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/* Sysprof -- Sampling, systemwide CPU profiler
* Copyright 2005, Lorenzo Colitti
* Copyright 2005, Soren Sandmann
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <glib.h>
#include <stdio.h>
#include "stackstash.h"
#include "profile.h"
#include "watch.h"
#include "signal-handler.h"
#include "collector.h"
typedef struct Application Application;
struct Application
{
Collector * collector;
char * outfile;
GMainLoop * main_loop;
};
static void
dump_data (Application *app)
{
GError *err = NULL;
Profile *profile;
printf ("Saving profile in %s ... ", app->outfile);
fflush (stdout);
collector_stop (app->collector);
profile = collector_create_profile (app->collector);
profile_save (profile, app->outfile, &err);
if (err)
{
printf ("failed\n");
fprintf (stderr, "Error saving %s: %s\n", app->outfile, err->message);
exit (1);
}
else
{
printf ("done\n\n");
}
}
static void
signal_handler (int signo,
gpointer data)
{
Application *app = data;
dump_data (app);
while (g_main_context_iteration (NULL, FALSE))
;
g_main_loop_quit (app->main_loop);
}
static char *
usage_msg (const char *name)
{
return g_strdup_printf (
"Usage: \n"
" %s <outfile>\n"
"\n"
"On SIGTERM or SIGINT (Ctrl-C) the profile will be written to <outfile>",
name);
}
static gboolean
file_exists_and_is_dir (const char *name)
{
return
g_file_test (name, G_FILE_TEST_EXISTS) &&
g_file_test (name, G_FILE_TEST_IS_DIR);
}
static void
die (const char *err_msg)
{
if (err_msg)
fprintf (stderr, "\n%s\n\n", err_msg);
exit (-1);
}
int
main (int argc,
char *argv[])
{
Application *app = g_new0 (Application, 1);
GError *err;
app->collector = collector_new (NULL, NULL);
app->outfile = g_strdup (argv[1]);
app->main_loop = g_main_loop_new (NULL, 0);
err = NULL;
if (!collector_start (app->collector, &err))
die (err->message);
if (argc < 2)
die (usage_msg (argv[0]));
if (!signal_set_handler (SIGTERM, signal_handler, app, &err))
die (err->message);
if (!signal_set_handler (SIGINT, signal_handler, app, &err))
die (err->message);
if (file_exists_and_is_dir (app->outfile))
{
char *msg = g_strdup_printf ("Can't write to %s: is a directory\n",
app->outfile);
die (msg);
}
g_main_loop_run (app->main_loop);
signal_unset_handler (SIGTERM);
signal_unset_handler (SIGINT);
return 0;
}
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