NOT PART OF BUILD

first checkin of timing service so we can get rough timing of specific events

xpfe/appshell/public/nsITimingService.idl

@@ -0,0 +1,53 @@
+/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (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.org 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.
+ *
+ * Contributor(s): 
+ */
+
+#include "nsISupports.idl"
+
+[scriptable, uuid(53510e04-0891-4fd0-bb63-5bf243100bf7)]
+interface nsITimingService : nsISupports
+{
+    /**
+     * startNamedTimer - start or reset the timer with the given name
+     */
+    void startTimer(in string timername);
+
+    /**
+     * getTimerElapsed()
+     * get the elapsed time on the given timer
+     */
+    long long getElapsedTime(in string timername);
+
+    /**
+     * setNamedTimer()
+     * for advanced users only - sets the start time for a given
+     * timer. Only use if you could not call startNamedTimer() for
+     * some reason
+     */
+    void setTimer(in string timername, in long long starttime);
+    
+};
+
+%{C++
+#define NS_TIMINGSERVICE_CONTRACTID \
+    "@mozilla.org/appshell/timing-service;1"
+      
+%}

xpfe/appshell/src/nsTimingService.cpp

@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (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.org 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.
+ *
+ * Contributor(s): 
+ */
+
+#include "nsTimingService.h"
+
+NS_IMPL_ISUPPORTS1(nsTimingService, nsITimingService)
+
+nsTimingService::~nsTimingService()
+{
+    // free up entries in hashtable
+}
+    
+NS_IMETHODIMP
+nsTimingService::StartTimer(const char *aTimerName)
+{
+    PRTime now = PR_Now();
+
+    return SetTimer(aTimerName, now);
+}
+
+NS_IMETHODIMP
+nsTimingService::SetTimer(const char *aTimerName, PRInt64 aTime)
+{
+    nsCStringKey timerKey(aTimerName);
+
+    PRInt64 *aTimerEntry = new PRInt64(aTime);
+    if (!aTimerEntry) return NS_ERROR_OUT_OF_MEMORY;
+
+#if 0
+    PRInt64 *oldEntry =
+        NS_STATIC_CAST(PRInt64 *, mTimers.Put(&timerKey,
+                                              NS_STATIC_CAST(void *, aTimerEntry)));
+#endif
+    mTimers.Put(&timerKey, (void *)aTimerEntry);
+#if 0
+    if (oldEntry)
+        delete oldEntry;
+#endif
+    
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsTimingService::GetElapsedTime(const char *aTimerName, PRInt64* aResult)
+{
+    PRTime now = PR_Now();
+
+    nsCStringKey timerKey(aTimerName);
+    
+    PRInt64 *then = (PRInt64 *)mTimers.Get(&timerKey);
+    if (!then) return NS_ERROR_FAILURE;
+    
+    LL_SUB(*aResult, now, *then);
+
+    return NS_OK;
+}

xpfe/appshell/src/nsTimingService.h

@@ -0,0 +1,45 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (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.org 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.
+ *
+ * Contributor(s): 
+ */
+
+#include "nsITimingService.h"
+#include "nsHashTable.h"
+
+#define NS_TIMINGSERVICE_CID \
+{ /* ea74eba8-efb7-4ac5-a10d-25917e3d6ee4 */ \
+    0xea74eba8, \
+        0xefb7, \
+        0x4ac5, \
+        {0xa1, 0x0d, 0x25, 0x91, 0x7e, 0x3d, 0x6e, 0xe4}}
+
+class nsTimingService : public nsITimingService
+{
+ public:
+    nsTimingService() { NS_INIT_ISUPPORTS();};
+    virtual ~nsTimingService();
+    
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSITIMINGSERVICE
+
+protected:
+
+    nsHashtable mTimers;
+};