Merge pull request #34279 from perrotta/initializeMsize

Initialize file size for MatacqProducer::msize

EventFilter/EcalRawToDigi/plugins/MatacqProducer.cc

@@ -364,7 +364,7 @@ bool MatacqProducer::getMatacqEvent(uint32_t runNumber, int32_t orbitId, bool fi
     filepos_t pos = posEstim_.pos(orbitId);
 
     //    struct stat st;
-    filepos_t fsize;
+    filepos_t fsize = -1;
     //    if(0==stat(inFileName_.c_str(), &st)){
     if (msize(fsize)) {
       //      const int64_t fsize = st.st_size;
@@ -747,19 +747,24 @@ void MatacqProducer::PosEstimator::init(MatacqProducer* mp) {
     return;
   }
 
-  filepos_t s;
+  filepos_t s = -1;
   mp->msize(s);
 
-  //number of complete events:
-  const unsigned nEvents = s / eventLength_ / 8;
-
-  if (nEvents == 0) {
+  if (s == -1) {
+    if (verbosity_)
+      cout << "[Matacq " << now() << "] File is missing!" << endl;
+    orbitStepMean_ = 0;
+    return;
+  } else if (s == 0) {
     if (verbosity_)
       cout << "[Matacq " << now() << "] File is empty!" << endl;
     orbitStepMean_ = 0;
     return;
   }
 
+  //number of complete events:
+  const unsigned nEvents = s / eventLength_ / 8;
+
   if (verbosity_ > 1)
     cout << "[Matacq " << now() << "] File size: " << s << " Number of events: " << nEvents << endl;