/*
* The lttng-ctl API does not expose all the information needed to load the
* session configurations. Thus, we must send a load command to the session
* daemon which will, in turn, load its current session configuration.
*/
int lttng_load_session(struct lttng_load_session_attr *attr)
{
int ret;
const char *url, *session_name;
if (!attr) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
url = attr->input_url[0] != '\0' ? attr->input_url : NULL;
session_name = attr->session_name[0] != '\0' ?
attr->session_name : NULL;
ret = config_load_session(url, session_name, attr->overwrite, 0);
end:
return ret;
}
/*
* This thread loads session configurations once the session daemon is
* ready to process client messages.
*/
void *thread_load_session(void *data)
{
int ret;
struct load_session_thread_data *info = data;
DBG("[load-session-thread] Load session");
ret = sem_wait(&info->message_thread_ready);
if (ret) {
PERROR("sem_wait message_thread_ready");
goto end;
}
/* Override existing session and autoload also. */
ret = config_load_session(info->path, NULL, 1, 1, NULL);
if (ret) {
ERR("Session load failed: %s", error_get_str(ret));
}
end:
sessiond_signal_parents();
return NULL;
}
