source: source/ariba/communication/BaseCommunication.cpp@ 3694

Last change on this file since 3694 was 3690, checked in by mies, 16 years ago

Merged 20090512-mies-connectors changes r3472:r3689 into trunk.
File size: 21.5 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 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#ifdef UNDERLAY_OMNET
42 #include "ariba/communication/modules/transport/omnet/AribaOmnetModule.h"
43 #include "ariba/communication/modules/network/omnet/OmnetNetworkProtocol.h"
44 #include "ariba/utility/system/StartupWrapper.h"
45
46 using ariba::communication::AribaOmnetModule;
47 using ariba::communication::OmnetNetworkProtocol;
48 using ariba::utility::StartupWrapper;
49#endif
50
51namespace ariba {
52namespace communication {
53
54use_logging_cpp(BaseCommunication);
55const BaseCommunication::LinkDescriptor BaseCommunication::LinkDescriptor::UNSPECIFIED;
56
57BaseCommunication::BaseCommunication()
58 : messageReceiver(NULL), network(NULL), transport(NULL){
59}
60
61BaseCommunication::~BaseCommunication(){
62}
63
64void BaseCommunication::start(const NetworkLocator* _locallocator, const uint16_t _listenport){
65
66 currentSeqnum = 0;
67 listenport = _listenport;
68
69 logging_info( "starting up base communication and creating transports ..." );
70 logging_info( "using port " << listenport );
71
72#ifdef UNDERLAY_OMNET
73 AribaOmnetModule* module = StartupWrapper::getCurrentModule();
74 module->setServerPort( listenport );
75
76 transport = module;
77 network = new OmnetNetworkProtocol( module );
78#else
79 transport = new TCPTransport( listenport );
80 network = new IPv4NetworkProtocol();
81#endif
82
83 logging_debug( "searching for local locators ..." );
84
85 NetworkProtocol::NetworkLocatorSet locators = network->getAddresses();
86 NetworkProtocol::NetworkLocatorSet::iterator i = locators.begin();
87 NetworkProtocol::NetworkLocatorSet::iterator iend = locators.end();
88
89 //
90 // choose the first locator that is not localhost
91 //
92
93 bool foundLocator = false;
94
95 for( ; i != iend; i++){
96 logging_debug( "local locator found " << (*i)->toString() );
97 IPv4Locator* ipv4locator = dynamic_cast<IPv4Locator*>(*i);
98
99 // TODO: which locators are find to bind to?
100 // localhost is not too bad, works when testing locally
101 // with several instances. the manual override currently
102 // enables to use an arbitrary address, guess this is fine.
103 // so the manual override also can use ANY, LOCALHOST, BROADCAST
104
105 if( *ipv4locator != IPv4Locator::LOCALHOST &&
106 *ipv4locator != IPv4Locator::ANY &&
107 *ipv4locator != IPv4Locator::BROADCAST ){
108
109 ipv4locator->setPort(listenport);
110 localDescriptor.locator = ipv4locator;
111 localDescriptor.isUnspec = false;
112 logging_info( "binding to addr = " << ipv4locator->toString() );
113 foundLocator = true;
114 break;
115 }
116 } // for( ; i != iend; i++)
117
118
119 if( _locallocator != NULL ) {
120 if( localDescriptor.locator != NULL) delete localDescriptor.locator;
121 localDescriptor.locator = new IPv4Locator( IPv4Locator::fromString( _locallocator->toString()) );
122 localDescriptor.isUnspec = false;
123 logging_debug( "manual locator override, using locator=" <<
124 localDescriptor.locator->toString() );
125 foundLocator = true;
126 }
127
128 // if we found no local locator, exit using logging fatal
129 if( !foundLocator )
130 logging_fatal( "did not find a useable local locator!" );
131
132 transport->addMessageReceiver( this );
133 transport->start();
134
135#ifndef UNDERLAY_OMNET
136 //
137 // bind to the network change detection
138 //
139
140 networkMonitor.registerNotification( this );
141#endif
142
143 //
144 // base comm startup done
145 //
146
147 logging_info( "base communication started up" );
148}
149
150void BaseCommunication::stop() {
151
152 logging_info( "stopping base communication and transport ..." );
153
154 transport->stop();
155 delete transport;
156 delete network;
157
158 logging_info( "base communication stopped" );
159}
160
161const LinkID BaseCommunication::establishLink(
162 const EndpointDescriptor& descriptor,
163 const LinkID& link_id,
164 const QoSParameterSet& qos,
165 const SecurityParameterSet& sec) {
166
167 // copy link id
168 LinkID linkid = link_id;
169
170 // debug
171 logging_debug( "request to establish link" );
172
173 //
174 // just use the first locator in the endp descriptors
175 //
176 if( descriptor.locator == NULL ){
177 logging_error( "invalid destination endpoint" );
178 return LinkID::UNSPECIFIED;
179 }
180
181 if( localDescriptor.locator == NULL ){
182 logging_error( "invalid local endpoint" );
183 return LinkID::UNSPECIFIED;
184 }
185
186 const NetworkLocator* remote = descriptor.locator;
187 const NetworkLocator* local = localDescriptor.locator;
188
189 // create link identifier and link descriptor
190 if (linkid.isUnspecified()) linkid = LinkID::create();
191 logging_debug( "creating new local descriptor entry with local link id " << linkid.toString() );
192 LinkDescriptor linkDescriptor( linkid, local, LinkID::UNSPECIFIED, remote, descriptor, false );
193 addLink( linkDescriptor );
194
195 //
196 // create a base msg with our link id and
197 // a request to open a link on the other side
198 //
199
200 logging_debug( "sending out base messages with request to open link to " << remote->toString() );
201 AribaBaseMsg baseMsg( remote, AribaBaseMsg::LINK_STATE_OPEN_REQUEST, linkid,
202 LinkID::UNSPECIFIED );
203 transport->sendMessage(&baseMsg);
204
205 return linkid;
206}
207
208void BaseCommunication::dropLink(const LinkID link) {
209
210 logging_debug( "starting to drop link " + link.toString() );
211
212 // see if we have the link
213 LinkDescriptor& descriptor = queryLocalLink( link );
214 if( descriptor.isUnspecified() ){
215 logging_error( "don't know the link you want to drop" );
216 return;
217 }
218
219 // warn if this link has some queued messages attached
220 if( descriptor.waitingmsg.size() > 0 ){
221 logging_warn( "dropping link " << link.toString() <<
222 " that has " << descriptor.waitingmsg.size() << " waiting messages" );
223 }
224
225 // create message to drop the link
226 logging_debug( "sending out link close request. for us, the link is closed now" );
227 AribaBaseMsg msg(
228 descriptor.remoteLocator,
229 AribaBaseMsg::LINK_STATE_CLOSE_REQUEST,
230 descriptor.localLink,
231 descriptor.remoteLink
232 );
233
234 // send message to drop the link
235 transport->sendMessage( &msg );
236
237 // tell the registered listeners
238 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
239 i->onLinkDown( link, descriptor.localLocator, descriptor.remoteLocator );
240 }
241
242 // remove from map
243 removeLink(link);
244}
245
246seqnum_t BaseCommunication::sendMessage( const LinkID lid, const Message* message) {
247
248 logging_debug( "sending out message to link " << lid.toString() );
249
250 // query local link info
251 LinkDescriptor& linkDesc = queryLocalLink(lid);
252 if( linkDesc.isUnspecified() ){
253 logging_error( "don't know the link with id " << lid.toString() );
254 return -1;
255 }
256
257 // create message
258 AribaBaseMsg msg(
259 linkDesc.remoteLocator,
260 AribaBaseMsg::LINK_STATE_DATA,
261 linkDesc.localLink,
262 linkDesc.remoteLink
263 );
264
265 // encapsulate the payload message
266 msg.encapsulate( const_cast<Message*>(message) );
267
268 if( linkDesc.linkup ){
269
270 // send message
271 transport->sendMessage( &msg );
272 return ++currentSeqnum;
273
274 } else {
275
276 // queue message
277 logging_info( "link " << lid.toString() << " is not up yet, queueing message" );
278 linkDesc.waitingmsg.push_back( new Message(msg) ); // TODO ooooo
279
280 return 0;
281
282 } // if( linkDesc.linkup )
283}
284
285const EndpointDescriptor& BaseCommunication::getEndpointDescriptor(const LinkID link) const {
286
287 if( link == LinkID::UNSPECIFIED){
288 return localDescriptor;
289 } else {
290 LinkDescriptor& linkDesc = queryLocalLink(link);
291 if (linkDesc.isUnspecified()) return EndpointDescriptor::UNSPECIFIED;
292 return linkDesc.remoteEndpoint;
293 }
294}
295
296void BaseCommunication::registerMessageReceiver(MessageReceiver* _receiver) {
297 messageReceiver = _receiver;
298}
299
300void BaseCommunication::unregisterMessageReceiver(MessageReceiver* _receiver) {
301 messageReceiver = NULL;
302}
303
304void BaseCommunication::registerEventListener(CommunicationEvents* _events){
305
306 if( eventListener.find( _events ) == eventListener.end() )
307 eventListener.insert( _events );
308}
309
310void BaseCommunication::unregisterEventListener(CommunicationEvents* _events){
311
312 EventListenerSet::iterator i = eventListener.find( _events );
313 if( i != eventListener.end() )
314 eventListener.erase( i );
315}
316
317
318bool BaseCommunication::receiveMessage(const Message* message, const LinkID& link, const NodeID& node){
319
320 //
321 // these messages arrive from the Transport module
322 // and are incoming network messages. Unpack the
323 // AribaBaseMsg and handle control packets,
324 // deliver data packets to the overlay
325 //
326
327 AribaBaseMsg* spovmsg = ((Message*)message)->decapsulate<AribaBaseMsg>();
328 logging_debug( "receiving base comm message of type " << spovmsg->getTypeString() );
329
330 //
331 // deliver data to the overlays. we just give the
332 // inner packet to every registered overlay ...
333 //
334
335 if( spovmsg->getType() == AribaBaseMsg::LINK_STATE_DATA ){
336
337 logging_debug( "received data message, forwarding to overlay" );
338
339 //
340 // put the linkid as address into the message
341 // and sent it to the receiver
342 //
343
344 if( messageReceiver != NULL ) {
345 messageReceiver->receiveMessage(
346 spovmsg,
347 spovmsg->getRemoteLink(),
348 NodeID::UNSPECIFIED
349 );
350 }
351
352 } // LINK_STATE_DATA
353
354 //
355 // handle link open requests
356 //
357
358 else if( spovmsg->getType() == AribaBaseMsg::LINK_STATE_OPEN_REQUEST ){
359
360 logging_debug( "received link open request" );
361
362 //
363 // create a link context
364 //
365
366 // in an incoming packet the localLink is from
367 // the sender perspective local and from our
368 // perspective remote
369
370 logging_debug( "creating local link" );
371
372 LinkID localLink = LinkID::create();
373 LinkID remoteLink = spovmsg->getLocalLink();
374
375
376 const NetworkLocator* localLocator = dynamic_cast<const NetworkLocator*>(localDescriptor.locator);
377 const NetworkLocator* remoteLocator = dynamic_cast<const NetworkLocator*>(message->getSourceAddress());
378
379 logging_debug( "localLocator=" << localLocator->toString()
380 << " remoteLocator=" << remoteLocator->toString());
381
382 // ask the registered listeners if this link
383 // creation is fine. we will only allow the
384 // link if all of them agree
385
386 bool allowlink = true;
387 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
388 allowlink &= i->onLinkRequest( localLink, localLocator, remoteLocator );
389 }
390
391 if( !allowlink ){
392 logging_warn( "overlay denied creation of link" );
393 return true;
394 }
395
396 //
397 // create and save the descriptor for the link
398 //
399
400 LinkDescriptor linkDescriptor(localLink, localLocator, remoteLink,
401 remoteLocator, EndpointDescriptor(remoteLocator), true);
402
403 logging_debug( "saving new link descriptor with " <<
404 "[local link " << localLink.toString() << "] " <<
405 "[local locator " << localLocator->toString() << "] " <<
406 "[remote link " << remoteLink.toString() << "] " <<
407 "[remote locator " << remoteLocator->toString() << "]" <<
408 "[link up true]" );
409
410 addLink( linkDescriptor );
411
412 //
413 // send out a link reply
414 //
415
416 logging_debug( "sending back link open reply for " <<
417 "[local link " << localLink.toString() << "] " <<
418 "[remote link " << remoteLink.toString() << "]" );
419
420 AribaBaseMsg reply(remoteLocator,
421 AribaBaseMsg::LINK_STATE_OPEN_REPLY,
422 localLink,
423 remoteLink);
424
425 transport->sendMessage( &reply );
426
427 //
428 // the link is now open
429 //
430
431 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
432 i->onLinkUp( localLink, localLocator, remoteLocator );
433 }
434
435 } // LINK_STATE_OPEN_REQUEST
436
437 //
438 // handle link open replies
439 //
440
441 else if( spovmsg->getType() == AribaBaseMsg::LINK_STATE_OPEN_REPLY ){
442
443 logging_debug( "received link open reply for a link we initiated" );
444
445 // this is a reply to a link open request, so we have already
446 // a link mapping and can now set the remote link to valid
447 LinkDescriptor& linkDesc = queryLocalLink( spovmsg->getRemoteLink() );
448
449 if (linkDesc.isUnspecified()) {
450 logging_warn("Failed to find local link " << spovmsg->getRemoteLink().toString());
451 return false;
452 }
453
454 linkDesc.remoteLink = spovmsg->getLocalLink();
455 linkDesc.linkup = true;
456
457 logging_debug( "the link is now up with local link id " << spovmsg->getRemoteLink().toString() );
458
459 // notify the baseoverlay that the link is up, so
460 // it can exchange nodeids over this link. then we
461 // can send the queued messages, as both nodes have
462 // to know their nodeids first
463
464 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
465 i->onLinkUp( linkDesc.localLink, linkDesc.localLocator, linkDesc.remoteLocator );
466 }
467
468 if( linkDesc.waitingmsg.size() > 0 ){
469 logging_info( "sending out queued messages on link " << linkDesc.localLink.toString() );
470
471 BOOST_FOREACH( Message* msg, linkDesc.waitingmsg ){
472 sendMessage( linkDesc.localLink, msg );
473 delete msg;
474 }
475
476 linkDesc.waitingmsg.clear();
477 }
478
479 } // LINK_STATE_OPEN_REPLY
480
481 //
482 // handle link close requests
483 //
484
485 else if( spovmsg->getType() == AribaBaseMsg::LINK_STATE_CLOSE_REQUEST ){
486
487 const LinkID& localLink = spovmsg->getRemoteLink();
488 logging_debug( "received link close request for link " << localLink.toString() );
489
490 //
491 // the link is closed immediately, we
492 // don't need to send out a reply, so we
493 // delete the mapping and inform
494 //
495
496 LinkDescriptor& linkDesc = queryLocalLink( localLink );
497 if (linkDesc.isUnspecified()) {
498 logging_warn("Failed to find local link " << localLink.toString());
499 return false;
500 }
501
502 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
503 i->onLinkDown( linkDesc.localLink, linkDesc.localLocator, linkDesc.remoteLocator );
504 }
505
506 //
507 // delete all pending messages for the link that has been closed
508 //
509
510 BOOST_FOREACH( Message* msg, linkDesc.waitingmsg ){
511 delete msg;
512 }
513
514 linkDesc.waitingmsg.clear();
515
516 //
517 // remove the link descriptor
518 //
519
520 removeLink( localLink );
521
522 } // LINK_STATE_CLOSE_REQUEST
523
524 //
525 // handle locator updates
526 //
527
528 else if( spovmsg->getType() == AribaBaseMsg::LINK_STATE_UPDATE ){
529
530 const LinkID& localLink = spovmsg->getRemoteLink();
531 logging_debug( "received link update for link " << localLink.toString() );
532
533 //
534 // find the link description
535 //
536
537 LinkDescriptor& linkDesc = queryLocalLink( localLink );
538 if (linkDesc.isUnspecified()) {
539 logging_warn("Failed to update local link " << localLink.toString());
540 return false;
541 }
542
543 //
544 // update the remote locator
545 //
546
547 const NetworkLocator* oldremote = linkDesc.remoteLocator;
548 linkDesc.remoteLocator = dynamic_cast<const NetworkLocator*>(message->getSourceAddress());
549
550 //
551 // inform the listeners (local link has _not_ changed!)
552 //
553
554 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
555 i->onLinkChanged(
556 linkDesc.localLink, // linkid
557 linkDesc.localLocator, // old local
558 linkDesc.localLocator, // new local
559 oldremote, // old remote
560 linkDesc.remoteLocator // new remote
561 );
562 }
563
564 } // LINK_STATE_UPDATE
565
566 return true;
567}
568
569void BaseCommunication::addLink( const LinkDescriptor& link ) {
570 linkSet.push_back( link );
571}
572
573void BaseCommunication::removeLink( const LinkID& localLink ) {
574
575 LinkSet::iterator i = linkSet.begin();
576 LinkSet::iterator iend = linkSet.end();
577
578 for( ; i != iend; i++){
579 if( (*i).localLink != localLink) continue;
580
581 BOOST_FOREACH( Message* msg, i->waitingmsg ){
582 delete msg;
583 }
584
585 i->waitingmsg.clear();
586 linkSet.erase( i );
587
588 break;
589 }
590}
591
592BaseCommunication::LinkDescriptor& BaseCommunication::queryLocalLink( const LinkID& link ) const {
593 for (int i=0; i<linkSet.size();i++)
594 if (linkSet[i].localLink == link) return (LinkDescriptor&)linkSet[i];
595 return (LinkDescriptor&)LinkDescriptor::UNSPECIFIED;
596}
597
598BaseCommunication::LinkDescriptor& BaseCommunication::queryRemoteLink( const LinkID& link ) const {
599 for (int i=0; i<linkSet.size();i++)
600 if (linkSet[i].remoteLink == link) return (LinkDescriptor&)linkSet[i];
601 return (LinkDescriptor&)LinkDescriptor::UNSPECIFIED;
602}
603
604LinkIDs BaseCommunication::getLocalLinks( const EndpointDescriptor& ep ) const {
605 LinkIDs ids;
606
607 for (int i=0; i<linkSet.size(); i++){
608 if( ep == EndpointDescriptor::UNSPECIFIED ){
609 ids.push_back( linkSet[i].localLink );
610 } else {
611 if ( linkSet[i].remoteLocator == ep.locator )
612 ids.push_back( linkSet[i].localLink );
613 }
614 }
615
616 return ids;
617}
618
619void BaseCommunication::onNetworkChange(const NetworkChangeInterface::NetworkChangeInfo& info){
620
621#ifdef UNDERLAY_OMNET
622
623 // we have no mobility support for simulations
624 return
625
626#endif // UNDERLAY_OMNET
627
628 //
629 // we only care about address changes, not about interface changes
630 // as address changes are triggered by interface changes, we are safe here
631 //
632
633 if( info.type != NetworkChangeInterface::EventTypeAddressNew &&
634 info.type != NetworkChangeInterface::EventTypeAddressDelete ) return;
635
636 logging_info( "base communication is handling network address changes" );
637
638 //
639 // get all now available addresses
640 //
641
642 NetworkInformation networkInformation;
643 AddressInformation addressInformation;
644
645 NetworkInterfaceList interfaces = networkInformation.getInterfaces();
646 AddressList addresses;
647
648 for( NetworkInterfaceList::iterator i = interfaces.begin(); i != interfaces.end(); i++ ){
649 AddressList newaddr = addressInformation.getAddresses(*i);
650 addresses.insert( addresses.end(), newaddr.begin(), newaddr.end() );
651 }
652
653 //
654 // get current locators for the local endpoint
655 // TODO: this code is dublicate of the ctor code!!! cleanup!
656 //
657
658 NetworkProtocol::NetworkLocatorSet locators = network->getAddresses();
659 NetworkProtocol::NetworkLocatorSet::iterator i = locators.begin();
660 NetworkProtocol::NetworkLocatorSet::iterator iend = locators.end();
661
662 //
663 // remember the old local endpoint, in case it changes
664 //
665
666 EndpointDescriptor oldLocalDescriptor( localDescriptor );
667
668 //
669 // look for local locators that we can use in communication
670 //
671 // choose the first locator that is not localhost
672 //
673
674 bool foundLocator = false;
675 bool changedLocator = false;
676
677 for( ; i != iend; i++){
678 logging_debug( "local locator found " << (*i)->toString() );
679 IPv4Locator* ipv4locator = dynamic_cast<IPv4Locator*>(*i);
680
681 if( *ipv4locator != IPv4Locator::LOCALHOST &&
682 *ipv4locator != IPv4Locator::ANY &&
683 *ipv4locator != IPv4Locator::BROADCAST ){
684
685 ipv4locator->setPort( listenport );
686 changedLocator = *localDescriptor.locator != *ipv4locator;
687 localDescriptor.locator = ipv4locator;
688 logging_info( "binding to addr = " << ipv4locator->toString() );
689 foundLocator = true;
690 break;
691 }
692 } // for( ; i != iend; i++)
693
694 //
695 // if we found no locator, bind to localhost
696 //
697
698 if( !foundLocator ){
699 changedLocator = *localDescriptor.locator != IPv4Locator::LOCALHOST;
700 localDescriptor.locator = new IPv4Locator( IPv4Locator::LOCALHOST );
701 ((IPv4Locator*)(localDescriptor.locator))->setPort( listenport );
702 logging_info( "found no good local lcoator, binding to addr = " <<
703 localDescriptor.locator->toString() );
704 }
705
706 //
707 // if we have connections that have no more longer endpoints
708 // close these. they will be automatically built up again.
709 // also update the local locator in the linkset mapping
710 //
711
712 if( changedLocator ){
713
714 logging_debug( "local endp locator has changed to " << localDescriptor.toString() <<
715 ", resettings connections that end at old locator " <<
716 oldLocalDescriptor.toString());
717
718 LinkSet::iterator i = linkSet.begin();
719 LinkSet::iterator iend = linkSet.end();
720
721 for( ; i != iend; i++ ){
722
723 logging_debug( "checking connection for locator change: " <<
724 " local " << (*i).localLocator->toString() <<
725 " old " << oldLocalDescriptor.locator->toString() );
726
727 if( *((*i).localLocator) == *(oldLocalDescriptor.locator) ){
728
729 logging_debug("terminating connection to " << (*i).remoteLocator->toString() );
730 transport->terminate( oldLocalDescriptor.locator, (*i).remoteLocator );
731
732 (*i).localLocator = localDescriptor.locator;
733 }
734 } // for( ; i != iend; i++ )
735
736 // wait 500ms to give the sockets time to shut down
737 usleep( 500000 );
738
739 } else {
740
741 logging_debug( "locator has not changed, not resetting connections" );
742
743 }
744
745 //
746 // handle the connections that have no longer any
747 // valid locator. send update messages with the new
748 // locator, so the remote node updates its locator/link mapping
749 //
750
751 LinkSet::iterator iAffected = linkSet.begin();
752 LinkSet::iterator endAffected = linkSet.end();
753
754 for( ; iAffected != endAffected; iAffected++ ){
755 LinkDescriptor descr = *iAffected;
756 logging_debug( "sending out link locator update to " << descr.remoteLocator->toString() );
757
758 AribaBaseMsg updateMsg( descr.remoteLocator,
759 AribaBaseMsg::LINK_STATE_UPDATE,
760 descr.localLink, descr.remoteLink );
761
762 transport->sendMessage( &updateMsg );
763 }
764}
765
766}} // namespace ariba, communication
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