validationinterface.h

Go to the documentation of this file.

// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2017 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#ifndef FABCOIN_VALIDATIONINTERFACE_H
#define FABCOIN_VALIDATIONINTERFACE_H
#include <boost/signals2/signal.hpp>
#include <boost/shared_ptr.hpp>
#include <memory>

#include <primitives/transaction.h> // CTransaction(Ref)

class CBlock;
class CBlockIndex;
struct CBlockLocator;
class CBlockIndex;
class CConnman;
class CReserveScript;
class CValidationInterface;
class CValidationState;
class uint256;
class CScheduler;

// These functions dispatch to one or all registered wallets

void RegisterValidationInterface(CValidationInterface* pwalletIn);
void UnregisterValidationInterface(CValidationInterface* pwalletIn);
void UnregisterAllValidationInterfaces();

class CValidationInterface {
protected:
    virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {}
    virtual void TransactionAddedToMempool(const CTransactionRef &ptxn) {}
    virtual void BlockConnected(const std::shared_ptr<const CBlock> &block, const CBlockIndex *pindex, const std::vector<CTransactionRef> &txnConflicted) {}
    virtual void BlockDisconnected(const std::shared_ptr<const CBlock> &block) {}
    virtual void SyncTransaction(const CTransaction &tx, const CBlockIndex *pindex, int posInBlock) {}
    virtual void UpdatedTransaction(const uint256 &hash) {}
    virtual void SetBestChain(const CBlockLocator &locator) {}
    virtual void Inventory(const uint256 &hash) {}
    virtual void ResendWalletTransactions(int64_t nBestBlockTime, CConnman* connman) {}
    virtual void BlockChecked(const CBlock&, const CValidationState&) {}
    virtual void NewPoWValidBlock(const CBlockIndex *pindex, const std::shared_ptr<const CBlock>& block) {};
    virtual void GetScriptForMining(std::shared_ptr<CReserveScript> &coinbaseScript){};
    virtual void ResetRequestCount(const uint256 &){};
    friend void ::RegisterValidationInterface(CValidationInterface*);
    friend void ::UnregisterValidationInterface(CValidationInterface*);
    friend void ::UnregisterAllValidationInterfaces();
};

struct MainSignalsInstance;
class CMainSignals {
private:
    std::unique_ptr<MainSignalsInstance> m_internals;

    friend void ::RegisterValidationInterface(CValidationInterface*);
    friend void ::UnregisterValidationInterface(CValidationInterface*);
    friend void ::UnregisterAllValidationInterfaces();

public:
    static const int SYNC_TRANSACTION_NOT_IN_BLOCK = -1;
    boost::signals2::signal<void (const CTransaction &, const CBlockIndex *pindex, int posInBlock)> SyncTransaction;
    boost::signals2::signal<void (const uint256 &)> UpdatedTransaction;
    void RegisterBackgroundSignalScheduler(CScheduler& scheduler);
    void UnregisterBackgroundSignalScheduler();
    void FlushBackgroundCallbacks();

    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> &);
    void BlockDisconnected(const std::shared_ptr<const CBlock> &);
    void SetBestChain(const CBlockLocator &);
    void Inventory(const uint256 &);
    void Broadcast(int64_t nBestBlockTime, CConnman* connman);
    void BlockChecked(const CBlock&, const CValidationState&);
    void NewPoWValidBlock(const CBlockIndex *, const std::shared_ptr<const CBlock>&);
    void ScriptForMining(std::shared_ptr<CReserveScript> &coinbaseScript);
    void BlockFound(const uint256 &);
};

CMainSignals& GetMainSignals();

#endif // FABCOIN_VALIDATIONINTERFACE_H