CCoinsViewErrorCatcher raison-d-etre

src/init.cpp

@@ -136,6 +136,11 @@ bool ShutdownRequested()
     return fRequestShutdown;
 }
 
+/**
+ * This is a minimally invasive approach to shutdown on LevelDB read errors from the
+ * chainstate, while keeping user interface out of the common library, which is shared
+ * between bitcoind, and bitcoin-qt and non-server tools.
+*/
 class CCoinsViewErrorCatcher : public CCoinsViewBacked
 {
 public: