Add even more of the source

This should be about everything needed to build so far?

CommonUtilitiesLib/DssStopwatch.h

@@ -0,0 +1,106 @@
+/*
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * Copyright (c) 1999-2008 Apple Inc.  All Rights Reserved.
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ *
+ */
+#ifndef __DSS_STOPWATCH__
+#define __DSS_STOPWATCH__
+//#include "DssStopwatch.h"
+
+#include "OS.h"
+
+
+class DssEggtimer {
+    public:
+        enum { kDurationNeverExpire = -1 };
+        
+        DssEggtimer( SInt64 inMilliseconds ) { fTimerDuration = inMilliseconds; Reset(); }
+        
+        void OneShotSetTo( SInt64 inMilliseconds )
+        {
+            // set the egg timer to this time for one cycle.
+            // there after Reset will use fTimerDuration
+            fExpirationMilliseconds =  OS::Milliseconds() + inMilliseconds;
+        }
+        void Reset() 
+        { 
+            //if ( fTimerDuration != (SInt64)kDurationNeverExpire ) 
+            fExpirationMilliseconds =  OS::Milliseconds() + fTimerDuration; 
+        }
+        
+        void ResetTo(SInt64 inMilliseconds) 
+        { 
+            fTimerDuration = inMilliseconds;
+            this->Reset();
+        }
+        
+        Bool16 Expired() 
+        { 
+            //if (fTimerDuration == (SInt64)kDurationNeverExpire  )
+            //  return false;
+            
+            return fExpirationMilliseconds <= OS::Milliseconds(); 
+        }
+        SInt64  MaxDuration() { return fTimerDuration; }
+        
+    private:
+        SInt64  fTimerDuration; 
+        SInt64  fExpirationMilliseconds;
+
+};
+
+class DssMillisecondStopwatch {
+
+    public:
+        DssMillisecondStopwatch() :
+        fIsStarted(false)
+        , fTimerDuration(-1)
+        {}
+        ;
+        void Start() { fStartedAt = OS::Milliseconds(); fIsStarted = true; }
+        void Stop()  { fTimerDuration = OS::Milliseconds() - fStartedAt; }
+        
+        SInt64  Duration() { return fTimerDuration; }
+
+    private:
+        Bool16  fIsStarted;
+        SInt64  fTimerDuration; 
+        SInt64  fStartedAt; 
+};
+
+class DssDurationTimer {
+
+    public:
+        DssDurationTimer() { fStartedAtMsec = OS::Milliseconds(); }
+        void Reset() { fStartedAtMsec = OS::Milliseconds(); }
+        void ResetToDuration( SInt64 inDurationInMsec ) { fStartedAtMsec = OS::Milliseconds() - inDurationInMsec; }
+        SInt64 DurationInMilliseconds() { return OS::Milliseconds() - fStartedAtMsec; }
+        SInt64 DurationInSeconds() { return (OS::Milliseconds() - fStartedAtMsec) / (SInt64)1000; }
+        
+
+    private:
+        SInt64  fStartedAtMsec; 
+};
+
+
+#endif
+