1 files changed, 71 insertions, 0 deletions
diff --git a/src/libs/timer/timer.h b/src/libs/timer/timer.h
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+// BEGIN_COPYRIGHT
+// 
+// Copyright (C) 1999  Allen Akin   All Rights Reserved.
+// 
+// Permission is hereby granted, free of charge, to any person
+// obtaining a copy of this software and associated documentation
+// files (the "Software"), to deal in the Software without
+// restriction, including without limitation the rights to use,
+// copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following
+// conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the
+// Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+// KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+// PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL ALLEN AKIN BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+// AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+// OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+// 
+// END_COPYRIGHT
+
+
+
+
+// timer.h:  Simple benchmark timing utilities
+
+// Timer objects provide a framework for measuring the rate at which an
+// operation can be performed.
+
+
+#ifndef __timer_h__
+#define __timer_h__
+
+
+namespace GLEAN {
+
+class Timer {
+	double overhead;	// Overhead (in seconds) of initial op,
+				// final op, and timer access.
+
+	double chooseRunTime();	// Select a runtime that will reduce random
+				// timing error to an acceptable level.
+
+    public:
+	double getClock();	// Get high resolution wall-clock time, in secs.
+
+	double waitForTick();	// Wait for next clock tick, and return time.
+
+    	void calibrate(		// Determine measurement overhead.
+		void (*initialize)(),
+		void (*finalize)());
+
+	double time(		// Measure rate for a given operation.
+		void (*initialize)(),
+		void (*operation)(),
+		void (*finalize)());
+
+
+	Timer() {overhead = 0.0;}
+}; // class Timer
+
+} // namespace GLEAN
+
+#endif // __timer_h__