X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=RAW%2FAliRawEventHeaderBase.cxx;h=dccd36a8099fef98e13417c52fe33a5d72f7e944;hb=936875a40225e7b2bd9a99c1f0cfeea07f151740;hp=b70c775c6ec894ea71150e0433b089ef01458c40;hpb=00872461b7fb4c9fd2b84cbf7a4a0022bc18eabe;p=u%2Fmrichter%2FAliRoot.git

diff --git a/RAW/AliRawEventHeaderBase.cxx b/RAW/AliRawEventHeaderBase.cxx
index b70c775c6ec..dccd36a8099 100644
--- a/RAW/AliRawEventHeaderBase.cxx
+++ b/RAW/AliRawEventHeaderBase.cxx
@@ -49,7 +49,8 @@ fVersion(0),
 fExtendedDataSize(0),
 fExtendedAllocSize(0),
 fExtendedData(NULL),
-fIsSwapped(kFALSE)
+fIsSwapped(kFALSE),
+fHeaderSize(0)
 {
   // Default constructor
 }
@@ -76,6 +77,8 @@ Int_t AliRawEventHeaderBase::HeaderSize() const
   // Returns the size of the data members list
   // beyond the base class data members
 
+  if (fHeaderSize) return fHeaderSize;
+
   Int_t size = 0;
 
   TList *datalist = IsA()->GetListOfDataMembers();
@@ -91,6 +94,8 @@ Int_t AliRawEventHeaderBase::HeaderSize() const
       for(UInt_t i=0;i<ndim;i++) size += member->GetMaxIndex(i)*unitsize;
   }
 
+  const_cast<AliRawEventHeaderBase*>(this)->fHeaderSize = size;
+
   return size;
 }