6-1.cpp

操作系统试验代码

// 工程vmeminfo
#include <windows.h>
#include <iostream>
#include <shlwapi.h>
#include <iomanip>
#pragma comment(lib, "shlwapi.lib")

void main()
{
    // 首先，让我们获得系统信息
    SYSTEM_INFO si;
    :: ZeroMemory(&si, sizeof(si) ) ;
    :: GetSystemInfo(&si) ;

    // 使用外壳辅助程序对一些尺寸进行格式化
    TCHAR szPageSize[MAX_PATH];
    ::StrFormatByteSize(si.dwPageSize, szPageSize, MAX_PATH) ;

    DWORD dwMemSize = (DWORD)si.lpMaximumApplicationAddress -
          (DWORD) si.lpMinimumApplicationAddress;
    TCHAR szMemSize [MAX_PATH] ;
    :: StrFormatByteSize(dwMemSize, szMemSize, MAX_PATH) ;

    // 将内存信息显示出来
    std :: cout << "Virtual memory page size: " << szPageSize << std :: endl;

    std :: cout.fill ('0') ;
    std :: cout << "Minimum application address: 0x"
            << std :: hex << std :: setw(8)
            << (DWORD) si.lpMinimumApplicationAddress
            << std :: endl;
    std :: cout << "Maximum application address: 0x"
            << std :: hex << std :: setw(8)
            << (DWORD) si.lpMaximumApplicationAddress
            << std :: endl;

    std :: cout << "Total available virtual memory: "
            << szMemSize << std :: endl ;
}