include the chaintip *blockIndex in the SyncTransaction signal

- allows reducing of calls to main.cpp for getting the chaintip during transaction syncing
- potentially allows reducing of cs_main locks

src/main.cpp

@@ -1234,7 +1234,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState &state, const C
         }
     }
 
-    SyncWithWallets(tx, NULL);
+    SyncWithWallets(tx, NULL, NULL);
 
     return true;
 }
@@ -2391,7 +2391,7 @@ bool static DisconnectTip(CValidationState& state, const Consensus::Params& cons
     // Let wallets know transactions went from 1-confirmed to
     // 0-confirmed or conflicted:
     BOOST_FOREACH(const CTransaction &tx, block.vtx) {
-        SyncWithWallets(tx, NULL);
+        SyncWithWallets(tx, pindexDelete->pprev, NULL);
     }
     return true;
 }
@@ -2450,11 +2450,11 @@ bool static ConnectTip(CValidationState& state, const CChainParams& chainparams,
     // Tell wallet about transactions that went from mempool
     // to conflicted:
     BOOST_FOREACH(const CTransaction &tx, txConflicted) {
-        SyncWithWallets(tx, NULL);
+        SyncWithWallets(tx, pindexNew, NULL);
     }
     // ... and about transactions that got confirmed:
     BOOST_FOREACH(const CTransaction &tx, pblock->vtx) {
-        SyncWithWallets(tx, pblock);
+        SyncWithWallets(tx, pindexNew, pblock);
     }
 
     int64_t nTime6 = GetTimeMicros(); nTimePostConnect += nTime6 - nTime5; nTimeTotal += nTime6 - nTime1;

src/validationinterface.cpp

@@ -14,7 +14,7 @@ CMainSignals& GetMainSignals()
 
 void RegisterValidationInterface(CValidationInterface* pwalletIn) {
     g_signals.UpdatedBlockTip.connect(boost::bind(&CValidationInterface::UpdatedBlockTip, pwalletIn, _1));
-    g_signals.SyncTransaction.connect(boost::bind(&CValidationInterface::SyncTransaction, pwalletIn, _1, _2));
+    g_signals.SyncTransaction.connect(boost::bind(&CValidationInterface::SyncTransaction, pwalletIn, _1, _2, _3));
     g_signals.UpdatedTransaction.connect(boost::bind(&CValidationInterface::UpdatedTransaction, pwalletIn, _1));
     g_signals.SetBestChain.connect(boost::bind(&CValidationInterface::SetBestChain, pwalletIn, _1));
     g_signals.Inventory.connect(boost::bind(&CValidationInterface::Inventory, pwalletIn, _1));
@@ -32,7 +32,7 @@ void UnregisterValidationInterface(CValidationInterface* pwalletIn) {
     g_signals.Inventory.disconnect(boost::bind(&CValidationInterface::Inventory, pwalletIn, _1));
     g_signals.SetBestChain.disconnect(boost::bind(&CValidationInterface::SetBestChain, pwalletIn, _1));
     g_signals.UpdatedTransaction.disconnect(boost::bind(&CValidationInterface::UpdatedTransaction, pwalletIn, _1));
-    g_signals.SyncTransaction.disconnect(boost::bind(&CValidationInterface::SyncTransaction, pwalletIn, _1, _2));
+    g_signals.SyncTransaction.disconnect(boost::bind(&CValidationInterface::SyncTransaction, pwalletIn, _1, _2, _3));
     g_signals.UpdatedBlockTip.disconnect(boost::bind(&CValidationInterface::UpdatedBlockTip, pwalletIn, _1));
 }
 
@@ -48,6 +48,6 @@ void UnregisterAllValidationInterfaces() {
     g_signals.UpdatedBlockTip.disconnect_all_slots();
 }
 
-void SyncWithWallets(const CTransaction &tx, const CBlock *pblock) {
+void SyncWithWallets(const CTransaction &tx, const CBlockIndex *pindex, const CBlock *pblock) {
-    g_signals.SyncTransaction(tx, pblock);
+    g_signals.SyncTransaction(tx, pindex, pblock);
 }

src/validationinterface.h

@@ -10,6 +10,7 @@
 #include <boost/shared_ptr.hpp>
 
 class CBlock;
+class CBlockIndex;
 struct CBlockLocator;
 class CBlockIndex;
 class CReserveScript;
@@ -27,12 +28,12 @@ void UnregisterValidationInterface(CValidationInterface* pwalletIn);
 /** Unregister all wallets from core */
 void UnregisterAllValidationInterfaces();
 /** Push an updated transaction to all registered wallets */
-void SyncWithWallets(const CTransaction& tx, const CBlock* pblock = NULL);
+void SyncWithWallets(const CTransaction& tx, const CBlockIndex *pindex, const CBlock* pblock = NULL);
 
 class CValidationInterface {
 protected:
     virtual void UpdatedBlockTip(const CBlockIndex *pindex) {}
-    virtual void SyncTransaction(const CTransaction &tx, const CBlock *pblock) {}
+    virtual void SyncTransaction(const CTransaction &tx, const CBlockIndex *pindex, const CBlock *pblock) {}
     virtual void SetBestChain(const CBlockLocator &locator) {}
     virtual void UpdatedTransaction(const uint256 &hash) {}
     virtual void Inventory(const uint256 &hash) {}
@@ -49,7 +50,7 @@ struct CMainSignals {
     /** Notifies listeners of updated block chain tip */
     boost::signals2::signal<void (const CBlockIndex *)> UpdatedBlockTip;
     /** Notifies listeners of updated transaction data (transaction, and optionally the block it is found in. */
-    boost::signals2::signal<void (const CTransaction &, const CBlock *)> SyncTransaction;
+    boost::signals2::signal<void (const CTransaction &, const CBlockIndex *pindex, const CBlock *)> SyncTransaction;
     /** Notifies listeners of an updated transaction without new data (for now: a coinbase potentially becoming visible). */
     boost::signals2::signal<void (const uint256 &)> UpdatedTransaction;
     /** Notifies listeners of a new active block chain. */

src/wallet/wallet.cpp

@@ -815,7 +815,7 @@ void CWallet::MarkConflicted(const uint256& hashBlock, const uint256& hashTx)
     }
 }
 
-void CWallet::SyncTransaction(const CTransaction& tx, const CBlock* pblock)
+void CWallet::SyncTransaction(const CTransaction& tx, const CBlockIndex *pindex, const CBlock* pblock)
 {
     LOCK2(cs_main, cs_wallet);
 

src/wallet/wallet.h

@@ -635,7 +635,7 @@ public:
 
     void MarkDirty();
     bool AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet, CWalletDB* pwalletdb);
-    void SyncTransaction(const CTransaction& tx, const CBlock* pblock);
+    void SyncTransaction(const CTransaction& tx, const CBlockIndex *pindex, const CBlock* pblock);
     bool AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate);
     int ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate = false);
     void ReacceptWalletTransactions();

src/zmq/zmqnotificationinterface.cpp

@@ -142,7 +142,7 @@ void CZMQNotificationInterface::UpdatedBlockTip(const CBlockIndex *pindex)
     }
 }
 
-void CZMQNotificationInterface::SyncTransaction(const CTransaction &tx, const CBlock *pblock)
+void CZMQNotificationInterface::SyncTransaction(const CTransaction& tx, const CBlockIndex* pindex, const CBlock* pblock)
 {
     for (std::list<CZMQAbstractNotifier*>::iterator i = notifiers.begin(); i!=notifiers.end(); )
     {

src/zmq/zmqnotificationinterface.h

@@ -24,7 +24,7 @@ protected:
     void Shutdown();
 
     // CValidationInterface
-    void SyncTransaction(const CTransaction &tx, const CBlock *pblock);
+    void SyncTransaction(const CTransaction& tx, const CBlockIndex *pindex, const CBlock* pblock);
     void UpdatedBlockTip(const CBlockIndex *pindex);
 
 private: