Code clean-up and refactoring + better argument checking + use std::string where appropriate.
This commit is contained in:
parent
3482a86f7e
commit
b29af3da73
@ -34,10 +34,16 @@
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#define VERSION_MAJOR 1
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#define VERSION_MINOR 3
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#define EXEC_LOOPS 10
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#define WARMUP_LOOPS 3
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#define DEFAULT_EXEC_LOOPS 10
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#define DEFAULT_WARMUP_LOOPS 3
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#define DEFAULT_LOGFILE _T("TimedExec.log")
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#define ENABLE_ENV_VARS true
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#define LOG_FILE _T("TimedExec.log")
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#ifdef _UNICODE
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#define tstring std::wstring
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#else
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#define tstring std::string
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#endif
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static HANDLE g_hAbortEvent = NULL;
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static volatile bool g_aborted = false;
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@ -46,10 +52,20 @@ static volatile bool g_aborted = false;
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// INTERNAL FUNCTIONS
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// =============================================================================================================
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static bool getEnvVariable(const _TCHAR *const name, _TCHAR *const buffer, size_t buffSize)
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static bool getEnvVariable(const _TCHAR *const name, tstring &value)
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{
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const DWORD ret = GetEnvironmentVariable(name, buffer, buffSize);
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return ((ret > 0) && (ret < buffSize));
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const size_t BUFF_SIZE = 512;
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_TCHAR buffer[BUFF_SIZE];
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const DWORD ret = GetEnvironmentVariable(name, buffer, BUFF_SIZE);
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if((ret > 0) && (ret < BUFF_SIZE))
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{
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value = buffer;
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return true;
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}
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value.clear();
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return false;
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}
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static LONGLONG getCurrentTime(void)
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@ -57,8 +73,8 @@ static LONGLONG getCurrentTime(void)
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LARGE_INTEGER timeValue;
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if(!QueryPerformanceCounter(&timeValue))
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{
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std::cerr << "\nTimedExec: Failed to query performance counter!\n" << std::endl;
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exit(EXIT_FAILURE);
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std::cerr << "\n\nSYSTEM ERROR: Failed to query performance counter!\n" << std::endl;
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_exit(EXIT_FAILURE);
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}
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return timeValue.QuadPart;
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}
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@ -68,20 +84,110 @@ static LONGLONG getTimerFrequency(void)
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LARGE_INTEGER timeValue;
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if(!QueryPerformanceFrequency(&timeValue))
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{
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std::cerr << "\nTimedExec: Failed to query performance counter!\n" << std::endl;
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exit(EXIT_FAILURE);
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std::cerr << "\n\nSYSTEM ERROR: Failed to query performance counter frequency!\n" << std::endl;
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_exit(EXIT_FAILURE);
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}
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return timeValue.QuadPart;
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}
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static bool createProcess(_TCHAR *const commandLine, HANDLE &hThrd, HANDLE &hProc, const bool suspended = false)
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static long long getCurrentFileSize(FILE *const filePtr)
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{
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struct _stati64 stats;
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if(_fstati64(_fileno(filePtr), &stats) == 0)
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{
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return stats.st_size;
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}
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return -1;
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}
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static bool checkBinary(const tstring &filePath)
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{
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DWORD binaryType;
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return GetBinaryType(filePath.c_str(), &binaryType) ? true : false;
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}
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static tstring getFullPath(const _TCHAR *const fileName)
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{
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const size_t BUFF_SIZE = 512;
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_TCHAR buffer[BUFF_SIZE];
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const DWORD ret = GetFullPathName(fileName, BUFF_SIZE, buffer, NULL);
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if((ret > 0) && (ret < BUFF_SIZE))
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{
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return tstring(buffer);
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}
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return tstring(fileName);
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}
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static int initializeCommandLine(tstring &commandLine, tstring &programFile)
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{
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commandLine.clear();
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programFile.clear();
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int nArgs = 0;
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TCHAR **szArglist = CommandLineToArgvW(GetCommandLine(), &nArgs);
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if((szArglist == NULL) || (nArgs < 2))
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{
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return 0;
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}
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for(int i = 1; i < nArgs; i++)
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{
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tstring token;
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if(i > 1)
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{
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token = tstring(szArglist[i]);
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commandLine += _T(' ');
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}
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else
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{
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token = getFullPath(szArglist[i]);
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programFile += token;
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}
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if(token.find(' ') == tstring::npos)
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{
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commandLine += token;
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}
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else
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{
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commandLine += _T('"');
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commandLine += token;
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commandLine += _T('"');
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}
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}
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LocalFree(szArglist);
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return nArgs;
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}
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static tstring getFileNameOnly(const tstring &filePath)
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{
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tstring result(filePath);
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static _TCHAR *FILTER = _T(":?*/\\<>|");
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for(size_t i = 0; FILTER[i]; i++)
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{
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size_t pos;
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if((pos = result.rfind(FILTER[i])) != tstring::npos)
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{
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result.erase(0, pos);
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}
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}
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return result;
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}
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static bool createProcess(const tstring &commandLine, HANDLE &hThrd, HANDLE &hProc, const bool suspended = false)
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{
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STARTUPINFO startInfo;
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SecureZeroMemory(&startInfo, sizeof(STARTUPINFO));
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PROCESS_INFORMATION processInfo;
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SecureZeroMemory(&processInfo, sizeof(PROCESS_INFORMATION));
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if(!CreateProcess(NULL, commandLine, NULL, NULL, false, HIGH_PRIORITY_CLASS | (suspended ? CREATE_SUSPENDED : 0), NULL, NULL, &startInfo, &processInfo))
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if(!CreateProcess(NULL, (LPTSTR)commandLine.c_str(), NULL, NULL, false, HIGH_PRIORITY_CLASS | (suspended ? CREATE_SUSPENDED : 0), NULL, NULL, &startInfo, &processInfo))
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{
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return false;
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}
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@ -165,76 +271,61 @@ static int timedExecMain(int argc, _TCHAR* argv[])
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/* Check Command-Line */
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/* ---------------------------------------------------------- */
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TCHAR *fullCommandLine = GetCommandLine();
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int nArgs = 0;
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TCHAR **szArglist = CommandLineToArgvW(fullCommandLine, &nArgs);
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if(szArglist == NULL)
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{
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std::cerr << std::endl << "Internal error: Initialization failed!" << std::endl;
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return EXIT_FAILURE;
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}
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if(nArgs < 2)
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tstring commandLine, programFile;
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if(initializeCommandLine(commandLine, programFile) < 2)
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{
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std::cerr << "Usage:" << std::endl;
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std::cerr << " TimedExec.exe <Program.exe> [Arguments]\n" << std::endl;
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std::cerr << "Influential environment variables:" << std::endl;
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std::cerr << " TIMED_EXEC_LOGFILE - Log File (default: \"" << LOG_FILE << "\")" << std::endl;
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std::cerr << " TIMED_EXEC_PASSES - Number of execution passes (default: " << EXEC_LOOPS << ")" << std::endl;
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std::cerr << " TIMED_WARMUP_PASSES - Number of warm-up passes (default: " << WARMUP_LOOPS << ")\n" << std::endl;
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std::cerr << " TIMED_EXEC_LOGFILE - Log File (default: \"" << DEFAULT_LOGFILE << "\")" << std::endl;
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std::cerr << " TIMED_EXEC_PASSES - Number of execution passes (default: " << DEFAULT_EXEC_LOOPS << ")" << std::endl;
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std::cerr << " TIMED_WARMUP_PASSES - Number of warm-up passes (default: " << DEFAULT_WARMUP_LOOPS << ")\n" << std::endl;
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return EXIT_FAILURE;
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}
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int len = std::max(_tcslen(fullCommandLine) + 1U, 4096U);
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TCHAR *myCommandLine = (TCHAR*) _alloca(sizeof(TCHAR) * len);
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myCommandLine[0] = _T('\0');
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for(int i = 1; i < nArgs; i++)
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if(_taccess(programFile.c_str(), 0) != 0)
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{
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if(i > 1)
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{
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_tcsncat_s(myCommandLine, len, _T(" "), _TRUNCATE);
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}
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if(_tcschr(szArglist[i], _T(' ')) == NULL)
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{
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_tcsncat_s(myCommandLine, len, szArglist[i], _TRUNCATE);
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}
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else
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{
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_tcsncat_s(myCommandLine, len, _T("\""), _TRUNCATE);
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_tcsncat_s(myCommandLine, len, szArglist[i], _TRUNCATE);
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_tcsncat_s(myCommandLine, len, _T("\""), _TRUNCATE);
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}
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_ftprintf(stderr, _T("Specified program file could not be found or access denied:\n%s\n\n"), programFile.c_str());
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return EXIT_FAILURE;
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}
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if(!checkBinary(programFile))
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{
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_ftprintf(stderr, _T("Specified file does not look like a valid Win32 executable:\n%s\n\n"), programFile.c_str());
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return EXIT_FAILURE;
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}
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/* ---------------------------------------------------------- */
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/* Check Environment Variables */
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/* ---------------------------------------------------------- */
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TCHAR temp[MAX_PATH], logFile[MAX_PATH];
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int maxLoops = EXEC_LOOPS, warmupLoops = WARMUP_LOOPS;
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_tcsncpy_s(logFile, MAX_PATH, LOG_FILE, _TRUNCATE);
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tstring logFile(DEFAULT_LOGFILE);
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int maxPasses = DEFAULT_EXEC_LOOPS, maxWarmUpPasses = DEFAULT_WARMUP_LOOPS;
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if(getEnvVariable(_T("TIMED_EXEC_PASSES"), temp, MAX_PATH))
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if(ENABLE_ENV_VARS)
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{
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maxLoops = std::max(3, _tstoi(temp));
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}
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if(getEnvVariable(_T("TIMED_WARMUP_PASSES"), temp, MAX_PATH))
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{
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warmupLoops = std::max(0, _tstoi(temp));
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}
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if(getEnvVariable(_T("TIMED_EXEC_LOGFILE"), temp, MAX_PATH))
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{
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_tcsncpy_s(logFile, MAX_PATH, temp, _TRUNCATE);
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tstring temp;
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if(getEnvVariable(_T("TIMED_EXEC_PASSES"), temp))
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{
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maxPasses = std::max(3, _tstoi(temp.c_str()));
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}
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if(getEnvVariable(_T("TIMED_WARMUP_PASSES"), temp))
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{
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maxWarmUpPasses = std::max(0, _tstoi(temp.c_str()));
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}
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if(getEnvVariable(_T("TIMED_EXEC_LOGFILE"), temp))
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{
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logFile.swap(temp);
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}
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}
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/* ---------------------------------------------------------- */
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/* Initialization */
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/* ---------------------------------------------------------- */
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_ftprintf(stderr, _T("Command-line:\n%s\n"), myCommandLine);
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_ftprintf(stderr, _T("Command-line:\n%s\n\n"), commandLine.c_str());
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_ftprintf(stderr, _T("Log File:\n%s\n\n"), logFile.c_str());
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std::cerr << "Number of Warm-Up/Metering passes: " << maxPasses << "x / " << maxWarmUpPasses << 'x' << std::endl;
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const LONGLONG timerFrequency = getTimerFrequency();
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if(!SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS))
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@ -245,33 +336,32 @@ static int timedExecMain(int argc, _TCHAR* argv[])
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}
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}
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double slowestResult = 0.0;
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double fastestResult = DBL_MAX;
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double meanResult = 0.0;
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double variance = 0.0;
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double stats_mean = 0.0;
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double stats_variance = 0.0;
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double stats_fastest = DBL_MAX;
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double stats_slowest = 0.0;
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/* ---------------------------------------------------------- */
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/* Run Warm-Up Passes */
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/* ---------------------------------------------------------- */
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for(int loop = 0; loop < warmupLoops; loop++)
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for(int pass = 0; pass < maxWarmUpPasses; pass++)
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{
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std::cerr << "\n===========================================================================" << std::endl;
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std::cerr << "WARM-UP PASS " << (loop + 1) << " OF " << warmupLoops << std::endl;
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std::cerr << "WARM-UP PASS " << (pass + 1) << " OF " << maxWarmUpPasses << std::endl;
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std::cerr << "===========================================================================\n" << std::endl;
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HANDLE hThrd, hProc;
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if(!createProcess(myCommandLine, hThrd, hProc))
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if(!createProcess(commandLine, hThrd, hProc))
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{
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std::cerr << "\nTimedExec: Failed to create process!" << std::endl;
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std::cerr << "\n\nSYSTEM ERROR: Failed to create process!\n" << std::endl;
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return EXIT_FAILURE;
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}
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if(!waitForProcess(hProc))
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{
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std::cerr << "\nTimedExec: Failed to wait for process termination!" << std::endl;
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std::cerr << "\n\nSYSTEM ERROR: Failed to wait for process termination!\n" << std::endl;
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return EXIT_FAILURE;
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}
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@ -289,17 +379,17 @@ static int timedExecMain(int argc, _TCHAR* argv[])
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/* Run Execution Passes */
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/* ---------------------------------------------------------- */
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for(int loop = 0; loop < maxLoops; loop++)
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for(int pass = 0; pass < maxPasses; pass++)
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{
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std::cerr << "\n===========================================================================" << std::endl;
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std::cerr << "EXECUTION PASS " << (loop + 1) << " OF " << maxLoops << std::endl;
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std::cerr << "METERING PASS " << (pass + 1) << " OF " << maxPasses << std::endl;
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std::cerr << "===========================================================================\n" << std::endl;
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HANDLE hThrd, hProc;
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if(!createProcess(myCommandLine, hThrd, hProc, true))
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if(!createProcess(commandLine, hThrd, hProc, true))
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{
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std::cerr << "\nTimedExec: Failed to create process!" << std::endl;
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std::cerr << "\n\nSYSTEM ERROR: Failed to create process!\n" << std::endl;
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return EXIT_FAILURE;
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}
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@ -307,13 +397,14 @@ static int timedExecMain(int argc, _TCHAR* argv[])
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if(ResumeThread(hThrd) == ((DWORD) -1))
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{
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std::cerr << "\nTimedExec: Failed to resume thread!" << std::endl;
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std::cerr << "\n\nSYSTEM ERROR: Failed to resume child process!\n" << std::endl;
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TerminateProcess(hProc, UINT(-1));
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return EXIT_FAILURE;
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}
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if(!waitForProcess(hProc))
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{
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std::cerr << "\nTimedExec: Failed to wait for process termination!" << std::endl;
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std::cerr << "\n\nSYSTEM ERROR: Failed to wait for process termination!\n" << std::endl;
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return EXIT_FAILURE;
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}
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@ -333,38 +424,41 @@ static int timedExecMain(int argc, _TCHAR* argv[])
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std::cerr << "\n--> Execution took " << execTime << " seconds." << std::endl;
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std::cerr.copyfmt(initFmt);
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if(execTime > slowestResult) slowestResult = execTime;
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if(execTime < fastestResult) fastestResult = execTime;
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if(execTime > stats_slowest) stats_slowest = execTime;
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if(execTime < stats_fastest) stats_fastest = execTime;
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const double delta = execTime - meanResult;
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meanResult += delta / double(loop + 1);
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variance += delta * (execTime - meanResult);
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// Iterative "online" computation of the mean and the variance
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// See http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Online_algorithm for details!
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const double delta = execTime - stats_mean;
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stats_mean += delta / double(pass + 1);
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stats_variance += delta * (execTime - stats_mean);
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}
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variance /= double(maxLoops - 1);
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stats_variance /= double(maxPasses - 1);
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/* ---------------------------------------------------------- */
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/* Print Results */
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/* ---------------------------------------------------------- */
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const double standardDeviation = sqrt(variance);
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const double standardError = standardDeviation / sqrt(double(maxLoops - 1));
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// Compute the "standard error" and the "confidence" intervalls for our measurement
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// See http://www.uni-siegen.de/phil/sozialwissenschaften/soziologie/mitarbeiter/ludwig-mayerhofer/statistik/statistik_downloads/konfidenzintervalle.pdf for details!
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const double standardDeviation = sqrt(stats_variance);
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const double standardError = standardDeviation / sqrt(double(maxPasses - 1));
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const double confidenceInterval_90 = 1.645 * standardError;
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const double confidenceInterval_95 = 1.960 * standardError;
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const double confidenceInterval_99 = 2.576 * standardError;
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std::cerr << std::setprecision(3) << std::fixed;
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std::cerr << "\n===========================================================================" << std::endl;
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std::cerr << "TEST COMPLETED SUCCESSFULLY AFTER " << maxLoops << " EXECUTION PASSES" << std::endl;
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std::cerr << "TEST COMPLETED SUCCESSFULLY AFTER " << maxPasses << " METERING PASSES" << std::endl;
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std::cerr << "---------------------------------------------------------------------------" << std::endl;
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std::cerr << "Mean Execution Time : " << meanResult << " seconds" << std::endl;
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std::cerr << "90% Confidence Interval : +/- " << confidenceInterval_90 << " = [" << (meanResult - confidenceInterval_90) << ", " << (meanResult + confidenceInterval_90) << "] seconds" << std::endl;
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std::cerr << "95% Confidence Interval : +/- " << confidenceInterval_95 << " = [" << (meanResult - confidenceInterval_95) << ", " << (meanResult + confidenceInterval_95) << "] seconds" << std::endl;
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std::cerr << "99% Confidence Interval : +/- " << confidenceInterval_99 << " = [" << (meanResult - confidenceInterval_99) << ", " << (meanResult + confidenceInterval_99) << "] seconds" << std::endl;
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std::cerr << "Mean Execution Time : " << stats_mean << " seconds" << std::endl;
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std::cerr << "90% Confidence Interval : +/- " << confidenceInterval_90 << " = [" << (stats_mean - confidenceInterval_90) << ", " << (stats_mean + confidenceInterval_90) << "] seconds" << std::endl;
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std::cerr << "95% Confidence Interval : +/- " << confidenceInterval_95 << " = [" << (stats_mean - confidenceInterval_95) << ", " << (stats_mean + confidenceInterval_95) << "] seconds" << std::endl;
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std::cerr << "99% Confidence Interval : +/- " << confidenceInterval_99 << " = [" << (stats_mean - confidenceInterval_99) << ", " << (stats_mean + confidenceInterval_99) << "] seconds" << std::endl;
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std::cerr << "Standard Deviation : " << standardDeviation << " seconds" << std::endl;
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std::cerr << "Standard Error : " << standardError << " seconds" << std::endl;
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std::cerr << "Fastest / Slowest Pass : " << fastestResult << " / " << slowestResult << " seconds" << std::endl;
|
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std::cerr << "Fastest / Slowest Pass : " << stats_fastest << " / " << stats_slowest << " seconds" << std::endl;
|
||||
std::cerr << "===========================================================================\n" << std::endl;
|
||||
std::cerr.copyfmt(initFmt);
|
||||
|
||||
@ -373,20 +467,13 @@ static int timedExecMain(int argc, _TCHAR* argv[])
|
||||
/* ---------------------------------------------------------- */
|
||||
|
||||
FILE *fLog = NULL;
|
||||
if(_tfopen_s(&fLog, logFile, _T("a+")) == 0)
|
||||
if(_tfopen_s(&fLog, logFile.c_str(), _T("a+")) == 0)
|
||||
{
|
||||
struct _stati64 stats;
|
||||
if(_fstati64(_fileno(fLog), &stats) == 0)
|
||||
if(getCurrentFileSize(fLog) == 0)
|
||||
{
|
||||
if(stats.st_size == 0)
|
||||
{
|
||||
_ftprintf_s(fLog, _T("%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n"), _T("Program"), _T("Passes"), _T("Mean Time"), _T("90% Confidence Interval"), _T("95% Confidence Interval"), _T("99% Confidence Interval"), _T("Fastest Pass"), _T("Slowest Pass"), _T("Standard Deviation"), _T("Standard Error"), _T("Command"));
|
||||
}
|
||||
_ftprintf_s(fLog, _T("%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n"), _T("Program"), _T("Passes"), _T("Mean Time"), _T("90% Confidence Interval"), _T("95% Confidence Interval"), _T("99% Confidence Interval"), _T("Fastest Pass"), _T("Slowest Pass"), _T("Standard Deviation"), _T("Standard Error"), _T("Command"));
|
||||
}
|
||||
_tcsncpy_s(temp, MAX_PATH, szArglist[1], _TRUNCATE);
|
||||
TCHAR *ctx, *exeName = _tcstok_s(temp, _T(":/\\"), &ctx);
|
||||
while(TCHAR *tok = _tcstok_s(NULL, _T(":/\\"), &ctx)) exeName = tok;
|
||||
_ftprintf_s(fLog, _T("%s\t%d\t%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\t%s\n"), exeName, maxLoops, meanResult, confidenceInterval_90, confidenceInterval_95, confidenceInterval_99, fastestResult, slowestResult, standardDeviation, standardError, myCommandLine);
|
||||
_ftprintf_s(fLog, _T("%s\t%d\t%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\t%s\n"), getFileNameOnly(programFile).c_str(), maxPasses, stats_mean, confidenceInterval_90, confidenceInterval_95, confidenceInterval_99, stats_fastest, stats_slowest, standardDeviation, standardError, commandLine.c_str());
|
||||
fclose(fLog); fLog = NULL;
|
||||
}
|
||||
else
|
||||
@ -395,10 +482,9 @@ static int timedExecMain(int argc, _TCHAR* argv[])
|
||||
}
|
||||
|
||||
/* ---------------------------------------------------------- */
|
||||
/* Final Clean-up */
|
||||
/* Goodbye! */
|
||||
/* ---------------------------------------------------------- */
|
||||
|
||||
LocalFree(szArglist);
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user