+
+LTTNG_HIDDEN
+enum lttng_error_code lttng_snapshot_output_mi_serialize(
+ const struct lttng_snapshot_output *output,
+ struct mi_writer *writer)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+
+ assert(output);
+ assert(writer);
+
+ /* Open output element. */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_action_snapshot_session_output);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Name. */
+ if (strnlen(output->name, LTTNG_NAME_MAX) != 0) {
+ ret = mi_lttng_writer_write_element_string(
+ writer, config_element_name, output->name);
+ if (ret) {
+ goto mi_error;
+ }
+ }
+
+ /* Control url (always present). */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_snapshot_ctrl_url, output->ctrl_url);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Data url (optional). */
+ if (strnlen(output->data_url, PATH_MAX) != 0) {
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_snapshot_data_url,
+ output->data_url);
+ if (ret) {
+ goto mi_error;
+ }
+ }
+
+ /*
+ * Maximum size in bytes of the snapshot meaning the total size of all
+ * streams combined. A value of 0 means unlimited. The default value is
+ * UINT64_MAX which also means unlimited in practice.
+ *
+ * The value is not serialized when it is set to either of those values
+ * to normalize them to '0'.
+ */
+ if (output->max_size > 0 && output->max_size != UINT64_MAX) {
+ /* Total size of all stream combined. */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ mi_lttng_element_snapshot_max_size,
+ output->max_size);
+ if (ret) {
+ goto mi_error;
+ }
+ }
+
+ /* Close output element. */
+ 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;
+}