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7b585cf70e
c4a6929 Clarify assumptions made about when BlockCheck is called (Matt Corallo)
Tree-SHA512: 2eceb0c4f06c7fd6b290b93843bda11a4b63131559c5e8226bfec84596ed4e54ee6d8f5bc9cf789a80675be8b8079cf9234c96032df306258cb2260b9d8c7825
92 lines
4.5 KiB
C++
92 lines
4.5 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 <boost/signals2/signal.hpp>
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#include <boost/shared_ptr.hpp>
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#include <memory>
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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 CTransaction;
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class CValidationInterface;
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class CValidationState;
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class uint256;
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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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virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {}
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virtual void SyncTransaction(const CTransaction &tx, const CBlockIndex *pindex, int posInBlock) {}
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virtual void SetBestChain(const CBlockLocator &locator) {}
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virtual void UpdatedTransaction(const uint256 &hash) {}
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virtual void Inventory(const uint256 &hash) {}
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virtual void ResendWalletTransactions(int64_t nBestBlockTime, CConnman* connman) {}
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virtual void BlockChecked(const CBlock&, const CValidationState&) {}
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virtual void GetScriptForMining(boost::shared_ptr<CReserveScript>&) {};
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virtual void ResetRequestCount(const uint256 &hash) {};
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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 CMainSignals {
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/** Notifies listeners of updated block chain tip */
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boost::signals2::signal<void (const CBlockIndex *, const CBlockIndex *, bool fInitialDownload)> UpdatedBlockTip;
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/** A posInBlock value for SyncTransaction calls for transactions not
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* included in connected blocks such as transactions removed from mempool,
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* accepted to mempool or appearing in disconnected blocks.*/
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static const int SYNC_TRANSACTION_NOT_IN_BLOCK = -1;
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/** Notifies listeners of updated transaction data (transaction, and
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* optionally the block it is found in). Called with block data when
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* transaction is included in a connected block, and without block data when
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* transaction was accepted to mempool, removed from mempool (only when
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* removal was due to conflict from connected block), or appeared in a
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* disconnected block.*/
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boost::signals2::signal<void (const CTransaction &, const CBlockIndex *pindex, int posInBlock)> SyncTransaction;
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/** Notifies listeners of an updated transaction without new data (for now: a coinbase potentially becoming visible). */
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boost::signals2::signal<void (const uint256 &)> UpdatedTransaction;
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/** Notifies listeners of a new active block chain. */
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boost::signals2::signal<void (const CBlockLocator &)> SetBestChain;
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/** Notifies listeners about an inventory item being seen on the network. */
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boost::signals2::signal<void (const uint256 &)> Inventory;
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/** Tells listeners to broadcast their data. */
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boost::signals2::signal<void (int64_t nBestBlockTime, CConnman* connman)> Broadcast;
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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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boost::signals2::signal<void (const CBlock&, const CValidationState&)> BlockChecked;
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/** Notifies listeners that a key for mining is required (coinbase) */
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boost::signals2::signal<void (boost::shared_ptr<CReserveScript>&)> ScriptForMining;
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/** Notifies listeners that a block has been successfully mined */
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boost::signals2::signal<void (const uint256 &)> BlockFound;
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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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boost::signals2::signal<void (const CBlockIndex *, const std::shared_ptr<const CBlock>&)> NewPoWValidBlock;
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};
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CMainSignals& GetMainSignals();
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#endif // BITCOIN_VALIDATIONINTERFACE_H
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