packet.h
00001 /* 00002 * Player - One Hell of a Robot Server 00003 * Copyright (C) 2000 00004 * Brian Gerkey, Kasper Stoy, Richard Vaughan, & Andrew Howard 00005 * 00006 * 00007 * This program is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 2 of the License, or 00010 * (at your option) any later version. 00011 * 00012 * This program is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with this program; if not, write to the Free Software 00019 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00020 * 00021 */ 00022 00023 /* 00024 * $Id: packet.h 8184 2009-08-07 08:48:58Z gbiggs $ 00025 * part of the P2OS parser. this class has methods for building, 00026 * printing, sending and receiving P2OS packets. 00027 * 00028 */ 00029 00030 #ifndef _PACKET_H 00031 #define _PACKET_H 00032 00033 #include <string.h> 00034 00035 #include <libplayercore/globals.h> 00036 #include <libplayercore/wallclocktime.h> 00037 00038 #define PACKET_LEN 256 00039 00040 class P2OSPacket 00041 { 00042 public: 00043 unsigned char packet[PACKET_LEN]; 00044 unsigned char size; 00045 double timestamp; 00046 00047 int CalcChkSum(); 00048 00049 void Print(); 00050 void PrintHex(); 00051 int Build( unsigned char *data, unsigned char datasize ); 00052 int Send( int fd ); 00053 int Receive( int fd, bool ignore_checksum ); 00054 bool Check( bool ignore_checksum = false ); 00055 00056 bool operator!= ( P2OSPacket p ) { 00057 if ( size != p.size) return(true); 00058 00059 if ( memcmp( packet, p.packet, size ) != 0 ) return (true); 00060 00061 return(false); 00062 } 00063 }; 00064 00065 #endif