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source: source/ariba/utility/bootstrap/modules/periodicbroadcast/PeriodicBroadcast.cpp @ 7468

Last change on this file since 7468 was 5838, checked in by Christoph Mayer, 15 years ago

watchdog bootstrapping und kleine relay fixes

File size: 5.7 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
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
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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 = 1;
61const long PeriodicBroadcast::servicetimeout = 3;
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*1000 );
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
106void PeriodicBroadcast::publishService(string name, string info1, string info2, string info3){
107        Service service(name, info1, info2, info3) ;
108
109        boost::mutex::scoped_lock lock( localServicesMutex );
110        localServices.insert( std::make_pair(name, service) );
111}
112
113void PeriodicBroadcast::revokeService(string name){
114        boost::mutex::scoped_lock lock( localServicesMutex );
115
116        ServiceList::iterator i = localServices.find( name );
117        if( i != localServices.end() ) localServices.erase( name );
118}
119
120void PeriodicBroadcast::eventFunction(){
121        sendLocalServices();
122        updateRemoteServices();
123}
124
125void PeriodicBroadcast::sendLocalServices(){
126        boost::mutex::scoped_lock lock( localServicesMutex );
127
128        ServiceList::iterator i = localServices.begin();
129        ServiceList::iterator iend = localServices.end();
130
131        for( ; i != iend; i++)
132                server.sendservice( i->second );
133}
134
135void PeriodicBroadcast::updateRemoteServices(){
136
137        // cleanup the services that timed out
138        // so they are seen of as new after timeout
139        {
140                boost::mutex::scoped_lock lock( remoteServicesMutex );
141                bool deleted;
142
143                do {
144                        deleted = false;
145
146                        ServiceList::iterator i = remoteServices.begin();
147                        ServiceList::iterator iend = remoteServices.end();
148
149                        for( ; i != iend; i++ ){
150
151                                if( time(NULL) > (i->second.getLastseen() + servicetimeout) ){
152                                        remoteServices.erase( i );
153                                        deleted = true;
154                                        break;
155                                }
156                        }
157
158                } while(deleted);
159        }
160
161        // check if we received new services:
162        // check remoteServices against newRemoteServices
163        {
164                boost::mutex::scoped_lock lock( newRemoteServicesMutex );
165                typedef std::pair<string,Service> mapitem;
166
167                BOOST_FOREACH( mapitem item, newRemoteServices ){
168
169                        string name = item.first;
170                        Service service = item.second;
171
172                        ServiceList::iterator i = remoteServices.find( name );
173                        if( i != remoteServices.end() ) {
174                                // update the item lastseen time
175                                i->second.setLastseen( service.getLastseen() );
176                                continue;
177                        }
178
179                        {
180                                // insert the new item as new, lastseen has been set in the
181                                // receive function, as this timer only runs in intervals
182                                boost::mutex::scoped_lock lock2( remoteServicesMutex );
183                                remoteServices.insert( std::make_pair(name, service) );
184                        }
185
186                        callback->onBootstrapServiceFound(name,
187                                        service.getInfo1(), service.getInfo2(), service.getInfo3());
188                }
189
190                // we have checked and transfered all new items
191                newRemoteServices.clear();
192        }
193}
194
195}} //namespace ariba, utility
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