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/* vi: ts=8 sts=4 sw=4
*
* $Id$
*
* This file is part of the KDE project, module kstartperf.
* Copyright (C) 2000 Geert Jansen <jansen@kde.org>
*
* You can freely redistribute this program under the "Artistic License".
* See the file "LICENSE.readme" for the exact terms.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/time.h>
#include <qstring.h>
#include <qtextstream.h>
#include <qfile.h>
#include <kapplication.h>
#include <kaboutdata.h>
#include <kcmdlineargs.h>
#include <klocale.h>
#include <kstandarddirs.h>
static KCmdLineOptions options[] =
{
{ "+command", I18N_NOOP("Specifies the command to run"), 0 },
KCmdLineLastOption
};
QString libkstartperf()
{
QString lib = QString::null;
QString la_file = locate("lib", "libkstartperf.la");
if (la_file.isEmpty())
return lib;
// Find the name of the .so file by reading the .la file
QFile la(la_file);
if (la.open(IO_ReadOnly))
{
QTextStream is(&la);
QString line;
while (!is.atEnd())
{
line = is.readLine();
if (line.left(15) == "library_names='")
{
lib = line.mid(15);
int pos = lib.find(" ");
if (pos > 0)
lib = lib.left(pos);
}
}
la.close();
}
// Look up the actual .so file.
lib = locate("lib", lib);
return lib;
}
int main(int argc, char **argv)
{
KAboutData aboutData("kstartperf", I18N_NOOP("KStartPerf"),
"1.0", I18N_NOOP("Measures start up time of a KDE application"),
KAboutData::License_Artistic,
"Copyright (c) 2000 Geert Jansen and libkmapnotify authors");
aboutData.addAuthor("Geert Jansen", I18N_NOOP("Maintainer"),
"jansen@kde.org", "http://www.stack.nl/~geertj/");
KCmdLineArgs::init(argc, argv, &aboutData);
KCmdLineArgs::addCmdLineOptions(options);
KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
KApplication *app = new KApplication(false, false);
// Check arguments
if (args->count() == 0)
{
fprintf(stderr, "No command specified!\n");
fprintf(stderr, "usage: kstartperf command [arguments]\n");
exit(1);
}
// Build command
char cmd[1024];
sprintf(cmd, "LD_PRELOAD=%s %s", libkstartperf().latin1(), args->arg(0));
for (int i=1; i<args->count(); i++)
{
strcat(cmd, " ");
strcat(cmd, args->arg(i));
}
// Put the current time in the environment variable `KSTARTPERF'
struct timeval tv;
if (gettimeofday(&tv, 0L) != 0)
{
perror("gettimeofday()");
exit(1);
}
char env[100];
sprintf(env, "KSTARTPERF=%ld:%ld", tv.tv_sec, tv.tv_usec);
putenv(env);
// And exec() the command
execl("/bin/sh", "sh", "-c", cmd, (void *)0);
perror("execl()");
exit(1);
}
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