Fix ZMQ Notification initialization and shutdown

Moves the call Initialize() from init.cpp to CreateWithArguments() and handles the
return value. Moves the call Shutdown() from init.cpp to destructor.
Changes Initialize() and Shutdown() to protected members.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/zmq/zmqnotificationinterface.h b/src/zmq/zmqnotificationinterface.h
index 8eea15c068..3ccfaf341d 100644
--- a/src/zmq/zmqnotificationinterface.h
+++ b/src/zmq/zmqnotificationinterface.h
@@ -19,10 +19,11 @@ public:
 
     static CZMQNotificationInterface* CreateWithArguments(const std::map<std::string, std::string> &args);
 
+protected:
     bool Initialize();
     void Shutdown();
 
-protected: // CValidationInterface
+    // CValidationInterface
     void SyncTransaction(const CTransaction &tx, const CBlock *pblock);
     void UpdatedBlockTip(const CBlockIndex *pindex);