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dbj_time.c
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dbj_time.c
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/* https://code.google.com/archive/p/time-windows/source/default/source */
/* TimeMem.c - Windows port of Unix time utility */
/* License: MIT */
/*
Taken over by [email protected]
The differences vs the original are mine and (c) 2020 dbj.org
License MIT
ps: I could not find the original author
*/
#define WIN32_LEAN_AND_MEAN
#define STRICT 1
#include <windows.h>
#include <psapi.h>
#include <stdio.h>
#include <stdlib.h>
#pragma region DBJ added
/********************************************************************************************/
/********************************************************************************************/
#ifndef _UNICODE
#error UNICODE builds only please
#endif
#define DBJ_APP_NAME L"dbj_time"
#define DBJ_VER_STRING L"1.5.0"
typedef enum { major = 1, minor = 5, patch = 0 } version ;
#pragma comment( user, "dbj_time [1.5.0] compiled by [email protected] on " __DATE__ " at " __TIME__ )
#include "vt100.h"
static void last_error_message () // unicode
{
wchar_t err[256] = {0};
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), err, 255, NULL);
// wprintf(L"\n%s\n", err);
_putws(err);
}
/********************************************************************************************/
/*
For some reason MSVC's behaviour is to warn about
including this system header.
*/
#pragma warning(disable : 4820)
#pragma warning(push, 1)
#include <io.h>
#pragma warning(pop)
// we need to do runtime since stdout might be redirected or non existent
static void assure_colours(void)
{
if (! (_isatty(_fileno(stdout))) && (_WIN32_WINNT >= _WIN32_WINNT_WIN10))
{
_putws(L"stdout appears to be redirected to a file? Exiting");
exit(EXIT_FAILURE);
}
// ugly! but works
// vt100 init for win10 cmd.exe
system(" ");
}
/********************************************************************************************/
/********************************************************************************************/
#pragma endregion DBJ added
/* Displays usage help for this program. */
static void intro(void)
{
wprintf( VT100_FG_BLUE_BOLD L"%s [%s] ", DBJ_APP_NAME, DBJ_VER_STRING );
wprintf(L"[%S]\n" VT100_RESET , __DATE__ );
}
static void usage(void)
{
wprintf(L"Usage: " DBJ_APP_NAME L" executable [args...]\n\n");
}
/* Converts FILETIME to ULONGLONG. */
static ULONGLONG convert_file_time(const FILETIME *t)
{
ULARGE_INTEGER i;
CopyMemory(&i, t, sizeof(ULARGE_INTEGER));
return i.QuadPart;
}
/* Displays information about a process. */
static int display_process_info(HANDLE hProcess)
{
DWORD dwExitCode;
FILETIME ftCreation, ftExit, ftKernel, ftUser;
double tElapsed, tKernel, tUser;
PROCESS_MEMORY_COUNTERS pmc = { sizeof(PROCESS_MEMORY_COUNTERS) };
/* Exit code */
if (!GetExitCodeProcess(hProcess, &dwExitCode))
return 1;
/* CPU display_process_info */
if (!GetProcessTimes(hProcess, &ftCreation, &ftExit, &ftKernel, &ftUser))
{
return 1;
}
tElapsed = 1.0e-7 * (convert_file_time(&ftExit) - convert_file_time(&ftCreation));
tKernel = 1.0e-7 * convert_file_time(&ftKernel);
tUser = 1.0e-7 * convert_file_time(&ftUser);
/* Memory display_process_info */
// Print information about the memory usage of the process.
if (!GetProcessMemoryInfo(hProcess, &pmc, sizeof(pmc)))
return 1;
/* Display display_process_info. */
wprintf(L"Exit code : %u\n", dwExitCode);
wprintf( VT100_FG_GREEN_BOLD L"Elapsed time : %.2lf\n" VT100_RESET , tElapsed);
wprintf(L"Kernel time : %.2lf (%.1lf%%)\n", tKernel, 100.0*tKernel/tElapsed);
wprintf(L"User time : %.2lf (%.1lf%%)\n", tUser, 100.0*tUser/tElapsed);
wprintf(L"page fault # : %u\n", pmc.PageFaultCount);
wprintf(L"Working set : %llu KB\n", pmc.PeakWorkingSetSize/1024);
wprintf(L"Paged pool : %llu KB\n", pmc.QuotaPeakPagedPoolUsage/1024);
wprintf(L"Non-paged pool : %llu KB\n", pmc.QuotaPeakNonPagedPoolUsage/1024);
wprintf(L"Page file size : %llu KB\n", pmc.PeakPagefileUsage/1024);
return 0;
}
/* Todo:
* - mimic linux time utility interface; e.g. see http://linux.die.net/man/1/time
* - build under 64-bit
* - display detailed error message
*/
int wmain(
#ifndef NDEBUG
int argc, wchar_t *argv[]
#endif
)
{
assure_colours() ;
intro();
LPWSTR szCmdLine;
LPWSTR szBegin;
STARTUPINFO si = { sizeof(STARTUPINFO) };
PROCESS_INFORMATION pi;
int ret;
/* Read the command line. */
szCmdLine = GetCommandLineW();
/* Strip the first token from the command line. */
if (szCmdLine[0] == '"')
{
/* The first token is double-quoted. Note that we don't need to
* worry about escaped quote, because a quote is not a valid
* path name under Windows.
*/
LPWSTR p = szCmdLine + 1;
while (*p && *p != '"')
++p;
szBegin = (*p == '"')? p + 1 : p;
}
else
{
/* The first token is deliminated by a space or tab.
* See "Parsing C++ Command Line Arguments" below:
* http://msdn.microsoft.com/en-us/library/windows/desktop/17w5ykft(v=vs.85).aspx
*/
LPWSTR p = szCmdLine;
while (*p && *p != ' ' && *p != '\t')
++p;
szBegin = p;
}
/* Skip white spaces. */
while (*szBegin == ' ' || *szBegin == '\t')
++szBegin;
/* If we have no more arguments, display usage display_process_info and exit. */
if (*szBegin == 0)
{
usage();
return 1;
}
/* Display argc,argv and command line for debugging purpose. */
#ifndef NDEBUG
{
int i;
for (i = 0; i < argc; i++)
wprintf(VT100_FG_GREEN_BOLD L"argv[%d]='%s'\n" VT100_RESET, i, argv[i]);
wprintf(L"CmdLine = '%s'\n", szCmdLine);
wprintf(L"Invoked = '%s'\n", szBegin);
}
#endif
/* Create the process. */
if (!CreateProcessW(NULL, szBegin, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi))
{
wprintf(VT100_FG_RED_BOLD L"Error: Cannot create process.\n" VT100_RESET);
last_error_message();
return EXIT_FAILURE;
}
/* Wait for the process to finish. */
if (WaitForSingleObject(pi.hProcess, INFINITE) != WAIT_OBJECT_0)
{
wprintf(VT100_FG_RED_BOLD L"Error: Cannot wait for a process.\n" VT100_RESET);
last_error_message();
return EXIT_FAILURE;
}
/* Display process statistics. */
ret = display_process_info(pi.hProcess);
/* Close process handles. */
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
return ret;
}