if (_gcTimer != null)
            {
                _gcTimer.Dispose();
            }

            // Wait for any threads to finish.
            Thread.Sleep(1000);
        }