00001 // 00002 // iodev.hh : Diffusion IO Devices Include File 00003 // authors : Fabio Silva 00004 // 00005 // Copyright (C) 2000-2002 by the University of Southern California 00006 // $Id: iodev.hh,v 1.8 2005/09/13 04:53:49 tomh Exp $ 00007 // 00008 // This program is free software; you can redistribute it and/or 00009 // modify it under the terms of the GNU General Public License, 00010 // version 2, as published by the Free Software Foundation. 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 along 00018 // with this program; if not, write to the Free Software Foundation, Inc., 00019 // 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. 00020 // 00021 // Linking this file statically or dynamically with other modules is making 00022 // a combined work based on this file. Thus, the terms and conditions of 00023 // the GNU General Public License cover the whole combination. 00024 // 00025 // In addition, as a special exception, the copyright holders of this file 00026 // give you permission to combine this file with free software programs or 00027 // libraries that are released under the GNU LGPL and with code included in 00028 // the standard release of ns-2 under the Apache 2.0 license or under 00029 // otherwise-compatible licenses with advertising requirements (or modified 00030 // versions of such code, with unchanged license). You may copy and 00031 // distribute such a system following the terms of the GNU GPL for this 00032 // file and the licenses of the other code concerned, provided that you 00033 // include the source code of that other code when and as the GNU GPL 00034 // requires distribution of source code. 00035 // 00036 // Note that people who make modified versions of this file are not 00037 // obligated to grant this special exception for their modified versions; 00038 // it is their choice whether to do so. The GNU General Public License 00039 // gives permission to release a modified version without this exception; 00040 // this exception also makes it possible to release a modified version 00041 // which carries forward this exception. 00042 // 00043 00044 // This file defines the basic interface between diffusion device 00045 // drivers and the Diffusion Core (or the Diffusion Routing Library 00046 // API). It provides basic functionality to send and receive packets 00047 // and also keeps track of input/output file descriptors that can be 00048 // used on select(). 00049 00050 #ifndef _IODEV_HH_ 00051 #define _IODEV_HH_ 00052 00053 #ifdef HAVE_CONFIG_H 00054 #include "config.h" 00055 #endif // HAVE_CONFIG_H 00056 00057 #include <list> 00058 00059 #include "header.hh" 00060 #include "tools.hh" 00061 00062 using namespace std; 00063 00064 class DiffusionIO { 00065 public: 00066 DiffusionIO(); 00067 00068 virtual ~DiffusionIO(){ 00069 // Nothing to do 00070 }; 00071 00072 virtual void addInFDS(fd_set *fds, int *max); 00073 virtual bool hasFD(int fd); 00074 virtual int checkInFDS(fd_set *fds); 00075 virtual DiffPacket recvPacket(int fd) = 0; 00076 virtual void sendPacket(DiffPacket p, int len, int dst) = 0; 00077 00078 protected: 00079 int num_out_descriptors_; 00080 int num_in_descriptors_; 00081 int max_in_descriptor_; 00082 list<int> in_fds_; 00083 list<int> out_fds_; 00084 }; 00085 00086 typedef list<DiffusionIO *> DeviceList; 00087 00088 #endif // !_IODEV_HH_