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Add a CValidationInterface::TransactionRemovedFromMempool

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This is currently unused, but will by used by wallet to cache when
transactions are in the mempool, obviating the need for calls to
mempool from CWalletTx::InMempool()
This commit is contained in:
Matt Corallo
2017-01-20 15:08:14 -05:00
parent 326a5652e0
commit a7d3936de8
4 changed files with 42 additions and 0 deletions
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18
src/validationinterface.h
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@@ -20,6 +20,8 @@ class CValidationInterface;
class CValidationState;
class uint256;
class CScheduler;
class CTxMemPool;
enum class MemPoolRemovalReason;
// These functions dispatch to one or all registered wallets
@@ -36,6 +38,15 @@ protected:
virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {}
/** Notifies listeners of a transaction having been added to mempool. */
virtual void TransactionAddedToMempool(const CTransactionRef &ptxn) {}
/**
* Notifies listeners of a transaction leaving mempool.
*
* This only fires for transactions which leave mempool because of expiry,
* size limiting, reorg (changes in lock times/coinbase maturity), or
* replacement. This does not include any transactions which are included
* in BlockConnectedDisconnected either in block->vtx or in txnConflicted.
*/
virtual void TransactionRemovedFromMempool(const CTransactionRef &ptx) {}
/**
* Notifies listeners of a block being connected.
* Provides a vector of transactions evicted from the mempool as a result.
@@ -74,6 +85,8 @@ private:
friend void ::UnregisterValidationInterface(CValidationInterface*);
friend void ::UnregisterAllValidationInterfaces();
void MempoolEntryRemoved(CTransactionRef tx, MemPoolRemovalReason reason);
public:
/** Register a CScheduler to give callbacks which should run in the background (may only be called once) */
void RegisterBackgroundSignalScheduler(CScheduler& scheduler);
@@ -82,6 +95,11 @@ public:
/** Call any remaining callbacks on the calling thread */
void FlushBackgroundCallbacks();
/** Register with mempool to call TransactionRemovedFromMempool callbacks */
void RegisterWithMempoolSignals(CTxMemPool& pool);
/** Unregister with mempool */
void UnregisterWithMempoolSignals(CTxMemPool& pool);
void UpdatedBlockTip(const CBlockIndex *, const CBlockIndex *, bool fInitialDownload);
void TransactionAddedToMempool(const CTransactionRef &);
void BlockConnected(const std::shared_ptr<const CBlock> &, const CBlockIndex *pindex, const std::vector<CTransactionRef> &);