Added TaskManager app

engine/server/application/TaskManager/src/win32/TaskManagerSysInfo.cpp

@@ -0,0 +1,147 @@
+// TaskManagerSysInfo.cpp
+// Copyright 2000-02, Sony Online Entertainment Inc., all rights reserved. 
+// Author: Justin Randall
+
+//-----------------------------------------------------------------------
+
+#include "FirstTaskManager.h"
+#include "TaskManagerSysInfo.h"
+#pragma warning ( disable : 4201)
+#include <windows.h>
+#include <tlhelp32.h>
+//-----------------------------------------------------------------------
+
+TaskManagerSysInfo::TaskManagerSysInfo() :
+averageScore()
+{
+	update();
+}
+
+//-----------------------------------------------------------------------
+
+TaskManagerSysInfo::TaskManagerSysInfo(const TaskManagerSysInfo &)
+{
+
+}
+
+//-----------------------------------------------------------------------
+
+TaskManagerSysInfo::~TaskManagerSysInfo()
+{
+}
+
+//-----------------------------------------------------------------------
+
+TaskManagerSysInfo & TaskManagerSysInfo::operator = (const TaskManagerSysInfo & rhs)
+{
+	if(this != &rhs)
+	{
+		// make assignments if right hand side is not this instance
+	}
+	return *this;
+}
+
+//-----------------------------------------------------------------------
+
+const float TaskManagerSysInfo::getScore() const
+{
+	std::list<float>::const_iterator i;
+	float avg = 0.0f;
+	for(i = averageScore.begin(); i != averageScore.end(); ++i)
+	{
+		avg += (*i);
+	}
+	avg = avg / averageScore.size();
+	return avg;
+}
+
+//-----------------------------------------------------------------------
+
+void TaskManagerSysInfo::update()
+{
+	static int64 activeTime[2] = {0};
+	static int64 currentTime[2] = {0};
+
+	float currentScore = 0.0f;
+	activeTime[0] = activeTime[1];
+	currentTime[0] = currentTime[1];
+	activeTime[1] = 0;
+
+	HANDLE hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPALL, 0);
+	double procAvg = 0.0f;
+
+	MEMORYSTATUS memStat;
+	GlobalMemoryStatus(&memStat);
+	
+	currentScore = static_cast<float>(static_cast<float>(memStat.dwMemoryLoad) * 0.005f);
+	if(hProcessSnap != INVALID_HANDLE_VALUE)
+	{
+		PROCESSENTRY32 pe32 = {0};
+		pe32.dwSize = sizeof(PROCESSENTRY32);
+		if (Process32First(hProcessSnap, &pe32)) 
+		{ 
+			do 
+			{
+				HANDLE proc = OpenProcess(PROCESS_QUERY_INFORMATION, false, pe32.th32ProcessID);
+				// some stuf with the enumerated processes
+				FILETIME createTime = {0};
+				FILETIME exitTime = {0};
+				FILETIME kernelTime = {0};
+				FILETIME userTime = {0};
+				GetProcessTimes(proc, &createTime, &exitTime, &kernelTime, &userTime);
+				int64 totals;
+				
+				// SDK docs say:
+				// It is not recommended that you add and subtract values 
+				// from the FILETIME structure to obtain relative times. Instead, you should 
+				// Copy the resulting FILETIME structure to a ULARGE_INTEGER structure. 
+				// Use normal 64-bit arithmetic on the ULARGE_INTEGER value. 
+				int64 c;
+				int64 e;
+				int64 k;
+				int64 u;
+				memcpy(&c, &createTime, sizeof(int64));
+				memcpy(&e, &exitTime, sizeof(int64));
+				memcpy(&k, &kernelTime, sizeof(int64));
+				memcpy(&u, &userTime, sizeof(int64));
+				
+				totals = k + u;
+				
+				FILETIME fst;
+				SYSTEMTIME st; 
+				GetSystemTime(&st);
+				SystemTimeToFileTime(&st, &fst);
+
+				int64 runTime;
+				memcpy(&runTime, &fst, sizeof(int64));
+				runTime = runTime - c;
+
+				if(c || e || k || u)
+				{
+					activeTime[1] += k + e;
+				}
+
+			} 
+			while (Process32Next(hProcessSnap, &pe32)); 
+		}
+	}
+
+	FILETIME fst;
+	SYSTEMTIME st; 
+	GetSystemTime(&st);
+	SystemTimeToFileTime(&st, &fst);
+	memcpy(&currentTime[1], &fst, sizeof(int64));
+	int64 timeSlice = currentTime[1] - currentTime[0];
+	int64 activeSlice = activeTime[1] - activeTime[0];
+	procAvg = static_cast<double>(static_cast<double>(activeSlice) / timeSlice);
+	//REPORT_LOG(true, ("%f\n", procAvg));
+	currentScore = currentScore + static_cast<float>(procAvg * 0.5);
+
+	averageScore.insert(averageScore.end(), currentScore);
+
+	if(averageScore.size() > 100)
+		averageScore.erase(averageScore.begin());
+}
+
+//-----------------------------------------------------------------------
+