1 // terrasync.cxx -- scenery fetcher
3 // Started by Curtis Olson, November 2002.
5 // Copyright (C) 2002 Curtis L. Olson - http://www.flightgear.org/~curt
6 // Copyright (C) 2008 Alexander R. Perry <alex.perry@ieee.org>
7 // Copyright (C) 2011 Thorsten Brehm <brehmt@gmail.com>
9 // This program is free software; you can redistribute it and/or
10 // modify it under the terms of the GNU General Public License as
11 // published by the Free Software Foundation; either version 2 of the
12 // License, or (at your option) any later version.
14 // This program is distributed in the hope that it will be useful, but
15 // WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 // General Public License for more details.
19 // You should have received a copy of the GNU General Public License
20 // along with this program; if not, write to the Free Software
21 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26 # include <simgear_config.h>
29 #include <simgear/compiler.h>
38 #elif defined(_MSC_VER)
44 #include <stdlib.h> // atoi() atof() abs() system()
45 #include <signal.h> // signal()
53 #include <simgear/compiler.h>
55 #include "terrasync.hxx"
57 #include <simgear/bucket/newbucket.hxx>
58 #include <simgear/misc/sg_path.hxx>
59 #include <simgear/misc/strutils.hxx>
60 #include <simgear/threads/SGQueue.hxx>
61 #include <simgear/misc/sg_dir.hxx>
62 #include <simgear/debug/BufferedLogCallback.hxx>
63 #include <simgear/props/props_io.hxx>
64 #include <simgear/io/HTTPClient.hxx>
65 #include <simgear/io/SVNRepository.hxx>
66 #include <simgear/structure/exception.hxx>
68 static const bool svn_built_in_available = true;
70 using namespace simgear;
73 const char* rsync_cmd =
74 "rsync --verbose --archive --delete --perms --owner --group";
76 const char* svn_options =
79 namespace UpdateInterval
81 // interval in seconds to allow an update to repeat after a successful update (=daily)
82 static const double SuccessfulAttempt = 24*60*60;
83 // interval in seconds to allow another update after a failed attempt (10 minutes)
84 static const double FailedAttempt = 10*60;
87 typedef map<string,time_t> CompletedTiles;
89 ///////////////////////////////////////////////////////////////////////////////
90 // helper functions ///////////////////////////////////////////////////////////
91 ///////////////////////////////////////////////////////////////////////////////
92 string stripPath(string path)
94 // svn doesn't like trailing white-spaces or path separators - strip them!
95 path = simgear::strutils::strip(path);
96 size_t slen = path.length();
98 ((path[slen-1]=='/')||(path[slen-1]=='\\')))
102 return path.substr(0,slen);
105 bool hasWhitespace(string path)
107 return path.find(' ')!=string::npos;
110 ///////////////////////////////////////////////////////////////////////////////
111 // SyncItem ////////////////////////////////////////////////////////////
112 ///////////////////////////////////////////////////////////////////////////////
118 Stop = 0, ///< special item indicating to stop the SVNThread
129 Cached, ///< using already cached result
142 SyncItem(string dir, Type ty) :
153 ///////////////////////////////////////////////////////////////////////////////
156 * @brief SyncSlot encapsulates a queue of sync items we will fetch
157 * serially. Multiple slots exist to sync different types of item in
164 isNewDirectory(false),
168 SyncItem currentItem;
170 std::queue<SyncItem> queue;
171 std::auto_ptr<SVNRepository> repository;
173 bool busy; ///< is the slot working or idle
175 unsigned int nextWarnTimeout;
178 static const int SYNC_SLOT_TILES = 0; ///< Terrain and Objects sync
179 static const int SYNC_SLOT_SHARED_DATA = 1; /// shared Models and Airport data
180 static const int SYNC_SLOT_AI_DATA = 2; /// AI traffic and models
181 static const unsigned int NUM_SYNC_SLOTS = 3;
184 * @brief translate a sync item type into one of the available slots.
185 * This provides the scheduling / balancing / prioritising between slots.
187 static unsigned int syncSlotForType(SyncItem::Type ty)
190 case SyncItem::Tile: return SYNC_SLOT_TILES;
191 case SyncItem::SharedModels:
192 case SyncItem::AirportData:
193 return SYNC_SLOT_SHARED_DATA;
194 case SyncItem::AIData:
195 return SYNC_SLOT_AI_DATA;
198 return SYNC_SLOT_SHARED_DATA;
203 ///////////////////////////////////////////////////////////////////////////////
204 // SGTerraSync::SvnThread /////////////////////////////////////////////////////
205 ///////////////////////////////////////////////////////////////////////////////
206 class SGTerraSync::SvnThread : public SGThread
210 virtual ~SvnThread( ) { stop(); }
215 bool isIdle() {return !_busy; }
216 void request(const SyncItem& dir) {waitingTiles.push_front(dir);}
217 bool isDirty() { bool r = _is_dirty;_is_dirty = false;return r;}
218 bool hasNewTiles() { return !_freshTiles.empty();}
219 SyncItem getNewTile() { return _freshTiles.pop_front();}
221 void setSvnServer(string server) { _svn_server = stripPath(server);}
222 void setSvnDataServer(string server) { _svn_data_server = stripPath(server);}
224 void setExtSvnUtility(string svn_util) { _svn_command = simgear::strutils::strip(svn_util);}
225 void setRsyncServer(string server) { _rsync_server = simgear::strutils::strip(server);}
226 void setLocalDir(string dir) { _local_dir = stripPath(dir);}
227 string getLocalDir() { return _local_dir;}
228 void setUseSvn(bool use_svn) { _use_svn = use_svn;}
229 void setAllowedErrorCount(int errors) {_allowed_errors = errors;}
231 void setCachePath(const SGPath& p) {_persistentCachePath = p;}
232 void setCacheHits(unsigned int hits) {_cache_hits = hits;}
233 void setUseBuiltin(bool built_in) { _use_built_in = built_in;}
235 volatile bool _active;
236 volatile bool _running;
238 volatile bool _stalled;
239 volatile int _fail_count;
240 volatile int _updated_tile_count;
241 volatile int _success_count;
242 volatile int _consecutive_errors;
243 volatile int _allowed_errors;
244 volatile int _cache_hits;
245 volatile int _transfer_rate;
246 // kbytes, not bytes, because bytes might overflow 2^31
247 volatile int _total_kb_downloaded;
252 // external model run and helpers
254 void syncPathExternal(const SyncItem& next);
255 bool runExternalSyncCommand(const char* dir);
257 // internal mode run and helpers
259 void updateSyncSlot(SyncSlot& slot);
261 // commond helpers between both internal and external models
263 bool isPathCached(const SyncItem& next) const;
264 void initCompletedTilesPersistentCache();
265 void writeCompletedTilesPersistentCache() const;
266 void updated(SyncItem item, bool isNewDirectory);
267 void fail(SyncItem failedItem);
271 SyncSlot _syncSlots[NUM_SYNC_SLOTS];
273 volatile bool _is_dirty;
275 SGBlockingDeque <SyncItem> waitingTiles;
276 CompletedTiles _completedTiles;
277 SGBlockingDeque <SyncItem> _freshTiles;
280 string _svn_data_server;
282 string _rsync_server;
284 SGPath _persistentCachePath;
287 SGTerraSync::SvnThread::SvnThread() :
293 _updated_tile_count(0),
295 _consecutive_errors(0),
299 _total_kb_downloaded(0),
305 _http.setUserAgent("terrasync-" SG_STRINGIZE(SG_VERSION));
308 void SGTerraSync::SvnThread::stop()
310 // drop any pending requests
311 waitingTiles.clear();
316 // set stop flag and wake up the thread with an empty request
318 SyncItem w(string(), SyncItem::Stop);
324 bool SGTerraSync::SvnThread::start()
331 SG_LOG(SG_TERRAIN,SG_ALERT,
332 "Cannot start scenery download. Local cache directory is undefined.");
338 SGPath path(_local_dir);
341 SG_LOG(SG_TERRAIN,SG_ALERT,
342 "Cannot start scenery download. Directory '" << _local_dir <<
343 "' does not exist. Set correct directory path or create directory folder.");
349 path.append("version");
352 SG_LOG(SG_TERRAIN,SG_ALERT,
353 "Cannot start scenery download. Directory '" << _local_dir <<
354 "' contains the base package. Use a separate directory.");
360 _use_svn |= _use_built_in;
362 if ((_use_svn)&&(_svn_server==""))
364 SG_LOG(SG_TERRAIN,SG_ALERT,
365 "Cannot start scenery download. Subversion scenery server is undefined.");
370 if ((!_use_svn)&&(_rsync_server==""))
372 SG_LOG(SG_TERRAIN,SG_ALERT,
373 "Cannot start scenery download. Rsync scenery server is undefined.");
380 _updated_tile_count = 0;
382 _consecutive_errors = 0;
389 if (_use_svn && _use_built_in)
390 status = "Using built-in SVN support. ";
393 status = "Using external SVN utility '";
394 status += _svn_command;
399 status = "Using RSYNC. ";
402 // not really an alert - but we want to (always) see this message, so user is
403 // aware we're downloading scenery (and using bandwidth).
404 SG_LOG(SG_TERRAIN,SG_ALERT,
405 "Starting automatic scenery download/synchronization. "
407 << "Directory: '" << _local_dir << "'.");
413 bool SGTerraSync::SvnThread::runExternalSyncCommand(const char* dir)
416 SGPath localPath( _local_dir );
417 localPath.append( dir );
421 buf << "\"" << _svn_command << "\" "
422 << svn_options << " "
423 << "\"" << _svn_server << "/" << dir << "\" "
424 << "\"" << localPath.str_native() << "\"";
426 buf << rsync_cmd << " "
427 << "\"" << _rsync_server << "/" << dir << "/\" "
428 << "\"" << localPath.str_native() << "/\"";
433 // windows command line parsing is just lovely...
434 // to allow white spaces, the system call needs this:
435 // ""C:\Program Files\something.exe" somearg "some other arg""
436 // Note: whitespace strings quoted by a pair of "" _and_ the
437 // entire string needs to be wrapped by "" too.
438 // The svn url needs forward slashes (/) as a path separator while
439 // the local path needs windows-native backslash as a path separator.
440 command = "\"" + buf.str() + "\"";
444 SG_LOG(SG_TERRAIN,SG_DEBUG, "sync command '" << command << "'");
447 // tbd: does Windows support "popen"?
448 int rc = system( command.c_str() );
450 FILE* pipe = popen( command.c_str(), "r");
452 // wait for external process to finish
459 SG_LOG(SG_TERRAIN,SG_ALERT,
460 "Failed to synchronize directory '" << dir << "', " <<
461 "error code= " << rc);
467 void SGTerraSync::SvnThread::run()
470 initCompletedTilesPersistentCache();
484 void SGTerraSync::SvnThread::runExternal()
488 SyncItem next = waitingTiles.pop_front();
492 if (isPathCached(next)) {
494 SG_LOG(SG_TERRAIN, SG_DEBUG,
495 "Cache hit for: '" << next._dir << "'");
496 next._status = SyncItem::Cached;
497 _freshTiles.push_back(next);
502 syncPathExternal(next);
504 if ((_allowed_errors >= 0)&&
505 (_consecutive_errors >= _allowed_errors))
510 } // of thread running loop
513 void SGTerraSync::SvnThread::syncPathExternal(const SyncItem& next)
516 SGPath path( _local_dir );
517 path.append( next._dir );
518 bool isNewDirectory = !path.exists();
521 if (isNewDirectory) {
522 int rc = path.create_dir( 0755 );
524 SG_LOG(SG_TERRAIN,SG_ALERT,
525 "Cannot create directory '" << path << "', return code = " << rc );
526 throw sg_exception("Cannot create directory for terrasync", path.str());
530 if (!runExternalSyncCommand(next._dir.c_str())) {
531 throw sg_exception("Running external sync command failed");
533 } catch (sg_exception& e) {
539 updated(next, isNewDirectory);
543 void SGTerraSync::SvnThread::updateSyncSlot(SyncSlot &slot)
545 if (slot.repository.get()) {
546 if (slot.repository->isDoingSync()) {
548 if (slot.stamp.elapsedMSec() > slot.nextWarnTimeout) {
549 SG_LOG(SG_TERRAIN, SG_INFO, "sync taking a long time:" << slot.currentItem._dir << " taken " << slot.stamp.elapsedMSec());
550 SG_LOG(SG_TERRAIN, SG_INFO, "HTTP status:" << _http.hasActiveRequests());
551 slot.nextWarnTimeout += 10000;
554 return; // easy, still working
558 SVNRepository::ResultCode res = slot.repository->failure();
559 if (res == SVNRepository::SVN_ERROR_NOT_FOUND) {
560 // this is fine, but maybe we should use a different return code
561 // in the future to higher layers can distinguish this case
562 slot.currentItem._status = SyncItem::NotFound;
563 _freshTiles.push_back(slot.currentItem);
565 } else if (res != SVNRepository::SVN_NO_ERROR) {
566 fail(slot.currentItem);
568 updated(slot.currentItem, slot.isNewDirectory);
569 SG_LOG(SG_TERRAIN, SG_DEBUG, "sync of " << slot.repository->baseUrl() << " finished ("
570 << slot.stamp.elapsedMSec() << " msec");
573 // whatever happened, we're done with this repository instance
575 slot.repository.reset();
578 // init and start sync of the next repository
579 if (!slot.queue.empty()) {
580 slot.currentItem = slot.queue.front();
583 SGPath path(_local_dir);
584 path.append(slot.currentItem._dir);
585 slot.isNewDirectory = !path.exists();
586 if (slot.isNewDirectory) {
587 int rc = path.create_dir( 0755 );
589 SG_LOG(SG_TERRAIN,SG_ALERT,
590 "Cannot create directory '" << path << "', return code = " << rc );
591 fail(slot.currentItem);
594 } // of creating directory step
596 string serverUrl(_svn_server);
597 if (slot.currentItem._type == SyncItem::AIData) {
598 serverUrl = _svn_data_server;
601 slot.repository.reset(new SVNRepository(path, &_http));
602 slot.repository->setBaseUrl(serverUrl + "/" + slot.currentItem._dir);
603 slot.repository->update();
605 slot.nextWarnTimeout = 20000;
608 SG_LOG(SG_TERRAIN, SG_DEBUG, "sync of " << slot.repository->baseUrl() << " started, queue size is " << slot.queue.size());
612 void SGTerraSync::SvnThread::runInternal()
616 _transfer_rate = _http.transferRateBytesPerSec();
617 // convert from bytes to kbytes
618 _total_kb_downloaded = static_cast<int>(_http.totalBytesDownloaded() / 1024);
623 // drain the waiting tiles queue into the sync slot queues.
624 while (!waitingTiles.empty()) {
625 SyncItem next = waitingTiles.pop_front();
626 if (isPathCached(next)) {
628 SG_LOG(SG_TERRAIN, SG_DEBUG, "TerraSync Cache hit for: '" << next._dir << "'");
629 next._status = SyncItem::Cached;
630 _freshTiles.push_back(next);
635 unsigned int slot = syncSlotForType(next._type);
636 _syncSlots[slot].queue.push(next);
639 bool anySlotBusy = false;
640 // update each sync slot in turn
641 for (unsigned int slot=0; slot < NUM_SYNC_SLOTS; ++slot) {
642 updateSyncSlot(_syncSlots[slot]);
643 anySlotBusy |= _syncSlots[slot].busy;
648 // wait on the blocking deque here, otherwise we spin
649 // the loop very fast, since _http::update with no connections
650 // active returns immediately.
651 waitingTiles.waitOnNotEmpty();
653 } // of thread running loop
656 bool SGTerraSync::SvnThread::isPathCached(const SyncItem& next) const
658 CompletedTiles::const_iterator ii = _completedTiles.find( next._dir );
659 if (ii == _completedTiles.end()) {
663 // check if the path still physically exists
664 SGPath p(_local_dir);
670 time_t now = time(0);
671 return (ii->second > now);
674 void SGTerraSync::SvnThread::fail(SyncItem failedItem)
676 time_t now = time(0);
677 _consecutive_errors++;
679 failedItem._status = SyncItem::Failed;
680 _freshTiles.push_back(failedItem);
681 _completedTiles[ failedItem._dir ] = now + UpdateInterval::FailedAttempt;
685 void SGTerraSync::SvnThread::updated(SyncItem item, bool isNewDirectory)
687 time_t now = time(0);
688 _consecutive_errors = 0;
690 SG_LOG(SG_TERRAIN,SG_INFO,
691 "Successfully synchronized directory '" << item._dir << "'");
693 item._status = SyncItem::Updated;
694 if (item._type == SyncItem::Tile) {
695 _updated_tile_count++;
698 _freshTiles.push_back(item);
699 _completedTiles[ item._dir ] = now + UpdateInterval::SuccessfulAttempt;
701 writeCompletedTilesPersistentCache();
704 void SGTerraSync::SvnThread::initCompletedTilesPersistentCache()
706 if (!_persistentCachePath.exists()) {
710 SGPropertyNode_ptr cacheRoot(new SGPropertyNode);
711 time_t now = time(0);
714 readProperties(_persistentCachePath.str(), cacheRoot);
715 } catch (sg_exception& e) {
716 SG_LOG(SG_TERRAIN, SG_INFO, "corrupted persistent cache, discarding");
720 for (int i=0; i<cacheRoot->nChildren(); ++i) {
721 SGPropertyNode* entry = cacheRoot->getChild(i);
722 string tileName = entry->getStringValue("path");
723 time_t stamp = entry->getIntValue("stamp");
728 _completedTiles[tileName] = stamp;
732 void SGTerraSync::SvnThread::writeCompletedTilesPersistentCache() const
735 if (_persistentCachePath.isNull()) {
739 std::ofstream f(_persistentCachePath.c_str(), std::ios::trunc);
744 SGPropertyNode_ptr cacheRoot(new SGPropertyNode);
745 CompletedTiles::const_iterator it = _completedTiles.begin();
746 for (; it != _completedTiles.end(); ++it) {
747 SGPropertyNode* entry = cacheRoot->addChild("entry");
748 entry->setStringValue("path", it->first);
749 entry->setIntValue("stamp", it->second);
752 writeProperties(f, cacheRoot, true /* write_all */);
756 ///////////////////////////////////////////////////////////////////////////////
757 // SGTerraSync ////////////////////////////////////////////////////////////////
758 ///////////////////////////////////////////////////////////////////////////////
759 SGTerraSync::SGTerraSync() :
766 _svnThread = new SvnThread();
767 _log = new BufferedLogCallback(SG_TERRAIN, SG_INFO);
768 _log->truncateAt(255);
770 sglog().addCallback(_log);
773 SGTerraSync::~SGTerraSync()
777 sglog().removeCallback(_log);
779 _tiedProperties.Untie();
782 void SGTerraSync::setRoot(SGPropertyNode_ptr root)
784 _terraRoot = root->getNode("/sim/terrasync",true);
787 void SGTerraSync::init()
796 _terraRoot->setBoolValue("built-in-svn-available",svn_built_in_available);
801 void SGTerraSync::shutdown()
806 void SGTerraSync::reinit()
808 // do not reinit when enabled and we're already up and running
809 if ((_terraRoot->getBoolValue("enabled",false))&&
810 (_svnThread->_active && _svnThread->_running))
817 if (_terraRoot->getBoolValue("enabled",false))
819 _svnThread->setSvnServer(_terraRoot->getStringValue("svn-server",""));
820 _svnThread->setSvnDataServer(_terraRoot->getStringValue("svn-data-server",""));
821 _svnThread->setRsyncServer(_terraRoot->getStringValue("rsync-server",""));
822 _svnThread->setLocalDir(_terraRoot->getStringValue("scenery-dir",""));
823 _svnThread->setAllowedErrorCount(_terraRoot->getIntValue("max-errors",5));
824 _svnThread->setUseBuiltin(_terraRoot->getBoolValue("use-built-in-svn",true));
825 _svnThread->setCachePath(SGPath(_terraRoot->getStringValue("cache-path","")));
826 _svnThread->setCacheHits(_terraRoot->getIntValue("cache-hit", 0));
827 _svnThread->setUseSvn(_terraRoot->getBoolValue("use-svn",true));
828 _svnThread->setExtSvnUtility(_terraRoot->getStringValue("ext-svn-utility","svn"));
830 if (_svnThread->start())
832 syncAirportsModels();
833 if (last_lat != NOWHERE && last_lon != NOWHERE)
835 // reschedule most recent position
840 schedulePosition(lat, lon);
845 _stalledNode->setBoolValue(_svnThread->_stalled);
848 void SGTerraSync::bind()
855 _tiedProperties.Tie( _terraRoot->getNode("busy", true), (bool*) &_svnThread->_busy );
856 _tiedProperties.Tie( _terraRoot->getNode("active", true), (bool*) &_svnThread->_active );
857 _tiedProperties.Tie( _terraRoot->getNode("update-count", true), (int*) &_svnThread->_success_count );
858 _tiedProperties.Tie( _terraRoot->getNode("error-count", true), (int*) &_svnThread->_fail_count );
859 _tiedProperties.Tie( _terraRoot->getNode("tile-count", true), (int*) &_svnThread->_updated_tile_count );
860 _tiedProperties.Tie( _terraRoot->getNode("cache-hits", true), (int*) &_svnThread->_cache_hits );
861 _tiedProperties.Tie( _terraRoot->getNode("transfer-rate-bytes-sec", true), (int*) &_svnThread->_transfer_rate );
863 // use kbytes here because propety doesn't support 64-bit and we might conceivably
864 // download more than 2G in a single session
865 _tiedProperties.Tie( _terraRoot->getNode("downloaded-kbytes", true), (int*) &_svnThread->_total_kb_downloaded );
867 _terraRoot->getNode("busy", true)->setAttribute(SGPropertyNode::WRITE,false);
868 _terraRoot->getNode("active", true)->setAttribute(SGPropertyNode::WRITE,false);
869 _terraRoot->getNode("update-count", true)->setAttribute(SGPropertyNode::WRITE,false);
870 _terraRoot->getNode("error-count", true)->setAttribute(SGPropertyNode::WRITE,false);
871 _terraRoot->getNode("tile-count", true)->setAttribute(SGPropertyNode::WRITE,false);
872 _terraRoot->getNode("use-built-in-svn", true)->setAttribute(SGPropertyNode::USERARCHIVE,false);
873 _terraRoot->getNode("use-svn", true)->setAttribute(SGPropertyNode::USERARCHIVE,false);
874 // stalled is used as a signal handler (to connect listeners triggering GUI pop-ups)
875 _stalledNode = _terraRoot->getNode("stalled", true);
876 _stalledNode->setBoolValue(_svnThread->_stalled);
877 _stalledNode->setAttribute(SGPropertyNode::PRESERVE,true);
880 void SGTerraSync::unbind()
883 _tiedProperties.Untie();
888 void SGTerraSync::update(double)
890 static SGBucket bucket;
891 if (_svnThread->isDirty())
893 if (!_svnThread->_active)
895 if (_svnThread->_stalled)
897 SG_LOG(SG_TERRAIN,SG_ALERT,
898 "Automatic scenery download/synchronization stalled. Too many errors.");
902 // not really an alert - just always show this message
903 SG_LOG(SG_TERRAIN,SG_ALERT,
904 "Automatic scenery download/synchronization has stopped.");
906 _stalledNode->setBoolValue(_svnThread->_stalled);
909 while (_svnThread->hasNewTiles())
911 SyncItem next = _svnThread->getNewTile();
913 if ((next._type == SyncItem::Tile) || (next._type == SyncItem::AIData)) {
914 _activeTileDirs.erase(next._dir);
916 } // of freshly synced items
920 bool SGTerraSync::isIdle() {return _svnThread->isIdle();}
922 void SGTerraSync::syncAirportsModels()
924 static const char* bounds = "MZAJKL"; // airport sync order: K-L, A-J, M-Z
925 // note "request" method uses LIFO order, i.e. processes most recent request first
926 for( unsigned i = 0; i < strlen(bounds)/2; i++ )
928 for ( char synced_other = bounds[2*i]; synced_other <= bounds[2*i+1]; synced_other++ )
931 dir << "Airports/" << synced_other;
932 SyncItem w(dir.str(), SyncItem::AirportData);
933 _svnThread->request( w );
937 SyncItem w("Models", SyncItem::SharedModels);
938 _svnThread->request( w );
942 void SGTerraSync::syncArea( int lat, int lon )
944 if ( lat < -90 || lat > 90 || lon < -180 || lon > 180 )
947 int baselat, baselon;
950 int base = (int)(lat / 10);
951 if ( lat == base * 10 ) {
954 baselat = (base - 1) * 10;
958 baselat = (int)(lat / 10) * 10;
962 int base = (int)(lon / 10);
963 if ( lon == base * 10 ) {
966 baselon = (base - 1) * 10;
970 baselon = (int)(lon / 10) * 10;
976 << EW << setw(3) << abs(baselon) << NS << setw(2) << abs(baselat) << "/"
977 << EW << setw(3) << abs(lon) << NS << setw(2) << abs(lat);
979 syncAreaByPath(dir.str());
982 void SGTerraSync::syncAreaByPath(const std::string& aPath)
984 const char* terrainobjects[3] = { "Terrain/", "Objects/", 0 };
985 for (const char** tree = &terrainobjects[0]; *tree; tree++)
987 std::string dir = string(*tree) + aPath;
988 if (_activeTileDirs.find(dir) != _activeTileDirs.end()) {
992 _activeTileDirs.insert(dir);
993 SyncItem w(dir, SyncItem::Tile);
994 _svnThread->request( w );
999 void SGTerraSync::syncAreas( int lat, int lon, int lat_dir, int lon_dir )
1001 if ( lat_dir == 0 && lon_dir == 0 ) {
1003 // do surrounding 8 1x1 degree areas.
1004 for ( int i = lat - 1; i <= lat + 1; ++i ) {
1005 for ( int j = lon - 1; j <= lon + 1; ++j ) {
1006 if ( i != lat || j != lon ) {
1012 if ( lat_dir != 0 ) {
1013 syncArea( lat + lat_dir, lon - 1 );
1014 syncArea( lat + lat_dir, lon + 1 );
1015 syncArea( lat + lat_dir, lon );
1017 if ( lon_dir != 0 ) {
1018 syncArea( lat - 1, lon + lon_dir );
1019 syncArea( lat + 1, lon + lon_dir );
1020 syncArea( lat, lon + lon_dir );
1024 // do current 1x1 degree area first
1025 syncArea( lat, lon );
1028 bool SGTerraSync::scheduleTile(const SGBucket& bucket)
1030 std::string basePath = bucket.gen_base_path();
1031 syncAreaByPath(basePath);
1035 bool SGTerraSync::schedulePosition(int lat, int lon)
1039 // Ignore messages where the location does not change
1040 if ( lat != last_lat || lon != last_lon )
1042 if (_svnThread->_running)
1046 if ( last_lat != NOWHERE && last_lon != NOWHERE )
1048 int dist = lat - last_lat;
1051 lat_dir = dist / abs(dist);
1057 dist = lon - last_lon;
1060 lon_dir = dist / abs(dist);
1067 SG_LOG(SG_TERRAIN,SG_DEBUG, "Scenery update for " <<
1068 "lat = " << lat << ", lon = " << lon <<
1069 ", lat_dir = " << lat_dir << ", " <<
1070 "lon_dir = " << lon_dir);
1072 syncAreas( lat, lon, lat_dir, lon_dir );
1082 void SGTerraSync::reposition()
1084 last_lat = last_lon = NOWHERE;
1087 bool SGTerraSync::isTileDirPending(const std::string& sceneryDir) const
1089 if (!_svnThread->_running) {
1093 const char* terrainobjects[3] = { "Terrain/", "Objects/", 0 };
1094 for (const char** tree = &terrainobjects[0]; *tree; tree++) {
1095 string s = *tree + sceneryDir;
1096 if (_activeTileDirs.find(s) != _activeTileDirs.end()) {
1104 void SGTerraSync::scheduleDataDir(const std::string& dataDir)
1106 if (_activeTileDirs.find(dataDir) != _activeTileDirs.end()) {
1110 _activeTileDirs.insert(dataDir);
1111 SyncItem w(dataDir, SyncItem::AIData);
1112 _svnThread->request( w );
1116 bool SGTerraSync::isDataDirPending(const std::string& dataDir) const
1118 if (!_svnThread->_running) {
1122 return (_activeTileDirs.find(dataDir) != _activeTileDirs.end());