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Copy pathConsoleApplication.cpp
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125 lines (106 loc) · 3.47 KB
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// Copyright (c) Microsoft. All rights reserved.
// ConsoleApplication.cpp : Defines the entry point for the console application.
//
#include "pch.h"
#include <windows.h>
#include <chrono>
#include <thread>
using namespace std;
// Use to convert bytes to KB
#define DIV 1024
// Specify the width of the field in which to print the numbers.
#define MESSAGE_WIDTH 30
#define NUMERIC_WIDTH 10
void printMessage(LPCSTR msg, bool addColon)
{
cout.width(MESSAGE_WIDTH);
cout << msg;
if (addColon)
{
cout << " : ";
}
}
void printMessageLine(LPCSTR msg)
{
printMessage(msg, false);
cout << endl;
}
void printMessageLine(LPCSTR msg, DWORD value)
{
printMessage(msg, true);
cout.width(NUMERIC_WIDTH);
cout << right << value << endl;
}
void printMessageLine(LPCSTR msg, DWORDLONG value)
{
printMessage(msg, true);
cout.width(NUMERIC_WIDTH);
cout << right << value << endl;
}
void checkInput(HANDLE exitEvent)
{
for (;;)
{
char character;
cin.get(character);
if (character == 'q')
{
::SetEvent(exitEvent);
break;
}
}
}
int main(int argc, char **argv)
{
printMessageLine("Starting to monitor memory consumption! Press enter to start monitoring");
printMessageLine("You can press q and enter at anytime to exit");
cin.get();
HANDLE exitEvent = ::CreateEvent(NULL, FALSE, FALSE, NULL);
if (NULL == exitEvent)
{
printMessageLine("Failed to create exitEvent.");
return -1;
}
std::thread inputThread(checkInput, exitEvent);
for (;;)
{
MEMORYSTATUSEX statex;
statex.dwLength = sizeof(statex);
BOOL success = ::GlobalMemoryStatusEx(&statex);
if (!success)
{
DWORD error = GetLastError();
printMessageLine("*************************************************");
printMessageLine("Error getting memory information", error);
printMessageLine("*************************************************");
}
else
{
DWORD load = statex.dwMemoryLoad;
DWORDLONG physKb = statex.ullTotalPhys / DIV;
DWORDLONG freePhysKb = statex.ullAvailPhys / DIV;
DWORDLONG pageKb = statex.ullTotalPageFile / DIV;
DWORDLONG freePageKb = statex.ullAvailPageFile / DIV;
DWORDLONG virtualKb = statex.ullTotalVirtual / DIV;
DWORDLONG freeVirtualKb = statex.ullAvailVirtual / DIV;
DWORDLONG freeExtKb = statex.ullAvailExtendedVirtual / DIV;
printMessageLine("*************************************************");
printMessageLine("Percent of memory in use", load);
printMessageLine("KB of physical memory", physKb);
printMessageLine("KB of free physical memory", freePhysKb);
printMessageLine("KB of paging file", pageKb);
printMessageLine("KB of free paging file", freePageKb);
printMessageLine("KB of virtual memory", virtualKb);
printMessageLine("KB of free virtual memory", freeVirtualKb);
printMessageLine("KB of free extended memory", freeExtKb);
printMessageLine("*************************************************");
}
if (WAIT_OBJECT_0 == ::WaitForSingleObject(exitEvent, 100))
{
break;
}
}
inputThread.join();
::CloseHandle(exitEvent);
printMessageLine("No longer monitoring memory consumption!");
}