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cli: Allow to get samples from single pid

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perf lets you decide to only get events that concerns a single process
and thus make sysprof profile this process instead of the whole system
(it can happen that you don't really care about other processes that are
just then noise).

As a side effect, this allows sysprof to not run as root if you have the
rights on the process you want to profile.
This commit is contained in:
Damien Lespiau
2011-01-21 11:01:24 +00:00
committed by Søren Sandmann Pedersen
parent e14788c87e
commit 791fff95c3
4 changed files with 30 additions and 8 deletions
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27
sysprof-cli.c
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@ -111,19 +111,38 @@ die (const char *err_msg)
exit (-1);
}
static int opt_pid = -1;
static GOptionEntry entries[] =
{
{ "pid", 'p', 0, G_OPTION_ARG_INT, &opt_pid,
"Make sysprof specific to a task", NULL },
{ NULL }
};
int
main (int argc, char *argv[])
{
Application *app = g_new0 (Application, 1);
Application *app;
GOptionContext *context;
GError *err;
err = NULL;
context = g_option_context_new ("- Sysprof");
g_option_context_add_main_entries (context, entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &err))
{
g_print ("Failed to parse options: %s\n", err->message);
return 1;
}
app = g_new0 (Application, 1);
app->collector = collector_new (FALSE, 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))
if (!collector_start (app->collector, (pid_t) opt_pid, &err))
die (err->message);
if (argc < 2)