source: source/ariba/utility/bootstrap/modules/periodicbroadcast/PeriodicBroadcast.cpp@ 5358

Last change on this file since 5358 was 5316, checked in by Christoph Mayer, 15 years ago

merge from bootstrap branch

File size: 5.8 KB
Line 
1// [License]
2// The Ariba-Underlay Copyright
3//
4// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
5//
6// Institute of Telematics
7// UniversitÀt Karlsruhe (TH)
8// Zirkel 2, 76128 Karlsruhe
9// Germany
10//
11// Redistribution and use in source and binary forms, with or without
12// modification, are permitted provided that the following conditions are
13// met:
14//
15// 1. Redistributions of source code must retain the above copyright
16// notice, this list of co// [License]
17// The Ariba-Underlay Copyright
18//
19// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
20//
21// Institute of Telematics
22// UniversitÀt Karlsruhe (TH)
23// Zirkel 2, 76128 Karlsruhe
24// Germany
25//
26// Redistribution and use in source and binary forms, with or without
27// modification, are permitted provided that the following conditions are
28// met:
29//
30// 1. Redistributions of source code must retain the above copyright
31// notice, this list of conditions and the following disclaimer.
32// 2. Redistributions in binary form must reproduce the above copyright
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34// documentation and/or other materials provided with the distribution.
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36// THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
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38// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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48// The views and conclusions contained in the software and documentation
49// are those of the authors and should not be interpreted as representing
50// official policies, either expressed or implied, of the Institute of
51// Telematics.
52// [License]
53
54#include "PeriodicBroadcast.h"
55
56namespace ariba {
57namespace utility {
58
59use_logging_cpp(PeriodicBroadcast);
60const long PeriodicBroadcast::timerinterval = 1000;
61const long PeriodicBroadcast::servicetimeout = 3000;
62const unsigned int PeriodicBroadcast::serverport_v4 = 5634;
63const unsigned int PeriodicBroadcast::serverport_v6 = 5636;
64
65PeriodicBroadcast::PeriodicBroadcast(BootstrapInformationCallback* _callback)
66 : BootstrapModule(_callback),
67 server(io_service, &newRemoteServices, &newRemoteServicesMutex) {
68}
69
70PeriodicBroadcast::~PeriodicBroadcast(){
71}
72
73void PeriodicBroadcast::threadFunc(PeriodicBroadcast* obj){
74 obj->io_service.run();
75}
76
77string PeriodicBroadcast::getName(){
78 return "PeriodicBroadcast";
79}
80
81string PeriodicBroadcast::getInformation(){
82 return "periodic broadcasting of service information";
83}
84
85bool PeriodicBroadcast::isFunctional(){
86 return true;
87}
88
89void PeriodicBroadcast::start(){
90 io_service_thread = new boost::thread(
91 boost::bind(&PeriodicBroadcast::threadFunc, this) );
92
93 Timer::setInterval( timerinterval );
94 Timer::start();
95}
96
97void PeriodicBroadcast::stop(){
98 io_service.stop();
99 io_service_thread->join();
100 delete io_service_thread;
101 io_service_thread = NULL;
102
103 Timer::stop();
104
105 boost::mutex::scoped_lock lock( localServicesMutex );
106 localServices.clear();
107}
108
109void PeriodicBroadcast::publishService(string name, string info1, string info2, string info3){
110 Service service;
111
112 service.name = name;
113 service.info1 = info1;
114 service.info2 = info2;
115 service.info3 = info3;
116
117 boost::mutex::scoped_lock lock( localServicesMutex );
118 localServices.insert( std::make_pair(name, service) );
119}
120
121void PeriodicBroadcast::revokeService(string name){
122 boost::mutex::scoped_lock lock( localServicesMutex );
123
124 ServiceList::iterator i = localServices.find( name );
125 if( i != localServices.end() ) localServices.erase( name );
126}
127
128void PeriodicBroadcast::eventFunction(){
129 sendLocalServices();
130 updateRemoteServices();
131}
132
133void PeriodicBroadcast::sendLocalServices(){
134 boost::mutex::scoped_lock lock( localServicesMutex );
135
136 ServiceList::iterator i = localServices.begin();
137 ServiceList::iterator iend = localServices.end();
138
139 for( ; i != iend; i++)
140 server.sendservice( i->second );
141}
142
143void PeriodicBroadcast::updateRemoteServices(){
144
145 // cleanup the services that timed out
146 // so they are seen of as new after timeout
147 {
148 boost::mutex::scoped_lock lock( remoteServicesMutex );
149 bool deleted;
150
151 do {
152 deleted = false;
153
154 ServiceList::iterator i = remoteServices.begin();
155 ServiceList::iterator iend = remoteServices.end();
156
157 for( ; i != iend; i++ ){
158
159 if( time(NULL) > (i->second.lastseen + servicetimeout) ){
160 remoteServices.erase( i );
161 deleted = true;
162 break;
163 }
164 }
165
166 }while(deleted);
167 }
168
169 // check if we received new services:
170 // check remoteServices against newRemoteServices
171 {
172 boost::mutex::scoped_lock lock( newRemoteServicesMutex );
173 typedef std::pair<string,Service> mapitem;
174
175 BOOST_FOREACH( mapitem item, newRemoteServices ){
176
177 string name = item.first;
178 Service service = item.second;
179
180 ServiceList::iterator i = remoteServices.find( name );
181 if( i != remoteServices.end() ) {
182 // update the item lastseen time
183 i->second.lastseen = service.lastseen;
184 continue;
185 }
186
187 {
188 // insert the new item as new, lastseen has been set in the
189 // receive function, as this timer only runs in intervals
190 boost::mutex::scoped_lock lock2( remoteServicesMutex );
191 remoteServices.insert( std::make_pair(name, service) );
192 }
193
194 callback->onBootstrapServiceFound(name, service.info1, service.info2, service.info3);
195 }
196
197 // we have checked and transfered all new items
198 newRemoteServices.clear();
199 }
200}
201
202}} //namespace ariba, utility
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