+static struct lttng_event *lttng_event_rule_tracepoint_generate_lttng_event(
+ const struct lttng_event_rule *rule)
+{
+ int ret;
+ const struct lttng_event_rule_tracepoint *tracepoint;
+ struct lttng_event *local_event = NULL;
+ struct lttng_event *event = NULL;
+ enum lttng_loglevel_type loglevel_type;
+ int loglevel_value = 0;
+ enum lttng_event_rule_status status;
+ const struct lttng_log_level_rule *log_level_rule;
+
+ tracepoint = container_of(
+ rule, const struct lttng_event_rule_tracepoint, parent);
+
+ local_event = zmalloc(sizeof(*local_event));
+ if (!local_event) {
+ goto error;
+ }
+
+ local_event->type = LTTNG_EVENT_TRACEPOINT;
+ ret = lttng_strncpy(local_event->name, tracepoint->pattern,
+ sizeof(local_event->name));
+ if (ret) {
+ ERR("Truncation occurred when copying event rule pattern to `lttng_event` structure: pattern = '%s'",
+ tracepoint->pattern);
+ goto error;
+ }
+
+
+ /* Map the log level rule to an equivalent lttng_loglevel */
+ status = lttng_event_rule_tracepoint_get_log_level_rule(rule, &log_level_rule);
+ if (status == LTTNG_EVENT_RULE_STATUS_UNSET) {
+ loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
+ loglevel_value = 0;
+ } else if (status == LTTNG_EVENT_RULE_STATUS_OK) {
+ enum lttng_log_level_rule_status llr_status;
+
+ switch (lttng_log_level_rule_get_type(log_level_rule)) {
+ case LTTNG_LOG_LEVEL_RULE_TYPE_EXACTLY:
+ llr_status = lttng_log_level_rule_exactly_get_level(
+ log_level_rule, &loglevel_value);
+ loglevel_type = LTTNG_EVENT_LOGLEVEL_SINGLE;
+ break;
+ case LTTNG_LOG_LEVEL_RULE_TYPE_AT_LEAST_AS_SEVERE_AS:
+ llr_status = lttng_log_level_rule_at_least_as_severe_as_get_level(
+ log_level_rule, &loglevel_value);
+ loglevel_type = LTTNG_EVENT_LOGLEVEL_RANGE;
+ break;
+ default:
+ abort();
+ break;
+ }
+
+ if (llr_status != LTTNG_LOG_LEVEL_RULE_STATUS_OK) {
+ goto error;
+ }
+ } else {
+ goto error;
+ }
+
+ local_event->loglevel_type = loglevel_type;
+ local_event->loglevel = loglevel_value;
+
+ event = local_event;
+ local_event = NULL;
+error:
+ free(local_event);
+ return event;
+}
+