Committing the changes to support the new nsIEventQueue interface and

nested queues in the event queue service.


git-svn-id: svn://10.0.0.236/trunk@30290 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/xpcom/threads/nsEventQueue.cpp

@@ -0,0 +1,106 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+#include "nsEventQueue.h"
+
+nsEventQueueImpl::nsEventQueueImpl()
+{
+  NS_INIT_REFCNT();
+
+  mEventQueue = NULL;
+	
+}
+
+nsEventQueueImpl::~nsEventQueueImpl()
+{
+  if (NULL != mEventQueue) {
+    PL_DestroyEventQueue(mEventQueue);
+  }
+}
+
+NS_IMETHODIMP 
+nsEventQueueImpl::Init()
+{
+  mEventQueue = PL_CreateNativeEventQueue("Thread event queue...", PR_GetCurrentThread());
+	return NS_OK;
+}
+
+NS_IMETHODIMP
+nsEventQueueImpl::InitFromPLQueue(PLEventQueue* aQueue)
+{
+	mEventQueue = aQueue;
+	return NS_OK;
+}
+
+/* nsISupports interface implementation... */
+NS_IMPL_ISUPPORTS(nsEventQueueImpl,kIEventQueueIID);
+
+/* nsIEventQueue interface implementation... */
+
+NS_IMETHODIMP_(PRStatus)
+nsEventQueueImpl::PostEvent(PLEvent* aEvent)
+{
+	return PL_PostEvent(mEventQueue, aEvent);
+}
+
+NS_IMETHODIMP
+nsEventQueueImpl::PostSynchronousEvent(PLEvent* aEvent)
+{
+	PL_PostSynchronousEvent(mEventQueue, aEvent);
+	return NS_OK;
+}
+
+NS_IMETHODIMP
+nsEventQueueImpl::ProcessPendingEvents()
+{
+	PL_ProcessPendingEvents(mEventQueue);
+	return NS_OK;
+}
+
+NS_IMETHODIMP
+nsEventQueueImpl::EventAvailable(PRBool& aResult)
+{
+	aResult = PL_EventAvailable(mEventQueue);
+	return NS_OK;
+}
+
+NS_IMETHODIMP
+nsEventQueueImpl::GetEvent(PLEvent** aResult)
+{
+	*aResult = PL_GetEvent(mEventQueue);
+	return NS_OK;
+}
+
+NS_IMETHODIMP_(PRInt32) 
+nsEventQueueImpl::GetEventQueueSelectFD() 
+{
+  return PL_GetEventQueueSelectFD(mEventQueue);
+}
+
+NS_METHOD
+nsEventQueueImpl::Create(nsISupports *aOuter,
+                            REFNSIID aIID,
+                            void **aResult)
+{
+  nsEventQueueImpl* evt = new nsEventQueueImpl();
+  if (evt == NULL)
+    return NS_ERROR_OUT_OF_MEMORY;
+  nsresult rv = evt->QueryInterface(aIID, aResult);
+  return rv;
+}