static void sighandler(int sig);
static int set_signal_handler(void);
static int get_cmdline_by_pid(pid_t pid, char **cmdline);
+static int validate_options(void);
/*
* start_client
}
if (opt_session_uuid != NULL) {
+ DBG("Set session uuid to %s", opt_session_uuid);
lttng_set_current_session_uuid(opt_session_uuid);
}
if (ret < 0) {
goto end;
}
- MSG("Trace created successfully!\nUse --start PID to start tracing");
+ MSG("Trace created successfully!\nUse --start PID to start tracing.");
+ }
+
+ if (opt_start_trace) {
+ DBG("Start trace for pid %d", opt_start_trace);
+ ret = lttng_ust_start_trace(opt_start_trace);
+ if (ret < 0) {
+ goto end;
+ }
+ MSG("Trace started successfully!");
}
return 0;
return 0;
}
+/*
+ * validate_options
+ *
+ * Make sure that all options passed to the command line
+ * are compatible with each others.
+ *
+ * On error, return -1
+ * On success, return 0
+ */
+static int validate_options(void)
+{
+ if ((opt_session_uuid == NULL) &&
+ (opt_create_trace || opt_start_trace)) {
+ ERR("Can't act on trace without a session ID.\nPlease specify using --session UUID");
+ goto error;
+ }
+
+ return 0;
+
+error:
+ return -1;
+}
+
/*
* spawn_sessiond
*
*/
static void sighandler(int sig)
{
- DBG("%d received", sig);
switch (sig) {
case SIGTERM:
+ DBG("SIGTERM catched");
clean_exit(EXIT_FAILURE);
break;
case SIGCHLD:
/* Notify is done */
+ DBG("SIGCHLD catched");
break;
default:
+ DBG("Unknown signal %d catched", sig);
break;
}
clean_exit(EXIT_FAILURE);
}
+ ret = validate_options();
+ if (ret < 0) {
+ return EXIT_FAILURE;
+ }
+
ret = set_signal_handler();
if (ret < 0) {
clean_exit(ret);