Windows内存清理工具实现（含源码及程序）

// RAMCleaner.cpp : 定义控制台应用程序的入口点。 // #include "stdafx.h" //使用EmptyWorkingSet/SetProcessWorkingSetSize清理系统内存 //注：一切只是一个假象，将程序工作内存写入Windows的页面文件中反而会导致系统变慢 #define MB_UNIT #if defined KB_UNIT #define DIV (1024ULL) #define WIDTH 10 #elif defined MB_UNIT #define DIV (1024ULL * 1024ULL) #define WIDTH 7 #elif defined GB_UNIT #define DIV (1024ULL * 1024ULL * 1024ULL) #define WIDTH 4 #else #error One of KB_UNIT, MB_UNIT, GB_UNIT needs to be defined! #endif void PrintMemoryStatus() { MEMORYSTATUSEX statex; statex.dwLength = sizeof(statex); if (::GlobalMemoryStatusEx(&statex)) { #if defined KB_UNIT _tprintf(_T("There is %*ld percent of memory in use.\n"), WIDTH, statex.dwMemoryLoad); _tprintf(_T("There are %*I64d total KB of physical memory.\n"), WIDTH, statex.ullTotalPhys / DIV); _tprintf(_T("There are %*I64d free KB of physical memory.\n"), WIDTH, statex.ullAvailPhys / DIV); _tprintf(_T("There are %*I64d total KB of paging file.\n"), WIDTH, statex.ullTotalPageFile / DIV); _tprintf(_T("There are %*I64d free KB of paging file.\n"), WIDTH, statex.ullAvailPageFile / DIV); _tprintf(_T("There are %*I64d total KB of virtual memory.\n"), WIDTH, statex.ullTotalVirtual / DIV); _tprintf(_T("There are %*I64d free KB of virtual memory.\n"), WIDTH, statex.ullAvailVirtual / DIV); //_tprintf(_T("There are %*I64d free KB of extended memory.\n"), WIDTH, statex.ullAvailExtendedVirtual / DIV); #elif defined MB_UNIT _tprintf(_T("There is %*ld percent of memory in use.\n"), WIDTH, statex.dwMemoryLoad); _tprintf(_T("There are %*I64d total MB of physical memory.\n"), WIDTH, statex.ullTotalPhys / DIV); _tprintf(_T("There are %*I64d free MB of physical memory.\n"), WIDTH, statex.ullAvailPhys / DIV); _tprintf(_T("There are %*I64d total MB of paging file.\n"), WIDTH, statex.ullTotalPageFile / DIV); _tprintf(_T("There are %*I64d free MB of paging file.\n"), WIDTH, statex.ullAvailPageFile / DIV); _tprintf(_T("There are %*I64d total MB of virtual memory.\n"), WIDTH, statex.ullTotalVirtual / DIV); _tprintf(_T("There are %*I64d free MB of virtual memory.\n"), WIDTH, statex.ullAvailVirtual / DIV); //_tprintf(_T("There are %*I64d free MB of extended memory.\n"), WIDTH, statex.ullAvailExtendedVirtual / DIV); #elif defined GB_UNIT _tprintf(_T("There is %*ld percent of memory in use.\n"), WIDTH, statex.dwMemoryLoad); _tprintf(_T("There are %*I64d total GB of physical memory.\n"), WIDTH, statex.ullTotalPhys / DIV); _tprintf(_T("There are %*I64d free GB of physical memory.\n"), WIDTH, statex.ullAvailPhys / DIV); _tprintf(_T("There are %*I64d total GB of paging file.\n"), WIDTH, statex.ullTotalPageFile / DIV); _tprintf(_T("There are %*I64d free GB of paging file.\n"), WIDTH, statex.ullAvailPageFile / DIV); _tprintf(_T("There are %*I64d total GB of virtual memory.\n"), WIDTH, statex.ullTotalVirtual / DIV); _tprintf(_T("There are %*I64d free GB of virtual memory.\n"), WIDTH, statex.ullAvailVirtual / DIV); //_tprintf(_T("There are %*I64d free GB of extended memory.\n"), WIDTH, statex.ullAvailExtendedVirtual / DIV); #endif _tprintf(_T("\n")); } else { _tprintf(_T("GlobalMemoryStatusEx Failed!\n\n")); } } BOOL EnableDebugPrivilege() { BOOL bRet = FALSE; HANDLE hToken; if (::OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES, &hToken)) { LUID luid; if (::LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &luid)) { TOKEN_PRIVILEGES tp; tp.PrivilegeCount = 1; tp.Privileges[0].Luid = luid; tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; if (::AdjustTokenPrivileges(hToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), NULL, NULL)) { bRet = TRUE; } } ::CloseHandle(hToken); } return bRet; } BOOL EmptyAllProcess() { BOOL bRet = FALSE; HANDLE hProcessSnap = ::CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); if (hProcessSnap != INVALID_HANDLE_VALUE) { PROCESSENTRY32 pe32; pe32.dwSize = sizeof(PROCESSENTRY32); if (::Process32First(hProcessSnap, &pe32)) { do { HANDLE hProcess = ::OpenProcess(PROCESS_ALL_ACCESS, FALSE, pe32.th32ProcessID); if (hProcess) { ::SetProcessWorkingSetSize(hProcess, (SIZE_T)-1, (SIZE_T)-1); ::CloseHandle(hProcess); } } while (::Process32Next(hProcessSnap, &pe32)); bRet = TRUE; } ::CloseHandle(hProcessSnap); } return bRet; } int main() { HICON hIcon = ::LoadIcon(::GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_ICON1)); HWND hWnd = ::GetConsoleWindow(); ::SendMessage(hWnd, WM_SETICON, ICON_SMALL, (LPARAM)hIcon); ::SendMessage(hWnd, WM_SETICON, ICON_BIG, (LPARAM)hIcon); _tprintf(_T("Before Cleaning:\n")); PrintMemoryStatus(); LARGE_INTEGER t1, t2, tc; ::QueryPerformanceFrequency(&tc); ::QueryPerformanceCounter(&t1); EnableDebugPrivilege(); BOOL bRet = EmptyAllProcess(); ::QueryPerformanceCounter(&t2); if (bRet) { _tprintf(_T("Clean Completed, in %lf seconds!\n\n"), (double)(t2.QuadPart - t1.QuadPart) / (double)tc.QuadPart); _tprintf(_T("After Cleaning:\n")); PrintMemoryStatus(); } else { _tprintf(_T("Clean Failed!\n\n")); } system("pause"); return 0; }