+
+uint64_t bt_ctf_get_struct_field_count(const struct bt_definition *field)
+{
+ uint64_t ret = -1;
+ const struct bt_declaration *declaration =
+ bt_ctf_get_decl_from_def(field);
+
+ if (field && bt_ctf_field_type(declaration) == CTF_TYPE_STRUCT) {
+ const struct declaration_struct *struct_declaration =
+ container_of(declaration, struct declaration_struct, p);
+
+ ret = bt_struct_declaration_len(struct_declaration);
+ } else {
+ bt_ctf_field_set_error(-EINVAL);
+ }
+
+ return ret;
+}
+
+const struct bt_definition *bt_ctf_get_struct_field_index(
+ const struct bt_definition *field, uint64_t i)
+{
+ const struct bt_definition *ret = NULL;
+
+ if (field && bt_ctf_field_type(
+ bt_ctf_get_decl_from_def(field)) == CTF_TYPE_STRUCT &&
+ i < bt_ctf_get_struct_field_count(field)) {
+ const struct definition_struct *structure = container_of(
+ field, struct definition_struct, p);
+
+ ret = bt_struct_definition_get_field_from_index(structure, i);
+ }
+
+ if (!ret) {
+ bt_ctf_field_set_error(-EINVAL);
+ }
+
+ return ret;
+}
+
+int bt_ctf_get_event_decl_list(int handle_id, struct bt_context *ctx,
+ struct bt_ctf_event_decl * const **list,
+ unsigned int *count)
+{
+ struct bt_trace_handle *handle;
+ struct bt_trace_descriptor *td;
+ struct ctf_trace *tin;
+
+ if (!ctx || !list || !count)
+ goto error;
+
+ handle = g_hash_table_lookup(ctx->trace_handles,
+ (gpointer) (unsigned long) handle_id);
+ if (!handle)
+ goto error;
+
+ td = handle->td;
+ tin = container_of(td, struct ctf_trace, parent);
+
+ *list = (struct bt_ctf_event_decl * const*) tin->event_declarations->pdata;
+ *count = tin->event_declarations->len;
+ return 0;
+
+error:
+ return -1;
+}
+
+const char *bt_ctf_get_decl_event_name(const struct bt_ctf_event_decl *event)
+{
+ if (!event)
+ return NULL;
+
+ return g_quark_to_string(event->parent.name);
+}
+
+int bt_ctf_get_decl_fields(struct bt_ctf_event_decl *event_decl,
+ enum bt_ctf_scope scope,
+ struct bt_ctf_field_decl const * const **list,
+ unsigned int *count)
+{
+ int i;
+ GArray *fields = NULL;
+ gpointer *ret_list = NULL;
+ GPtrArray *fields_array = NULL;
+ int ret = 0;
+
+ if (!event_decl || !list || !count)
+ return -EINVAL;
+
+ *count = 0;
+ switch (scope) {
+ case BT_EVENT_CONTEXT:
+ if (event_decl->context_decl) {
+ ret_list = event_decl->context_decl->pdata;
+ *count = event_decl->context_decl->len;
+ goto end;
+ }
+ event_decl->context_decl = g_ptr_array_new();
+ if (!event_decl->parent.context_decl) {
+ ret = -1;
+ goto end;
+ }
+ fields = event_decl->parent.context_decl->fields;
+ fields_array = event_decl->context_decl;
+ break;
+ case BT_EVENT_FIELDS:
+ if (event_decl->fields_decl) {
+ ret_list = event_decl->fields_decl->pdata;
+ *count = event_decl->fields_decl->len;
+ goto end;
+ }
+ event_decl->fields_decl = g_ptr_array_new();
+ if (!event_decl->parent.fields_decl) {
+ ret = -1;
+ goto end;
+ }
+ fields = event_decl->parent.fields_decl->fields;
+ fields_array = event_decl->fields_decl;
+ break;
+ case BT_STREAM_PACKET_CONTEXT:
+ if (event_decl->packet_context_decl) {
+ ret_list = event_decl->packet_context_decl->pdata;
+ *count = event_decl->packet_context_decl->len;
+ goto end;
+ }
+ event_decl->packet_context_decl = g_ptr_array_new();
+ if (!event_decl->parent.stream->packet_context_decl) {
+ ret = -1;
+ goto end;
+ }
+ fields = event_decl->parent.stream->packet_context_decl->fields;
+ fields_array = event_decl->packet_context_decl;
+ break;
+ case BT_STREAM_EVENT_CONTEXT:
+ if (event_decl->event_context_decl) {
+ ret_list = event_decl->event_context_decl->pdata;
+ *count = event_decl->event_context_decl->len;
+ goto end;
+ }
+ event_decl->event_context_decl = g_ptr_array_new();
+ if (!event_decl->parent.stream->event_context_decl) {
+ ret = -1;
+ goto end;
+ }
+ fields = event_decl->parent.stream->event_context_decl->fields;
+ fields_array = event_decl->event_context_decl;
+ break;
+ case BT_STREAM_EVENT_HEADER:
+ if (event_decl->event_header_decl) {
+ ret_list = event_decl->event_header_decl->pdata;
+ *count = event_decl->event_header_decl->len;
+ goto end;
+ }
+ event_decl->event_header_decl = g_ptr_array_new();
+ if (!event_decl->parent.stream->event_header_decl) {
+ ret = -1;
+ goto end;
+ }
+ fields = event_decl->parent.stream->event_header_decl->fields;
+ fields_array = event_decl->event_header_decl;
+ break;
+ case BT_TRACE_PACKET_HEADER:
+ if (event_decl->packet_header_decl) {
+ ret_list = event_decl->packet_header_decl->pdata;
+ *count = event_decl->packet_header_decl->len;
+ goto end;
+ }
+ event_decl->packet_header_decl = g_ptr_array_new();
+ if (!event_decl->parent.stream->trace->packet_header_decl) {
+ ret = -1;
+ goto end;
+ }
+ fields = event_decl->parent.stream->trace->packet_header_decl->fields;
+ fields_array = event_decl->packet_header_decl;
+ break;
+ }
+
+ for (i = 0; i < fields->len; i++) {
+ g_ptr_array_add(fields_array,
+ &g_array_index(fields,
+ struct declaration_field, i));
+ }
+ ret_list = fields_array->pdata;
+ *count = fields->len;
+
+end:
+ *list = (struct bt_ctf_field_decl const* const*) ret_list;
+
+ return ret;
+}
+
+const char *bt_ctf_get_decl_field_name(const struct bt_ctf_field_decl *field)
+{
+ if (!field)
+ return NULL;
+
+ return rem_(g_quark_to_string(((struct declaration_field *) field)->name));
+}
+
+const struct bt_declaration *bt_ctf_get_decl_from_def(const struct bt_definition *def)
+{
+ if (def)
+ return def->declaration;
+
+ return NULL;
+}
+
+const struct bt_declaration *bt_ctf_get_decl_from_field_decl(
+ const struct bt_ctf_field_decl *field)
+{
+ if (field)
+ return ((struct declaration_field *) field)->declaration;
+
+ return NULL;
+}