source: source/ariba/utility/bootstrap/modules/periodicbroadcast/PeriodicBroadcast.cpp@ 4921

Last change on this file since 4921 was 4920, checked in by Christoph Mayer, 15 years ago

-bootstrap fixing und ablauf

File size: 5.6 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
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
39// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR
40// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
41// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
42// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
43// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
44// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
45// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
46// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
47//
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 io_service.run();
70}
71
72PeriodicBroadcast::~PeriodicBroadcast(){
73 io_service.stop();
74}
75
76string PeriodicBroadcast::getName(){
77 return "PeriodicBroadcast";
78}
79
80string PeriodicBroadcast::getInformation(){
81 return "periodic broadcasting of service information";
82}
83
84bool PeriodicBroadcast::isFunctional(){
85 return true;
86}
87
88void PeriodicBroadcast::start(){
89 Timer::setInterval( timerinterval );
90 Timer::start();
91}
92
93void PeriodicBroadcast::stop(){
94 Timer::stop();
95
96 boost::mutex::scoped_lock lock( localServicesMutex );
97 localServices.clear();
98}
99
100void PeriodicBroadcast::publishService(string name, string info1, string info2, string info3){
101 Service service;
102
103 service.name = name;
104 service.info1 = info1;
105 service.info2 = info2;
106 service.info3 = info3;
107
108 boost::mutex::scoped_lock lock( localServicesMutex );
109 localServices.insert( std::make_pair(name, service) );
110}
111
112void PeriodicBroadcast::revokeService(string name){
113 boost::mutex::scoped_lock lock( localServicesMutex );
114
115 ServiceList::iterator i = localServices.find( name );
116 if( i != localServices.end() ) localServices.erase( name );
117}
118
119void PeriodicBroadcast::eventFunction(){
120 sendLocalServices();
121 updateRemoteServices();
122}
123
124void PeriodicBroadcast::sendLocalServices(){
125 boost::mutex::scoped_lock lock( localServicesMutex );
126
127 ServiceList::iterator i = localServices.begin();
128 ServiceList::iterator iend = localServices.end();
129
130 for( ; i != iend; i++)
131 server.sendservice( i->second );
132}
133
134void PeriodicBroadcast::updateRemoteServices(){
135
136 // cleanup the services that timed out
137 // so they are seen of as new after timeout
138 {
139 boost::mutex::scoped_lock lock( remoteServicesMutex );
140 bool deleted;
141
142 do {
143 deleted = false;
144
145 ServiceList::iterator i = remoteServices.begin();
146 ServiceList::iterator iend = remoteServices.end();
147
148 for( ; i != iend; i++ ){
149
150 if( time(NULL) > (i->second.lastseen + servicetimeout) ){
151 remoteServices.erase( i );
152 deleted = true;
153 break;
154 }
155 }
156
157 }while(deleted);
158 }
159
160 // check if we received new services:
161 // check remoteServices against newRemoteServices
162 {
163 boost::mutex::scoped_lock lock( newRemoteServicesMutex );
164 typedef std::pair<string,Service> mapitem;
165
166 BOOST_FOREACH( mapitem item, newRemoteServices ){
167
168 string name = item.first;
169 Service service = item.second;
170
171 ServiceList::iterator i = remoteServices.find( name );
172 if( i != remoteServices.end() ) {
173 // update the item lastseen time
174 i->second.lastseen = service.lastseen;
175 continue;
176 }
177
178 {
179 // insert the new item as new, lastseen has been set in the
180 // receive function, as this timer only runs in intervals
181 boost::mutex::scoped_lock lock2( remoteServicesMutex );
182 remoteServices.insert( std::make_pair(name, service) );
183 }
184
185 callback->onBootstrapServiceFound(name, service.info1, service.info2, service.info3);
186 }
187
188 // we have checked and transfered all new items
189 newRemoteServices.clear();
190 }
191}
192
193}} //namespace ariba, utility
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