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source: source/ariba/communication/BaseCommunication.cpp@ 5057

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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,
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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// [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), basecommStarted(false){
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 can we 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 basecommStarted = true;
148 logging_info( "base communication started up" );
149}
150
151void BaseCommunication::stop() {
152
153 logging_info( "stopping base communication and transport ..." );
154
155 transport->stop();
156 delete transport;
157 delete network;
158
159 basecommStarted = false;
160 logging_info( "base communication stopped" );
161}
162
163bool BaseCommunication::isStarted(){
164 return basecommStarted;
165}
166
167const LinkID BaseCommunication::establishLink(
168 const EndpointDescriptor& descriptor,
169 const LinkID& link_id,
170 const QoSParameterSet& qos,
171 const SecurityParameterSet& sec) {
172
173 // copy link id
174 LinkID linkid = link_id;
175
176 // debug
177 logging_debug( "request to establish link" );
178
179 //
180 // just use the first locator in the endp descriptors
181 //
182 if( descriptor.locator == NULL ){
183 logging_error( "invalid destination endpoint" );
184 return LinkID::UNSPECIFIED;
185 }
186
187 if( localDescriptor.locator == NULL ){
188 logging_error( "invalid local endpoint" );
189 return LinkID::UNSPECIFIED;
190 }
191
192 const NetworkLocator* remote = descriptor.locator;
193 const NetworkLocator* local = localDescriptor.locator;
194
195 // create link identifier and link descriptor
196 if (linkid.isUnspecified()){
197 linkid = LinkID::create();
198 assert(!linkid.isUnspecified());
199 }
200
201 logging_debug( "creating new local descriptor entry with local link id " << linkid.toString() );
202 LinkDescriptor linkDescriptor( linkid, local, LinkID::UNSPECIFIED, remote, descriptor, false );
203 addLink( linkDescriptor );
204
205 //
206 // create a base msg with our link id and
207 // a request to open a link on the other side
208 //
209
210 logging_debug( "sending out base messages with request to open link to " << remote->toString() );
211 AribaBaseMsg baseMsg(
212 remote,
213 AribaBaseMsg::LINK_STATE_OPEN_REQUEST,
214 linkid,
215 LinkID::UNSPECIFIED );
216
217 transport->sendMessage(&baseMsg);
218 return linkid;
219}
220
221void BaseCommunication::dropLink(const LinkID link) {
222
223 logging_debug( "starting to drop link " + link.toString() );
224
225 // see if we have the link
226 LinkDescriptor& descriptor = queryLocalLink( link );
227 if( descriptor.isUnspecified() ){
228 logging_error( "don't know the link you want to drop "+ link.toString() );
229 return;
230 }
231
232 // create message to drop the link
233 logging_debug( "sending out link close request. for us, the link is closed now" );
234 AribaBaseMsg msg(
235 descriptor.remoteLocator,
236 AribaBaseMsg::LINK_STATE_CLOSE_REQUEST,
237 descriptor.localLink,
238 descriptor.remoteLink
239 );
240
241 // send message to drop the link
242 transport->sendMessage( &msg );
243
244 // tell the registered listeners
245 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
246 i->onLinkDown( link, descriptor.localLocator, descriptor.remoteLocator );
247 }
248
249 // remove from map
250 removeLink(link);
251}
252
253seqnum_t BaseCommunication::sendMessage( const LinkID lid, const Message* message) {
254
255 logging_debug( "sending out message to link " << lid.toString() );
256
257 // query local link info
258 LinkDescriptor& linkDesc = queryLocalLink(lid);
259 if( linkDesc.isUnspecified() ){
260 logging_error( "don't know the link with id " << lid.toString() );
261 return -1;
262 }
263
264 // create message
265 AribaBaseMsg msg(
266 linkDesc.remoteLocator,
267 AribaBaseMsg::LINK_STATE_DATA,
268 linkDesc.localLink,
269 linkDesc.remoteLink
270 );
271
272 // encapsulate the payload message
273 msg.encapsulate( const_cast<Message*>(message) );
274
275 if( !linkDesc.linkup ){
276 logging_error("cant send message on link " << lid.toString() << ", link not up");
277 return -1;
278 }
279
280 // send message
281 transport->sendMessage( &msg );
282 return ++currentSeqnum;
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& /*invalid*/, const NodeID& ){
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 if(localLink.isUnspecified()){
376 logging_error("local link is unspecified");
377 return false;
378 }
379
380 if(remoteLink.isUnspecified()){
381 logging_error("remote link is unspecified");
382 return false;
383 }
384
385 const NetworkLocator* localLocator = dynamic_cast<const NetworkLocator*>(localDescriptor.locator);
386 const NetworkLocator* remoteLocator = dynamic_cast<const NetworkLocator*>(message->getSourceAddress());
387
388 logging_debug( "localLocator=" << localLocator->toString()
389 << " remoteLocator=" << remoteLocator->toString());
390
391 // ask the registered listeners if this link
392 // creation is fine. we will only allow the
393 // link if all of them agree
394
395 bool allowlink = true;
396 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
397 allowlink &= i->onLinkRequest( localLink, localLocator, remoteLocator );
398 }
399
400 if( !allowlink ){
401 logging_warn( "overlay denied creation of link" );
402 return true;
403 }
404
405 //
406 // create and save the descriptor for the link
407 //
408
409 LinkDescriptor linkDescriptor(localLink, localLocator, remoteLink,
410 remoteLocator, EndpointDescriptor(remoteLocator), true);
411
412 logging_debug( "saving new link descriptor with " <<
413 "[local link " << localLink.toString() << "] " <<
414 "[local locator " << localLocator->toString() << "] " <<
415 "[remote link " << remoteLink.toString() << "] " <<
416 "[remote locator " << remoteLocator->toString() << "]" <<
417 "[link up true]" );
418
419 addLink( linkDescriptor );
420
421 //
422 // send out a link reply
423 //
424
425 logging_debug( "sending back link open reply for " <<
426 "[local link " << localLink.toString() << "] " <<
427 "[remote link " << remoteLink.toString() << "]" );
428
429 AribaBaseMsg reply(remoteLocator,
430 AribaBaseMsg::LINK_STATE_OPEN_REPLY,
431 localLink,
432 remoteLink);
433
434 transport->sendMessage( &reply );
435
436 //
437 // the link is now open
438 //
439
440 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
441 i->onLinkUp( localLink, localLocator, remoteLocator );
442 }
443
444 } // LINK_STATE_OPEN_REQUEST
445
446 //
447 // handle link open replies
448 //
449
450 else if( spovmsg->getType() == AribaBaseMsg::LINK_STATE_OPEN_REPLY ){
451
452 logging_debug( "received link open reply for a link we initiated" );
453
454 // this is a reply to a link open request, so we have already
455 // a link mapping and can now set the remote link to valid
456 LinkDescriptor& linkDesc = queryLocalLink( spovmsg->getRemoteLink() );
457
458 if (linkDesc.isUnspecified()) {
459 logging_warn("failed to find local link " << spovmsg->getRemoteLink().toString());
460 return false;
461 }
462
463 linkDesc.remoteLink = spovmsg->getLocalLink();
464 linkDesc.linkup = true;
465
466 logging_debug( "the link is now up with local link id " << linkDesc.localLink.toString() <<
467 " and remote link id " << linkDesc.remoteLink.toString() );
468
469 // notify the baseoverlay that the link is up, so
470 // it can exchange nodeids over this link. then we
471 // can send the queued messages, as both nodes have
472 // to know their nodeids first
473
474 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
475 i->onLinkUp( linkDesc.localLink, linkDesc.localLocator, linkDesc.remoteLocator );
476 }
477
478 } // LINK_STATE_OPEN_REPLY
479
480 //
481 // handle link close requests
482 //
483
484 else if( spovmsg->getType() == AribaBaseMsg::LINK_STATE_CLOSE_REQUEST ){
485
486 const LinkID& localLink = spovmsg->getRemoteLink();
487 logging_debug( "received link close request for link " << localLink.toString() );
488
489 //
490 // the link is closed immediately, we
491 // don't need to send out a reply, so we
492 // delete the mapping and inform
493 //
494
495 LinkDescriptor& linkDesc = queryLocalLink( localLink );
496 if (linkDesc.isUnspecified()) {
497 logging_warn("Failed to find local link " << localLink.toString());
498 return false;
499 }
500
501 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
502 i->onLinkDown( linkDesc.localLink, linkDesc.localLocator, linkDesc.remoteLocator );
503 }
504
505 //
506 // remove the link descriptor
507 //
508
509 removeLink( localLink );
510
511 } // LINK_STATE_CLOSE_REQUEST
512
513 //
514 // handle locator updates
515 //
516
517 else if( spovmsg->getType() == AribaBaseMsg::LINK_STATE_UPDATE ){
518
519 const LinkID& localLink = spovmsg->getRemoteLink();
520 logging_debug( "received link update for link " << localLink.toString() );
521
522 //
523 // find the link description
524 //
525
526 LinkDescriptor& linkDesc = queryLocalLink( localLink );
527 if (linkDesc.isUnspecified()) {
528 logging_warn("Failed to update local link " << localLink.toString());
529 return false;
530 }
531
532 //
533 // update the remote locator
534 //
535
536 const NetworkLocator* oldremote = linkDesc.remoteLocator;
537 linkDesc.remoteLocator = dynamic_cast<const NetworkLocator*>(message->getSourceAddress());
538
539 //
540 // inform the listeners (local link has _not_ changed!)
541 //
542
543 BOOST_FOREACH( CommunicationEvents* i, eventListener ){
544 i->onLinkChanged(
545 linkDesc.localLink, // linkid
546 linkDesc.localLocator, // old local
547 linkDesc.localLocator, // new local
548 oldremote, // old remote
549 linkDesc.remoteLocator // new remote
550 );
551 }
552
553 } // LINK_STATE_UPDATE
554
555 return true;
556}
557
558void BaseCommunication::addLink( const LinkDescriptor& link ) {
559 linkSet.push_back( link );
560}
561
562void BaseCommunication::removeLink( const LinkID& localLink ) {
563
564 LinkSet::iterator i = linkSet.begin();
565 LinkSet::iterator iend = linkSet.end();
566
567 for( ; i != iend; i++){
568 if( (*i).localLink != localLink) continue;
569
570 linkSet.erase( i );
571 break;
572 }
573}
574
575BaseCommunication::LinkDescriptor& BaseCommunication::queryLocalLink( const LinkID& link ) const {
576 for (int i=0; i<linkSet.size();i++)
577 if (linkSet[i].localLink == link) return (LinkDescriptor&)linkSet[i];
578 return (LinkDescriptor&)LinkDescriptor::UNSPECIFIED;
579}
580
581BaseCommunication::LinkDescriptor& BaseCommunication::queryRemoteLink( const LinkID& link ) const {
582 for (int i=0; i<linkSet.size();i++)
583 if (linkSet[i].remoteLink == link) return (LinkDescriptor&)linkSet[i];
584 return (LinkDescriptor&)LinkDescriptor::UNSPECIFIED;
585}
586
587LinkIDs BaseCommunication::getLocalLinks( const EndpointDescriptor& ep ) const {
588 LinkIDs ids;
589
590 for (int i=0; i<linkSet.size(); i++){
591 if( ep == EndpointDescriptor::UNSPECIFIED ){
592 ids.push_back( linkSet[i].localLink );
593 } else {
594 if ( linkSet[i].remoteLocator == ep.locator )
595 ids.push_back( linkSet[i].localLink );
596 }
597 }
598
599 return ids;
600}
601
602void BaseCommunication::onNetworkChange(const NetworkChangeInterface::NetworkChangeInfo& info){
603
604#ifdef UNDERLAY_OMNET
605
606 // we have no mobility support for simulations
607 return
608
609#endif // UNDERLAY_OMNET
610
611 //
612 // we only care about address changes, not about interface changes
613 // as address changes are triggered by interface changes, we are safe here
614 //
615
616 if( info.type != NetworkChangeInterface::EventTypeAddressNew &&
617 info.type != NetworkChangeInterface::EventTypeAddressDelete ) return;
618
619 logging_info( "base communication is handling network address changes" );
620
621 //
622 // get all now available addresses
623 //
624
625 NetworkInformation networkInformation;
626 AddressInformation addressInformation;
627
628 NetworkInterfaceList interfaces = networkInformation.getInterfaces();
629 AddressList addresses;
630
631 for( NetworkInterfaceList::iterator i = interfaces.begin(); i != interfaces.end(); i++ ){
632 AddressList newaddr = addressInformation.getAddresses(*i);
633 addresses.insert( addresses.end(), newaddr.begin(), newaddr.end() );
634 }
635
636 //
637 // get current locators for the local endpoint
638 // TODO: this code is dublicate of the ctor code!!! cleanup!
639 //
640
641 NetworkProtocol::NetworkLocatorSet locators = network->getAddresses();
642 NetworkProtocol::NetworkLocatorSet::iterator i = locators.begin();
643 NetworkProtocol::NetworkLocatorSet::iterator iend = locators.end();
644
645 //
646 // remember the old local endpoint, in case it changes
647 //
648
649 EndpointDescriptor oldLocalDescriptor( localDescriptor );
650
651 //
652 // look for local locators that we can use in communication
653 //
654 // choose the first locator that is not localhost
655 //
656
657 bool foundLocator = false;
658 bool changedLocator = false;
659
660 for( ; i != iend; i++){
661 logging_debug( "local locator found " << (*i)->toString() );
662 IPv4Locator* ipv4locator = dynamic_cast<IPv4Locator*>(*i);
663
664 if( *ipv4locator != IPv4Locator::LOCALHOST &&
665 *ipv4locator != IPv4Locator::ANY &&
666 *ipv4locator != IPv4Locator::BROADCAST ){
667
668 ipv4locator->setPort( listenport );
669 changedLocator = *localDescriptor.locator != *ipv4locator;
670 localDescriptor.locator = ipv4locator;
671 logging_info( "binding to addr = " << ipv4locator->toString() );
672 foundLocator = true;
673 break;
674 }
675 } // for( ; i != iend; i++)
676
677 //
678 // if we found no locator, bind to localhost
679 //
680
681 if( !foundLocator ){
682 changedLocator = *localDescriptor.locator != IPv4Locator::LOCALHOST;
683 localDescriptor.locator = new IPv4Locator( IPv4Locator::LOCALHOST );
684 ((IPv4Locator*)(localDescriptor.locator))->setPort( listenport );
685 logging_info( "found no good local lcoator, binding to addr = " <<
686 localDescriptor.locator->toString() );
687 }
688
689 //
690 // if we have connections that have no more longer endpoints
691 // close these. they will be automatically built up again.
692 // also update the local locator in the linkset mapping
693 //
694
695 if( changedLocator ){
696
697 logging_debug( "local endp locator has changed to " << localDescriptor.toString() <<
698 ", resettings connections that end at old locator " <<
699 oldLocalDescriptor.toString());
700
701 LinkSet::iterator i = linkSet.begin();
702 LinkSet::iterator iend = linkSet.end();
703
704 for( ; i != iend; i++ ){
705
706 logging_debug( "checking connection for locator change: " <<
707 " local " << (*i).localLocator->toString() <<
708 " old " << oldLocalDescriptor.locator->toString() );
709
710 if( *((*i).localLocator) == *(oldLocalDescriptor.locator) ){
711
712 logging_debug("terminating connection to " << (*i).remoteLocator->toString() );
713 transport->terminate( oldLocalDescriptor.locator, (*i).remoteLocator );
714
715 (*i).localLocator = localDescriptor.locator;
716 }
717 } // for( ; i != iend; i++ )
718
719 // wait 500ms to give the sockets time to shut down
720 usleep( 500000 );
721
722 } else {
723
724 logging_debug( "locator has not changed, not resetting connections" );
725
726 }
727
728 //
729 // handle the connections that have no longer any
730 // valid locator. send update messages with the new
731 // locator, so the remote node updates its locator/link mapping
732 //
733
734 LinkSet::iterator iAffected = linkSet.begin();
735 LinkSet::iterator endAffected = linkSet.end();
736
737 for( ; iAffected != endAffected; iAffected++ ){
738 LinkDescriptor descr = *iAffected;
739 logging_debug( "sending out link locator update to " << descr.remoteLocator->toString() );
740
741 AribaBaseMsg updateMsg( descr.remoteLocator,
742 AribaBaseMsg::LINK_STATE_UPDATE,
743 descr.localLink, descr.remoteLink );
744
745 transport->sendMessage( &updateMsg );
746 }
747}
748
749}} // namespace ariba, communication
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