wallet: Make WalletInitInterface members const

src/init.cpp

@@ -76,15 +76,15 @@ std::unique_ptr<PeerLogicValidation> peerLogic;
 class DummyWalletInit : public WalletInitInterface {
 public:
 
-    std::string GetHelpString(bool showDebug) override {return std::string{};}
-    bool ParameterInteraction() override {return true;}
-    void RegisterRPC(CRPCTable &) override {}
-    bool Verify() override {return true;}
-    bool Open() override {LogPrintf("No wallet support compiled in!\n"); return true;}
-    void Start(CScheduler& scheduler) override {}
-    void Flush() override {}
-    void Stop() override {}
-    void Close() override {}
+    std::string GetHelpString(bool showDebug) const override {return std::string{};}
+    bool ParameterInteraction() const override {return true;}
+    void RegisterRPC(CRPCTable &) const override {}
+    bool Verify() const override {return true;}
+    bool Open() const override {LogPrintf("No wallet support compiled in!\n"); return true;}
+    void Start(CScheduler& scheduler) const override {}
+    void Flush() const override {}
+    void Stop() const override {}
+    void Close() const override {}
 };
 
 static DummyWalletInit g_dummy_wallet_init;

src/wallet/init.cpp

@@ -18,39 +18,39 @@ class WalletInit : public WalletInitInterface {
 public:
 
     //! Return the wallets help message.
-    std::string GetHelpString(bool showDebug) override;
+    std::string GetHelpString(bool showDebug) const override;
 
     //! Wallets parameter interaction
-    bool ParameterInteraction() override;
+    bool ParameterInteraction() const override;
 
     //! Register wallet RPCs.
-    void RegisterRPC(CRPCTable &tableRPC) override;
+    void RegisterRPC(CRPCTable &tableRPC) const override;
 
     //! Responsible for reading and validating the -wallet arguments and verifying the wallet database.
     //  This function will perform salvage on the wallet if requested, as long as only one wallet is
     //  being loaded (WalletParameterInteraction forbids -salvagewallet, -zapwallettxes or -upgradewallet with multiwallet).
-    bool Verify() override;
+    bool Verify() const override;
 
     //! Load wallet databases.
-    bool Open() override;
+    bool Open() const override;
 
     //! Complete startup of wallets.
-    void Start(CScheduler& scheduler) override;
+    void Start(CScheduler& scheduler) const override;
 
     //! Flush all wallets in preparation for shutdown.
-    void Flush() override;
+    void Flush() const override;
 
     //! Stop all wallets. Wallets will be flushed first.
-    void Stop() override;
+    void Stop() const override;
 
     //! Close all wallets.
-    void Close() override;
+    void Close() const override;
 };
 
 static WalletInit g_wallet_init;
 WalletInitInterface* const g_wallet_init_interface = &g_wallet_init;
 
-std::string WalletInit::GetHelpString(bool showDebug)
+std::string WalletInit::GetHelpString(bool showDebug) const
 {
     std::string strUsage = HelpMessageGroup(_("Wallet options:"));
     strUsage += HelpMessageOpt("-addresstype", strprintf("What type of addresses to use (\"legacy\", \"p2sh-segwit\", or \"bech32\", default: \"%s\")", FormatOutputType(DEFAULT_ADDRESS_TYPE)));
@@ -92,7 +92,7 @@ std::string WalletInit::GetHelpString(bool showDebug)
     return strUsage;
 }
 
-bool WalletInit::ParameterInteraction()
+bool WalletInit::ParameterInteraction() const
 {
     if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
         for (const std::string& wallet : gArgs.GetArgs("-wallet")) {
@@ -220,7 +220,7 @@ bool WalletInit::ParameterInteraction()
     return true;
 }
 
-void WalletInit::RegisterRPC(CRPCTable &t)
+void WalletInit::RegisterRPC(CRPCTable &t) const
 {
     if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
         return;
@@ -229,7 +229,7 @@ void WalletInit::RegisterRPC(CRPCTable &t)
     RegisterWalletRPCCommands(t);
 }
 
-bool WalletInit::Verify()
+bool WalletInit::Verify() const
 {
     if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
         return true;
@@ -304,7 +304,7 @@ bool WalletInit::Verify()
     return true;
 }
 
-bool WalletInit::Open()
+bool WalletInit::Open() const
 {
     if (gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET)) {
         LogPrintf("Wallet disabled!\n");
@@ -322,28 +322,28 @@ bool WalletInit::Open()
     return true;
 }
 
-void WalletInit::Start(CScheduler& scheduler)
+void WalletInit::Start(CScheduler& scheduler) const
 {
     for (CWalletRef pwallet : vpwallets) {
         pwallet->postInitProcess(scheduler);
     }
 }
 
-void WalletInit::Flush()
+void WalletInit::Flush() const
 {
     for (CWalletRef pwallet : vpwallets) {
         pwallet->Flush(false);
     }
 }
 
-void WalletInit::Stop()
+void WalletInit::Stop() const
 {
     for (CWalletRef pwallet : vpwallets) {
         pwallet->Flush(true);
     }
 }
 
-void WalletInit::Close()
+void WalletInit::Close() const
 {
     for (CWalletRef pwallet : vpwallets) {
         delete pwallet;

src/walletinitinterface.h

@@ -13,23 +13,23 @@ class CRPCTable;
 class WalletInitInterface {
 public:
     /** Get wallet help string */
-    virtual std::string GetHelpString(bool showDebug) = 0;
+    virtual std::string GetHelpString(bool showDebug) const = 0;
     /** Check wallet parameter interaction */
-    virtual bool ParameterInteraction() = 0;
+    virtual bool ParameterInteraction() const = 0;
     /** Register wallet RPC*/
-    virtual void RegisterRPC(CRPCTable &) = 0;
+    virtual void RegisterRPC(CRPCTable &) const = 0;
     /** Verify wallets */
-    virtual bool Verify() = 0;
+    virtual bool Verify() const = 0;
     /** Open wallets*/
-    virtual bool Open() = 0;
+    virtual bool Open() const = 0;
     /** Start wallets*/
-    virtual void Start(CScheduler& scheduler) = 0;
+    virtual void Start(CScheduler& scheduler) const = 0;
     /** Flush Wallets*/
-    virtual void Flush() = 0;
+    virtual void Flush() const = 0;
     /** Stop Wallets*/
-    virtual void Stop() = 0;
+    virtual void Stop() const = 0;
     /** Close wallets */
-    virtual void Close() = 0;
+    virtual void Close() const = 0;
 
     virtual ~WalletInitInterface() {}
 };