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233 lines
13 KiB
C++
233 lines
13 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2014 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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#include "validationinterface.h"
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#include "init.h"
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#include "primitives/block.h"
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#include "scheduler.h"
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#include "sync.h"
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#include "txmempool.h"
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#include "util.h"
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#include <list>
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#include <atomic>
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#include <boost/signals2/signal.hpp>
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struct MainSignalsInstance {
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boost::signals2::signal<void (const CBlockIndex *, const CBlockIndex *, bool fInitialDownload)> UpdatedBlockTip;
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boost::signals2::signal<void (const CTransactionRef &, int64_t)> TransactionAddedToMempool;
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boost::signals2::signal<void (const std::shared_ptr<const CBlock> &, const CBlockIndex *pindex, const std::vector<CTransactionRef>&)> BlockConnected;
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boost::signals2::signal<void (const std::shared_ptr<const CBlock> &, const CBlockIndex* pindexDisconnected)> BlockDisconnected;
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boost::signals2::signal<void (const CTransactionRef &)> TransactionRemovedFromMempool;
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boost::signals2::signal<void (const CBlockLocator &)> SetBestChain;
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boost::signals2::signal<void (const uint256 &)> Inventory;
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boost::signals2::signal<void (int64_t nBestBlockTime, CConnman* connman)> Broadcast;
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boost::signals2::signal<void (const CBlock&, const CValidationState&)> BlockChecked;
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boost::signals2::signal<void (const CBlockIndex *, const std::shared_ptr<const CBlock>&)> NewPoWValidBlock;
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boost::signals2::signal<void (const CBlockIndex *)>AcceptedBlockHeader;
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boost::signals2::signal<void (const CBlockIndex *, bool)>NotifyHeaderTip;
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boost::signals2::signal<void (const CTransaction &tx, const llmq::CInstantSendLock& islock)>NotifyTransactionLock;
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boost::signals2::signal<void (const CBlockIndex* pindex, const llmq::CChainLockSig& clsig)>NotifyChainLock;
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boost::signals2::signal<void (const CGovernanceVote &vote)>NotifyGovernanceVote;
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boost::signals2::signal<void (const CGovernanceObject &object)>NotifyGovernanceObject;
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boost::signals2::signal<void (const CTransaction ¤tTx, const CTransaction &previousTx)>NotifyInstantSendDoubleSpendAttempt;
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boost::signals2::signal<void (bool undo, const CDeterministicMNList& oldMNList, const CDeterministicMNListDiff& diff)>NotifyMasternodeListChanged;
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// We are not allowed to assume the scheduler only runs in one thread,
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// but must ensure all callbacks happen in-order, so we end up creating
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// our own queue here :(
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SingleThreadedSchedulerClient m_schedulerClient;
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explicit MainSignalsInstance(CScheduler *pscheduler) : m_schedulerClient(pscheduler) {}
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};
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static CMainSignals g_signals;
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void CMainSignals::RegisterBackgroundSignalScheduler(CScheduler& scheduler) {
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assert(!m_internals);
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m_internals.reset(new MainSignalsInstance(&scheduler));
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}
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void CMainSignals::UnregisterBackgroundSignalScheduler() {
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m_internals.reset(nullptr);
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}
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void CMainSignals::FlushBackgroundCallbacks() {
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if (m_internals) {
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m_internals->m_schedulerClient.EmptyQueue();
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}
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}
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void CMainSignals::RegisterWithMempoolSignals(CTxMemPool& pool) {
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pool.NotifyEntryRemoved.connect(boost::bind(&CMainSignals::MempoolEntryRemoved, this, _1, _2));
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}
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void CMainSignals::UnregisterWithMempoolSignals(CTxMemPool& pool) {
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pool.NotifyEntryRemoved.disconnect(boost::bind(&CMainSignals::MempoolEntryRemoved, this, _1, _2));
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}
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CMainSignals& GetMainSignals()
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{
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return g_signals;
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}
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void RegisterValidationInterface(CValidationInterface* pwalletIn) {
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g_signals.m_internals->AcceptedBlockHeader.connect(boost::bind(&CValidationInterface::AcceptedBlockHeader, pwalletIn, _1));
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g_signals.m_internals->NotifyHeaderTip.connect(boost::bind(&CValidationInterface::NotifyHeaderTip, pwalletIn, _1, _2));
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g_signals.m_internals->UpdatedBlockTip.connect(boost::bind(&CValidationInterface::UpdatedBlockTip, pwalletIn, _1, _2, _3));
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g_signals.m_internals->TransactionAddedToMempool.connect(boost::bind(&CValidationInterface::TransactionAddedToMempool, pwalletIn, _1, _2));
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g_signals.m_internals->BlockConnected.connect(boost::bind(&CValidationInterface::BlockConnected, pwalletIn, _1, _2, _3));
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g_signals.m_internals->BlockDisconnected.connect(boost::bind(&CValidationInterface::BlockDisconnected, pwalletIn, _1, _2));
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g_signals.m_internals->NotifyTransactionLock.connect(boost::bind(&CValidationInterface::NotifyTransactionLock, pwalletIn, _1, _2));
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g_signals.m_internals->NotifyChainLock.connect(boost::bind(&CValidationInterface::NotifyChainLock, pwalletIn, _1, _2));
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g_signals.m_internals->TransactionRemovedFromMempool.connect(boost::bind(&CValidationInterface::TransactionRemovedFromMempool, pwalletIn, _1));
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g_signals.m_internals->SetBestChain.connect(boost::bind(&CValidationInterface::SetBestChain, pwalletIn, _1));
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g_signals.m_internals->Inventory.connect(boost::bind(&CValidationInterface::Inventory, pwalletIn, _1));
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g_signals.m_internals->Broadcast.connect(boost::bind(&CValidationInterface::ResendWalletTransactions, pwalletIn, _1, _2));
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g_signals.m_internals->BlockChecked.connect(boost::bind(&CValidationInterface::BlockChecked, pwalletIn, _1, _2));
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g_signals.m_internals->NewPoWValidBlock.connect(boost::bind(&CValidationInterface::NewPoWValidBlock, pwalletIn, _1, _2));
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g_signals.m_internals->NotifyGovernanceObject.connect(boost::bind(&CValidationInterface::NotifyGovernanceObject, pwalletIn, _1));
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g_signals.m_internals->NotifyGovernanceVote.connect(boost::bind(&CValidationInterface::NotifyGovernanceVote, pwalletIn, _1));
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g_signals.m_internals->NotifyInstantSendDoubleSpendAttempt.connect(boost::bind(&CValidationInterface::NotifyInstantSendDoubleSpendAttempt, pwalletIn, _1, _2));
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g_signals.m_internals->NotifyMasternodeListChanged.connect(boost::bind(&CValidationInterface::NotifyMasternodeListChanged, pwalletIn, _1, _2, _3));
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}
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void UnregisterValidationInterface(CValidationInterface* pwalletIn) {
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g_signals.m_internals->BlockChecked.disconnect(boost::bind(&CValidationInterface::BlockChecked, pwalletIn, _1, _2));
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g_signals.m_internals->Broadcast.disconnect(boost::bind(&CValidationInterface::ResendWalletTransactions, pwalletIn, _1, _2));
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g_signals.m_internals->Inventory.disconnect(boost::bind(&CValidationInterface::Inventory, pwalletIn, _1));
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g_signals.m_internals->SetBestChain.disconnect(boost::bind(&CValidationInterface::SetBestChain, pwalletIn, _1));
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g_signals.m_internals->NotifyChainLock.disconnect(boost::bind(&CValidationInterface::NotifyChainLock, pwalletIn, _1, _2));
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g_signals.m_internals->NotifyTransactionLock.disconnect(boost::bind(&CValidationInterface::NotifyTransactionLock, pwalletIn, _1, _2));
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g_signals.m_internals->TransactionAddedToMempool.disconnect(boost::bind(&CValidationInterface::TransactionAddedToMempool, pwalletIn, _1, _2));
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g_signals.m_internals->BlockConnected.disconnect(boost::bind(&CValidationInterface::BlockConnected, pwalletIn, _1, _2, _3));
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g_signals.m_internals->BlockDisconnected.disconnect(boost::bind(&CValidationInterface::BlockDisconnected, pwalletIn, _1, _2));
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g_signals.m_internals->TransactionRemovedFromMempool.disconnect(boost::bind(&CValidationInterface::TransactionRemovedFromMempool, pwalletIn, _1));
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g_signals.m_internals->UpdatedBlockTip.disconnect(boost::bind(&CValidationInterface::UpdatedBlockTip, pwalletIn, _1, _2, _3));
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g_signals.m_internals->NewPoWValidBlock.disconnect(boost::bind(&CValidationInterface::NewPoWValidBlock, pwalletIn, _1, _2));
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g_signals.m_internals->NotifyHeaderTip.disconnect(boost::bind(&CValidationInterface::NotifyHeaderTip, pwalletIn, _1, _2));
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g_signals.m_internals->AcceptedBlockHeader.disconnect(boost::bind(&CValidationInterface::AcceptedBlockHeader, pwalletIn, _1));
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g_signals.m_internals->NotifyGovernanceObject.disconnect(boost::bind(&CValidationInterface::NotifyGovernanceObject, pwalletIn, _1));
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g_signals.m_internals->NotifyGovernanceVote.disconnect(boost::bind(&CValidationInterface::NotifyGovernanceVote, pwalletIn, _1));
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g_signals.m_internals->NotifyInstantSendDoubleSpendAttempt.disconnect(boost::bind(&CValidationInterface::NotifyInstantSendDoubleSpendAttempt, pwalletIn, _1, _2));
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g_signals.m_internals->NotifyMasternodeListChanged.disconnect(boost::bind(&CValidationInterface::NotifyMasternodeListChanged, pwalletIn, _1, _2, _3));
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}
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void UnregisterAllValidationInterfaces() {
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if (!g_signals.m_internals) {
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return;
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}
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g_signals.m_internals->BlockChecked.disconnect_all_slots();
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g_signals.m_internals->Broadcast.disconnect_all_slots();
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g_signals.m_internals->Inventory.disconnect_all_slots();
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g_signals.m_internals->SetBestChain.disconnect_all_slots();
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g_signals.m_internals->NotifyTransactionLock.disconnect_all_slots();
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g_signals.m_internals->NotifyChainLock.disconnect_all_slots();
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g_signals.m_internals->TransactionAddedToMempool.disconnect_all_slots();
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g_signals.m_internals->BlockConnected.disconnect_all_slots();
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g_signals.m_internals->BlockDisconnected.disconnect_all_slots();
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g_signals.m_internals->TransactionRemovedFromMempool.disconnect_all_slots();
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g_signals.m_internals->UpdatedBlockTip.disconnect_all_slots();
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g_signals.m_internals->NewPoWValidBlock.disconnect_all_slots();
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g_signals.m_internals->NotifyHeaderTip.disconnect_all_slots();
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g_signals.m_internals->AcceptedBlockHeader.disconnect_all_slots();
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g_signals.m_internals->NotifyGovernanceObject.disconnect_all_slots();
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g_signals.m_internals->NotifyGovernanceVote.disconnect_all_slots();
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g_signals.m_internals->NotifyInstantSendDoubleSpendAttempt.disconnect_all_slots();
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g_signals.m_internals->NotifyMasternodeListChanged.disconnect_all_slots();
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}
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void CallFunctionInValidationInterfaceQueue(std::function<void ()> func) {
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g_signals.m_internals->m_schedulerClient.AddToProcessQueue(std::move(func));
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}
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void CMainSignals::MempoolEntryRemoved(CTransactionRef ptx, MemPoolRemovalReason reason) {
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if (reason != MemPoolRemovalReason::BLOCK && reason != MemPoolRemovalReason::CONFLICT) {
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m_internals->m_schedulerClient.AddToProcessQueue([ptx, this] {
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m_internals->TransactionRemovedFromMempool(ptx);
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});
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}
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}
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void CMainSignals::UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {
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m_internals->m_schedulerClient.AddToProcessQueue([pindexNew, pindexFork, fInitialDownload, this] {
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m_internals->UpdatedBlockTip(pindexNew, pindexFork, fInitialDownload);
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});
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}
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void CMainSignals::TransactionAddedToMempool(const CTransactionRef &ptx, int64_t nAcceptTime) {
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m_internals->m_schedulerClient.AddToProcessQueue([ptx, nAcceptTime, this] {
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m_internals->TransactionAddedToMempool(ptx, nAcceptTime);
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});
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}
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void CMainSignals::BlockConnected(const std::shared_ptr<const CBlock> &pblock, const CBlockIndex *pindex, const std::shared_ptr<const std::vector<CTransactionRef>>& pvtxConflicted) {
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m_internals->m_schedulerClient.AddToProcessQueue([pblock, pindex, pvtxConflicted, this] {
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m_internals->BlockConnected(pblock, pindex, *pvtxConflicted);
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});
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}
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void CMainSignals::BlockDisconnected(const std::shared_ptr<const CBlock> &pblock, const CBlockIndex* pindexDisconnected) {
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m_internals->m_schedulerClient.AddToProcessQueue([pblock, pindexDisconnected, this] {
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m_internals->BlockDisconnected(pblock, pindexDisconnected);
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});
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}
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void CMainSignals::SetBestChain(const CBlockLocator &locator) {
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m_internals->m_schedulerClient.AddToProcessQueue([locator, this] {
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m_internals->SetBestChain(locator);
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});
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}
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void CMainSignals::Inventory(const uint256 &hash) {
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m_internals->m_schedulerClient.AddToProcessQueue([hash, this] {
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m_internals->Inventory(hash);
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});
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}
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void CMainSignals::Broadcast(int64_t nBestBlockTime, CConnman* connman) {
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m_internals->Broadcast(nBestBlockTime, connman);
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}
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void CMainSignals::BlockChecked(const CBlock& block, const CValidationState& state) {
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m_internals->BlockChecked(block, state);
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}
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void CMainSignals::NewPoWValidBlock(const CBlockIndex *pindex, const std::shared_ptr<const CBlock> &block) {
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m_internals->NewPoWValidBlock(pindex, block);
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}
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void CMainSignals::AcceptedBlockHeader(const CBlockIndex *pindexNew) {
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m_internals->AcceptedBlockHeader(pindexNew);
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}
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void CMainSignals::NotifyHeaderTip(const CBlockIndex *pindexNew, bool fInitialDownload) {
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m_internals->NotifyHeaderTip(pindexNew, fInitialDownload);
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}
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void CMainSignals::NotifyTransactionLock(const CTransaction &tx, const llmq::CInstantSendLock& islock) {
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m_internals->NotifyTransactionLock(tx, islock);
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}
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void CMainSignals::NotifyChainLock(const CBlockIndex* pindex, const llmq::CChainLockSig& clsig) {
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m_internals->NotifyChainLock(pindex, clsig);
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}
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void CMainSignals::NotifyGovernanceVote(const CGovernanceVote &vote) {
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m_internals->NotifyGovernanceVote(vote);
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}
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void CMainSignals::NotifyGovernanceObject(const CGovernanceObject &object) {
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m_internals->NotifyGovernanceObject(object);
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}
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void CMainSignals::NotifyInstantSendDoubleSpendAttempt(const CTransaction ¤tTx, const CTransaction &previousTx) {
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m_internals->NotifyInstantSendDoubleSpendAttempt(currentTx, previousTx);
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}
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void CMainSignals::NotifyMasternodeListChanged(bool undo, const CDeterministicMNList& oldMNList, const CDeterministicMNListDiff& diff) {
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m_internals->NotifyMasternodeListChanged(undo, oldMNList, diff);
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} |