int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
struct bt_ctf_field_type *type,
const char *name)
{
int ret = 0;
if (!event_class || !type) {
BT_LOGW("Invalid parameter: event class or field type is NULL: "
"event-class-addr=%p, field-type-addr=%p",
event_class, type);
ret = -1;
goto end;
}
if (!bt_ctf_identifier_is_valid(name)) {
BT_LOGW("Invalid parameter: event class's payload field type's field name is not a valid CTF identifier: "
"addr=%p, name=\"%s\", id=%" PRId64 ", field-name=\"%s\"",
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class),
name);
ret = -1;
goto end;
}
if (event_class->common.frozen) {
BT_LOGW("Invalid parameter: event class is frozen: "
"addr=%p, name=\"%s\", id=%" PRId64,
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class));
ret = -1;
goto end;
}
if (!event_class->common.payload_field_type) {
BT_LOGW("Event class has no payload field type: "
"addr=%p, name=\"%s\", id=%" PRId64,
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class));
ret = -1;
goto end;
}
BT_ASSERT(bt_ctf_field_type_common_get_type_id(
event_class->common.payload_field_type) ==
BT_CTF_FIELD_TYPE_ID_STRUCT);
ret = bt_ctf_field_type_structure_add_field(
(void *) event_class->common.payload_field_type,
(void *) type, name);
BT_LOGV("Added field to event class's payload field type: "
"event-class-addr=%p, event-class-name=\"%s\", "
"event-class-id=%" PRId64 ", field-name=\"%s\", ft-addr=%p",
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class), name, type);
end:
return ret;
}
int bt_ctf_event_class_get_payload_type_field_by_index(
struct bt_ctf_event_class *event_class,
const char **field_name, struct bt_ctf_field_type **field_type,
uint64_t index)
{
int ret;
if (!event_class) {
BT_LOGW_STR("Invalid parameter: event class is NULL.");
ret = -1;
goto end;
}
if (!event_class->common.payload_field_type) {
BT_LOGV("Event class has no payload field type: "
"addr=%p, name=\"%s\", id=%" PRId64 ", index=%" PRIu64,
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class), index);
ret = -1;
goto end;
}
BT_ASSERT(bt_ctf_field_type_common_get_type_id(
event_class->common.payload_field_type) ==
BT_CTF_FIELD_TYPE_ID_STRUCT);
ret = bt_ctf_field_type_structure_get_field_by_index(
(void *) event_class->common.payload_field_type,
field_name, (void *) field_type, index);
end:
return ret;
}
int64_t bt_ctf_event_class_get_payload_type_field_count(
struct bt_ctf_event_class *event_class)
{
int64_t ret;
if (!event_class) {
BT_LOGW_STR("Invalid parameter: event class is NULL.");
ret = (int64_t) -1;
goto end;
}
if (!event_class->common.payload_field_type) {
BT_LOGV("Event class has no payload field type: "
"addr=%p, name=\"%s\", id=%" PRId64,
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class));
ret = (int64_t) -1;
goto end;
}
BT_ASSERT(bt_ctf_field_type_common_get_type_id(
event_class->common.payload_field_type) ==
BT_CTF_FIELD_TYPE_ID_STRUCT);
ret = bt_ctf_field_type_common_structure_get_field_count(
event_class->common.payload_field_type);
end:
return ret;
}
struct bt_ctf_field_type *
bt_ctf_event_class_get_payload_type_field_type_by_name(
struct bt_ctf_event_class *event_class, const char *name)
{
GQuark name_quark;
struct bt_ctf_field_type *field_type = NULL;
if (!event_class || !name) {
BT_LOGW("Invalid parameter: event class or name is NULL: "
"event-class-addr=%p, name-addr=%p",
event_class, name);
goto end;
}
if (!event_class->common.payload_field_type) {
BT_LOGV("Event class has no payload field type: "
"addr=%p, name=\"%s\", id=%" PRId64,
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class));
goto end;
}
BT_ASSERT(bt_ctf_field_type_common_get_type_id(
event_class->common.payload_field_type) ==
BT_CTF_FIELD_TYPE_ID_STRUCT);
name_quark = g_quark_try_string(name);
if (!name_quark) {
BT_LOGE("Cannot get GQuark: string=\"%s\"", name);
goto end;
}
/*
* No need to increment field_type's reference count since getting it
* from the structure already does.
*/
field_type = (void *)
bt_ctf_field_type_structure_get_field_type_by_name(
(void *) event_class->common.payload_field_type, name);
end:
return field_type;
}
BT_HIDDEN
struct bt_ctf_event *trimmer_output_event(
struct trimmer_iterator *trim_it,
struct bt_ctf_event *event)
{
struct bt_ctf_event_class *event_class = NULL;
struct bt_ctf_event *writer_event = NULL;
struct bt_ctf_packet *packet = NULL, *writer_packet = NULL;
const char *event_name;
int int_ret;
event_class = bt_ctf_event_get_class(event);
if (!event_class) {
fprintf(trim_it->err, "[error] %s in %s:%d\n", __func__,
__FILE__, __LINE__);
goto error;
}
event_name = bt_ctf_event_class_get_name(event_class);
if (!event_name) {
fprintf(trim_it->err, "[error] %s in %s:%d\n", __func__,
__FILE__, __LINE__);
goto error;
}
writer_event = ctf_copy_event(trim_it->err, event, event_class, false);
if (!writer_event) {
fprintf(trim_it->err, "[error] %s in %s:%d\n", __func__,
__FILE__, __LINE__);
fprintf(trim_it->err, "[error] Failed to copy event %s\n",
bt_ctf_event_class_get_name(event_class));
goto error;
}
packet = bt_ctf_event_get_packet(event);
if (!packet) {
fprintf(trim_it->err, "[error] %s in %s:%d\n", __func__,
__FILE__, __LINE__);
goto error;
}
writer_packet = lookup_packet(trim_it, packet);
if (!writer_packet) {
fprintf(trim_it->err, "[error] %s in %s:%d\n", __func__,
__FILE__, __LINE__);
goto error;
}
bt_get(writer_packet);
int_ret = bt_ctf_event_set_packet(writer_event, writer_packet);
if (int_ret < 0) {
fprintf(trim_it->err, "[error] %s in %s:%d\n", __func__,
__FILE__, __LINE__);
fprintf(trim_it->err, "[error] Failed to append event %s\n",
bt_ctf_event_class_get_name(event_class));
goto error;
}
/* We keep the reference on the writer_event to create a notification. */
goto end;
error:
BT_PUT(writer_event);
end:
bt_put(writer_packet);
bt_put(packet);
bt_put(event_class);
return writer_event;
}
BT_HIDDEN
int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
struct metadata_context *context)
{
int ret = 0;
struct bt_ctf_value *attr_value = NULL;
BT_ASSERT(event_class);
BT_ASSERT(context);
BT_LOGD("Serializing event class's metadata: "
"event-class-addr=%p, event-class-name=\"%s\", "
"event-class-id=%" PRId64 ", metadata-context-addr=%p",
event_class, bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class), context);
context->current_indentation_level = 1;
g_string_assign(context->field_name, "");
g_string_append(context->string, "event {\n");
/* Serialize attributes */
g_string_append_printf(context->string, "\tname = \"%s\";\n",
event_class->common.name->str);
BT_ASSERT(event_class->common.id >= 0);
g_string_append_printf(context->string, "\tid = %" PRId64 ";\n",
event_class->common.id);
g_string_append_printf(context->string, "\tstream_id = %" PRId64 ";\n",
bt_ctf_stream_class_common_get_id(
bt_ctf_event_class_common_borrow_stream_class(
BT_CTF_TO_COMMON(event_class))));
if (event_class->common.log_level !=
BT_CTF_EVENT_CLASS_LOG_LEVEL_UNSPECIFIED) {
g_string_append_printf(context->string, "\tloglevel = %d;\n",
(int) event_class->common.log_level);
}
if (event_class->common.emf_uri->len > 0) {
g_string_append_printf(context->string, "\tmodel.emf.uri = \"%s\";\n",
event_class->common.emf_uri->str);
}
/* Serialize context field type */
if (event_class->common.context_field_type) {
g_string_append(context->string, "\tcontext := ");
BT_LOGD_STR("Serializing event class's context field type metadata.");
ret = bt_ctf_field_type_serialize_recursive(
(void *) event_class->common.context_field_type,
context);
if (ret) {
BT_LOGW("Cannot serialize event class's context field type's metadata: "
"ret=%d", ret);
goto end;
}
g_string_append(context->string, ";\n");
}
/* Serialize payload field type */
if (event_class->common.payload_field_type) {
g_string_append(context->string, "\tfields := ");
BT_LOGD_STR("Serializing event class's payload field type metadata.");
ret = bt_ctf_field_type_serialize_recursive(
(void *) event_class->common.payload_field_type,
context);
if (ret) {
BT_LOGW("Cannot serialize event class's payload field type's metadata: "
"ret=%d", ret);
goto end;
}
g_string_append(context->string, ";\n");
}
g_string_append(context->string, "};\n\n");
end:
context->current_indentation_level = 0;
BT_CTF_OBJECT_PUT_REF_AND_RESET(attr_value);
return ret;
}
