00001 00002 /* 00003 * srm-ssm.h 00004 * Copyright (C) 2000 by the University of Southern California 00005 * $Id: srm-ssm.h,v 1.6 2005/09/22 07:43:33 lacage Exp $ 00006 * 00007 * This program is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU General Public License, 00009 * version 2, as published by the Free Software Foundation. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License along 00017 * with this program; if not, write to the Free Software Foundation, Inc., 00018 * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. 00019 * 00020 * 00021 * The copyright of this module includes the following 00022 * linking-with-specific-other-licenses addition: 00023 * 00024 * In addition, as a special exception, the copyright holders of 00025 * this module give you permission to combine (via static or 00026 * dynamic linking) this module with free software programs or 00027 * libraries that are released under the GNU LGPL and with code 00028 * included in the standard release of ns-2 under the Apache 2.0 00029 * license or under otherwise-compatible licenses with advertising 00030 * requirements (or modified versions of such code, with unchanged 00031 * license). You may copy and distribute such a system following the 00032 * terms of the GNU GPL for this module and the licenses of the 00033 * other code concerned, provided that you include the source code of 00034 * that other code when and as the GNU GPL requires distribution of 00035 * source code. 00036 * 00037 * Note that people who make modified versions of this module 00038 * are not obligated to grant this special exception for their 00039 * modified versions; it is their choice whether to do so. The GNU 00040 * General Public License gives permission to release a modified 00041 * version without this exception; this exception also makes it 00042 * possible to release a modified version which carries forward this 00043 * exception. 00044 * 00045 */ 00046 00047 // 00048 // $Header: /cvsroot/nsnam/ns-2/mcast/srm-ssm.h,v 1.6 2005/09/22 07:43:33 lacage Exp $ 00049 00050 #ifndef ns_ssmsrm_h 00051 #define ns_ssmsrm_h 00052 00053 #include "config.h" 00054 //#include "heap.h" 00055 #include "srm-state.h" 00056 00057 00058 /* Constants for scope flags and types of session messages */ 00059 #define SRM_LOCAL 1 00060 #define SRM_GLOBAL 2 00061 #define SRM_RINFO 3 /* Session Message with reps information */ 00062 00063 struct hdr_srm_ext { 00064 int repid_; 00065 int origTTL_; 00066 00067 static int offset_; 00068 inline static int& offset() { return offset_; } 00069 inline static hdr_srm_ext* access(const Packet* p) { 00070 return (hdr_srm_ext*) p->access(offset_); 00071 } 00072 00073 // per field member functions 00074 int& repid() { return repid_; } 00075 int& ottl() { return origTTL_; } 00076 }; 00077 00078 class SSMSRMAgent : public SRMAgent 00079 { 00080 int glb_sessCtr_; /* # of global session messages sent */ 00081 int loc_sessCtr_; /* # of local session messages sent */ 00082 int rep_sessCtr_; /* # of rep session messages sent */ 00083 int scopeFlag_; 00084 int groupScope_; /* Scope of the group, ttl */ 00085 int localScope_; /* Scope of the local messages, ttl */ 00086 int senderFlag_; 00087 int repid_; 00088 00089 void recv_data(int sender, int id, int repid, u_char* data); 00090 //void recv_repr(int sender, int msgid, int repid, u_char* data); 00091 void recv_rqst(int requestor, int round, int sender, int msgid, int repid); 00092 void recv_sess(int sessCtr, int* data, Packet *p); 00093 void recv_glb_sess(int sessCtr, int* data, Packet *p); 00094 void recv_loc_sess(int sessCtr, int* data, Packet *p); 00095 void recv_rep_sess(int sessCtr, int* data, Packet *p); 00096 void send_ctrl(int type, int round, int sender, int msgid, int size); 00097 void send_sess(); 00098 void send_glb_sess(); 00099 void send_loc_sess(); 00100 void send_rep_sess(); 00101 void timeout_info(); 00102 int is_active(SRMinfo *sp); 00103 public: 00104 SSMSRMAgent(); 00105 int command(int argc, const char*const* argv); 00106 void recv(Packet* p, Handler* h); 00107 }; 00108 00109 00110 #endif // ns_srm_ssm_h