notification->condition = condition;
notification->evaluation = evaluation;
- notification->owns_elements = false;
end:
return notification;
}
LTTNG_HIDDEN
-ssize_t lttng_notification_serialize(struct lttng_notification *notification,
- char *buf)
+int lttng_notification_serialize(const struct lttng_notification *notification,
+ struct lttng_dynamic_buffer *buf)
{
- ssize_t ret, condition_size, evaluation_size, offset = 0;
+ int ret;
+ size_t header_offset, size_before_payload;
struct lttng_notification_comm notification_comm = { 0 };
+ struct lttng_notification_comm *header;
- if (!notification) {
- ret = -1;
+ header_offset = buf->size;
+ ret = lttng_dynamic_buffer_append(buf, ¬ification_comm,
+ sizeof(notification_comm));
+ if (ret) {
goto end;
}
- offset += sizeof(notification_comm);
- condition_size = lttng_condition_serialize(notification->condition,
- buf ? (buf + offset) : NULL);
- if (condition_size < 0) {
- ret = condition_size;
+ size_before_payload = buf->size;
+ ret = lttng_condition_serialize(notification->condition,
+ buf);
+ if (ret) {
goto end;
}
- offset += condition_size;
- evaluation_size = lttng_evaluation_serialize(notification->evaluation,
- buf ? (buf + offset) : NULL);
- if (evaluation_size < 0) {
- ret = evaluation_size;
+ ret = lttng_evaluation_serialize(notification->evaluation, buf);
+ if (ret) {
goto end;
}
- offset += evaluation_size;
- if (buf) {
- notification_comm.length =
- (uint32_t) (condition_size + evaluation_size);
- memcpy(buf, ¬ification_comm, sizeof(notification_comm));
- }
- ret = offset;
+ /* Update payload size. */
+ header = (struct lttng_notification_comm *) ((char *) buf->data + header_offset);
+ header->length = (uint32_t) (buf->size - size_before_payload);
end:
return ret;
goto error;
}
ret = notification_size;
- (*notification)->owns_elements = true;
end:
return ret;
error:
return;
}
- if (notification->owns_elements) {
- lttng_condition_destroy(notification->condition);
- lttng_evaluation_destroy(notification->evaluation);
- }
+ lttng_condition_destroy(notification->condition);
+ lttng_evaluation_destroy(notification->evaluation);
free(notification);
}