+
+ return query_ret;
+}
+
+static
+int add_range(struct bt_value *info, struct range *range,
+ const char *range_name)
+{
+ int ret = 0;
+ enum bt_value_status status;
+ struct bt_value *range_map = NULL;
+
+ if (!range->set) {
+ /* Not an error. */
+ goto end;
+ }
+
+ range_map = bt_value_map_create();
+ if (!range_map) {
+ ret = -1;
+ goto end;
+ }
+
+ status = bt_value_map_insert_integer(range_map, "begin",
+ range->begin_ns);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+
+ status = bt_value_map_insert_integer(range_map, "end",
+ range->end_ns);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+
+ status = bt_value_map_insert(info, range_name, range_map);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+end:
+ bt_put(range_map);
+ return ret;
+}
+
+static
+int add_stream_ids(struct bt_value *info, struct bt_stream *stream)
+{
+ int ret = 0;
+ int64_t stream_class_id, stream_instance_id;
+ enum bt_value_status status;
+ struct bt_stream_class *stream_class = NULL;
+
+ stream_instance_id = bt_stream_get_id(stream);
+ if (stream_instance_id != -1) {
+ status = bt_value_map_insert_integer(info, "id",
+ stream_instance_id);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+ }
+
+ stream_class = bt_stream_get_class(stream);
+ if (!stream_class) {
+ ret = -1;
+ goto end;
+ }
+
+ stream_class_id = bt_stream_class_get_id(stream_class);
+ if (stream_class_id == -1) {
+ ret = -1;
+ goto end;
+ }
+
+ status = bt_value_map_insert_integer(info, "class-id", stream_class_id);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+end:
+ bt_put(stream_class);
+ return ret;
+}
+
+static
+int populate_stream_info(struct ctf_fs_ds_file_group *group,
+ struct bt_value *group_info,
+ struct range *stream_range)
+{
+ int ret = 0;
+ size_t file_idx;
+ enum bt_value_status status;
+ struct bt_value *file_paths;
+
+ stream_range->begin_ns = INT64_MAX;
+ stream_range->end_ns = 0;
+
+ file_paths = bt_value_array_create();
+ if (!file_paths) {
+ ret = -1;
+ goto end;
+ }
+
+ for (file_idx = 0; file_idx < group->ds_file_infos->len; file_idx++) {
+ int64_t file_begin_epoch, file_end_epoch;
+ struct ctf_fs_ds_file_info *info =
+ g_ptr_array_index(group->ds_file_infos,
+ file_idx);
+
+ if (!info->index || info->index->entries->len == 0) {
+ BT_LOGW("Cannot determine range of unindexed stream file \'%s\'",
+ info->path->str);
+ ret = -1;
+ goto end;
+ }
+
+ status = bt_value_array_append_string(file_paths,
+ info->path->str);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+
+ /*
+ * file range is from timestamp_begin of the first entry to the
+ * timestamp_end of the last entry.
+ */
+ file_begin_epoch = ((struct ctf_fs_ds_index_entry *) &g_array_index(info->index->entries,
+ struct ctf_fs_ds_index_entry, 0))->timestamp_begin_ns;
+ file_end_epoch = ((struct ctf_fs_ds_index_entry *) &g_array_index(info->index->entries,
+ struct ctf_fs_ds_index_entry, info->index->entries->len - 1))->timestamp_end_ns;
+
+ stream_range->begin_ns = min(stream_range->begin_ns, file_begin_epoch);
+ stream_range->end_ns = max(stream_range->end_ns, file_end_epoch);
+ stream_range->set = true;
+ }
+
+ if (stream_range->set) {
+ ret = add_range(group_info, stream_range, "range-ns");
+ if (ret) {
+ goto end;
+ }
+ }
+
+ status = bt_value_map_insert(group_info, "paths", file_paths);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = add_stream_ids(group_info, group->stream);
+ if (ret) {
+ goto end;
+ }
+end:
+ bt_put(file_paths);
+ return ret;
+}
+
+static
+int populate_trace_info(const char *trace_path, const char *trace_name,
+ struct bt_value *trace_info)
+{
+ int ret = 0;
+ size_t group_idx;
+ struct ctf_fs_trace *trace = NULL;
+ enum bt_value_status status;
+ struct bt_value *file_groups;
+ struct range trace_range = {
+ .begin_ns = INT64_MAX,
+ .end_ns = 0,
+ .set = false,
+ };
+ struct range trace_intersection = {
+ .begin_ns = 0,
+ .end_ns = INT64_MAX,
+ .set = false,
+ };
+
+ file_groups = bt_value_array_create();
+ if (!file_groups) {
+ goto end;
+ }
+
+ status = bt_value_map_insert_string(trace_info, "name",
+ trace_name);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+ status = bt_value_map_insert_string(trace_info, "path",
+ trace_path);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+
+ trace = ctf_fs_trace_create(trace_path, trace_name, NULL);
+ if (!trace) {
+ BT_LOGE("Failed to create fs trace at \'%s\'", trace_path);
+ ret = -1;
+ goto end;
+ }
+
+ assert(trace->ds_file_groups);
+ /* Add trace range info only if it contains streams. */
+ if (trace->ds_file_groups->len == 0) {
+ ret = -1;
+ goto end;
+ }
+
+ /* Find range of all stream groups, and of the trace. */
+ for (group_idx = 0; group_idx < trace->ds_file_groups->len;
+ group_idx++) {
+ struct bt_value *group_info;
+ struct range group_range = { .set = false };
+ struct ctf_fs_ds_file_group *group = g_ptr_array_index(
+ trace->ds_file_groups, group_idx);
+
+ group_info = bt_value_map_create();
+ if (!group_info) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = populate_stream_info(group, group_info, &group_range);
+ if (ret) {
+ bt_put(group_info);
+ goto end;
+ }
+
+ if (group_range.set) {
+ trace_range.begin_ns = min(trace_range.begin_ns,
+ group_range.begin_ns);
+ trace_range.end_ns = max(trace_range.end_ns,
+ group_range.end_ns);
+ trace_range.set = true;
+
+ trace_intersection.begin_ns = max(trace_intersection.begin_ns,
+ group_range.begin_ns);
+ trace_intersection.end_ns = min(trace_intersection.end_ns,
+ group_range.end_ns);
+ trace_intersection.set = true;
+ status = bt_value_array_append(file_groups, group_info);
+ bt_put(group_info);
+ if (status != BT_VALUE_STATUS_OK) {
+ goto end;
+ }
+ }
+ }
+
+ ret = add_range(trace_info, &trace_range, "range-ns");
+ if (ret) {
+ goto end;
+ }
+
+ if (trace_intersection.begin_ns < trace_intersection.end_ns) {
+ ret = add_range(trace_info, &trace_intersection,
+ "intersection-range-ns");
+ if (ret) {
+ goto end;
+ }
+ }
+
+ status = bt_value_map_insert(trace_info, "streams", file_groups);
+ BT_PUT(file_groups);
+ if (status != BT_VALUE_STATUS_OK) {
+ ret = -1;
+ goto end;
+ }
+
+end:
+ bt_put(file_groups);
+ ctf_fs_trace_destroy(trace);
+ return ret;
+}
+
+BT_HIDDEN
+struct bt_component_class_query_method_return trace_info_query(
+ struct bt_component_class *comp_class,
+ struct bt_value *params)
+{
+ struct bt_component_class_query_method_return query_ret = {
+ .result = NULL,
+ .status = BT_QUERY_STATUS_OK,
+ };
+
+ struct bt_value *path_value = NULL;
+ int ret = 0;
+ const char *path = NULL;
+ GList *trace_paths = NULL;
+ GList *trace_names = NULL;
+ GList *tp_node = NULL;
+ GList *tn_node = NULL;
+ GString *normalized_path = NULL;
+
+ if (!bt_value_is_map(params)) {
+ BT_LOGE("Query parameters is not a map value object.");
+ query_ret.status = BT_QUERY_STATUS_INVALID_PARAMS;
+ goto error;
+ }
+
+ path_value = bt_value_map_get(params, "path");
+ ret = bt_value_string_get(path_value, &path);
+ if (ret) {
+ BT_LOGE("Cannot get `path` string parameter.");
+ query_ret.status = BT_QUERY_STATUS_INVALID_PARAMS;
+ goto error;
+ }
+
+ normalized_path = bt_common_normalize_path(path, NULL);
+ if (!normalized_path) {
+ BT_LOGE("Failed to normalize path: `%s`.", path);
+ goto error;
+ }
+ assert(path);
+
+ ret = ctf_fs_find_traces(&trace_paths, normalized_path->str);
+ if (ret) {
+ goto error;
+ }
+
+ trace_names = ctf_fs_create_trace_names(trace_paths,
+ normalized_path->str);
+ if (!trace_names) {
+ BT_LOGE("Cannot create trace names from trace paths.");
+ goto error;
+ }
+
+ query_ret.result = bt_value_array_create();
+ if (!query_ret.result) {
+ query_ret.status = BT_QUERY_STATUS_NOMEM;
+ goto error;
+ }
+
+ /* Iterates over both trace paths and names simultaneously. */
+ for (tp_node = trace_paths, tn_node = trace_names; tp_node;
+ tp_node = g_list_next(tp_node),
+ tn_node = g_list_next(tn_node)) {
+ GString *trace_path = tp_node->data;
+ GString *trace_name = tn_node->data;
+ enum bt_value_status status;
+ struct bt_value *trace_info;
+
+ trace_info = bt_value_map_create();
+ if (!trace_info) {
+ BT_LOGE("Failed to create trace info map.");
+ goto error;
+ }
+
+ ret = populate_trace_info(trace_path->str, trace_name->str,
+ trace_info);
+ if (ret) {
+ bt_put(trace_info);
+ goto error;
+ }
+
+ status = bt_value_array_append(query_ret.result, trace_info);
+ bt_put(trace_info);
+ if (status != BT_VALUE_STATUS_OK) {
+ goto error;
+ }
+ }
+
+ goto end;
+
+error:
+ BT_PUT(query_ret.result);
+
+ if (query_ret.status >= 0) {
+ query_ret.status = BT_QUERY_STATUS_ERROR;
+ }
+
+end:
+ if (normalized_path) {
+ g_string_free(normalized_path, TRUE);
+ }
+ if (trace_paths) {
+ for (tp_node = trace_paths; tp_node; tp_node = g_list_next(tp_node)) {
+ if (tp_node->data) {
+ g_string_free(tp_node->data, TRUE);
+ }
+ }
+ g_list_free(trace_paths);
+ }
+ if (trace_names) {
+ for (tn_node = trace_names; tn_node; tn_node = g_list_next(tn_node)) {
+ if (tn_node->data) {
+ g_string_free(tn_node->data, TRUE);
+ }
+ }
+ g_list_free(trace_names);
+ }
+ /* "path" becomes invalid with the release of path_value. */
+ bt_put(path_value);
+ return query_ret;