Implement ChainTip signal.

furszy · furszy · commit df71481bd538 · 2020-10-22T11:36:23.000-03:00
diff --git a/src/validationinterface.cpp b/src/validationinterface.cpp
@@ -17,6 +17,7 @@ void RegisterValidationInterface(CValidationInterface* pwalletIn)
 {
     g_signals.UpdatedBlockTip.connect(boost::bind(&CValidationInterface::UpdatedBlockTip, pwalletIn, _1, _2, _3));
     g_signals.SyncTransaction.connect(boost::bind(&CValidationInterface::SyncTransaction, pwalletIn, _1, _2, _3));
+    g_signals.ChainTip.connect(boost::bind(&CValidationInterface::ChainTip, pwalletIn, _1, _2, _3));
     g_signals.NotifyTransactionLock.connect(boost::bind(&CValidationInterface::NotifyTransactionLock, pwalletIn, _1));
     g_signals.UpdatedTransaction.connect(boost::bind(&CValidationInterface::UpdatedTransaction, pwalletIn, _1));
     g_signals.SetBestChain.connect(boost::bind(&CValidationInterface::SetBestChain, pwalletIn, _1));
@@ -34,6 +35,7 @@ void UnregisterValidationInterface(CValidationInterface* pwalletIn)
     g_signals.UpdatedTransaction.disconnect(boost::bind(&CValidationInterface::UpdatedTransaction, pwalletIn, _1));
     g_signals.NotifyTransactionLock.disconnect(boost::bind(&CValidationInterface::NotifyTransactionLock, pwalletIn, _1));
     g_signals.SyncTransaction.disconnect(boost::bind(&CValidationInterface::SyncTransaction, pwalletIn, _1, _2, _3));
+    g_signals.ChainTip.disconnect(boost::bind(&CValidationInterface::ChainTip, pwalletIn, _1, _2, _3));
     g_signals.UpdatedBlockTip.disconnect(boost::bind(&CValidationInterface::UpdatedBlockTip, pwalletIn, _1, _2, _3));
 }
 
@@ -46,5 +48,6 @@ void UnregisterAllValidationInterfaces()
     g_signals.UpdatedTransaction.disconnect_all_slots();
     g_signals.NotifyTransactionLock.disconnect_all_slots();
     g_signals.SyncTransaction.disconnect_all_slots();
+    g_signals.ChainTip.disconnect_all_slots();
     g_signals.UpdatedBlockTip.disconnect_all_slots();
 }
diff --git a/src/validationinterface.h b/src/validationinterface.h
@@ -7,6 +7,9 @@
 #ifndef BITCOIN_VALIDATIONINTERFACE_H
 #define BITCOIN_VALIDATIONINTERFACE_H
 
+#include "optional.h"
+#include "sapling/incrementalmerkletree.hpp"
+
 #include <boost/signals2/signal.hpp>
 #include <boost/shared_ptr.hpp>
 
@@ -33,6 +36,7 @@ class CValidationInterface {
 protected:
     virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {}
     virtual void SyncTransaction(const CTransaction &tx, const CBlockIndex *pindex, int posInBlock) {}
+    virtual void ChainTip(const CBlockIndex *pindex, const CBlock *pblock, Optional<SaplingMerkleTree> added) {}
     virtual void NotifyTransactionLock(const CTransaction &tx) {}
     virtual void SetBestChain(const CBlockLocator &locator) {}
     virtual bool UpdatedTransaction(const uint256 &hash) { return false;}
@@ -64,6 +68,9 @@ struct CMainSignals {
     boost::signals2::signal<void (const CBlock&, const CValidationState&)> BlockChecked;
     /** Notifies listeners that a block has been successfully mined */
     boost::signals2::signal<void (const uint256 &)> BlockFound;
+
+    /** Notifies listeners of a change to the tip of the active block chain. */
+    boost::signals2::signal<void (const CBlockIndex *, const CBlock *, Optional<SaplingMerkleTree>)> ChainTip;
 };
 
 CMainSignals& GetMainSignals();
