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/* flactimer - Runs a command and prints timing information
* Copyright (C) 2007-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <windows.h>
#include "share/compat.h"
#include "share/safe_str.h"
static inline uint64_t time2nsec(const FILETIME &t)
{
uint64_t n = t.dwHighDateTime;
n <<= 32;
n |= (uint64_t)t.dwLowDateTime;
return n * 100;
}
static void printtime(FILE *fout, uint64_t nsec, uint64_t total)
{
unsigned pct = (unsigned)(100.0 * ((double)nsec / (double)total));
uint64_t msec = nsec / 1000000; nsec -= msec * 1000000;
uint64_t sec = msec / 1000; msec -= sec * 1000;
uint64_t min = sec / 60; sec -= min * 60;
uint64_t hour = min / 60; min -= hour * 60;
fprintf(fout, " %5u.%03u = %02u:%02u:%02u.%03u = %3u%%\n",
(unsigned)((hour*60+min)*60+sec),
(unsigned)msec,
(unsigned)hour,
(unsigned)min,
(unsigned)sec,
(unsigned)msec,
pct
);
}
int main(int argc, char *argv[])
{
const char *usage = "usage: flactimer [-1 | -2 | -o outputfile] command\n";
FILE *fout = stderr;
if(argc == 1 || (argc > 1 && 0 == strcmp(argv[1], "-h"))) {
fprintf(stderr, usage);
return 0;
}
argv++;
argc--;
if(0 == strcmp(argv[0], "-1") || 0 == strcmp(argv[0], "/1")) {
fout = stdout;
argv++;
argc--;
}
else if(0 == strcmp(argv[0], "-2") || 0 == strcmp(argv[0], "/2")) {
fout = stdout;
argv++;
argc--;
}
else if(0 == strcmp(argv[0], "-o")) {
if(argc < 2) {
fprintf(stderr, usage);
return 1;
}
fout = fopen(argv[1], "w");
if(!fout) {
fprintf(stderr, "ERROR opening file %s for writing\n", argv[1]);
return 1;
}
argv += 2;
argc -= 2;
}
if(argc <= 0) {
fprintf(fout, "ERROR, no command!\n\n");
fprintf(fout, usage);
fclose(fout);
return 1;
}
// improvement: double-quote all args
int i, n = 0;
for(i = 0; i < argc; i++) {
if(i > 0)
n++;
n += strlen(argv[i]);
}
char *args = (char*)malloc(n+1);
if(!args) {
fprintf(fout, "ERROR, no memory\n");
fclose(fout);
return 1;
}
args[0] = '\0';
for(i = 0; i < argc; i++) {
if(i > 0)
safe_strncat(args, " ", sizeof(args));
safe_strncat(args, argv[i], sizeof(args));
}
//fprintf(stderr, "@@@ cmd=[%s] args=[%s]\n", argv[0], args);
STARTUPINFO si;
GetStartupInfo(&si);
DWORD wallclock_msec = GetTickCount();
PROCESS_INFORMATION pi;
BOOL ok = CreateProcess(
argv[0], // lpApplicationName
args, // lpCommandLine
NULL, // lpProcessAttributes
NULL, // lpThreadAttributes
FALSE, // bInheritHandles
0, // dwCreationFlags
NULL, // lpEnvironment
NULL, // lpCurrentDirectory
&si, // lpStartupInfo (inherit from this proc?)
&pi // lpProcessInformation
);
if(!ok) {
fprintf(fout, "ERROR running command\n");
free(args); //@@@ ok to free here or have to wait to wait till process is reaped?
fclose(fout);
return 1;
}
//fprintf(stderr, "@@@ waiting...\n");
WaitForSingleObject(pi.hProcess, INFINITE);
//fprintf(stderr, "@@@ done\n");
wallclock_msec = GetTickCount() - wallclock_msec;
FILETIME creation_time;
FILETIME exit_time;
FILETIME kernel_time;
FILETIME user_time;
if(!GetProcessTimes(pi.hProcess, &creation_time, &exit_time, &kernel_time, &user_time)) {
fprintf(fout, "ERROR getting time info\n");
free(args); //@@@ ok to free here or have to wait to wait till process is reaped?
fclose(fout);
return 1;
}
uint64_t kernel_nsec = time2nsec(kernel_time);
uint64_t user_nsec = time2nsec(user_time);
fprintf(fout, "Kernel Time = "); printtime(fout, kernel_nsec, (uint64_t)wallclock_msec * 1000000);
fprintf(fout, "User Time = "); printtime(fout, user_nsec, (uint64_t)wallclock_msec * 1000000);
fprintf(fout, "Process Time = "); printtime(fout, kernel_nsec+user_nsec, (uint64_t)wallclock_msec * 1000000);
fprintf(fout, "Global Time = "); printtime(fout, (uint64_t)wallclock_msec * 1000000, (uint64_t)wallclock_msec * 1000000);
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
free(args); //@@@ always causes crash, maybe CreateProcess takes ownership?
fclose(fout);
return 0;
}
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