--- chewbacca/PamOffLineSW/PamOffLineSW_Main.cpp	2010/02/02 15:26:09	1.9
+++ chewbacca/PamOffLineSW/PamOffLineSW_Main.cpp	2010/02/11 09:02:10	1.10
@@ -1,5 +1,5 @@
 //============================================================================
-// $Id: PamOffLineSW_Main.cpp,v 1.8 2009/12/24 10:31:13 mocchiut Exp $ 
+// $Id: PamOffLineSW_Main.cpp,v 1.9 2010/02/02 15:26:09 mocchiut Exp $ 
 // Description : Pamela Off-Line Software
 //============================================================================
 
@@ -61,9 +61,12 @@
 
 Long64_t filelength = 0LL;
 Long64_t streamposi = 0LL;
+Long64_t streamposisaved = 0LL;
+Int_t numposi = 10;
 Long64_t downcount = 1LL;
 TArrayL64 *dwin=new TArrayL64(12);
 Long64_t cadcount = 0LL;
+Int_t horrorcount = 0;
 
 bool skip_cadre = false;
 long int iNumGoodCadres=0; //total number of good cadres
@@ -902,10 +905,21 @@
 	 { 		
 		isCadreGood = true;		
 		//start reading the file
+		streamposi = (Long64_t)fin.tellg(); // stream position in the file before reading the vrl header
+		if ( iNumCadres > 9 && numposi > 9 ){
+			streamposisaved = streamposi;
+			numposi = 0;			
+		};
+		numposi++;
+                //
 		fin.read(ccHeader_VRL, LENGTH_HEADER_VRL); 		
-		streamposi = (Long64_t)fin.tellg(); // stream position in the file
-		//		printf(" position in file is %i \n",streamposi);
-
+		//		printf(" position in file is %llu \n",streamposi);
+		stringstream ss;
+		ss.str() = "";
+		ss << " position in file is "<<streamposi;
+		string sms = ss.str();
+		//		mainLogUtil->logError(sms);
+		//
 		if (!fin.good())
 		{	
 			//TODO: check here
@@ -933,8 +947,37 @@
 			" This error occurred after byte: "<<iByte_tot<<" ... use the data carefully";
 			string msg = oss.str();
 			mainLogUtil->logWarning(msg);
+			//			printf(" streamposi %llu \n",streamposi);
 		} 
 		
+		//
+		// we completely missed more than 10 VRL packets
+		//
+		//		if ( horrorcount > 10 ){
+		if ( horrorcount > 1 ){
+		  stringstream os;						
+		  os<<" NEW (EM) THIS IS TOO MUCH, LOST SYNC WITH VRL HEADERS! try to recover horrorcount = "<<horrorcount;
+		  os<<" new position in file "<<(streamposi-(10LL*1024LL)+1LL);
+		  //		  os<<" new position in file "<<(streamposi-(1LL*1024LL)+1LL);
+		  string ms = os.str();
+		  mainLogUtil->logAll(ms);
+		  //		  printf(" fin.(streamposi-10*1025-7) %llu \n",streamposi-(10LL*1025LL)-7LL);
+		  if ( (streamposi-(10LL*1024LL)+1LL) < streamposisaved ){
+			  fin.seekg(streamposisaved+1LL);
+			  stringstream oss;
+                        oss<<" Problems repositioning stream reader... streamposisaved "<<streamposisaved;
+                        string msg = oss.str();
+                        mainLogUtil->logWarning(msg);
+
+		  } else {
+			  fin.seekg(streamposi-(10LL*1024LL)+1LL);
+		  };
+		  //		  fin.seekg(streamposi-(1LL*1024LL)+1LL);
+		  horrorcount = 0;
+		  continue;
+		};
+
+
 		//we have read and analysed the header VRL of this cadre
 		iByte_tot+=fin.gcount();
 		
@@ -1106,8 +1149,21 @@
 		" This error occurred after byte: "<<iByte_tot<<" ... Route number unused= "<<(int)headVRL[3]<<" Resetting ROUTE to old value = "<<old_route<<" (download="<<download<<")";
 		string msg = oss.str();
 		mainLogUtil->logAll(msg);
+
+		if ( ((int)(unsigned char)headVRL[0]!=CODE_FF)&&((int)(unsigned char)headVRL[1]!=CODE_46)&& ((int)(unsigned char)headVRL[2]!=CODE_D5) ){
+		  stringstream os;						
+		  os<<" Horror movie, the cadre does not start with FF 46 D5 at all! "<<
+		    " This error occurred after byte: "<<iByte_tot<<" ... Route number unused= "<<(int)headVRL[3]<<" Resetting ROUTE to old value = "<<old_route<<" (download="<<download<<")";
+		  string ms = os.str();
+		  mainLogUtil->logAll(ms);
+		  horrorcount++;
+		};
+
 		return false;
 	}
+
+	horrorcount = 0;
+
 	// EM qui condizione su posizione file
 	Bool_t downchangeallowed = false;	
 	for (Int_t ee=0; ee<(-1+2+2*downcount); ee+=2){