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Do proper error-handling.

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2006-03-05 Soeren Sandmann <sandmann@redhat.com>

        * sysprof-text.c, collector.c, sysprof.c: Do proper
        error-handling.
This commit is contained in:
Soeren Sandmann
2006-03-05 21:11:07 +00:00
committed by Søren Sandmann Pedersen
parent ebb7728768
commit 849efc820d
5 changed files with 102 additions and 59 deletions
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82
sysprof-text.c
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@ -47,91 +47,81 @@ dump_data (Application *app)
{
GError *err = NULL;
Profile *profile = collector_create_profile (app->collector);
profile_save (profile, app->outfile, &err);
if (err)
{
fprintf (stderr, "%s: %s\n", app->outfile, err->message);
fprintf (stderr, "Error saving %s: %s\n", app->outfile, err->message);
exit (1);
}
else
{
printf ("Saved profile in %s\n\n", app->outfile);
}
}
void
signal_handler (int signo, gpointer data)
signal_handler (int signo,
gpointer data)
{
Application *app = data;
dump_data (app);
while (g_main_iteration (FALSE))
;
g_main_loop_quit (app->main_loop);
}
static void
no_module (void)
static char *
usage_msg (const char *name)
{
perror (SYSPROF_FILE);
fprintf (stderr,
"\n"
"Can't open " SYSPROF_FILE ". You need to insert "
"the sysprof kernel module. Run\n"
"\n"
" modprobe sysprof-module\n"
"\n"
"as root.\n");
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 void
usage (const char *name)
die (const char *err_msg)
{
fprintf (stderr,
"\n"
"Usage: \n"
" %s <outfile>\n"
"\n"
"On SIGTERM or SIGINT (Ctrl-C) the profile will be written to <outfile>\n"
"\n",
name);
if (err_msg)
fprintf (stderr, "\n%s\n\n", err_msg);
exit (-1);
}
int
main (int argc,
char *argv[])
{
gboolean quit;
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);
/* FIXME: get the real error */
quit = FALSE;
if (!collector_start (app->collector, NULL))
{
no_module();
quit = TRUE;
}
err = NULL;
if (!collector_start (app->collector, &err))
die (err->message);
if (argc < 2)
{
usage (argv[0]);
quit = TRUE;
}
if (quit)
return -1;
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);
/* FIXME: check the errors */
signal_set_handler (SIGTERM, signal_handler, app, NULL);
signal_set_handler (SIGINT, signal_handler, app, NULL);
g_main_loop_run (app->main_loop);
signal_unset_handler (SIGTERM);
signal_unset_handler (SIGINT);