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00054 #include "PeriodicBroadcast.h"
00055
00056 namespace ariba {
00057 namespace utility {
00058
00059 use_logging_cpp(PeriodicBroadcast);
00060 const long PeriodicBroadcast::timerinterval = 1;
00061 const long PeriodicBroadcast::servicetimeout = 3;
00062 const unsigned int PeriodicBroadcast::serverport_v4 = 5634;
00063 const unsigned int PeriodicBroadcast::serverport_v6 = 5636;
00064
00065 PeriodicBroadcast::PeriodicBroadcast(BootstrapInformationCallback* _callback)
00066 : BootstrapModule(_callback),
00067 server(io_service, &newRemoteServices, &newRemoteServicesMutex) {
00068 }
00069
00070 PeriodicBroadcast::~PeriodicBroadcast(){
00071 }
00072
00073 void PeriodicBroadcast::threadFunc(PeriodicBroadcast* obj){
00074 obj->io_service.run();
00075 }
00076
00077 string PeriodicBroadcast::getName(){
00078 return "PeriodicBroadcast";
00079 }
00080
00081 string PeriodicBroadcast::getInformation(){
00082 return "periodic broadcasting of service information";
00083 }
00084
00085 bool PeriodicBroadcast::isFunctional(){
00086 return true;
00087 }
00088
00089 void PeriodicBroadcast::start(){
00090 io_service_thread = new boost::thread(
00091 boost::bind(&PeriodicBroadcast::threadFunc, this) );
00092
00093 Timer::setInterval( timerinterval*1000 );
00094 Timer::start();
00095 }
00096
00097 void PeriodicBroadcast::stop(){
00098 io_service.stop();
00099 io_service_thread->join();
00100 delete io_service_thread;
00101 io_service_thread = NULL;
00102
00103 Timer::stop();
00104 }
00105
00106 void PeriodicBroadcast::publishService(string name, string info1, string info2, string info3){
00107 Service service(name, info1, info2, info3) ;
00108
00109 boost::mutex::scoped_lock lock( localServicesMutex );
00110 localServices.insert( std::make_pair(name, service) );
00111 }
00112
00113 void PeriodicBroadcast::revokeService(string name){
00114 boost::mutex::scoped_lock lock( localServicesMutex );
00115
00116 ServiceList::iterator i = localServices.find( name );
00117 if( i != localServices.end() ) localServices.erase( name );
00118 }
00119
00120 void PeriodicBroadcast::eventFunction(){
00121 sendLocalServices();
00122 updateRemoteServices();
00123 }
00124
00125 void PeriodicBroadcast::sendLocalServices(){
00126 boost::mutex::scoped_lock lock( localServicesMutex );
00127
00128 ServiceList::iterator i = localServices.begin();
00129 ServiceList::iterator iend = localServices.end();
00130
00131 for( ; i != iend; i++)
00132 server.sendservice( i->second );
00133 }
00134
00135 void PeriodicBroadcast::updateRemoteServices(){
00136
00137
00138
00139 {
00140 boost::mutex::scoped_lock lock( remoteServicesMutex );
00141 bool deleted;
00142
00143 do {
00144 deleted = false;
00145
00146 ServiceList::iterator i = remoteServices.begin();
00147 ServiceList::iterator iend = remoteServices.end();
00148
00149 for( ; i != iend; i++ ){
00150
00151 if( time(NULL) > (i->second.getLastseen() + servicetimeout) ){
00152 remoteServices.erase( i );
00153 deleted = true;
00154 break;
00155 }
00156 }
00157
00158 } while(deleted);
00159 }
00160
00161
00162
00163 {
00164 boost::mutex::scoped_lock lock( newRemoteServicesMutex );
00165 typedef std::pair<string,Service> mapitem;
00166
00167 BOOST_FOREACH( mapitem item, newRemoteServices ){
00168
00169 string name = item.first;
00170 Service service = item.second;
00171
00172 ServiceList::iterator i = remoteServices.find( name );
00173 if( i != remoteServices.end() ) {
00174
00175 i->second.setLastseen( service.getLastseen() );
00176 continue;
00177 }
00178
00179 {
00180
00181
00182 boost::mutex::scoped_lock lock2( remoteServicesMutex );
00183 remoteServices.insert( std::make_pair(name, service) );
00184 }
00185
00186 callback->onBootstrapServiceFound(name,
00187 service.getInfo1(), service.getInfo2(), service.getInfo3());
00188 }
00189
00190
00191 newRemoteServices.clear();
00192 }
00193 }
00194
00195 }}