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a7d3936de8
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()
117 lines
5.2 KiB
C++
117 lines
5.2 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2016 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_VALIDATIONINTERFACE_H
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#define BITCOIN_VALIDATIONINTERFACE_H
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#include <memory>
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#include "primitives/transaction.h" // CTransaction(Ref)
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class CBlock;
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class CBlockIndex;
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struct CBlockLocator;
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class CBlockIndex;
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class CConnman;
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class CReserveScript;
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class CValidationInterface;
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class CValidationState;
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class uint256;
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class CScheduler;
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class CTxMemPool;
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enum class MemPoolRemovalReason;
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// These functions dispatch to one or all registered wallets
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/** Register a wallet to receive updates from core */
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void RegisterValidationInterface(CValidationInterface* pwalletIn);
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/** Unregister a wallet from core */
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void UnregisterValidationInterface(CValidationInterface* pwalletIn);
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/** Unregister all wallets from core */
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void UnregisterAllValidationInterfaces();
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class CValidationInterface {
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protected:
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/** Notifies listeners of updated block chain tip */
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virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {}
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/** Notifies listeners of a transaction having been added to mempool. */
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virtual void TransactionAddedToMempool(const CTransactionRef &ptxn) {}
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/**
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* Notifies listeners of a transaction leaving mempool.
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*
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* This only fires for transactions which leave mempool because of expiry,
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* size limiting, reorg (changes in lock times/coinbase maturity), or
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* replacement. This does not include any transactions which are included
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* in BlockConnectedDisconnected either in block->vtx or in txnConflicted.
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*/
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virtual void TransactionRemovedFromMempool(const CTransactionRef &ptx) {}
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/**
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* Notifies listeners of a block being connected.
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* Provides a vector of transactions evicted from the mempool as a result.
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*/
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virtual void BlockConnected(const std::shared_ptr<const CBlock> &block, const CBlockIndex *pindex, const std::vector<CTransactionRef> &txnConflicted) {}
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/** Notifies listeners of a block being disconnected */
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virtual void BlockDisconnected(const std::shared_ptr<const CBlock> &block) {}
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/** Notifies listeners of the new active block chain on-disk. */
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virtual void SetBestChain(const CBlockLocator &locator) {}
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/** Notifies listeners about an inventory item being seen on the network. */
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virtual void Inventory(const uint256 &hash) {}
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/** Tells listeners to broadcast their data. */
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virtual void ResendWalletTransactions(int64_t nBestBlockTime, CConnman* connman) {}
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/**
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* Notifies listeners of a block validation result.
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* If the provided CValidationState IsValid, the provided block
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* is guaranteed to be the current best block at the time the
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* callback was generated (not necessarily now)
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*/
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virtual void BlockChecked(const CBlock&, const CValidationState&) {}
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/**
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* Notifies listeners that a block which builds directly on our current tip
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* has been received and connected to the headers tree, though not validated yet */
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virtual void NewPoWValidBlock(const CBlockIndex *pindex, const std::shared_ptr<const CBlock>& block) {};
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friend void ::RegisterValidationInterface(CValidationInterface*);
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friend void ::UnregisterValidationInterface(CValidationInterface*);
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friend void ::UnregisterAllValidationInterfaces();
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};
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struct MainSignalsInstance;
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class CMainSignals {
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private:
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std::unique_ptr<MainSignalsInstance> m_internals;
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friend void ::RegisterValidationInterface(CValidationInterface*);
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friend void ::UnregisterValidationInterface(CValidationInterface*);
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friend void ::UnregisterAllValidationInterfaces();
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void MempoolEntryRemoved(CTransactionRef tx, MemPoolRemovalReason reason);
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public:
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/** Register a CScheduler to give callbacks which should run in the background (may only be called once) */
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void RegisterBackgroundSignalScheduler(CScheduler& scheduler);
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/** Unregister a CScheduler to give callbacks which should run in the background - these callbacks will now be dropped! */
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void UnregisterBackgroundSignalScheduler();
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/** Call any remaining callbacks on the calling thread */
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void FlushBackgroundCallbacks();
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/** Register with mempool to call TransactionRemovedFromMempool callbacks */
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void RegisterWithMempoolSignals(CTxMemPool& pool);
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/** Unregister with mempool */
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void UnregisterWithMempoolSignals(CTxMemPool& pool);
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void UpdatedBlockTip(const CBlockIndex *, const CBlockIndex *, bool fInitialDownload);
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void TransactionAddedToMempool(const CTransactionRef &);
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void BlockConnected(const std::shared_ptr<const CBlock> &, const CBlockIndex *pindex, const std::vector<CTransactionRef> &);
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void BlockDisconnected(const std::shared_ptr<const CBlock> &);
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void SetBestChain(const CBlockLocator &);
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void Inventory(const uint256 &);
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void Broadcast(int64_t nBestBlockTime, CConnman* connman);
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void BlockChecked(const CBlock&, const CValidationState&);
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void NewPoWValidBlock(const CBlockIndex *, const std::shared_ptr<const CBlock>&);
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};
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CMainSignals& GetMainSignals();
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#endif // BITCOIN_VALIDATIONINTERFACE_H
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