+static enum lttng_error_code lttng_condition_event_rule_matches_mi_serialize(
+ const struct lttng_condition *condition,
+ struct mi_writer *writer)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ enum lttng_condition_status status;
+ const struct lttng_event_rule *rule = NULL;
+ unsigned int capture_descriptor_count, i;
+
+ LTTNG_ASSERT(condition);
+ LTTNG_ASSERT(writer);
+ LTTNG_ASSERT(IS_EVENT_RULE_MATCHES_CONDITION(condition));
+
+ status = lttng_condition_event_rule_matches_get_rule(condition, &rule);
+ LTTNG_ASSERT(status == LTTNG_CONDITION_STATUS_OK);
+ LTTNG_ASSERT(rule != NULL);
+
+ status = lttng_condition_event_rule_matches_get_capture_descriptor_count(
+ condition, &capture_descriptor_count);
+ LTTNG_ASSERT(status == LTTNG_CONDITION_STATUS_OK);
+
+ /* Open condition event rule matches element. */
+ ret = mi_lttng_writer_open_element(
+ writer, mi_lttng_element_condition_event_rule_matches);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Serialize the event rule. */
+ ret_code = lttng_event_rule_mi_serialize(rule, writer);
+ if (ret_code != LTTNG_OK) {
+ goto end;
+ }
+
+ /* Open the capture descriptors element. */
+ ret = mi_lttng_writer_open_element(
+ writer, mi_lttng_element_capture_descriptors);
+ if (ret) {
+ goto mi_error;
+ }
+
+ for (i = 0; i < capture_descriptor_count; i++) {
+ const struct lttng_event_expr *descriptor = NULL;
+
+ descriptor = lttng_condition_event_rule_matches_get_capture_descriptor_at_index(
+ condition, i);
+ LTTNG_ASSERT(descriptor);
+
+ ret_code = lttng_event_expr_mi_serialize(descriptor, writer);
+ if (ret_code != LTTNG_OK) {
+ goto end;
+ }
+ }
+
+ /* Close capture descriptors element. */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Close condition_event_rule_matches. */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto mi_error;
+ }
+ ret_code = LTTNG_OK;
+ goto end;
+
+mi_error:
+ ret_code = LTTNG_ERR_MI_IO_FAIL;
+end:
+ return ret_code;
+}
+