dr.hh
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- //
- // dr.hh : Diffusion Routing Class Definitions
- // authors : John Heidemann and Fabio Silva
- //
- // Copyright (C) 2000-2003 by the University of Southern California
- // $Id: dr.hh,v 1.17 2005/09/13 04:53:49 tomh Exp $
- //
- // This program is free software; you can redistribute it and/or
- // modify it under the terms of the GNU General Public License,
- // version 2, as published by the Free Software Foundation.
- //
- // 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, write to the Free Software Foundation, Inc.,
- // 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- //
- // Linking this file statically or dynamically with other modules is making
- // a combined work based on this file. Thus, the terms and conditions of
- // the GNU General Public License cover the whole combination.
- //
- // In addition, as a special exception, the copyright holders of this file
- // give you permission to combine this file with free software programs or
- // libraries that are released under the GNU LGPL and with code included in
- // the standard release of ns-2 under the Apache 2.0 license or under
- // otherwise-compatible licenses with advertising requirements (or modified
- // versions of such code, with unchanged license). You may copy and
- // distribute such a system following the terms of the GNU GPL for this
- // file and the licenses of the other code concerned, provided that you
- // include the source code of that other code when and as the GNU GPL
- // requires distribution of source code.
- //
- // Note that people who make modified versions of this file are not
- // obligated to grant this special exception for their modified versions;
- // it is their choice whether to do so. The GNU General Public License
- // gives permission to release a modified version without this exception;
- // this exception also makes it possible to release a modified version
- // which carries forward this exception.
- // This file defines Diffusion Routing's Publish/Subscribe, Filter and
- // Timer APIs. It is included from diffapp.hh (and therefore
- // applications and filters should include diffapp.hh instead). For a
- // detailed description of the API, please look at the Diffusion
- // Routing API document (available at the SCADDS website:
- // http://www.isi.edu/scadds).
- #ifndef _DR_HH_
- #define _DR_HH_
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif // HAVE_CONFIG_H
- #include <pthread.h>
- #include <string.h>
- #include <math.h>
- #include <map>
- #include "main/timers.hh"
- #include "main/filter.hh"
- #include "main/config.hh"
- #include "main/iodev.hh"
- #include "main/tools.hh"
- #ifdef NS_DIFFUSION
- #include "diffagent.h"
- #endif // NS_DIFFUSION
- #ifdef UDP
- #include "drivers/UDPlocal.hh"
- #endif // UDP
- #define WAIT_FOREVER -1
- #define POLLING_INTERVAL 10 // seconds
- #define SMALL_TIMEOUT 10 // milliseconds
- typedef long handle;
- class HandleEntry;
- class CallbackEntry;
- class DiffusionRouting;
- typedef list<HandleEntry *> HandleList;
- typedef list<CallbackEntry *> CallbackList;
- class TimerCallbacks {
- public:
- virtual ~TimerCallbacks () {}
- virtual int expire(handle hdl, void *p) = 0;
- virtual void del(void *p) = 0;
- };
- class InterestCallback : public TimerCallback {
- public:
- InterestCallback(DiffusionRouting *drt, HandleEntry *handle_entry) :
- drt_(drt), handle_entry_(handle_entry) {};
- ~InterestCallback() {};
- int expire();
- DiffusionRouting *drt_;
- HandleEntry *handle_entry_;
- };
- class FilterKeepaliveCallback : public TimerCallback {
- public:
- FilterKeepaliveCallback(DiffusionRouting *drt, FilterEntry *filter_entry) :
- drt_(drt), filter_entry_(filter_entry) {};
- ~FilterKeepaliveCallback() {};
- int expire();
- DiffusionRouting *drt_;
- FilterEntry *filter_entry_;
- };
- class OldAPITimer : public TimerCallback {
- public:
- OldAPITimer(TimerCallbacks *cb, void *p) :
- cb_(cb), p_(p) {};
- ~OldAPITimer() {};
- int expire();
- TimerCallbacks *cb_;
- void *p_;
- };
- // Rmst specific definitions
- typedef map<int, void*, less<int> > Int2Frag;
- class RecRmst {
- public:
- RecRmst(int id){rmst_no_ = id;}
- ~RecRmst(){
- void *tmp_frag_ptr;
- Int2Frag::iterator frag_iterator;
- for(frag_iterator=frag_map_.begin(); frag_iterator!=frag_map_.end(); ++frag_iterator){
- tmp_frag_ptr = (void*)(*frag_iterator).second;
- delete((char *)tmp_frag_ptr);
- }
- }
- int rmst_no_;
- int max_frag_;
- int max_frag_len_;
- int mtu_len_;
- Int2Frag frag_map_;
- };
- typedef map<int, RecRmst*, less<int> > Int2RecRmst;
- class DiffusionRouting : public NR {
- public:
- #ifdef NS_DIFFUSION
- DiffusionRouting(u_int16_t port, DiffAppAgent *da);
- int getNodeId(); // node-id
- int getAgentId(int id = -1); // port-id
- MobileNode *getNode(MobileNode *mn = 0)
- {
- if (mn != 0)
- node_ = mn;
- return node_;
- };
- #else
- DiffusionRouting(u_int16_t port);
- void run(bool wait_condition, long max_timeout);
- #endif // NS_DIFFUSION
- virtual ~DiffusionRouting();
- // NR Publish/Subscribe API functions
- handle subscribe(NRAttrVec *subscribe_attrs, NR::Callback *cb);
- int unsubscribe(handle subscription_handle);
- handle publish(NRAttrVec *publish_attrs);
- int unpublish(handle publication_handle);
- int send(handle publication_handle, NRAttrVec *send_attrs);
- int sendRmst(handle publication_handle, NRAttrVec *send_attrs, int fragment_size);
- // NR Filter API functions
- handle addFilter(NRAttrVec *filter_attrs, u_int16_t priority,
- FilterCallback *cb);
- int removeFilter(handle filter_handle);
- int sendMessage(Message *msg, handle h, u_int16_t priority = FILTER_KEEP_PRIORITY);
- int addToBlacklist(int32_t node);
- int clearBlacklist();
- // NR Timer API functions
- handle addTimer(int timeout, TimerCallback *callback);
- // This is an old API function that will be discontinued in
- // diffusion's next major release
- handle addTimer(int timeout, void *param, TimerCallbacks *cb);
- bool removeTimer(handle hdl);
- // NR API functions that allow single thread support
- void doIt();
- void doOne(long timeout = WAIT_FOREVER);
- int interestTimeout(HandleEntry *handle_entry);
- int filterKeepaliveTimeout(FilterEntry *filter_entry);
- #ifndef NS_DIFFUSION
- // Outside NS, all these can be protected members
- protected:
- #endif // !NS_DIFFUSION
- void recvPacket(DiffPacket pkt);
- void recvMessage(Message *msg);
- #ifdef NS_DIFFUSION
- // In NS, the protected members start here
- protected:
- // Handle to MobileNode
- MobileNode *node_;
- #endif // NS_DIFFUSION
- void sendMessageToDiffusion(Message *msg);
- void sendPacketToDiffusion(DiffPacket pkt, int len, int dst);
- bool processRmst(Message *msg);
- void processMessage(Message *msg);
- void processControlMessage(Message *msg);
- bool checkSubscription(NRAttrVec *attrs);
- bool checkPublication(NRAttrVec *attrs);
- bool checkSend(NRAttrVec *attrs);
- bool isPushData(NRAttrVec *attrs);
- HandleEntry * removeHandle(handle my_handle, HandleList *hl);
- HandleEntry * findHandle(handle my_handle, HandleList *hl);
- FilterEntry * deleteFilter(handle my_handle);
- FilterEntry * findFilter(handle my_handle);
- bool hasScope(NRAttrVec *attrs);
- // RMST support
- Int2RecRmst rec_rmst_map_;
- // Handle variables
- int next_handle_;
- HandleList pub_list_;
- HandleList sub_list_;
- FilterList filter_list_;
- // Threads and Mutexes
- pthread_mutex_t *dr_mtx_;
- // Data structures
- TimerManager *timers_manager_;
- // Lists
- DeviceList in_devices_;
- DeviceList local_out_devices_;
- // Node-specific variables
- u_int16_t diffusion_port_;
- int pkt_count_;
- int random_id_;
- #ifdef NS_DIFFUSION
- int agent_id_;
- #else
- u_int16_t agent_id_;
- #endif // NS_DIFFUSION
- };
- #endif // !_DR_HH_