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4dfe383912
Change ChainstateRole parameter passed to wallets and indexes. Wallets and indexes need to know whether chainstate is historical and whether it is fully validated. They should not be aware of the assumeutxo snapshot validation process.
103 lines
3.4 KiB
C++
103 lines
3.4 KiB
C++
// Copyright (c) 2020 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 <boost/test/unit_test.hpp>
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#include <consensus/validation.h>
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#include <primitives/block.h>
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#include <scheduler.h>
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#include <test/util/setup_common.h>
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#include <util/check.h>
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#include <validationinterface.h>
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#include <atomic>
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#include <memory>
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BOOST_FIXTURE_TEST_SUITE(validationinterface_tests, ChainTestingSetup)
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struct TestSubscriberNoop final : public CValidationInterface {
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void BlockChecked(const std::shared_ptr<const CBlock>&, const BlockValidationState&) override {}
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};
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BOOST_AUTO_TEST_CASE(unregister_validation_interface_race)
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{
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std::atomic<bool> generate{true};
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// Start thread to generate notifications
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std::thread gen{[&] {
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BlockValidationState state_dummy;
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while (generate) {
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m_node.validation_signals->BlockChecked(std::make_shared<const CBlock>(), state_dummy);
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}
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}};
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// Start thread to consume notifications
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std::thread sub{[&] {
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// keep going for about 1 sec, which is 250k iterations
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for (int i = 0; i < 250000; i++) {
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auto sub = std::make_shared<TestSubscriberNoop>();
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m_node.validation_signals->RegisterSharedValidationInterface(sub);
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m_node.validation_signals->UnregisterSharedValidationInterface(sub);
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}
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// tell the other thread we are done
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generate = false;
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}};
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gen.join();
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sub.join();
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BOOST_CHECK(!generate);
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}
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class TestInterface : public CValidationInterface
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{
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public:
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TestInterface(ValidationSignals& signals, std::function<void()> on_call = nullptr, std::function<void()> on_destroy = nullptr)
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: m_on_call(std::move(on_call)), m_on_destroy(std::move(on_destroy)), m_signals{signals}
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{
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}
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virtual ~TestInterface()
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{
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if (m_on_destroy) m_on_destroy();
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}
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void BlockChecked(const std::shared_ptr<const CBlock>& block, const BlockValidationState& state) override
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{
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if (m_on_call) m_on_call();
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}
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void Call()
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{
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BlockValidationState state;
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m_signals.BlockChecked(std::make_shared<const CBlock>(), state);
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}
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std::function<void()> m_on_call;
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std::function<void()> m_on_destroy;
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ValidationSignals& m_signals;
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};
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// Regression test to ensure UnregisterAllValidationInterfaces calls don't
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// destroy a validation interface while it is being called. Bug:
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// https://github.com/bitcoin/bitcoin/pull/18551
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BOOST_AUTO_TEST_CASE(unregister_all_during_call)
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{
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bool destroyed = false;
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auto shared{std::make_shared<TestInterface>(
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*m_node.validation_signals,
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[&] {
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// First call should decrements reference count 2 -> 1
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m_node.validation_signals->UnregisterAllValidationInterfaces();
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BOOST_CHECK(!destroyed);
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// Second call should not decrement reference count 1 -> 0
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m_node.validation_signals->UnregisterAllValidationInterfaces();
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BOOST_CHECK(!destroyed);
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},
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[&] { destroyed = true; })};
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m_node.validation_signals->RegisterSharedValidationInterface(shared);
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BOOST_CHECK(shared.use_count() == 2);
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shared->Call();
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BOOST_CHECK(shared.use_count() == 1);
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BOOST_CHECK(!destroyed);
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shared.reset();
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BOOST_CHECK(destroyed);
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}
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BOOST_AUTO_TEST_SUITE_END()
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