SimContact.h

Go to the documentation of this file.
00001 /*
00002  * IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. By
00003  * downloading, copying, installing or using the software you agree to
00004  * this license. If you do not agree to this license, do not download,
00005  * install, copy or use the software.
00006  * 
00007  * Intel Open Source License 
00008  * 
00009  * Copyright (c) 2004 Intel Corporation. All rights reserved. 
00010  * 
00011  * Redistribution and use in source and binary forms, with or without
00012  * modification, are permitted provided that the following conditions are
00013  * met:
00014  * 
00015  *   Redistributions of source code must retain the above copyright
00016  *   notice, this list of conditions and the following disclaimer.
00017  * 
00018  *   Redistributions in binary form must reproduce the above copyright
00019  *   notice, this list of conditions and the following disclaimer in the
00020  *   documentation and/or other materials provided with the distribution.
00021  * 
00022  *   Neither the name of the Intel Corporation nor the names of its
00023  *   contributors may be used to endorse or promote products derived from
00024  *   this software without specific prior written permission.
00025  *  
00026  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00027  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00028  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
00029  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR
00030  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00031  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00032  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00033  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00034  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00035  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00036  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00037  */
00038 #ifndef _SIM_CONTACT_H_
00039 #define _SIM_CONTACT_H_
00040 
00041 
00042 #include <oasys/debug/DebugUtils.h>
00043 #include <oasys/debug/Log.h>
00044 
00045 
00046 #include "Node.h"
00047 #include "Processable.h"
00048 #include "SimEvent.h"
00049 #include "Message.h"
00050 
00051 namespace dtnsim {
00052 
00053 
00054 class Event;
00055 class Event_chew_fin;
00056 
00060 class SimContact : public oasys::Logger, public Processable {
00061 
00062 public:
00063     
00064     static const bool ALLOW_FRAGMENTATION = false;
00065     static const bool DISALLOW_FRACTIONAL_TRANSFERS = true;
00066     
00067     SimContact (int id, Node* src, Node* dst, double bw, 
00068                 double latency, bool isup, int up, int down);
00069     
00070     
00071     
00072     bool  is_open() ;                
00073     
00074    /* A message can be sent on a contact only if it is open.
00075     * The contact itself has no queue. It resembles an actual
00076     * link
00077     */
00078     void chew_message(Message* msg) ; 
00079 
00080     Node* src() { return src_; }  
00081     Node* dst() { return dst_; }
00082     int id() { return id_; }
00083 
00084 private:
00085 //    static long total_;
00086     int id_;
00087     Node* src_ ;
00088     Node* dst_ ;
00089     double latency_;
00090     double bw_;
00091     // Probability_Distribution* uptime_; ///< sequence of uptimes
00092     // Probability_Distribution* downtime_; ///< sequence of downtimes
00093 
00094     int up_; 
00095     int down_;
00096 
00097     typedef enum {
00098         OPEN = 1, // Available to send a message
00099         BUSY = 2, // Currently sending a message
00100         CLOSE = 3 
00101     } state_t;
00102     
00103     state_t state_;
00104 
00105     Event_chew_fin* chewing_event_ ; 
00106     Event* future_updown_event_;     
00107 
00108     void  open_contact(bool b) ;    
00109     void  close_contact(bool b) ;   
00110     void  process(Event* e) ;       
00111     void  chewing_complete(double size, Message* msg) ;
00112 };
00113 } // namespace dtnsim
00114 
00115 #endif /* _SIM_CONTACT_H_ */

Generated on Fri Dec 22 14:48:00 2006 for DTN Reference Implementation by  doxygen 1.5.1