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source: source/ariba/communication/BaseCommunication.cpp@ 9636

Last change on this file since 9636 was 9322, checked in by bless, 14 years ago
  • constructor now uses initializers
File size: 22.8 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 conditions and the following disclaimer.
17// 2. Redistributions in binary form must reproduce the above copyright
18// notice, this list of conditions and the following disclaimer in the
19// documentation and/or other materials provided with the distribution.
20//
21// THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
22// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR
25// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
28// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32//
33// The views and conclusions contained in the software and documentation
34// are those of the authors and should not be interpreted as representing
35// official policies, either expressed or implied, of the Institute of
36// Telematics.
37// [License]
38
39#include "BaseCommunication.h"
40
41#include "networkinfo/AddressDiscovery.h"
42#include "ariba/utility/types/PeerID.h"
43
44#ifdef UNDERLAY_OMNET
45 #include "ariba/communication/modules/transport/omnet/AribaOmnetModule.h"
46 #include "ariba/communication/modules/network/omnet/OmnetNetworkProtocol.h"
47 #include "ariba/utility/system/StartupWrapper.h"
48
49 using ariba::communication::AribaOmnetModule;
50 using ariba::communication::OmnetNetworkProtocol;
51 using ariba::utility::StartupWrapper;
52#endif
53
54namespace ariba {
55namespace communication {
56
57using ariba::utility::PeerID;
58
59use_logging_cpp(BaseCommunication);
60
61/// adds an endpoint to the list
62void BaseCommunication::add_endpoint( const address_v* endpoint ) {
63 if (endpoint==NULL) return;
64 BOOST_FOREACH( endpoint_reference& ref, remote_endpoints ) {
65 if (ref.endpoint->type_id() == endpoint->type_id() && *ref.endpoint == *endpoint) {
66 ref.count++;
67 return;
68 }
69 }
70 endpoint_reference ref;
71 ref.endpoint = endpoint->clone();
72 ref.count = 1;
73 remote_endpoints.push_back(ref);
74}
75
76/// removes an endpoint from the list
77void BaseCommunication::remove_endpoint( const address_v* endpoint ) {
78 if (endpoint==NULL) return;
79 for (vector<endpoint_reference>::iterator i = remote_endpoints.begin();
80 i != remote_endpoints.end(); i++) {
81 if ((*i->endpoint).type_id() == endpoint->type_id() && (*i->endpoint) == *endpoint) {
82 i->count--;
83 if (i->count==0) {
84 logging_info("No more links to " << i->endpoint->to_string() << ": terminating transports!");
85 transport->terminate(i->endpoint);
86 delete i->endpoint;
87 remote_endpoints.erase(i);
88 }
89 return;
90 }
91 }
92}
93
94
95BaseCommunication::BaseCommunication()
96 : currentSeqnum( 0 ),
97 transport( NULL ),
98 messageReceiver( NULL ),
99 started( false )
100{
101}
102
103
104BaseCommunication::~BaseCommunication(){
105}
106
107
108void BaseCommunication::start() {
109 logging_info( "Starting up ..." );
110 currentSeqnum = 0;
111
112 // set local peer id
113 localDescriptor.getPeerId() = PeerID::random();
114 logging_info( "Using PeerID: " << localDescriptor.getPeerId() );
115
116 // creating transports
117 logging_info( "Creating transports ..." );
118
119#ifdef UNDERLAY_OMNET
120 AribaOmnetModule* module = StartupWrapper::getCurrentModule();
121 module->setServerPort( listenport );
122
123 transport = module;
124 network = new OmnetNetworkProtocol( module );
125#else
126 transport = new transport_peer( localDescriptor.getEndpoints() );
127#endif
128
129 logging_info( "Searching for local locators ..." );
130 /**
131 * DONT DO THAT: if(localDescriptor.getEndpoints().to_string().length() == 0)
132 * since addresses are used to initialize transport addresses
133 */
134 AddressDiscovery::discover_endpoints( localDescriptor.getEndpoints() );
135 logging_info( "Done. Local endpoints = " << localDescriptor.toString() );
136
137 transport->register_listener( this );
138 transport->start();
139
140#ifndef UNDERLAY_OMNET
141 // bind to the network change detection
142 networkMonitor.registerNotification( this );
143#endif
144
145 // base comm startup done
146 started = true;
147 logging_info( "Started up." );
148}
149
150void BaseCommunication::stop() {
151 logging_info( "Stopping transports ..." );
152
153 transport->stop();
154 delete transport;
155 started = false;
156
157 logging_info( "Stopped." );
158}
159
160bool BaseCommunication::isStarted(){
161 return started;
162}
163
164/// Sets the endpoints
165void BaseCommunication::setEndpoints( string& _endpoints ) {
166 localDescriptor.getEndpoints().assign(_endpoints);
167 logging_info("Setting local end-points: "
168 << localDescriptor.getEndpoints().to_string());
169}
170
171const LinkID BaseCommunication::establishLink(
172 const EndpointDescriptor& descriptor,
173 const LinkID& link_id,
174 const QoSParameterSet& qos,
175 const SecurityParameterSet& sec) {
176
177 // copy link id
178 LinkID linkid = link_id;
179
180 // debug
181 logging_debug( "Request to establish link" );
182
183 // create link identifier
184 if (linkid.isUnspecified()) linkid = LinkID::create();
185
186 // create link descriptor
187 logging_debug( "Creating new descriptor entry with local link id=" << linkid.toString() );
188 LinkDescriptor* ld = new LinkDescriptor();
189 ld->localLink = linkid;
190 addLink( ld );
191
192 // send a message to request new link to remote
193 logging_debug( "Send messages with request to open link to " << descriptor.toString() );
194 AribaBaseMsg baseMsg( AribaBaseMsg::typeLinkRequest, linkid );
195 baseMsg.getLocalDescriptor() = localDescriptor;
196 baseMsg.getRemoteDescriptor().getPeerId() = descriptor.getPeerId();
197
198 // serialize and send message
199 send( &baseMsg, descriptor );
200
201 return linkid;
202}
203
204void BaseCommunication::dropLink(const LinkID link) {
205
206 logging_debug( "Starting to drop link " + link.toString() );
207
208 // see if we have the link
209 LinkDescriptor& ld = queryLocalLink( link );
210 if( ld.isUnspecified() ) {
211 logging_error( "Don't know the link you want to drop "+ link.toString() );
212 return;
213 }
214
215 // tell the registered listeners
216 BOOST_FOREACH( CommunicationEvents* i, eventListener ) {
217 i->onLinkDown( link, ld.localLocator, ld.remoteLocator );
218 }
219
220 // create message to drop the link
221 logging_debug( "Sending out link close request. for us, the link is closed now" );
222 AribaBaseMsg msg( AribaBaseMsg::typeLinkClose, ld.localLink, ld.remoteLink );
223
224 // send message to drop the link
225 send( &msg, ld );
226
227 // remove from map
228 removeLink(link);
229}
230
231seqnum_t BaseCommunication::sendMessage( const LinkID lid, const Message* message) {
232
233 logging_debug( "Sending out message to link " << lid.toString() );
234
235 // query local link info
236 LinkDescriptor& ld = queryLocalLink(lid);
237 if( ld.isUnspecified() ){
238 logging_error( "Don't know the link with id " << lid.toString() );
239 return -1;
240 }
241
242 // link not up-> error
243 if( !ld.up ) {
244 logging_error("Can not send on link " << lid.toString() << ": link not up");
245 return -1;
246 }
247
248 // create message
249 AribaBaseMsg msg( AribaBaseMsg::typeData, ld.localLink, ld.remoteLink );
250
251 // encapsulate the payload message
252 msg.encapsulate( const_cast<Message*>(message) );
253
254 // send message
255 send( &msg, ld );
256
257 // return sequence number
258 return ++currentSeqnum;
259}
260
261const EndpointDescriptor& BaseCommunication::getEndpointDescriptor(const LinkID link) const {
262 if( link.isUnspecified() ){
263 return localDescriptor;
264 } else {
265 LinkDescriptor& linkDesc = queryLocalLink(link);
266 if (linkDesc.isUnspecified()) return EndpointDescriptor::UNSPECIFIED();
267 return linkDesc.remoteEndpoint;
268 }
269}
270
271void BaseCommunication::registerEventListener(CommunicationEvents* _events){
272 if( eventListener.find( _events ) == eventListener.end() )
273 eventListener.insert( _events );
274}
275
276void BaseCommunication::unregisterEventListener(CommunicationEvents* _events){
277 EventListenerSet::iterator i = eventListener.find( _events );
278 if( i != eventListener.end() )
279 eventListener.erase( i );
280}
281
282SystemEventType TransportEvent("Transport");
283SystemEventType MessageDispatchEvent("MessageDispatchEvent", TransportEvent );
284
285class DispatchMsg {
286public:
287 DispatchMsg() : local(NULL), remote(NULL), message(NULL) {}
288 address_v* local;
289 address_v* remote;
290 Message* message;
291};
292
293/// called when a system event is emitted by system queue
294void BaseCommunication::handleSystemEvent(const SystemEvent& event) {
295
296 // dispatch received messages
297 if ( event.getType() == MessageDispatchEvent ){
298 logging_debug( "Forwarding message receiver" );
299 DispatchMsg* dmsg = event.getData<DispatchMsg>();
300 Message* msg = dmsg->message;
301 receiveMessage(msg, dmsg->local, dmsg->remote);
302 msg->dropPayload();
303 delete dmsg->local;
304 delete dmsg->remote;
305 delete msg;
306 delete dmsg;
307 }
308}
309
310/// called when a message is received from transport_peer
311void BaseCommunication::receive_message(transport_protocol* transport,
312 const address_vf local, const address_vf remote, const uint8_t* data,
313 size_t size) {
314
315// logging_debug( "Dispatching message" );
316
317 // convert data
318 Data data_( const_cast<uint8_t*>(data), size * 8 );
319 DispatchMsg* dmsg = new DispatchMsg();
320
321 Message* msg = new Message(data_);
322 dmsg->local = local->clone();
323 dmsg->remote = remote->clone();
324 dmsg->message = msg;
325
326 SystemQueue::instance().scheduleEvent(
327 SystemEvent( this, MessageDispatchEvent, dmsg )
328 );
329}
330
331/// handles a message from the underlay transport
332void BaseCommunication::receiveMessage(const Message* message,
333 const address_v* local, const address_v* remote ){
334
335 /// decapsulate message
336 AribaBaseMsg* msg = ((Message*)message)->decapsulate<AribaBaseMsg>();
337 logging_debug( "Receiving message of type " << msg->getTypeString() );
338
339 // handle message
340 switch (msg->getType()) {
341
342 // ---------------------------------------------------------------------
343 // data message
344 // ---------------------------------------------------------------------
345 case AribaBaseMsg::typeData: {
346 logging_debug( "Received data message, forwarding to overlay" );
347 if( messageReceiver != NULL ) {
348 messageReceiver->receiveMessage(
349 msg, msg->getRemoteLink(), NodeID::UNSPECIFIED
350 );
351 }
352 break;
353 }
354
355 // ---------------------------------------------------------------------
356 // handle link request from remote
357 // ---------------------------------------------------------------------
358 case AribaBaseMsg::typeLinkRequest: {
359 logging_debug( "Received link open request" );
360
361 /// not the correct peer id-> skip request
362 if (!msg->getRemoteDescriptor().getPeerId().isUnspecified()
363 && msg->getRemoteDescriptor().getPeerId() != localDescriptor.getPeerId()) {
364 logging_info("Received link request for "
365 << msg->getRemoteDescriptor().getPeerId().toString()
366 << "but i'm "
367 << localDescriptor.getPeerId()
368 << ": Ignoring!");
369 break;
370 }
371
372 /// only answer the first request
373 if (!queryRemoteLink(msg->getLocalLink()).isUnspecified()) {
374 logging_debug("Link request already received. Ignore!");
375 break;
376 }
377
378 /// create link ids
379 LinkID localLink = LinkID::create();
380 LinkID remoteLink = msg->getLocalLink();
381 logging_debug( "local=" << local->to_string()
382 << " remote=" << remote->to_string()
383 );
384
385 // check if link creation is allowed by ALL listeners
386 bool allowlink = true;
387 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
388 allowlink &= i->onLinkRequest( localLink, local, remote );
389 }
390
391 // not allowed-> warn
392 if( !allowlink ){
393 logging_warn( "Overlay denied creation of link" );
394 delete msg;
395 return;
396 }
397
398 // create descriptor
399 LinkDescriptor* ld = new LinkDescriptor();
400 ld->localLink = localLink;
401 ld->remoteLink = remoteLink;
402 ld->localLocator = local->clone();
403 ld->remoteLocator = remote->clone();
404 ld->remoteEndpoint = msg->getLocalDescriptor();
405 add_endpoint(ld->remoteLocator);
406
407 // add layer 1-3 addresses
408 ld->remoteEndpoint.getEndpoints().add(
409 ld->remoteLocator, endpoint_set::Layer1_3 | endpoint_set::NoLoopback);
410 localDescriptor.getEndpoints().add(
411 local, endpoint_set::Layer1_3 | endpoint_set::NoLoopback);
412
413 // link is now up-> add it
414 ld->up = true;
415 addLink(ld);
416
417 // link is up!
418 logging_debug( "Link (initiated from remote) is up with "
419 << "local(id=" << ld->localLink.toString() << ","
420 << "locator=" << ld->localLocator->to_string() << ") "
421 << "remote(id=" << ld->remoteLink.toString() << ", "
422 << "locator=" << ld->remoteLocator->to_string() << ")"
423 );
424
425 // sending link request reply
426 logging_debug( "Sending link request reply with ids "
427 << "local=" << localLink.toString() << ", "
428 << "remote=" << remoteLink.toString() );
429 AribaBaseMsg reply( AribaBaseMsg::typeLinkReply, localLink, remoteLink );
430 reply.getLocalDescriptor() = localDescriptor;
431 reply.getRemoteDescriptor() = ld->remoteEndpoint;
432
433 send( &reply, *ld );
434
435 // inform listeners about new open link
436 BOOST_FOREACH( CommunicationEvents* i, eventListener ) {
437 i->onLinkUp( localLink, ld->localLocator, ld->remoteLocator);
438 }
439
440 // done
441 break;
442 }
443
444 // ---------------------------------------------------------------------
445 // handle link request reply
446 // ---------------------------------------------------------------------
447 case AribaBaseMsg::typeLinkReply: {
448 logging_debug( "Received link open reply for a link we initiated" );
449
450 // this is a reply to a link open request, so we have already
451 // a link mapping and can now set the remote link to valid
452 LinkDescriptor& ld = queryLocalLink( msg->getRemoteLink() );
453
454 // no link found-> warn!
455 if (ld.isUnspecified()) {
456 logging_warn("Failed to find local link " << msg->getRemoteLink().toString());
457 delete msg;
458 return;
459 }
460
461 // set remote locator and link id
462 ld.remoteLink = msg->getLocalLink();
463 ld.remoteLocator = remote->clone();
464 ld.remoteEndpoint.getEndpoints().add(
465 msg->getLocalDescriptor().getEndpoints(),
466 endpoint_set::Layer1_4
467 );
468
469 localDescriptor.getEndpoints().add(
470 msg->getRemoteDescriptor().getEndpoints(),
471 endpoint_set::Layer1_3
472 );
473 ld.up = true;
474 add_endpoint(ld.remoteLocator);
475
476 logging_debug( "Link is now up with local id "
477 << ld.localLink.toString() << " and remote id "
478 << ld.remoteLink.toString() );
479
480
481 // inform lisneters about link up event
482 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
483 i->onLinkUp( ld.localLink, ld.localLocator, ld.remoteLocator );
484 }
485
486 // done
487 break;
488 }
489
490 // ---------------------------------------------------------------------
491 // handle link close requests
492 // ---------------------------------------------------------------------
493 case AribaBaseMsg::typeLinkClose: {
494 // get remote link
495 const LinkID& localLink = msg->getRemoteLink();
496 logging_debug( "Received link close request for link " << localLink.toString() );
497
498 // searching for link, not found-> warn
499 LinkDescriptor& linkDesc = queryLocalLink( localLink );
500 if (linkDesc.isUnspecified()) {
501 logging_warn("Failed to find local link " << localLink.toString());
502 delete msg;
503 return;
504 }
505
506 // inform listeners
507 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
508 i->onLinkDown( linkDesc.localLink,
509 linkDesc.localLocator, linkDesc.remoteLocator );
510 }
511
512 // remove the link descriptor
513 removeLink( localLink );
514
515 // done
516 break;
517 }
518
519 // ---------------------------------------------------------------------
520 // handle link locator changes
521 // ---------------------------------------------------------------------
522 case AribaBaseMsg::typeLinkUpdate: {
523 const LinkID& localLink = msg->getRemoteLink();
524 logging_debug( "Received link update for link "
525 << localLink.toString() );
526
527 // find the link description
528 LinkDescriptor& linkDesc = queryLocalLink( localLink );
529 if (linkDesc.isUnspecified()) {
530 logging_warn("Failed to update local link "
531 << localLink.toString());
532 delete msg;
533 return;
534 }
535
536 // update the remote locator
537 const address_v* oldremote = linkDesc.remoteLocator;
538 linkDesc.remoteLocator = remote->clone();
539
540 // inform the listeners (local link has _not_ changed!)
541 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
542 i->onLinkChanged(
543 linkDesc.localLink, // linkid
544 linkDesc.localLocator, // old local
545 linkDesc.localLocator, // new local
546 oldremote, // old remote
547 linkDesc.remoteLocator // new remote
548 );
549 }
550
551 // done
552 break;
553 }
554 }
555
556 delete msg;
557}
558
559/// add a newly allocated link to the set of links
560void BaseCommunication::addLink( LinkDescriptor* link ) {
561 linkSet.push_back( link );
562}
563
564/// remove a link from set
565void BaseCommunication::removeLink( const LinkID& localLink ) {
566 for(LinkSet::iterator i=linkSet.begin(); i != linkSet.end(); i++){
567 if( (*i)->localLink != localLink) continue;
568 remove_endpoint((*i)->remoteLocator);
569 delete *i;
570 linkSet.erase( i );
571 break;
572 }
573}
574
575/// query a descriptor by local link id
576BaseCommunication::LinkDescriptor& BaseCommunication::queryLocalLink( const LinkID& link ) const {
577 for (size_t i=0; i<linkSet.size();i++)
578 if (linkSet[i]->localLink == link) return (LinkDescriptor&)*linkSet[i];
579
580 return LinkDescriptor::UNSPECIFIED();
581}
582
583/// query a descriptor by remote link id
584BaseCommunication::LinkDescriptor& BaseCommunication::queryRemoteLink( const LinkID& link ) const {
585 for (size_t i=0; i<linkSet.size();i++)
586 if (linkSet[i]->remoteLink == link) return (LinkDescriptor&)*linkSet[i];
587
588 return LinkDescriptor::UNSPECIFIED();
589}
590
591LinkIDs BaseCommunication::getLocalLinks( const address_v* addr ) const {
592 LinkIDs ids;
593 for (size_t i=0; i<linkSet.size(); i++){
594 if( addr == NULL ){
595 ids.push_back( linkSet[i]->localLink );
596 } else {
597 if ( *linkSet[i]->remoteLocator == *addr )
598 ids.push_back( linkSet[i]->localLink );
599 }
600 }
601 return ids;
602}
603
604void BaseCommunication::onNetworkChange(const NetworkChangeInterface::NetworkChangeInfo& info){
605
606#ifdef UNDERLAY_OMNET
607
608 // we have no mobility support for simulations
609 return
610
611#endif // UNDERLAY_OMNET
612
613/*- disabled!
614
615 // we only care about address changes, not about interface changes
616 // as address changes are triggered by interface changes, we are safe here
617 if( info.type != NetworkChangeInterface::EventTypeAddressNew &&
618 info.type != NetworkChangeInterface::EventTypeAddressDelete ) return;
619
620 logging_info( "base communication is handling network address changes" );
621
622 // get all now available addresses
623 NetworkInformation networkInformation;
624 AddressInformation addressInformation;
625
626 NetworkInterfaceList interfaces = networkInformation.getInterfaces();
627 AddressList addresses;
628
629 for( NetworkInterfaceList::iterator i = interfaces.begin(); i != interfaces.end(); i++ ){
630 AddressList newaddr = addressInformation.getAddresses(*i);
631 addresses.insert( addresses.end(), newaddr.begin(), newaddr.end() );
632 }
633
634 //
635 // get current locators for the local endpoint
636 // TODO: this code is dublicate of the ctor code!!! cleanup!
637 //
638
639 NetworkProtocol::NetworkLocatorSet locators = network->getAddresses();
640 NetworkProtocol::NetworkLocatorSet::iterator i = locators.begin();
641 NetworkProtocol::NetworkLocatorSet::iterator iend = locators.end();
642
643 //
644 // remember the old local endpoint, in case it changes
645 //
646
647 EndpointDescriptor oldLocalDescriptor( localDescriptor );
648
649 //
650 // look for local locators that we can use in communication
651 //
652 // choose the first locator that is not localhost
653 //
654
655 bool foundLocator = false;
656 bool changedLocator = false;
657
658 for( ; i != iend; i++){
659 logging_debug( "local locator found " << (*i)->toString() );
660 IPv4Locator* ipv4locator = dynamic_cast<IPv4Locator*>(*i);
661
662 if( *ipv4locator != IPv4Locator::LOCALHOST &&
663 *ipv4locator != IPv4Locator::ANY &&
664 *ipv4locator != IPv4Locator::BROADCAST ){
665
666 ipv4locator->setPort( listenport );
667 changedLocator = *localDescriptor.locator != *ipv4locator;
668 localDescriptor.locator = ipv4locator;
669 logging_info( "binding to addr = " << ipv4locator->toString() );
670 foundLocator = true;
671 break;
672 }
673 } // for( ; i != iend; i++)
674
675 //
676 // if we found no locator, bind to localhost
677 //
678
679 if( !foundLocator ){
680 changedLocator = *localDescriptor.locator != IPv4Locator::LOCALHOST;
681 localDescriptor.locator = new IPv4Locator( IPv4Locator::LOCALHOST );
682 ((IPv4Locator*)(localDescriptor.locator))->setPort( listenport );
683 logging_info( "found no good local lcoator, binding to addr = " <<
684 localDescriptor.locator->toString() );
685 }
686
687 //
688 // if we have connections that have no more longer endpoints
689 // close these. they will be automatically built up again.
690 // also update the local locator in the linkset mapping
691 //
692
693 if( changedLocator ){
694
695 logging_debug( "local endp locator has changed to " << localDescriptor.toString() <<
696 ", resettings connections that end at old locator " <<
697 oldLocalDescriptor.toString());
698
699 LinkSet::iterator i = linkSet.begin();
700 LinkSet::iterator iend = linkSet.end();
701
702 for( ; i != iend; i++ ){
703
704 logging_debug( "checking connection for locator change: " <<
705 " local " << (*i).localLocator->toString() <<
706 " old " << oldLocalDescriptor.locator->toString() );
707
708 if( *((*i).localLocator) == *(oldLocalDescriptor.locator) ){
709
710 logging_debug("terminating connection to " << (*i).remoteLocator->toString() );
711 transport->terminate( oldLocalDescriptor.locator, (*i).remoteLocator );
712
713 (*i).localLocator = localDescriptor.locator;
714 }
715 } // for( ; i != iend; i++ )
716
717 // wait 500ms to give the sockets time to shut down
718 usleep( 500000 );
719
720 } else {
721
722 logging_debug( "locator has not changed, not resetting connections" );
723
724 }
725
726 //
727 // handle the connections that have no longer any
728 // valid locator. send update messages with the new
729 // locator, so the remote node updates its locator/link mapping
730 //
731
732 LinkSet::iterator iAffected = linkSet.begin();
733 LinkSet::iterator endAffected = linkSet.end();
734
735 for( ; iAffected != endAffected; iAffected++ ){
736 LinkDescriptor descr = *iAffected;
737 logging_debug( "sending out link locator update to " << descr.remoteLocator->toString() );
738
739 AribaBaseMsg updateMsg( descr.remoteLocator,
740 AribaBaseMsg::LINK_STATE_UPDATE,
741 descr.localLink, descr.remoteLink );
742
743 transport->sendMessage( &updateMsg );
744 }
745*/
746}
747
748/// sends a message to all end-points in the end-point descriptor
749void BaseCommunication::send(Message* message, const EndpointDescriptor& endpoint) {
750 Data data = data_serialize( message, DEFAULT_V );
751 transport->send( endpoint.getEndpoints(), data.getBuffer(), data.getLength() / 8);
752 data.release();
753}
754
755/// sends a message to the remote locator inside the link descriptor
756void BaseCommunication::send(Message* message, const LinkDescriptor& desc) {
757 if (desc.remoteLocator==NULL) return;
758 Data data = data_serialize( message, DEFAULT_V );
759 transport->send( desc.remoteLocator, data.getBuffer(), data.getLength() / 8);
760 data.release();
761}
762
763}} // namespace ariba, communication
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