+static void test_kprobe_event_rule_notification(
+ enum lttng_domain_type domain_type)
+{
+ int i, ret;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_kernel_probe_location *location = NULL;
+ struct lttng_event_rule *event_rule = NULL;
+ struct lttng_action *action = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "kprobe_trigger";
+ const char * const symbol_name = "lttng_test_filter_event_write";
+
+ action = lttng_action_notify_create();
+ if (!action) {
+ fail("Failed to create notify action");
+ goto end;
+ }
+
+ location = lttng_kernel_probe_location_symbol_create(symbol_name, 0);
+ if (!location) {
+ fail("Failed to create kernel probe location");
+ goto end;
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ event_rule = lttng_event_rule_kprobe_create();
+ ok(event_rule, "kprobe event rule object creation");
+
+ event_rule_status = lttng_event_rule_kprobe_set_location(
+ event_rule, location);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting kprobe event rule location: '%s'", symbol_name);
+
+ event_rule_status = lttng_event_rule_kprobe_set_name(
+ event_rule, trigger_name);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting kprobe event rule name: '%s'", trigger_name);
+
+ condition = lttng_condition_event_rule_create(event_rule);
+ ok(condition, "Condition event rule object creation");
+
+ /* Register the trigger for condition. */
+ trigger = lttng_trigger_create(condition, action);
+ if (!trigger) {
+ fail("Failed to create trigger with kernel probe event rule condition and notify action");
+ goto end;
+ }
+
+ trigger_status = lttng_trigger_set_name(trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting trigger name to '%s'", trigger_name);
+
+ ret = lttng_register_trigger(trigger);
+ if (ret) {
+ fail("Failed to register trigger with kernel probe event rule condition and notify action");
+ goto end;
+ }
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ resume_application();
+
+ for (i = 0; i < notification_count; i++) {
+ char *name = get_next_notification_trigger_name(
+ notification_channel);
+
+ ok(strcmp(trigger_name, name) == 0,
+ "Received notification for the expected trigger name: '%s' (%d/%d)",
+ trigger_name, i + 1, notification_count);
+ free(name);
+ }
+
+end:
+ suspend_application();
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_unregister_trigger(trigger);
+ lttng_trigger_destroy(trigger);
+ lttng_action_destroy(action);
+ lttng_condition_destroy(condition);
+ lttng_kernel_probe_location_destroy(location);
+ return;
+}
+
projects / lttng-tools.git / commitdiff
