+static const char *
+lttng_viewer_next_index_return_code_str(enum lttng_viewer_next_index_return_code code)
+{
+ switch (code) {
+ case LTTNG_VIEWER_INDEX_OK:
+ return "INDEX_OK";
+ case LTTNG_VIEWER_INDEX_RETRY:
+ return "INDEX_RETRY";
+ case LTTNG_VIEWER_INDEX_HUP:
+ return "INDEX_HUP";
+ case LTTNG_VIEWER_INDEX_ERR:
+ return "INDEX_ERR";
+ case LTTNG_VIEWER_INDEX_INACTIVE:
+ return "INDEX_INACTIVE";
+ case LTTNG_VIEWER_INDEX_EOF:
+ return "INDEX_EOF";
+ default:
+ abort();
+ }
+}
+
+static const char *lttng_viewer_attach_return_code_str(enum lttng_viewer_attach_return_code code)
+{
+ switch (code) {
+ case LTTNG_VIEWER_ATTACH_OK:
+ return "ATTACH_OK";
+ case LTTNG_VIEWER_ATTACH_ALREADY:
+ return "ATTACH_ALREADY";
+ case LTTNG_VIEWER_ATTACH_UNK:
+ return "ATTACH_UNK";
+ case LTTNG_VIEWER_ATTACH_NOT_LIVE:
+ return "ATTACH_NOT_LIVE";
+ case LTTNG_VIEWER_ATTACH_SEEK_ERR:
+ return "ATTACH_SEEK_ERR";
+ case LTTNG_VIEWER_ATTACH_NO_SESSION:
+ return "ATTACH_NO_SESSION";
+ default:
+ abort();
+ }
+};
+
+static const char *
+lttng_viewer_get_packet_return_code_str(enum lttng_viewer_get_packet_return_code code)
+{
+ switch (code) {
+ case LTTNG_VIEWER_GET_PACKET_OK:
+ return "GET_PACKET_OK";
+ case LTTNG_VIEWER_GET_PACKET_RETRY:
+ return "GET_PACKET_RETRY";
+ case LTTNG_VIEWER_GET_PACKET_ERR:
+ return "GET_PACKET_ERR";
+ case LTTNG_VIEWER_GET_PACKET_EOF:
+ return "GET_PACKET_EOF";
+ default:
+ abort();
+ }
+};
+