lib/dvb/epgcache.cpp

   1 #include <lib/dvb/epgcache.h>
   2 #include <lib/dvb/dvb.h>
   3
   4 #undef EPG_DEBUG
   5
   6 #include <time.h>
   7 #include <unistd.h>  // for usleep
   8 #include <sys/vfs.h> // for statfs
   9 // #include <libmd5sum.h>
  10 #include <lib/base/eerror.h>
  11
  12 int eventData::CacheSize=0;
  13 descriptorMap eventData::descriptors;
  14 __u8 eventData::data[4108];
  15 extern const uint32_t crc32_table[256];
  16
  17 eventData::eventData(const eit_event_struct* e, int size, int type)
  18         :ByteSize(size&0xFF), type(type&0xFF)
  19 {
  20         if (!e)
  21                 return;
  22
  23         __u32 descr[65];
  24         __u32 *pdescr=descr;
  25
  26         __u8 *data = (__u8*)e;
  27         int ptr=10;
  28         int descriptors_length = (data[ptr++]&0x0F) << 8;
  29         descriptors_length |= data[ptr++];
  30         while ( descriptors_length > 0 )
  31         {
  32                 __u8 *descr = data+ptr;
  33                 int descr_len = descr[1]+2;
  34
  35                 __u32 crc = 0;
  36                 int cnt=0;
  37                 while(cnt++ < descr_len)
  38                         crc = (crc << 8) ^ crc32_table[((crc >> 24) ^ data[ptr++]) & 0xFF];
  39
  40                 descriptorMap::iterator it =
  41                         descriptors.find(crc);
  42                 if ( it == descriptors.end() )
  43                 {
  44                         CacheSize+=descr_len;
  45                         __u8 *d = new __u8[descr_len];
  46                         memcpy(d, descr, descr_len);
  47                         descriptors[crc] = descriptorPair(1, d);
  48                 }
  49                 else
  50                         ++it->second.first;
  51
  52                 *pdescr++=crc;
  53                 descriptors_length -= descr_len;
  54         }
  55         ByteSize = 12+((pdescr-descr)*4);
  56         EITdata = new __u8[ByteSize];
  57         CacheSize+=ByteSize;
  58         memcpy(EITdata, (__u8*) e, 12);
  59         memcpy(EITdata+12, descr, ByteSize-12);
  60 }
  61
  62 const eit_event_struct* eventData::get() const
  63 {
  64         int pos = 12;
  65         int tmp = ByteSize-12;
  66
  67         memcpy(data, EITdata, 12);
  68         __u32 *p = (__u32*)(EITdata+12);
  69         while(tmp>0)
  70         {
  71                 descriptorMap::iterator it =
  72                         descriptors.find(*p++);
  73                 if ( it != descriptors.end() )
  74                 {
  75                         int b = it->second.second[1]+2;
  76                         memcpy(data+pos, it->second.second, b );
  77                         pos += b;
  78                 }
  79                 tmp-=4;
  80         }
  81
  82         return (const eit_event_struct*)data;
  83 }
  84
  85 eventData::~eventData()
  86 {
  87         if ( ByteSize )
  88         {
  89                 CacheSize-=ByteSize;
  90                 ByteSize-=12;
  91                 __u32 *d = (__u32*)(EITdata+12);
  92                 while(ByteSize)
  93                 {
  94                         descriptorMap::iterator it =
  95                                 descriptors.find(*d++);
  96                         if ( it != descriptors.end() )
  97                         {
  98                                 descriptorPair &p = it->second;
  99                                 if (!--p.first) // no more used descriptor
 100                                 {
 101                                         CacheSize -= it->second.second[1];
 102                                         delete [] it->second.second;    // free descriptor memory
 103                                         descriptors.erase(it);  // remove entry from descriptor map
 104                                 }
 105                         }
 106                         ByteSize-=4;
 107                 }
 108                 delete [] EITdata;
 109         }
 110 }
 111
 112 void eventData::load(FILE *f)
 113 {
 114         int size=0;
 115         int id=0;
 116         __u8 header[2];
 117         descriptorPair p;
 118         fread(&size, sizeof(int), 1, f);
 119         while(size)
 120         {
 121                 fread(&id, sizeof(__u32), 1, f);
 122                 fread(&p.first, sizeof(int), 1, f);
 123                 fread(header, 2, 1, f);
 124                 int bytes = header[1]+2;
 125                 p.second = new __u8[bytes];
 126                 p.second[0] = header[0];
 127                 p.second[1] = header[1];
 128                 fread(p.second+2, bytes-2, 1, f);
 129                 descriptors[id]=p;
 130                 --size;
 131                 CacheSize+=bytes;
 132         }
 133 }
 134
 135 void eventData::save(FILE *f)
 136 {
 137         int size=descriptors.size();
 138         descriptorMap::iterator it(descriptors.begin());
 139         fwrite(&size, sizeof(int), 1, f);
 140         while(size)
 141         {
 142                 fwrite(&it->first, sizeof(__u32), 1, f);
 143                 fwrite(&it->second.first, sizeof(int), 1, f);
 144                 fwrite(it->second.second, it->second.second[1]+2, 1, f);
 145                 ++it;
 146                 --size;
 147         }
 148 }
 149
 150 eEPGCache* eEPGCache::instance;
 151 pthread_mutex_t eEPGCache::cache_lock=
 152         PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
 153 pthread_mutex_t eEPGCache::channel_map_lock=
 154         PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
 155
 156 DEFINE_REF(eEPGCache)
 157
 158 eEPGCache::eEPGCache()
 159         :messages(this,1), cleanTimer(this)//, paused(0)
 160 {
 161         eDebug("[EPGC] Initialized EPGCache");
 162
 163         CONNECT(messages.recv_msg, eEPGCache::gotMessage);
 164         CONNECT(eDVBLocalTimeHandler::getInstance()->m_timeUpdated, eEPGCache::timeUpdated);
 165         CONNECT(cleanTimer.timeout, eEPGCache::cleanLoop);
 166
 167         ePtr<eDVBResourceManager> res_mgr;
 168         eDVBResourceManager::getInstance(res_mgr);
 169         if (!res_mgr)
 170                 eDebug("[eEPGCache] no resource manager !!!!!!!");
 171         else
 172                 res_mgr->connectChannelAdded(slot(*this,&eEPGCache::DVBChannelAdded), m_chanAddedConn);
 173         instance=this;
 174 }
 175
 176 void eEPGCache::timeUpdated()
 177 {
 178         if ( !thread_running() )
 179         {
 180                 eDebug("[EPGC] time updated.. start EPG Mainloop");
 181                 run();
 182         }
 183         else
 184                 messages.send(Message(Message::timeChanged));
 185 }
 186
 187 void eEPGCache::DVBChannelAdded(eDVBChannel *chan)
 188 {
 189         if ( chan )
 190         {
 191 //              eDebug("[eEPGCache] add channel %p", chan);
 192                 channel_data *data = new channel_data(this);
 193                 data->channel = chan;
 194                 data->prevChannelState = -1;
 195                 singleLock s(channel_map_lock);
 196                 m_knownChannels.insert( std::pair<iDVBChannel*, channel_data* >(chan, data) );
 197                 chan->connectStateChange(slot(*this, &eEPGCache::DVBChannelStateChanged), data->m_stateChangedConn);
 198         }
 199 }
 200
 201 void eEPGCache::DVBChannelRunning(iDVBChannel *chan)
 202 {
 203         singleLock s(channel_map_lock);
 204         channelMapIterator it =
 205                 m_knownChannels.find(chan);
 206         if ( it == m_knownChannels.end() )
 207                 eDebug("[eEPGCache] will start non existing channel %p !!!", chan);
 208         else
 209         {
 210                 channel_data &data = *it->second;
 211                 ePtr<eDVBResourceManager> res_mgr;
 212                 if ( eDVBResourceManager::getInstance( res_mgr ) )
 213                         eDebug("[eEPGCache] no res manager!!");
 214                 else
 215                 {
 216                         ePtr<iDVBDemux> demux;
 217                         if ( data.channel->getDemux(demux, 0) )
 218                         {
 219                                 eDebug("[eEPGCache] no demux!!");
 220                                 return;
 221                         }
 222                         else
 223                         {
 224                                 RESULT res = demux->createSectionReader( this, data.m_NowNextReader );
 225                                 if ( res )
 226                                 {
 227                                         eDebug("[eEPGCache] couldnt initialize nownext reader!!");
 228                                         return;
 229                                 }
 230
 231                                 res = demux->createSectionReader( this, data.m_ScheduleReader );
 232                                 if ( res )
 233                                 {
 234                                         eDebug("[eEPGCache] couldnt initialize schedule reader!!");
 235                                         return;
 236                                 }
 237
 238                                 res = demux->createSectionReader( this, data.m_ScheduleOtherReader );
 239                                 if ( res )
 240                                 {
 241                                         eDebug("[eEPGCache] couldnt initialize schedule other reader!!");
 242                                         return;
 243                                 }
 244
 245                                 messages.send(Message(Message::startChannel, chan));
 246                                 // -> gotMessage -> changedService
 247                         }
 248                 }
 249         }
 250 }
 251
 252 void eEPGCache::DVBChannelStateChanged(iDVBChannel *chan)
 253 {
 254         channelMapIterator it =
 255                 m_knownChannels.find(chan);
 256         if ( it != m_knownChannels.end() )
 257         {
 258                 int state=0;
 259                 chan->getState(state);
 260                 if ( it->second->prevChannelState != state )
 261                 {
 262                         switch (state)
 263                         {
 264                                 case iDVBChannel::state_ok:
 265                                 {
 266                                         eDebug("[eEPGCache] channel %p running", chan);
 267                                         DVBChannelRunning(chan);
 268                                         break;
 269                                 }
 270                                 case iDVBChannel::state_release:
 271                                 {
 272                                         eDebug("[eEPGCache] remove channel %p", chan);
 273                                         messages.send(Message(Message::leaveChannel, chan));
 274                                         while(!it->second->can_delete)
 275                                                 usleep(1000);
 276                                         delete it->second;
 277                                         m_knownChannels.erase(it);
 278                                         // -> gotMessage -> abortEPG
 279                                         break;
 280                                 }
 281                                 default: // ignore all other events
 282                                         return;
 283                         }
 284                         it->second->prevChannelState = state;
 285                 }
 286         }
 287 }
 288
 289 void eEPGCache::sectionRead(const __u8 *data, int source, channel_data *channel)
 290 {
 291         eit_t *eit = (eit_t*) data;
 292
 293         int len=HILO(eit->section_length)-1;//+3-4;
 294         int ptr=EIT_SIZE;
 295         if ( ptr >= len )
 296                 return;
 297
 298         // This fixed the EPG on the Multichoice irdeto systems
 299         // the EIT packet is non-compliant.. their EIT packet stinks
 300         if ( data[ptr-1] < 0x40 )
 301                 --ptr;
 302
 303         uniqueEPGKey service( HILO(eit->service_id), HILO(eit->original_network_id), HILO(eit->transport_stream_id) );
 304         eit_event_struct* eit_event = (eit_event_struct*) (data+ptr);
 305         int eit_event_size;
 306         int duration;
 307
 308         time_t TM = parseDVBtime( eit_event->start_time_1, eit_event->start_time_2,     eit_event->start_time_3, eit_event->start_time_4, eit_event->start_time_5);
 309         time_t now = time(0)+eDVBLocalTimeHandler::getInstance()->difference();
 310
 311         if ( TM != 3599 && TM > -1)
 312                 channel->haveData |= source;
 313
 314         singleLock s(cache_lock);
 315         // hier wird immer eine eventMap zurück gegeben.. entweder eine vorhandene..
 316         // oder eine durch [] erzeugte
 317         std::pair<eventMap,timeMap> &servicemap = eventDB[service];
 318         eventMap::iterator prevEventIt = servicemap.first.end();
 319         timeMap::iterator prevTimeIt = servicemap.second.end();
 320
 321         while (ptr<len)
 322         {
 323                 eit_event_size = HILO(eit_event->descriptors_loop_length)+EIT_LOOP_SIZE;
 324
 325                 duration = fromBCD(eit_event->duration_1)*3600+fromBCD(eit_event->duration_2)*60+fromBCD(eit_event->duration_3);
 326                 TM = parseDVBtime(
 327                         eit_event->start_time_1,
 328                         eit_event->start_time_2,
 329                         eit_event->start_time_3,
 330                         eit_event->start_time_4,
 331                         eit_event->start_time_5);
 332
 333                 if ( TM == 3599 )
 334                         goto next;
 335
 336                 if ( TM != 3599 && (TM+duration < now || TM > now+14*24*60*60) )
 337                         goto next;
 338
 339                 if ( now <= (TM+duration) || TM == 3599 /*NVOD Service*/ )  // old events should not be cached
 340                 {
 341                         __u16 event_id = HILO(eit_event->event_id);
 342 //                      eDebug("event_id is %d sid is %04x", event_id, service.sid);
 343
 344                         eventData *evt = 0;
 345                         int ev_erase_count = 0;
 346                         int tm_erase_count = 0;
 347
 348                         // search in eventmap
 349                         eventMap::iterator ev_it =
 350                                 servicemap.first.find(event_id);
 351
 352                         // entry with this event_id is already exist ?
 353                         if ( ev_it != servicemap.first.end() )
 354                         {
 355                                 if ( source > ev_it->second->type )  // update needed ?
 356                                         goto next; // when not.. the skip this entry
 357
 358                                 // search this event in timemap
 359                                 timeMap::iterator tm_it_tmp =
 360                                         servicemap.second.find(ev_it->second->getStartTime());
 361
 362                                 if ( tm_it_tmp != servicemap.second.end() )
 363                                 {
 364                                         if ( tm_it_tmp->first == TM ) // correct eventData
 365                                         {
 366                                                 // exempt memory
 367                                                 delete ev_it->second;
 368                                                 evt = new eventData(eit_event, eit_event_size, source);
 369                                                 ev_it->second=evt;
 370                                                 tm_it_tmp->second=evt;
 371                                                 goto next;
 372                                         }
 373                                         else
 374                                         {
 375                                                 tm_erase_count++;
 376                                                 // delete the found record from timemap
 377                                                 servicemap.second.erase(tm_it_tmp);
 378                                                 prevTimeIt=servicemap.second.end();
 379                                         }
 380                                 }
 381                         }
 382
 383                         // search in timemap, for check of a case if new time has coincided with time of other event
 384                         // or event was is not found in eventmap
 385                         timeMap::iterator tm_it =
 386                                 servicemap.second.find(TM);
 387
 388                         if ( tm_it != servicemap.second.end() )
 389                         {
 390                                 // i think, if event is not found on eventmap, but found on timemap updating nevertheless demands
 391 #if 0
 392                                 if ( source > tm_it->second->type && tm_erase_count == 0 ) // update needed ?
 393                                         goto next; // when not.. the skip this entry
 394 #endif
 395
 396                                 // search this time in eventmap
 397                                 eventMap::iterator ev_it_tmp =
 398                                         servicemap.first.find(tm_it->second->getEventID());
 399
 400                                 if ( ev_it_tmp != servicemap.first.end() )
 401                                 {
 402                                         ev_erase_count++;
 403                                         // delete the found record from eventmap
 404                                         servicemap.first.erase(ev_it_tmp);
 405                                         prevEventIt=servicemap.first.end();
 406                                 }
 407                         }
 408
 409                         evt = new eventData(eit_event, eit_event_size, source);
 410 #if EPG_DEBUG
 411                         bool consistencyCheck=true;
 412 #endif
 413                         if (ev_erase_count > 0 && tm_erase_count > 0) // 2 different pairs have been removed
 414                         {
 415                                 // exempt memory
 416                                 delete ev_it->second;
 417                                 delete tm_it->second;
 418                                 ev_it->second=evt;
 419                                 tm_it->second=evt;
 420                         }
 421                         else if (ev_erase_count == 0 && tm_erase_count > 0)
 422                         {
 423                                 // exempt memory
 424                                 delete ev_it->second;
 425                                 tm_it=prevTimeIt=servicemap.second.insert( prevTimeIt, std::pair<const time_t, eventData*>( TM, evt ) );
 426                                 ev_it->second=evt;
 427                         }
 428                         else if (ev_erase_count > 0 && tm_erase_count == 0)
 429                         {
 430                                 // exempt memory
 431                                 delete tm_it->second;
 432                                 ev_it=prevEventIt=servicemap.first.insert( prevEventIt, std::pair<const __u16, eventData*>( event_id, evt) );
 433                                 tm_it->second=evt;
 434                         }
 435                         else // added new eventData
 436                         {
 437 #if EPG_DEBUG
 438                                 consistencyCheck=false;
 439 #endif
 440                                 prevEventIt=servicemap.first.insert( prevEventIt, std::pair<const __u16, eventData*>( event_id, evt) );
 441                                 prevTimeIt=servicemap.second.insert( prevTimeIt, std::pair<const time_t, eventData*>( TM, evt ) );
 442                         }
 443 #if EPG_DEBUG
 444                         if ( consistencyCheck )
 445                         {
 446                                 if ( tm_it->second != evt || ev_it->second != evt )
 447                                         eFatal("tm_it->second != ev_it->second");
 448                                 else if ( tm_it->second->getStartTime() != tm_it->first )
 449                                         eFatal("event start_time(%d) non equal timemap key(%d)",
 450                                                 tm_it->second->getStartTime(), tm_it->first );
 451                                 else if ( tm_it->first != TM )
 452                                         eFatal("timemap key(%d) non equal TM(%d)",
 453                                                 tm_it->first, TM);
 454                                 else if ( ev_it->second->getEventID() != ev_it->first )
 455                                         eFatal("event_id (%d) non equal event_map key(%d)",
 456                                                 ev_it->second->getEventID(), ev_it->first);
 457                                 else if ( ev_it->first != event_id )
 458                                         eFatal("eventmap key(%d) non equal event_id(%d)",
 459                                                 ev_it->first, event_id );
 460                         }
 461 #endif
 462                 }
 463 next:
 464 #if EPG_DEBUG
 465                 if ( servicemap.first.size() != servicemap.second.size() )
 466                 {
 467                         FILE *f = fopen("/hdd/event_map.txt", "w+");
 468                         int i=0;
 469                         for (eventMap::iterator it(servicemap.first.begin())
 470                                 ; it != servicemap.first.end(); ++it )
 471                                 fprintf(f, "%d(key %d) -> time %d, event_id %d, data %p\n",
 472                                         i++, (int)it->first, (int)it->second->getStartTime(), (int)it->second->getEventID(), it->second );
 473                         fclose(f);
 474                         f = fopen("/hdd/time_map.txt", "w+");
 475                         i=0;
 476                         for (timeMap::iterator it(servicemap.second.begin())
 477                                 ; it != servicemap.second.end(); ++it )
 478                                         fprintf(f, "%d(key %d) -> time %d, event_id %d, data %p\n",
 479                                                 i++, (int)it->first, (int)it->second->getStartTime(), (int)it->second->getEventID(), it->second );
 480                         fclose(f);
 481
 482                         eFatal("(1)map sizes not equal :( sid %04x tsid %04x onid %04x size %d size2 %d",
 483                                 service.sid, service.tsid, service.onid,
 484                                 servicemap.first.size(), servicemap.second.size() );
 485                 }
 486 #endif
 487                 ptr += eit_event_size;
 488                 eit_event=(eit_event_struct*)(((__u8*)eit_event)+eit_event_size);
 489         }
 490 }
 491
 492 void eEPGCache::flushEPG(const uniqueEPGKey & s)
 493 {
 494         eDebug("[EPGC] flushEPG %d", (int)(bool)s);
 495         singleLock l(cache_lock);
 496         if (s)  // clear only this service
 497         {
 498                 eventCache::iterator it = eventDB.find(s);
 499                 if ( it != eventDB.end() )
 500                 {
 501                         eventMap &evMap = it->second.first;
 502                         timeMap &tmMap = it->second.second;
 503                         tmMap.clear();
 504                         for (eventMap::iterator i = evMap.begin(); i != evMap.end(); ++i)
 505                                 delete i->second;
 506                         evMap.clear();
 507                         eventDB.erase(it);
 508
 509                         // TODO .. search corresponding channel for removed service and remove this channel from lastupdated map
 510                 }
 511         }
 512         else // clear complete EPG Cache
 513         {
 514                 for (eventCache::iterator it(eventDB.begin());
 515                         it != eventDB.end(); ++it)
 516                 {
 517                         eventMap &evMap = it->second.first;
 518                         timeMap &tmMap = it->second.second;
 519                         for (eventMap::iterator i = evMap.begin(); i != evMap.end(); ++i)
 520                                 delete i->second;
 521                         evMap.clear();
 522                         tmMap.clear();
 523                 }
 524                 eventDB.clear();
 525                 channelLastUpdated.clear();
 526                 singleLock m(channel_map_lock);
 527                 for (channelMapIterator it(m_knownChannels.begin()); it != m_knownChannels.end(); ++it)
 528                         it->second->startEPG();
 529         }
 530         eDebug("[EPGC] %i bytes for cache used", eventData::CacheSize);
 531 }
 532
 533 void eEPGCache::cleanLoop()
 534 {
 535         singleLock s(cache_lock);
 536         if (!eventDB.empty())
 537         {
 538                 eDebug("[EPGC] start cleanloop");
 539
 540                 time_t now = time(0)+eDVBLocalTimeHandler::getInstance()->difference();
 541
 542                 for (eventCache::iterator DBIt = eventDB.begin(); DBIt != eventDB.end(); DBIt++)
 543                 {
 544                         for (timeMap::iterator It = DBIt->second.second.begin(); It != DBIt->second.second.end() && It->first < now;)
 545                         {
 546                                 if ( now > (It->first+It->second->getDuration()) )  // outdated normal entry (nvod references to)
 547                                 {
 548                                         // remove entry from eventMap
 549                                         eventMap::iterator b(DBIt->second.first.find(It->second->getEventID()));
 550                                         if ( b != DBIt->second.first.end() )
 551                                         {
 552                                                 // release Heap Memory for this entry   (new ....)
 553 //                                              eDebug("[EPGC] delete old event (evmap)");
 554                                                 DBIt->second.first.erase(b);
 555                                         }
 556
 557                                         // remove entry from timeMap
 558 //                                      eDebug("[EPGC] release heap mem");
 559                                         delete It->second;
 560                                         DBIt->second.second.erase(It++);
 561 //                                      eDebug("[EPGC] delete old event (timeMap)");
 562                                 }
 563                                 else
 564                                         ++It;
 565                         }
 566                 }
 567                 eDebug("[EPGC] stop cleanloop");
 568                 eDebug("[EPGC] %i bytes for cache used", eventData::CacheSize);
 569         }
 570         cleanTimer.start(CLEAN_INTERVAL,true);
 571 }
 572
 573 eEPGCache::~eEPGCache()
 574 {
 575         messages.send(Message::quit);
 576         kill(); // waiting for thread shutdown
 577         singleLock s(cache_lock);
 578         for (eventCache::iterator evIt = eventDB.begin(); evIt != eventDB.end(); evIt++)
 579                 for (eventMap::iterator It = evIt->second.first.begin(); It != evIt->second.first.end(); It++)
 580                         delete It->second;
 581 }
 582
 583 void eEPGCache::gotMessage( const Message &msg )
 584 {
 585         switch (msg.type)
 586         {
 587                 case Message::flush:
 588                         flushEPG(msg.service);
 589                         break;
 590                 case Message::startChannel:
 591                 {
 592                         singleLock s(channel_map_lock);
 593                         channelMapIterator channel =
 594                                 m_knownChannels.find(msg.channel);
 595                         if ( channel != m_knownChannels.end() )
 596                                 channel->second->startChannel();
 597                         break;
 598                 }
 599                 case Message::leaveChannel:
 600                 {
 601                         singleLock s(channel_map_lock);
 602                         channelMapIterator channel =
 603                                 m_knownChannels.find(msg.channel);
 604                         if ( channel != m_knownChannels.end() )
 605                                 channel->second->abortEPG();
 606                         break;
 607                 }
 608                 case Message::quit:
 609                         quit(0);
 610                         break;
 611                 case Message::timeChanged:
 612                         cleanLoop();
 613                         break;
 614                 default:
 615                         eDebug("unhandled EPGCache Message!!");
 616                         break;
 617         }
 618 }
 619
 620 void eEPGCache::thread()
 621 {
 622         nice(4);
 623         load();
 624         cleanLoop();
 625         exec();
 626         save();
 627 }
 628
 629 void eEPGCache::load()
 630 {
 631 #if 0
 632         FILE *f = fopen("/hdd/epg.dat", "r");
 633         if (f)
 634         {
 635                 unsigned char md5_saved[16];
 636                 unsigned char md5[16];
 637                 int size=0;
 638                 int cnt=0;
 639                 bool md5ok=false;
 640                 if (!md5_file("/hdd/epg.dat", 1, md5))
 641                 {
 642                         FILE *f = fopen("/hdd/epg.dat.md5", "r");
 643                         if (f)
 644                         {
 645                                 fread( md5_saved, 16, 1, f);
 646                                 fclose(f);
 647                                 if ( !memcmp(md5_saved, md5, 16) )
 648                                         md5ok=true;
 649                         }
 650                 }
 651                 if ( md5ok )
 652                 {
 653                         char text1[13];
 654                         fread( text1, 13, 1, f);
 655                         if ( !strncmp( text1, "ENIGMA_EPG_V4", 13) )
 656                         {
 657                                 fread( &size, sizeof(int), 1, f);
 658                                 while(size--)
 659                                 {
 660                                         uniqueEPGKey key;
 661                                         eventMap evMap;
 662                                         timeMap tmMap;
 663                                         int size=0;
 664                                         fread( &key, sizeof(uniqueEPGKey), 1, f);
 665                                         fread( &size, sizeof(int), 1, f);
 666                                         while(size--)
 667                                         {
 668                                                 __u8 len=0;
 669                                                 __u8 type=0;
 670                                                 eventData *event=0;
 671                                                 fread( &type, sizeof(__u8), 1, f);
 672                                                 fread( &len, sizeof(__u8), 1, f);
 673                                                 event = new eventData(0, len, type);
 674                                                 event->EITdata = new __u8[len];
 675                                                 eventData::CacheSize+=len;
 676                                                 fread( event->EITdata, len, 1, f);
 677                                                 evMap[ event->getEventID() ]=event;
 678                                                 tmMap[ event->getStartTime() ]=event;
 679                                                 ++cnt;
 680                                         }
 681                                         eventDB[key]=std::pair<eventMap,timeMap>(evMap,tmMap);
 682                                 }
 683                                 eventData::load(f);
 684                                 eDebug("%d events read from /hdd/epg.dat", cnt);
 685                         }
 686                         else
 687                                 eDebug("[EPGC] don't read old epg database");
 688                         fclose(f);
 689                 }
 690         }
 691 #endif
 692 }
 693
 694 void eEPGCache::save()
 695 {
 696 #if 0
 697         struct statfs s;
 698         off64_t tmp;
 699         if (statfs("/hdd", &s)<0)
 700                 tmp=0;
 701         else
 702         {
 703                 tmp=s.f_blocks;
 704                 tmp*=s.f_bsize;
 705         }
 706
 707         // prevent writes to builtin flash
 708         if ( tmp < 1024*1024*50 ) // storage size < 50MB
 709                 return;
 710
 711         // check for enough free space on storage
 712         tmp=s.f_bfree;
 713         tmp*=s.f_bsize;
 714         if ( tmp < (eventData::CacheSize*12)/10 ) // 20% overhead
 715                 return;
 716
 717         FILE *f = fopen("/hdd/epg.dat", "w");
 718         int cnt=0;
 719         if ( f )
 720         {
 721                 const char *text = "ENIGMA_EPG_V4";
 722                 fwrite( text, 13, 1, f );
 723                 int size = eventDB.size();
 724                 fwrite( &size, sizeof(int), 1, f );
 725                 for (eventCache::iterator service_it(eventDB.begin()); service_it != eventDB.end(); ++service_it)
 726                 {
 727                         timeMap &timemap = service_it->second.second;
 728                         fwrite( &service_it->first, sizeof(uniqueEPGKey), 1, f);
 729                         size = timemap.size();
 730                         fwrite( &size, sizeof(int), 1, f);
 731                         for (timeMap::iterator time_it(timemap.begin()); time_it != timemap.end(); ++time_it)
 732                         {
 733                                 __u8 len = time_it->second->ByteSize;
 734                                 fwrite( &time_it->second->type, sizeof(__u8), 1, f );
 735                                 fwrite( &len, sizeof(__u8), 1, f);
 736                                 fwrite( time_it->second->EITdata, len, 1, f);
 737                                 ++cnt;
 738                         }
 739                 }
 740                 eDebug("%d events written to /hdd/epg.dat", cnt);
 741                 eventData::save(f);
 742                 fclose(f);
 743                 unsigned char md5[16];
 744                 if (!md5_file("/hdd/epg.dat", 1, md5))
 745                 {
 746                         FILE *f = fopen("/hdd/epg.dat.md5", "w");
 747                         if (f)
 748                         {
 749                                 fwrite( md5, 16, 1, f);
 750                                 fclose(f);
 751                         }
 752                 }
 753         }
 754 #endif
 755 }
 756
 757 eEPGCache::channel_data::channel_data(eEPGCache *ml)
 758         :cache(ml)
 759         ,abortTimer(ml), zapTimer(ml)
 760         ,state(0), isRunning(0), haveData(0), can_delete(1)
 761 {
 762         CONNECT(zapTimer.timeout, eEPGCache::channel_data::startEPG);
 763         CONNECT(abortTimer.timeout, eEPGCache::channel_data::abortNonAvail);
 764 }
 765
 766 bool eEPGCache::channel_data::finishEPG()
 767 {
 768         if (!isRunning)  // epg ready
 769         {
 770                 eDebug("[EPGC] stop caching events(%d)", time(0)+eDVBLocalTimeHandler::getInstance()->difference());
 771                 zapTimer.start(UPDATE_INTERVAL, 1);
 772                 eDebug("[EPGC] next update in %i min", UPDATE_INTERVAL / 60000);
 773                 for (int i=0; i < 3; ++i)
 774                 {
 775                         seenSections[i].clear();
 776                         calcedSections[i].clear();
 777                 }
 778                 singleLock l(cache->cache_lock);
 779                 cache->channelLastUpdated[channel->getChannelID()] = time(0)+eDVBLocalTimeHandler::getInstance()->difference();
 780                 can_delete=1;
 781                 return true;
 782         }
 783         return false;
 784 }
 785
 786 void eEPGCache::channel_data::startEPG()
 787 {
 788         eDebug("[EPGC] start caching events(%d)", eDVBLocalTimeHandler::getInstance()->difference()+time(0));
 789         state=0;
 790         haveData=0;
 791         can_delete=0;
 792         for (int i=0; i < 3; ++i)
 793         {
 794                 seenSections[i].clear();
 795                 calcedSections[i].clear();
 796         }
 797
 798         eDVBSectionFilterMask mask;
 799         memset(&mask, 0, sizeof(mask));
 800         mask.pid = 0x12;
 801         mask.flags = eDVBSectionFilterMask::rfCRC;
 802
 803         mask.data[0] = 0x4E;
 804         mask.mask[0] = 0xFE;
 805         m_NowNextReader->connectRead(slot(*this, &eEPGCache::channel_data::readData), m_NowNextConn);
 806         m_NowNextReader->start(mask);
 807         isRunning |= NOWNEXT;
 808
 809         mask.data[0] = 0x50;
 810         mask.mask[0] = 0xF0;
 811         m_ScheduleReader->connectRead(slot(*this, &eEPGCache::channel_data::readData), m_ScheduleConn);
 812         m_ScheduleReader->start(mask);
 813         isRunning |= SCHEDULE;
 814
 815         mask.data[0] = 0x60;
 816         mask.mask[0] = 0xF0;
 817         m_ScheduleOtherReader->connectRead(slot(*this, &eEPGCache::channel_data::readData), m_ScheduleOtherConn);
 818         m_ScheduleOtherReader->start(mask);
 819         isRunning |= SCHEDULE_OTHER;
 820
 821         abortTimer.start(7000,true);
 822 }
 823
 824 void eEPGCache::channel_data::abortNonAvail()
 825 {
 826         if (!state)
 827         {
 828                 if ( !(haveData&eEPGCache::NOWNEXT) && (isRunning&eEPGCache::NOWNEXT) )
 829                 {
 830                         eDebug("[EPGC] abort non avail nownext reading");
 831                         isRunning &= ~eEPGCache::NOWNEXT;
 832                         m_NowNextReader->stop();
 833                         m_NowNextConn=0;
 834                 }
 835                 if ( !(haveData&eEPGCache::SCHEDULE) && (isRunning&eEPGCache::SCHEDULE) )
 836                 {
 837                         eDebug("[EPGC] abort non avail schedule reading");
 838                         isRunning &= ~SCHEDULE;
 839                         m_ScheduleReader->stop();
 840                         m_ScheduleConn=0;
 841                 }
 842                 if ( !(haveData&eEPGCache::SCHEDULE_OTHER) && (isRunning&eEPGCache::SCHEDULE_OTHER) )
 843                 {
 844                         eDebug("[EPGC] abort non avail schedule_other reading");
 845                         isRunning &= ~SCHEDULE_OTHER;
 846                         m_ScheduleOtherReader->stop();
 847                         m_ScheduleOtherConn=0;
 848                 }
 849                 if ( isRunning )
 850                         abortTimer.start(90000, true);
 851                 else
 852                 {
 853                         ++state;
 854                         for (int i=0; i < 3; ++i)
 855                         {
 856                                 seenSections[i].clear();
 857                                 calcedSections[i].clear();
 858                         }
 859                         can_delete=1;
 860                 }
 861         }
 862         ++state;
 863 }
 864
 865 void eEPGCache::channel_data::startChannel()
 866 {
 867         updateMap::iterator It = cache->channelLastUpdated.find( channel->getChannelID() );
 868
 869         int update = ( It != cache->channelLastUpdated.end() ? ( UPDATE_INTERVAL - ( (time(0)+eDVBLocalTimeHandler::getInstance()->difference()-It->second) * 1000 ) ) : ZAP_DELAY );
 870
 871         if (update < ZAP_DELAY)
 872                 update = ZAP_DELAY;
 873
 874         zapTimer.start(update, 1);
 875         if (update >= 60000)
 876                 eDebug("[EPGC] next update in %i min", update/60000);
 877         else if (update >= 1000)
 878                 eDebug("[EPGC] next update in %i sec", update/1000);
 879 }
 880
 881 void eEPGCache::channel_data::abortEPG()
 882 {
 883         for (int i=0; i < 3; ++i)
 884         {
 885                 seenSections[i].clear();
 886                 calcedSections[i].clear();
 887         }
 888         abortTimer.stop();
 889         zapTimer.stop();
 890         if (isRunning)
 891         {
 892                 eDebug("[EPGC] abort caching events !!");
 893                 if (isRunning & eEPGCache::SCHEDULE)
 894                 {
 895                         isRunning &= ~eEPGCache::SCHEDULE;
 896                         m_ScheduleReader->stop();
 897                         m_ScheduleConn=0;
 898                 }
 899                 if (isRunning & eEPGCache::NOWNEXT)
 900                 {
 901                         isRunning &= ~eEPGCache::NOWNEXT;
 902                         m_NowNextReader->stop();
 903                         m_NowNextConn=0;
 904                 }
 905                 if (isRunning & SCHEDULE_OTHER)
 906                 {
 907                         isRunning &= ~eEPGCache::SCHEDULE_OTHER;
 908                         m_ScheduleOtherReader->stop();
 909                         m_ScheduleOtherConn=0;
 910                 }
 911                 can_delete=1;
 912         }
 913 }
 914
 915 void eEPGCache::channel_data::readData( const __u8 *data)
 916 {
 917         if (!data)
 918                 eDebug("get Null pointer from section reader !!");
 919         else
 920         {
 921                 int source;
 922                 int map;
 923                 iDVBSectionReader *reader=NULL;
 924                 switch(data[0])
 925                 {
 926                         case 0x4E ... 0x4F:
 927                                 reader=m_NowNextReader;
 928                                 source=eEPGCache::NOWNEXT;
 929                                 map=0;
 930                                 break;
 931                         case 0x50 ... 0x5F:
 932                                 reader=m_ScheduleReader;
 933                                 source=eEPGCache::SCHEDULE;
 934                                 map=1;
 935                                 break;
 936                         case 0x60 ... 0x6F:
 937                                 reader=m_ScheduleOtherReader;
 938                                 source=eEPGCache::SCHEDULE_OTHER;
 939                                 map=2;
 940                                 break;
 941                         default:
 942                                 eDebug("[EPGC] unknown table_id !!!");
 943                                 return;
 944                 }
 945                 tidMap &seenSections = this->seenSections[map];
 946                 tidMap &calcedSections = this->calcedSections[map];
 947                 if ( state == 1 && calcedSections == seenSections || state > 1 )
 948                 {
 949                         eDebugNoNewLine("[EPGC] ");
 950                         switch (source)
 951                         {
 952                                 case eEPGCache::NOWNEXT:
 953                                         m_NowNextConn=0;
 954                                         eDebugNoNewLine("nownext");
 955                                         break;
 956                                 case eEPGCache::SCHEDULE:
 957                                         m_ScheduleConn=0;
 958                                         eDebugNoNewLine("schedule");
 959                                         break;
 960                                 case eEPGCache::SCHEDULE_OTHER:
 961                                         m_ScheduleOtherConn=0;
 962                                         eDebugNoNewLine("schedule other");
 963                                         break;
 964                                 default: eDebugNoNewLine("unknown");break;
 965                         }
 966                         eDebug(" finished(%d)", time(0)+eDVBLocalTimeHandler::getInstance()->difference());
 967                         if ( reader )
 968                                 reader->stop();
 969                         isRunning &= ~source;
 970                         if (!isRunning)
 971                                 finishEPG();
 972                 }
 973                 else
 974                 {
 975                         eit_t *eit = (eit_t*) data;
 976                         __u32 sectionNo = data[0] << 24;
 977                         sectionNo |= data[3] << 16;
 978                         sectionNo |= data[4] << 8;
 979                         sectionNo |= eit->section_number;
 980
 981                         tidMap::iterator it =
 982                                 seenSections.find(sectionNo);
 983
 984                         if ( it == seenSections.end() )
 985                         {
 986                                 seenSections.insert(sectionNo);
 987                                 calcedSections.insert(sectionNo);
 988                                 __u32 tmpval = sectionNo & 0xFFFFFF00;
 989                                 __u8 incr = source == NOWNEXT ? 1 : 8;
 990                                 for ( int i = 0; i <= eit->last_section_number; i+=incr )
 991                                 {
 992                                         if ( i == eit->section_number )
 993                                         {
 994                                                 for (int x=i; x <= eit->segment_last_section_number; ++x)
 995                                                         calcedSections.insert(tmpval|(x&0xFF));
 996                                         }
 997                                         else
 998                                                 calcedSections.insert(tmpval|(i&0xFF));
 999                                 }
1000                                 cache->sectionRead(data, source, this);
1001                         }
1002                 }
1003         }
1004 }
1005
1006 RESULT eEPGCache::lookupEventTime(const eServiceReference &service, time_t t, const eventData *&result )
1007 // if t == 0 we search the current event...
1008 {
1009         singleLock s(cache_lock);
1010         uniqueEPGKey key(service);
1011
1012         // check if EPG for this service is ready...
1013         eventCache::iterator It = eventDB.find( key );
1014         if ( It != eventDB.end() && !It->second.first.empty() ) // entrys cached ?
1015         {
1016                 if (!t)
1017                         t = time(0)+eDVBLocalTimeHandler::getInstance()->difference();
1018                 timeMap::iterator i = It->second.second.lower_bound(t);  // find > or equal
1019                 if ( i != It->second.second.end() )
1020                 {
1021                         if ( i->second->getStartTime() != t )
1022                         {
1023                                 timeMap::iterator x = i;
1024                                 --x;
1025                                 if ( x != It->second.second.end() )
1026                                 {
1027                                         time_t start_time = x->second->getStartTime();
1028                                         if (t < start_time)
1029                                                 return -1;
1030                                         if (t > (start_time+x->second->getDuration()))
1031                                                 return -1;
1032                                         i = x;
1033                                 }
1034                                 else
1035                                         return -1;
1036                         }
1037                         result = i->second;
1038                         return 0;
1039                 }
1040         }
1041         return -1;
1042 }
1043
1044 RESULT eEPGCache::lookupEventTime(const eServiceReference &service, time_t t, const eit_event_struct *&result )
1045 {
1046         singleLock s(cache_lock);
1047         const eventData *data=0;
1048         RESULT ret = lookupEventTime(service, t, data);
1049         if ( !ret && data )
1050                 result = data->get();
1051         return ret;
1052 }
1053
1054 RESULT eEPGCache::lookupEventTime(const eServiceReference &service, time_t t, Event *& result )
1055 {
1056         singleLock s(cache_lock);
1057         const eventData *data=0;
1058         RESULT ret = lookupEventTime(service, t, data);
1059         if ( !ret && data )
1060                 result = new Event((uint8_t*)data->get());
1061         return ret;
1062 }
1063
1064 RESULT eEPGCache::lookupEventTime(const eServiceReference &service, time_t t, ePtr<eServiceEvent> &result )
1065 {
1066         singleLock s(cache_lock);
1067         const eventData *data=0;
1068         RESULT ret = lookupEventTime(service, t, data);
1069         if ( !ret && data )
1070         {
1071                 Event ev((uint8_t*)data->get());
1072                 result = new eServiceEvent();
1073                 const eServiceReferenceDVB &ref = (const eServiceReferenceDVB&)service;
1074                 ret = result->parseFrom(&ev, (ref.getTransportStreamID().get()<<16)|ref.getOriginalNetworkID().get());
1075         }
1076         return ret;
1077 }
1078
1079 RESULT eEPGCache::lookupEventId(const eServiceReference &service, int event_id, const eventData *&result )
1080 {
1081         singleLock s(cache_lock);
1082         uniqueEPGKey key( service );
1083
1084         eventCache::iterator It = eventDB.find( key );
1085         if ( It != eventDB.end() && !It->second.first.empty() ) // entrys cached?
1086         {
1087                 eventMap::iterator i( It->second.first.find( event_id ));
1088                 if ( i != It->second.first.end() )
1089                 {
1090                         result = i->second;
1091                         return 0;
1092                 }
1093                 else
1094                 {
1095                         result = 0;
1096                         eDebug("event %04x not found in epgcache", event_id);
1097                 }
1098         }
1099         return -1;
1100 }
1101
1102 RESULT eEPGCache::lookupEventId(const eServiceReference &service, int event_id, const eit_event_struct *&result)
1103 {
1104         singleLock s(cache_lock);
1105         const eventData *data=0;
1106         RESULT ret = lookupEventId(service, event_id, data);
1107         if ( !ret && data )
1108                 result = data->get();
1109         return ret;
1110 }
1111
1112 RESULT eEPGCache::lookupEventId(const eServiceReference &service, int event_id, Event *& result)
1113 {
1114         singleLock s(cache_lock);
1115         const eventData *data=0;
1116         RESULT ret = lookupEventId(service, event_id, data);
1117         if ( !ret && data )
1118                 result = new Event((uint8_t*)data->get());
1119         return ret;
1120 }
1121
1122 RESULT eEPGCache::lookupEventId(const eServiceReference &service, int event_id, ePtr<eServiceEvent> &result)
1123 {
1124         singleLock s(cache_lock);
1125         const eventData *data=0;
1126         RESULT ret = lookupEventId(service, event_id, data);
1127         if ( !ret && data )
1128         {
1129                 Event ev((uint8_t*)data->get());
1130                 result = new eServiceEvent();
1131                 const eServiceReferenceDVB &ref = (const eServiceReferenceDVB&)service;
1132                 ret = result->parseFrom(&ev, (ref.getTransportStreamID().get()<<16)|ref.getOriginalNetworkID().get());
1133         }
1134         return ret;
1135 }
1136
1137 RESULT eEPGCache::startTimeQuery(const eServiceReference &service, time_t begin, int minutes)
1138 {
1139         eventCache::iterator It = eventDB.find( service );
1140         if ( It != eventDB.end() && It->second.second.size() )
1141         {
1142                 m_timemap_end = minutes != -1 ? It->second.second.upper_bound(begin+minutes*60) : It->second.second.end();
1143                 if ( begin != -1 )
1144                 {
1145                         m_timemap_cursor = It->second.second.lower_bound(begin);
1146                         if ( m_timemap_cursor != It->second.second.end() )
1147                         {
1148                                 if ( m_timemap_cursor->second->getStartTime() != begin )
1149                                 {
1150                                         timeMap::iterator x = m_timemap_cursor;
1151                                         --x;
1152                                         if ( x != It->second.second.end() )
1153                                         {
1154                                                 time_t start_time = x->second->getStartTime();
1155                                                 if ( begin > start_time && begin < (start_time+x->second->getDuration()))
1156                                                         m_timemap_cursor = x;
1157                                         }
1158                                 }
1159                         }
1160                 }
1161                 else
1162                         m_timemap_cursor = It->second.second.begin();
1163                 const eServiceReferenceDVB &ref = (const eServiceReferenceDVB&)service;
1164                 currentQueryTsidOnid = (ref.getTransportStreamID().get()<<16) | ref.getOriginalNetworkID().get();
1165                 return 0;
1166         }
1167         return -1;
1168 }
1169
1170 RESULT eEPGCache::getNextTimeEntry(const eventData *& result)
1171 {
1172         if ( m_timemap_cursor != m_timemap_end )
1173         {
1174                 result = m_timemap_cursor++->second;
1175                 return 0;
1176         }
1177         return -1;
1178 }
1179
1180 RESULT eEPGCache::getNextTimeEntry(const eit_event_struct *&result)
1181 {
1182         if ( m_timemap_cursor != m_timemap_end )
1183         {
1184                 result = m_timemap_cursor++->second->get();
1185                 return 0;
1186         }
1187         return -1;
1188 }
1189
1190 RESULT eEPGCache::getNextTimeEntry(Event *&result)
1191 {
1192         if ( m_timemap_cursor != m_timemap_end )
1193         {
1194                 result = new Event((uint8_t*)m_timemap_cursor++->second->get());
1195                 return 0;
1196         }
1197         return -1;
1198 }
1199
1200 RESULT eEPGCache::getNextTimeEntry(ePtr<eServiceEvent> &result)
1201 {
1202         if ( m_timemap_cursor != m_timemap_end )
1203         {
1204                 Event ev((uint8_t*)m_timemap_cursor++->second->get());
1205                 result = new eServiceEvent();
1206                 return result->parseFrom(&ev, currentQueryTsidOnid);
1207         }
1208         return -1;
1209 }