wallet: Refactor to WalletInitInterface* const g_wallet_init_interface

src/init.cpp

@@ -88,7 +88,8 @@ public:
     void Close() override {}
 };
 
-std::unique_ptr<WalletInitInterface> g_wallet_init_interface(new DummyWalletInit);
+static DummyWalletInit g_dummy_wallet_init;
+WalletInitInterface* const g_wallet_init_interface = &g_dummy_wallet_init;
 #endif
 
 #if ENABLE_ZMQ
@@ -283,7 +284,6 @@ void Shutdown()
     GetMainSignals().UnregisterBackgroundSignalScheduler();
     GetMainSignals().UnregisterWithMempoolSignals(mempool);
     g_wallet_init_interface->Close();
-    g_wallet_init_interface.reset();
     globalVerifyHandle.reset();
     ECC_Stop();
     LogPrintf("%s: done\n", __func__);

src/init.h

@@ -13,7 +13,7 @@ class CScheduler;
 class CWallet;
 
 class WalletInitInterface;
-extern std::unique_ptr<WalletInitInterface> g_wallet_init_interface;
+extern WalletInitInterface* const g_wallet_init_interface;
 
 namespace boost
 {

src/wallet/init.cpp

@@ -4,6 +4,7 @@
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <chainparams.h>
+#include <init.h>
 #include <net.h>
 #include <util.h>
 #include <utilmoneystr.h>
@@ -46,7 +47,8 @@ public:
     void Close() override;
 };
 
-std::unique_ptr<WalletInitInterface> g_wallet_init_interface(new WalletInit);
+static WalletInit g_wallet_init;
+WalletInitInterface* const g_wallet_init_interface = &g_wallet_init;
 
 std::string WalletInit::GetHelpString(bool showDebug)
 {