+//sig_atomic_t must_quit;
+
+void inthandler(int sig)
+{
+ printf("in handler\n");
+ exit(0);
+}
+
+int init_int_handler(void)
+{
+ int result;
+ struct sigaction act;
+
+ result = sigemptyset(&act.sa_mask);
+ if(result == -1) {
+ PERROR("sigemptyset");
+ return -1;
+ }
+
+ act.sa_handler = inthandler;
+ act.sa_flags = SA_RESTART;
+
+ /* Only defer ourselves. Also, try to restart interrupted
+ * syscalls to disturb the traced program as little as possible.
+ */
+ result = sigaction(SIGINT, &act, NULL);
+ if(result == -1) {
+ PERROR("sigaction");
+ return -1;
+ }
+
+ return 0;
+}
+
+//ust// DEFINE_MUTEX(probes_mutex);
+//ust//
+//ust// static LIST_HEAD(probes_registered_list);
+//ust//
+//ust// int ltt_marker_connect(const char *channel, const char *mname,
+//ust// const char *pname)
+//ust//
+//ust// {
+//ust// int ret;
+//ust// struct ltt_active_marker *pdata;
+//ust// struct ltt_available_probe *probe;
+//ust//
+//ust// ltt_lock_traces();
+//ust// mutex_lock(&probes_mutex);
+//ust// probe = get_probe_from_name(pname);
+//ust// if (!probe) {
+//ust// ret = -ENOENT;
+//ust// goto end;
+//ust// }
+//ust// pdata = marker_get_private_data(channel, mname, probe->probe_func, 0);
+//ust// if (pdata && !IS_ERR(pdata)) {
+//ust// ret = -EEXIST;
+//ust// goto end;
+//ust// }
+//ust// pdata = kmem_cache_zalloc(markers_loaded_cachep, GFP_KERNEL);
+//ust// if (!pdata) {
+//ust// ret = -ENOMEM;
+//ust// goto end;
+//ust// }
+//ust// pdata->probe = probe;
+//ust// /*
+//ust// * ID has priority over channel in case of conflict.
+//ust// */
+//ust// ret = marker_probe_register(channel, mname, NULL,
+//ust// probe->probe_func, pdata);
+//ust// if (ret)
+//ust// kmem_cache_free(markers_loaded_cachep, pdata);
+//ust// else
+//ust// list_add(&pdata->node, &markers_loaded_list);
+//ust// end:
+//ust// mutex_unlock(&probes_mutex);
+//ust// ltt_unlock_traces();
+//ust// return ret;
+//ust// }
+//ust//
+//ust//
+//ust// int ltt_probe_register(struct ltt_available_probe *pdata)
+//ust// {
+//ust// int ret = 0;
+//ust// int comparison;
+//ust// struct ltt_available_probe *iter;
+//ust//
+//ust// mutex_lock(&probes_mutex);
+//ust// list_for_each_entry_reverse(iter, &probes_registered_list, node) {
+//ust// comparison = strcmp(pdata->name, iter->name);
+//ust// if (!comparison) {
+//ust// ret = -EBUSY;
+//ust// goto end;
+//ust// } else if (comparison > 0) {
+//ust// /* We belong to the location right after iter. */
+//ust// list_add(&pdata->node, &iter->node);
+//ust// goto end;
+//ust// }
+//ust// }
+//ust// /* Should be added at the head of the list */
+//ust// list_add(&pdata->node, &probes_registered_list);
+//ust// end:
+//ust// mutex_unlock(&probes_mutex);
+//ust// return ret;
+//ust// }
+//ust//
+//ust//
+//ust// struct ltt_available_probe default_probe = {
+//ust// .name = "default",
+//ust// .format = NULL,
+//ust// .probe_func = ltt_vtrace,
+//ust// .callbacks[0] = ltt_serialize_data,
+//ust// };
+