validationinterface.h

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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2015 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 BITCOIN_VALIDATIONINTERFACE_H
#define BITCOIN_VALIDATIONINTERFACE_H

#include <boost/signals2/signal.hpp>
#include <boost/shared_ptr.hpp>

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

// These functions dispatch to one or all registered wallets

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

class CValidationInterface {
protected:
    virtual void AcceptedBlockHeader(const CBlockIndex *pindexNew) {}
    virtual void NotifyHeaderTip(const CBlockIndex *pindexNew, bool fInitialDownload) {}
    virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {}
    virtual void SyncTransaction(const CTransaction &tx, const CBlock *pblock) {}
    virtual void NotifyTransactionLock(const CTransaction &tx) {}
    virtual void SetBestChain(const CBlockLocator &locator) {}
    virtual bool UpdatedTransaction(const uint256 &hash) { return false;}
    virtual void Inventory(const uint256 &hash) {}
    virtual void ResendWalletTransactions(int64_t nBestBlockTime, CConnman* connman) {}
    virtual void BlockChecked(const CBlock&, const CValidationState&) {}
    virtual void GetScriptForMining(boost::shared_ptr<CReserveScript>&) {};
    virtual void ResetRequestCount(const uint256 &hash) {};
    friend void ::RegisterValidationInterface(CValidationInterface*);
    friend void ::UnregisterValidationInterface(CValidationInterface*);
    friend void ::UnregisterAllValidationInterfaces();
};

struct CMainSignals {
    boost::signals2::signal<void (const CBlockIndex *)> AcceptedBlockHeader;
    boost::signals2::signal<void (const CBlockIndex *, bool fInitialDownload)> NotifyHeaderTip;
    boost::signals2::signal<void (const CBlockIndex *, const CBlockIndex *, bool fInitialDownload)> UpdatedBlockTip;
    boost::signals2::signal<void (const CTransaction &, const CBlock *)> SyncTransaction;
    boost::signals2::signal<void (const CTransaction &)> NotifyTransactionLock;
    boost::signals2::signal<bool (const uint256 &)> UpdatedTransaction;
    boost::signals2::signal<void (const CBlockLocator &)> SetBestChain;
    boost::signals2::signal<void (const uint256 &)> Inventory;
    boost::signals2::signal<void (int64_t nBestBlockTime, CConnman* connman)> Broadcast;
    boost::signals2::signal<void (const CBlock&, const CValidationState&)> BlockChecked;
    boost::signals2::signal<void (boost::shared_ptr<CReserveScript>&)> ScriptForMining;
    boost::signals2::signal<void (const uint256 &)> BlockFound;
};

CMainSignals& GetMainSignals();

#endif // BITCOIN_VALIDATIONINTERFACE_H