added InfoLoggerMessageList::size()

Author: sy-c

src/InfoLoggerMessageList.cxx

@@ -25,3 +25,11 @@ InfoLoggerMessageList::~InfoLoggerMessageList()
   infoLog_msg_destroy(msg); // destroy list (ok with null)
 }
 
+unsigned long InfoLoggerMessageList::size()
+{
+  unsigned long nMsg = 0;
+  for (infoLog_msg_t* m = this->msg; m != nullptr; m = m->next) {
+    nMsg++;
+  }
+  return nMsg;
+}

src/InfoLoggerMessageList.h

@@ -21,6 +21,7 @@ class InfoLoggerMessageList
   InfoLoggerMessageList(TR_file* rawMessageList);
   ~InfoLoggerMessageList();
   infoLog_msg_t* msg;
+  unsigned long size(); // return number of messages in list
 };
 
 // _INFOLOGGER_MESSAGE_LIST_H