tomFlowee
b83fd08789
When blocks are reverted clients likely want to know. This gives them the information the moment it becomes clear.
104 lines
3.9 KiB
C++
104 lines
3.9 KiB
C++
/*
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* This file is part of the Flowee project
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* Copyright (C) 2009-2010 Satoshi Nakamoto
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* Copyright (C) 2009-2015 The Bitcoin Core developers
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* Copyright (C) 2017-2021 Tom Zander <tom@flowee.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef FLOWEE_VALIDATIONINTERFACE_H
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#define FLOWEE_VALIDATIONINTERFACE_H
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#include <boost/shared_ptr.hpp>
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#include <list>
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#include <vector>
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class CBlock;
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struct CBlockLocator;
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class CBlockIndex;
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class CTransaction;
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class uint256;
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class Tx;
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class FastBlock;
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class DoubleSpendProof;
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class ValidationInterface {
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public:
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/** Notifies listeners of updated transaction data, and optionally the block it is found in. */
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virtual void syncTransaction(const CTransaction &tx) {}
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/** Notifies listeners of updated transaction data, and optionally the block it is found in. */
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virtual void syncTx(const Tx &) {}
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/** Notifies listeners of updated transaction data, on a new accepted block. */
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virtual void syncAllTransactionsInBlock(const CBlock *pblock) {}
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/** Notifies listeners of updated transaction data, on a new accepted block. */
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virtual void syncAllTransactionsInBlock(const FastBlock &, CBlockIndex *) {}
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/** Notifies listeners of a new active block chain. */
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virtual void setBestChain(const CBlockLocator &locator) {}
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/** Notifies listeners of an updated transaction without new data (for now: a coinbase potentially becoming visible). */
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virtual void updatedTransaction(const uint256 &hash) {}
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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) {}
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/**
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* Notifies listeners that we received a double-spend.
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* First is the tx that is in our mempool, duplicate is the one we received and reject
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*/
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virtual void doubleSpendFound(const Tx &first, const Tx &duplicate) {}
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/**
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* Notifies listeners that we received a double-spend proof.
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* First is the tx that is in our mempool, proof is the actual proof.
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*/
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virtual void doubleSpendFound(const Tx &txInMempool, const DoubleSpendProof &proof) {}
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virtual void chainReorged(CBlockIndex *oldTip, const std::vector<FastBlock> &revertedBlocks) {}
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};
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class ValidationInterfaceBroadcaster : public ValidationInterface
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{
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public:
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void syncTransaction(const CTransaction &tx) override;
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void syncTx(const Tx &) override;
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void syncAllTransactionsInBlock(const CBlock *pblock) override;
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void syncAllTransactionsInBlock(const FastBlock &block, CBlockIndex *index) override;
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void setBestChain(const CBlockLocator &locator) override;
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void updatedTransaction(const uint256 &hash) override;
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void inventory(const uint256 &hash) override;
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void resendWalletTransactions(int64_t nBestBlockTime) override;
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void doubleSpendFound(const Tx &first, const Tx &duplicate) override;
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void doubleSpendFound(const Tx &txInMempool, const DoubleSpendProof &proof) override;
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void chainReorged(CBlockIndex *oldTip, const std::vector<FastBlock> &revertedBlocks) override;
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void addListener(ValidationInterface *impl);
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void removeListener(ValidationInterface *impl);
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void removeAll();
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private:
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std::list<ValidationInterface*> m_listeners;
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};
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ValidationInterfaceBroadcaster &ValidationNotifier();
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#endif
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