/** Message related functions * * @file * @author Steffen Vogel * @copyright 2017, Institute for Automation of Complex Power Systems, EONERC * @license GNU General Public License (version 3) * * VILLASnode * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . *********************************************************************************/ #pragma once /* Forward declarations. */ struct webmsg; /** Swaps the byte-order of the message. * * Message are always transmitted in network (big endian) byte order. * * @param m A pointer to the message */ void webmsg_hdr_ntoh(struct webmsg *m); void webmsg_hdr_hton(struct webmsg *m); void webmsg_ntoh(struct webmsg *m); void webmsg_hton(struct webmsg *m); /** Check the consistency of a message. * * The functions checks the header fields of a message. * * @param m A pointer to the message * @retval 0 The message header is valid. * @retval <0 The message header is invalid. */ int msg_verify(struct webmsg *m);