source: source/ariba/communication/BaseCommunication.cpp@ 3038

Last change on this file since 3038 was 3037, checked in by Christoph Mayer, 16 years ago

-jede Menge fixes und Umstellungen
-angefangen ariba/interface los zu werden, erste dateien sind weg
File size: 21.2 KB
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1// [Licence]
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//
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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
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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// [Licence]
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 QoSParameterSet& qos,
164 const SecurityParameterSet& sec){
165
166 logging_debug( "request to establish link" );
167
168 //
169 // just use the first locator in the endp descriptors
170 //
171
172 if( descriptor.locator == NULL ){
173 logging_error( "invalid destination endpoint" );
174 return LinkID::UNSPECIFIED;
175 }
176
177 if( localDescriptor.locator == NULL ){
178 logging_error( "invalid local endpoint" );
179 return LinkID::UNSPECIFIED;
180 }
181
182 const NetworkLocator* remote = descriptor.locator;
183 const NetworkLocator* local = localDescriptor.locator;
184
185 //
186 // create link and link descriptor
187 //
188
189 LinkID linkid = LinkID::create();
190
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 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
460 i->onLinkUp( linkDesc.localLink, linkDesc.localLocator, linkDesc.remoteLocator );
461 }
462
463 if( linkDesc.waitingmsg.size() > 0 ){
464 logging_info( "sending out queued messages on link " << linkDesc.localLink.toString() );
465
466 BOOST_FOREACH( Message* msg, linkDesc.waitingmsg ){
467 sendMessage( linkDesc.localLink, msg );
468 delete msg;
469 }
470
471 linkDesc.waitingmsg.clear();
472 }
473
474 } // LINK_STATE_OPEN_REPLY
475
476 //
477 // handle link close requests
478 //
479
480 else if( spovmsg->getType() == AribaBaseMsg::LINK_STATE_CLOSE_REQUEST ){
481
482 const LinkID& localLink = spovmsg->getRemoteLink();
483 logging_debug( "received link close request for link " << localLink.toString() );
484
485 //
486 // the link is closed immediately, we
487 // don't need to send out a reply, so we
488 // delete the mapping and inform
489 //
490
491 LinkDescriptor& linkDesc = queryLocalLink( localLink );
492 if (linkDesc.isUnspecified()) {
493 logging_warn("Failed to find local link " << localLink.toString());
494 return false;
495 }
496
497 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
498 i->onLinkDown( linkDesc.localLink, linkDesc.localLocator, linkDesc.remoteLocator );
499 }
500
501 //
502 // delete all pending messages for the link that has been closed
503 //
504
505 BOOST_FOREACH( Message* msg, linkDesc.waitingmsg ){
506 delete msg;
507 }
508
509 linkDesc.waitingmsg.clear();
510
511 //
512 // remove the link descriptor
513 //
514
515 removeLink( localLink );
516
517 } // LINK_STATE_CLOSE_REQUEST
518
519 //
520 // handle locator updates
521 //
522
523 else if( spovmsg->getType() == AribaBaseMsg::LINK_STATE_UPDATE ){
524
525 const LinkID& localLink = spovmsg->getRemoteLink();
526 logging_debug( "received link update for link " << localLink.toString() );
527
528 //
529 // find the link description
530 //
531
532 LinkDescriptor& linkDesc = queryLocalLink( localLink );
533 if (linkDesc.isUnspecified()) {
534 logging_warn("Failed to update local link " << localLink.toString());
535 return false;
536 }
537
538 //
539 // update the remote locator
540 //
541
542 const NetworkLocator* oldremote = linkDesc.remoteLocator;
543 linkDesc.remoteLocator = dynamic_cast<const NetworkLocator*>(message->getSourceAddress());
544
545 //
546 // inform the listeners (local link has _not_ changed!)
547 //
548
549 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
550 i->onLinkChanged(
551 linkDesc.localLink, // linkid
552 linkDesc.localLocator, // old local
553 linkDesc.localLocator, // new local
554 oldremote, // old remote
555 linkDesc.remoteLocator // new remote
556 );
557 }
558
559 } // LINK_STATE_UPDATE
560
561 return true;
562}
563
564void BaseCommunication::addLink( const LinkDescriptor& link ) {
565 linkSet.push_back( link );
566}
567
568void BaseCommunication::removeLink( const LinkID& localLink ) {
569
570 LinkSet::iterator i = linkSet.begin();
571 LinkSet::iterator iend = linkSet.end();
572
573 for( ; i != iend; i++){
574 if( (*i).localLink != localLink) continue;
575
576 BOOST_FOREACH( Message* msg, i->waitingmsg ){
577 delete msg;
578 }
579
580 i->waitingmsg.clear();
581 linkSet.erase( i );
582
583 break;
584 }
585}
586
587BaseCommunication::LinkDescriptor& BaseCommunication::queryLocalLink( const LinkID& link ) const {
588 for (int i=0; i<linkSet.size();i++)
589 if (linkSet[i].localLink == link) return (LinkDescriptor&)linkSet[i];
590 return (LinkDescriptor&)LinkDescriptor::UNSPECIFIED;
591}
592
593BaseCommunication::LinkDescriptor& BaseCommunication::queryRemoteLink( const LinkID& link ) const {
594 for (int i=0; i<linkSet.size();i++)
595 if (linkSet[i].remoteLink == link) return (LinkDescriptor&)linkSet[i];
596 return (LinkDescriptor&)LinkDescriptor::UNSPECIFIED;
597}
598
599LinkIDs BaseCommunication::getLocalLinks( const EndpointDescriptor& ep ) const {
600 LinkIDs ids;
601
602 for (int i=0; i<linkSet.size(); i++){
603 if( ep == EndpointDescriptor::UNSPECIFIED ){
604 ids.push_back( linkSet[i].localLink );
605 } else {
606 if ( linkSet[i].remoteLocator == ep.locator )
607 ids.push_back( linkSet[i].localLink );
608 }
609 }
610
611 return ids;
612}
613
614void BaseCommunication::onNetworkChange(const NetworkChangeInterface::NetworkChangeInfo& info){
615
616#ifdef UNDERLAY_OMNET
617
618 // we have no mobility support for simulations
619 return
620
621#endif // UNDERLAY_OMNET
622
623 //
624 // we only care about address changes, not about interface changes
625 // as address changes are triggered by interface changes, we are safe here
626 //
627
628 if( info.type != NetworkChangeInterface::EventTypeAddressNew &&
629 info.type != NetworkChangeInterface::EventTypeAddressDelete ) return;
630
631 logging_info( "base communication is handling network address changes" );
632
633 //
634 // get all now available addresses
635 //
636
637 NetworkInformation networkInformation;
638 AddressInformation addressInformation;
639
640 NetworkInterfaceList interfaces = networkInformation.getInterfaces();
641 AddressList addresses;
642
643 for( NetworkInterfaceList::iterator i = interfaces.begin(); i != interfaces.end(); i++ ){
644 AddressList newaddr = addressInformation.getAddresses(*i);
645 addresses.insert( addresses.end(), newaddr.begin(), newaddr.end() );
646 }
647
648 //
649 // get current locators for the local endpoint
650 // TODO: this code is dublicate of the ctor code!!! cleanup!
651 //
652
653 NetworkProtocol::NetworkLocatorSet locators = network->getAddresses();
654 NetworkProtocol::NetworkLocatorSet::iterator i = locators.begin();
655 NetworkProtocol::NetworkLocatorSet::iterator iend = locators.end();
656
657 //
658 // remember the old local endpoint, in case it changes
659 //
660
661 EndpointDescriptor oldLocalDescriptor( localDescriptor );
662
663 //
664 // look for local locators that we can use in communication
665 //
666 // choose the first locator that is not localhost
667 //
668
669 bool foundLocator = false;
670 bool changedLocator = false;
671
672 for( ; i != iend; i++){
673 logging_debug( "local locator found " << (*i)->toString() );
674 IPv4Locator* ipv4locator = dynamic_cast<IPv4Locator*>(*i);
675
676 if( *ipv4locator != IPv4Locator::LOCALHOST &&
677 *ipv4locator != IPv4Locator::ANY &&
678 *ipv4locator != IPv4Locator::BROADCAST ){
679
680 ipv4locator->setPort( listenport );
681 changedLocator = *localDescriptor.locator != *ipv4locator;
682 localDescriptor.locator = ipv4locator;
683 logging_info( "binding to addr = " << ipv4locator->toString() );
684 foundLocator = true;
685 break;
686 }
687 } // for( ; i != iend; i++)
688
689 //
690 // if we found no locator, bind to localhost
691 //
692
693 if( !foundLocator ){
694 changedLocator = *localDescriptor.locator != IPv4Locator::LOCALHOST;
695 localDescriptor.locator = new IPv4Locator( IPv4Locator::LOCALHOST );
696 ((IPv4Locator*)(localDescriptor.locator))->setPort( listenport );
697 logging_info( "found no good local lcoator, binding to addr = " <<
698 localDescriptor.locator->toString() );
699 }
700
701 //
702 // if we have connections that have no more longer endpoints
703 // close these. they will be automatically built up again.
704 // also update the local locator in the linkset mapping
705 //
706
707 if( changedLocator ){
708
709 logging_debug( "local endp locator has changed to " << localDescriptor.toString() <<
710 ", resettings connections that end at old locator " <<
711 oldLocalDescriptor.toString());
712
713 LinkSet::iterator i = linkSet.begin();
714 LinkSet::iterator iend = linkSet.end();
715
716 for( ; i != iend; i++ ){
717
718 logging_debug( "checking connection for locator change: " <<
719 " local " << (*i).localLocator->toString() <<
720 " old " << oldLocalDescriptor.locator->toString() );
721
722 if( *((*i).localLocator) == *(oldLocalDescriptor.locator) ){
723
724 logging_debug("terminating connection to " << (*i).remoteLocator->toString() );
725 transport->terminate( oldLocalDescriptor.locator, (*i).remoteLocator );
726
727 (*i).localLocator = localDescriptor.locator;
728 }
729 } // for( ; i != iend; i++ )
730
731 // wait 500ms to give the sockets time to shut down
732 usleep( 500000 );
733
734 } else {
735
736 logging_debug( "locator has not changed, not resetting connections" );
737
738 }
739
740 //
741 // handle the connections that have no longer any
742 // valid locator. send update messages with the new
743 // locator, so the remote node updates its locator/link mapping
744 //
745
746 LinkSet::iterator iAffected = linkSet.begin();
747 LinkSet::iterator endAffected = linkSet.end();
748
749 for( ; iAffected != endAffected; iAffected++ ){
750 LinkDescriptor descr = *iAffected;
751 logging_debug( "sending out link locator update to " << descr.remoteLocator->toString() );
752
753 AribaBaseMsg updateMsg( descr.remoteLocator,
754 AribaBaseMsg::LINK_STATE_UPDATE,
755 descr.localLink, descr.remoteLink );
756
757 transport->sendMessage( &updateMsg );
758 }
759}
760
761}} // namespace ariba, communication
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