The function cEpgHandlers::BeginSegmentTransfer() is now boolean

CONTRIBUTORS

@@ -2618,6 +2618,7 @@ J
  for adding HandledExternally() to the EPG handler interface
  for adding IsUpdate() to the EPG handler interface
  for adding Begin/EndSegmentTransfer() to the EPG handler interface
+ for making cEpgHandlers::BeginSegmentTransfer() boolean
 
 Peter Pinnau <vdr@unterbrecher.de>
  for reporting that 'uint32_t' requires including stdint.h in font.h on some systems

HISTORY

@@ -8925,8 +8925,10 @@ Video Disk Recorder Revision History
 - Now stopping any ongoing recordings before stopping the plugins, to avoid
   a crash when stopping VDR while recording.
 
-2017-03-30: Version 2.3.4
+2017-03-31: Version 2.3.4
 
 - The functionality of HandleRemoteModifications(), which synchronizes changes to
   timers between peer VDR machines, has been moved to timers.[ch] and renamed to
   HandleRemoteTimerModifications(). It now also handles deleting remote timers.
+- The function cEpgHandlers::BeginSegmentTransfer() is now boolean (thanks to
+  Jörg Wendel). See the description in epg.h for the meaning of the return value.

eit.c

@@ -8,7 +8,7 @@
  * Robert Schneider <Robert.Schneider@web.de> and Rolf Hakenes <hakenes@hippomi.de>.
  * Adapted to 'libsi' for VDR 1.3.0 by Marcel Wiesweg <marcel.wiesweg@gmx.de>.
  *
- * $Id: eit.c 4.1 2015/08/23 10:43:36 kls Exp $
+ * $Id: eit.c 4.2 2017/03/31 15:16:46 kls Exp $
  */
 
 #include "eit.h"
@@ -67,8 +67,13 @@ cEIT::cEIT(cSectionSyncerHash &SectionSyncerHash, int Source, u_char Tid, const
      return;
      }
 
+  if (!EpgHandlers.BeginSegmentTransfer(Channel)) {
+     SchedulesStateKey.Remove(false);
+     ChannelsStateKey.Remove(false);
+     return;
+     }
+
   bool ChannelsModified = false;
-  EpgHandlers.BeginSegmentTransfer(Channel);
   bool handledExternally = EpgHandlers.HandledExternally(Channel);
   cSchedule *pSchedule = (cSchedule *)Schedules->GetSchedule(Channel, true);
 

epg.c

@@ -7,7 +7,7 @@
  * Original version (as used in VDR before 1.3.0) written by
  * Robert Schneider <Robert.Schneider@web.de> and Rolf Hakenes <hakenes@hippomi.de>.
  *
- * $Id: epg.c 4.2 2015/09/10 10:58:19 kls Exp $
+ * $Id: epg.c 4.3 2017/03/31 15:16:46 kls Exp $
  */
 
 #include "epg.h"
@@ -1527,12 +1527,13 @@ void cEpgHandlers::DropOutdated(cSchedule *Schedule, time_t SegmentStart, time_t
   Schedule->DropOutdated(SegmentStart, SegmentEnd, TableID, Version);
 }
 
-void cEpgHandlers::BeginSegmentTransfer(const cChannel *Channel)
+bool cEpgHandlers::BeginSegmentTransfer(const cChannel *Channel)
 {
   for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
-      if (eh->BeginSegmentTransfer(Channel, false))
+      if (!eh->BeginSegmentTransfer(Channel, false))
-         return;
+         return false;
       }
+  return true;
 }
 
 void cEpgHandlers::EndSegmentTransfer(bool Modified)

epg.h

@@ -7,7 +7,7 @@
  * Original version (as used in VDR before 1.3.0) written by
  * Robert Schneider <Robert.Schneider@web.de> and Rolf Hakenes <hakenes@hippomi.de>.
  *
- * $Id: epg.h 4.1 2015/08/09 11:25:04 kls Exp $
+ * $Id: epg.h 4.2 2017/03/31 15:24:35 kls Exp $
  */
 
 #ifndef __EPG_H
@@ -284,6 +284,9 @@ public:
   virtual bool BeginSegmentTransfer(const cChannel *Channel, bool Dummy) { return false; } // TODO remove obsolete Dummy
           ///< Called directly after IgnoreChannel() before any other handler method is called.
           ///< Designed to give handlers the possibility to prepare a database transaction.
+          ///< If any EPG handler returns false in this function, it is assumed that
+          ///< the EPG for the given Channel has to be handled later due to some transaction problems,
+          ///> therefore the processing will aborted.
           ///< Dummy is for backward compatibility and may be removed in a future version.
   virtual bool EndSegmentTransfer(bool Modified, bool Dummy) { return false; } // TODO remove obsolete Dummy
           ///< Called after the segment data has been processed.
@@ -311,7 +314,7 @@ public:
   void HandleEvent(cEvent *Event);
   void SortSchedule(cSchedule *Schedule);
   void DropOutdated(cSchedule *Schedule, time_t SegmentStart, time_t SegmentEnd, uchar TableID, uchar Version);
-  void BeginSegmentTransfer(const cChannel *Channel);
+  bool BeginSegmentTransfer(const cChannel *Channel);
   void EndSegmentTransfer(bool Modified);
   };