3192975f1d
Note that the CScheduler thread cant be running at this point, it has already been stopped with the rest of the init threadgroup. Thus, just calling any remaining loose callbacks during Shutdown() is sane.
127 lines
6.3 KiB
C++
127 lines
6.3 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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#include "validationinterface.h"
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#include "init.h"
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#include "scheduler.h"
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#include "sync.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 &)> 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> &)> BlockDisconnected;
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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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// 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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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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m_internals->m_schedulerClient.EmptyQueue();
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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->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));
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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));
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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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}
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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->TransactionAddedToMempool.disconnect(boost::bind(&CValidationInterface::TransactionAddedToMempool, pwalletIn, _1));
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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));
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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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}
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void UnregisterAllValidationInterfaces() {
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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->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->UpdatedBlockTip.disconnect_all_slots();
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g_signals.m_internals->NewPoWValidBlock.disconnect_all_slots();
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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->UpdatedBlockTip(pindexNew, pindexFork, fInitialDownload);
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}
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void CMainSignals::TransactionAddedToMempool(const CTransactionRef &ptx) {
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m_internals->TransactionAddedToMempool(ptx);
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}
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void CMainSignals::BlockConnected(const std::shared_ptr<const CBlock> &pblock, const CBlockIndex *pindex, const std::vector<CTransactionRef>& vtxConflicted) {
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m_internals->BlockConnected(pblock, pindex, vtxConflicted);
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}
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void CMainSignals::BlockDisconnected(const std::shared_ptr<const CBlock> &pblock) {
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m_internals->BlockDisconnected(pblock);
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}
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void CMainSignals::SetBestChain(const CBlockLocator &locator) {
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m_internals->SetBestChain(locator);
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}
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void CMainSignals::Inventory(const uint256 &hash) {
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m_internals->Inventory(hash);
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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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