source: source/ariba/utility/bootstrap/modules/periodicbroadcast/PeriodicBroadcast.cpp@ 4872

Last change on this file since 4872 was 4866, checked in by Christoph Mayer, 15 years ago

periodic bootstrap vervollständigt

File size: 5.5 KB
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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
33// notice, this list of conditions and the following disclaimer in the
34// documentation and/or other materials provided with the distribution.
35//
36// THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
37// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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
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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
73string PeriodicBroadcast::getName(){
74 return "PeriodicBroadcast";
75}
76
77string PeriodicBroadcast::getInformation(){
78 return "periodic broadcasting of service information";
79}
80
81bool PeriodicBroadcast::isFunctional(){
82 return true;
83}
84
85void PeriodicBroadcast::start(){
86 Timer::setInterval( timerinterval );
87 Timer::start();
88}
89
90void PeriodicBroadcast::stop(){
91 Timer::stop();
92
93 boost::mutex::scoped_lock lock( localServicesMutex );
94 localServices.clear();
95}
96
97void PeriodicBroadcast::publishService(string name, string info1, string info2, string info3){
98 Service service;
99
100 service.name = name;
101 service.info1 = info1;
102 service.info2 = info2;
103 service.info3 = info3;
104
105 boost::mutex::scoped_lock lock( localServicesMutex );
106 localServices.insert( std::make_pair(name, service) );
107}
108
109void PeriodicBroadcast::revokeService(string name){
110 boost::mutex::scoped_lock lock( localServicesMutex );
111
112 ServiceList::iterator i = localServices.find( name );
113 if( i != localServices.end() ) localServices.erase( name );
114}
115
116void PeriodicBroadcast::eventFunction(){
117 sendLocalServices();
118 updateRemoteServices();
119}
120
121void PeriodicBroadcast::sendLocalServices(){
122 boost::mutex::scoped_lock lock( localServicesMutex );
123
124 ServiceList::iterator i = localServices.begin();
125 ServiceList::iterator iend = localServices.end();
126
127 for( ; i != iend; i++)
128 server.sendservice( i->second );
129}
130
131void PeriodicBroadcast::updateRemoteServices(){
132
133 // cleanup the services that timed out
134 // so they are seen of as new after timeout
135 {
136 boost::mutex::scoped_lock lock( remoteServicesMutex );
137 bool deleted;
138
139 do {
140 deleted = false;
141
142 ServiceList::iterator i = remoteServices.begin();
143 ServiceList::iterator iend = remoteServices.end();
144
145 for( ; i != iend; i++ ){
146
147 if( time(NULL) > (i->second.lastseen + servicetimeout) ){
148 remoteServices.erase( i );
149 deleted = true;
150 break;
151 }
152 }
153
154 }while(deleted);
155 }
156
157 // check if we received new services:
158 // check remoteServices against newRemoteServices
159 {
160 boost::mutex::scoped_lock lock( newRemoteServicesMutex );
161 typedef std::pair<string,Service> mapitem;
162
163 BOOST_FOREACH( mapitem item, newRemoteServices ){
164
165 string name = item.first;
166 Service service = item.second;
167
168 ServiceList::iterator i = remoteServices.find( name );
169 if( i != remoteServices.end() ) {
170 // update the item lastseen time
171 i->second.lastseen = service.lastseen;
172 continue;
173 }
174
175 {
176 // insert the new item as new, lastseen has been set in the
177 // receive function, as this timer only runs in intervals
178 boost::mutex::scoped_lock lock2( remoteServicesMutex );
179 remoteServices.insert( std::make_pair(name, service) );
180 }
181
182 callback->onBootstrapServiceFound(name, service.info1, service.info2, service.info3);
183 }
184
185 // we have checked and transfered all new items
186 newRemoteServices.clear();
187 }
188}
189
190}} //namespace ariba, utility
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