bug 225:

Do not reset while reader thread reads from BeamletBuffer.

Appl/CEP/CS1/CS1_IONProc/src/BeamletBuffer.cc

@@ -167,6 +167,9 @@ void BeamletBuffer::resetCurrentTimeStamp(const TimeStamp &newTimeStamp)
 
   if (!aligned(itsCurrentI, itsNrTimesPerPacket)) {
     // RSP board reset?  Recompute itsOffset and clear the entire buffer.
+
+    itsLockedRanges.lock(0, itsSize, itsSize); // avoid reset while other thread reads
+
     itsOffset = - (itsCurrentI % itsNrTimesPerPacket);
     itsCurrentI = mapTime2Index(newTimeStamp);
 
@@ -174,6 +177,8 @@ void BeamletBuffer::resetCurrentTimeStamp(const TimeStamp &newTimeStamp)
     itsValidData.reset();
     pthread_mutex_unlock(&itsValidDataMutex);
 
+    itsLockedRanges.unlock(0, itsSize, itsSize);
+
     std::clog << "reset BeamletBuffer" << std::endl;
   }
 }