Initial commits of the sharedDebug and sharedMemoryManager projects

engine/shared/library/sharedDebug/src/linux/PerformanceTimer.cpp

@@ -0,0 +1,125 @@
+//=================================================================== //
+//
+// PerformanceTimer.cpp
+// copyright 2000-2004 Sony Online Entertainment
+// All Rights Reserved
+//
+//===================================================================
+
+#include "sharedFoundation/FirstSharedFoundation.h"
+#include "sharedDebug/PerformanceTimer.h"
+
+//===================================================================
+
+#include <cstdio>
+
+//===================================================================
+
+void PerformanceTimer::install()
+{
+}
+
+//-------------------------------------------------------------------
+
+PerformanceTimer::PerformanceTimer()
+{
+	startTime.tv_sec = 0;
+	startTime.tv_usec = 0;
+	stopTime.tv_sec = 0;
+	stopTime.tv_usec = 0;
+}
+
+//-------------------------------------------------------------------
+
+PerformanceTimer::~PerformanceTimer()
+{
+}
+
+//-------------------------------------------------------------------
+
+void PerformanceTimer::start()
+{
+	int const result = gettimeofday(&startTime, NULL);
+	FATAL(result != 0,("PerformanceTimer::start failed"));
+}
+
+//-------------------------------------------------------------------
+
+void PerformanceTimer::resume()
+{
+	long sec = stopTime.tv_sec - startTime.tv_sec;
+	long usec = stopTime.tv_usec - startTime.tv_usec;
+	if(usec < 0)
+	{
+	  --sec;
+	  usec += 1000000;
+	}
+
+	int const result = gettimeofday(&startTime, NULL);
+	FATAL(result != 0,("PerformanceTimer::resume failed"));
+
+	startTime.tv_sec -= sec;
+	startTime.tv_usec -= usec;
+	if(startTime.tv_usec < 0)
+	{
+	  --startTime.tv_sec;
+	  startTime.tv_usec += 1000000;
+	}
+}
+
+//-------------------------------------------------------------------
+
+void PerformanceTimer::stop()
+{
+	int  result = gettimeofday(&stopTime, NULL);
+	FATAL(result != 0,("PerformanceTimer::start failed"));
+}
+
+//-------------------------------------------------------------------
+
+float PerformanceTimer::getElapsedTime() const
+{
+	long sec = stopTime.tv_sec - startTime.tv_sec;
+	long usec = stopTime.tv_usec - startTime.tv_usec;
+	if(usec < 0)
+	{
+	  --sec;
+	  usec += 1000000;
+	}
+	return static_cast<float>(sec) +(static_cast<float>(usec) / 1000000.0f);
+}
+
+//-------------------------------------------------------------------
+
+float PerformanceTimer::getSplitTime() const
+{
+	timeval currentTime;
+
+	int const result = gettimeofday(&currentTime, NULL);
+	FATAL(result != 0,("PerformanceTimer::getSplitTime failed"));
+
+	long sec = currentTime.tv_sec - startTime.tv_sec;
+	long usec = currentTime.tv_usec - startTime.tv_usec;
+	if(usec < 0)
+	{
+	  --sec;
+	  usec += 1000000;
+	}
+
+	return static_cast<float>(sec) +(static_cast<float>(usec) / 1000000.0f);
+}
+
+//-------------------------------------------------------------------
+
+void PerformanceTimer::logElapsedTime(const char* string) const
+{
+	UNREF(string);
+
+#ifdef _DEBUG
+	static char buffer [1000];
+	sprintf(buffer, "%s : %1.5f seconds\n", string ? string : "null", getElapsedTime());
+	DEBUG_REPORT_LOG_PRINT(true, ("%s", buffer));
+#endif
+}
+
+//-------------------------------------------------------------------