C++ (Cpp) bt_ctf_field_structure_get_field_by_index Exemples

Exemple #1

Fichier : event.c Projet : mjeanson/debian-babeltrace

BT_HIDDEN
struct bt_ctf_field *bt_ctf_event_get_payload_by_index(
		struct bt_ctf_event *event, int index)
{
	struct bt_ctf_field *field = NULL;

	if (!event || index < 0) {
		goto end;
	}

	field = bt_ctf_field_structure_get_field_by_index(event->fields_payload,
		index);
end:
	return field;
}

Exemple #2

Fichier : copy.c Projet : jdesfossez/babeltrace-dev

BT_HIDDEN
enum bt_component_status update_packet_context_field(FILE *err,
		struct bt_ctf_packet *writer_packet,
		const char *name, int64_t value)
{
	enum bt_component_status ret;
	struct bt_ctf_field *packet_context = NULL, *writer_packet_context = NULL;
	struct bt_ctf_field_type *struct_type = NULL, *field_type = NULL;
	struct bt_ctf_field *field = NULL, *writer_field = NULL;
	int nr_fields, i, int_ret;

	packet_context = bt_ctf_packet_get_context(writer_packet);
	if (!packet_context) {
		fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
				__LINE__);
		goto error;
	}

	struct_type = bt_ctf_field_get_type(packet_context);
	if (!struct_type) {
		fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
				__LINE__);
		goto error;
	}

	writer_packet_context = bt_ctf_packet_get_context(writer_packet);
	if (!writer_packet_context) {
		fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
				__LINE__);
		goto error;
	}

	nr_fields = bt_ctf_field_type_structure_get_field_count(struct_type);
	for (i = 0; i < nr_fields; i++) {
		const char *field_name;

		field = bt_ctf_field_structure_get_field_by_index(
				packet_context, i);
		if (!field) {
			fprintf(err, "[error] %s in %s:%d\n", __func__,
					__FILE__, __LINE__);
			goto error;
		}
		if (bt_ctf_field_type_structure_get_field(struct_type,
					&field_name, &field_type, i) < 0) {
			fprintf(err, "[error] %s in %s:%d\n", __func__,
					__FILE__, __LINE__);
			goto error;
		}
		if (strcmp(field_name, name)) {
			BT_PUT(field_type);
			BT_PUT(field);
			continue;
		}
		if (bt_ctf_field_type_get_type_id(field_type) != BT_CTF_FIELD_TYPE_ID_INTEGER) {
			fprintf(err, "[error] Unexpected packet context field type\n");
			goto error;
		}
		writer_field = bt_ctf_field_structure_get_field(writer_packet_context,
				field_name);
		if (!writer_field) {
			fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
					__LINE__);
			goto error;
		}

		int_ret = bt_ctf_field_unsigned_integer_set_value(writer_field, value);
		if (int_ret < 0) {
			fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
					__LINE__);
			goto error;
		}
		BT_PUT(writer_field);
		BT_PUT(field_type);
		BT_PUT(field);
	}

	ret = BT_COMPONENT_STATUS_OK;
	goto end;

error:
	bt_put(writer_field);
	bt_put(field_type);
	bt_put(field);
	ret = BT_COMPONENT_STATUS_ERROR;
end:
	bt_put(struct_type);
	bt_put(packet_context);
	return ret;
}