From 593a8e8a2ce177c41a7809479c0086ae0fee4b4e Mon Sep 17 00:00:00 2001 From: practicalswift Date: Thu, 16 May 2019 21:42:34 +0200 Subject: [PATCH 1/2] wallet: Use chain.lock() instead of temporary chain.assumeLocked() --- src/wallet/wallet.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 054329fbd0..0822c7c30e 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -4074,7 +4074,7 @@ std::shared_ptr CWallet::CreateWalletFromFile(interfaces::Chain& chain, return nullptr; } - auto locked_chain = chain.assumeLocked(); // Temporary. Removed in upcoming lock cleanup + auto locked_chain = chain.lock(); walletInstance->ChainStateFlushed(locked_chain->getTipLocator()); } else if (wallet_creation_flags & WALLET_FLAG_DISABLE_PRIVATE_KEYS) { // Make it impossible to disable private keys after creation From 9402ef0739fdcd8e989c07c0595095e9608b243c Mon Sep 17 00:00:00 2001 From: practicalswift Date: Thu, 16 May 2019 21:43:22 +0200 Subject: [PATCH 2/2] Remove temporary method assumeLocked(). Remove LockingStateImpl. Remove redundant cs_main locks. --- src/interfaces/chain.cpp | 10 +++------- src/interfaces/chain.h | 5 ----- src/wallet/test/wallet_tests.cpp | 31 +++++++++++++++++++------------ 3 files changed, 22 insertions(+), 24 deletions(-) diff --git a/src/interfaces/chain.cpp b/src/interfaces/chain.cpp index 59623284d2..eaddcd9dd2 100644 --- a/src/interfaces/chain.cpp +++ b/src/interfaces/chain.cpp @@ -37,7 +37,7 @@ namespace interfaces { namespace { -class LockImpl : public Chain::Lock +class LockImpl : public Chain::Lock, public UniqueLock { Optional getHeight() override { @@ -155,10 +155,7 @@ class LockImpl : public Chain::Lock return AcceptToMemoryPool(::mempool, state, tx, nullptr /* missing inputs */, nullptr /* txn replaced */, false /* bypass limits */, absurd_fee); } -}; -class LockingStateImpl : public LockImpl, public UniqueLock -{ using UniqueLock::UniqueLock; }; @@ -249,13 +246,12 @@ class ChainImpl : public Chain public: std::unique_ptr lock(bool try_lock) override { - auto result = MakeUnique(::cs_main, "cs_main", __FILE__, __LINE__, try_lock); + auto result = MakeUnique(::cs_main, "cs_main", __FILE__, __LINE__, try_lock); if (try_lock && result && !*result) return {}; // std::move necessary on some compilers due to conversion from - // LockingStateImpl to Lock pointer + // LockImpl to Lock pointer return std::move(result); } - std::unique_ptr assumeLocked() override { return MakeUnique(); } bool findBlock(const uint256& hash, CBlock* block, int64_t* time, int64_t* time_max) override { CBlockIndex* index; diff --git a/src/interfaces/chain.h b/src/interfaces/chain.h index 0b7249a5ab..459c3c9a9f 100644 --- a/src/interfaces/chain.h +++ b/src/interfaces/chain.h @@ -138,11 +138,6 @@ public: //! unlocked when the returned interface is freed. virtual std::unique_ptr lock(bool try_lock = false) = 0; - //! Return Lock interface assuming chain is already locked. This - //! method is temporary and is only used in a few places to avoid changing - //! behavior while code is transitioned to use the Chain::Lock interface. - virtual std::unique_ptr assumeLocked() = 0; - //! Return whether node has the block and optionally return block metadata //! or contents. //! diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp index 69a78f1fc0..62630c011a 100644 --- a/src/wallet/test/wallet_tests.cpp +++ b/src/wallet/test/wallet_tests.cpp @@ -368,7 +368,10 @@ public: int changePos = -1; std::string error; CCoinControl dummy; - BOOST_CHECK(wallet->CreateTransaction(*m_locked_chain, {recipient}, tx, reservekey, fee, changePos, error, dummy)); + { + auto locked_chain = m_chain->lock(); + BOOST_CHECK(wallet->CreateTransaction(*locked_chain, {recipient}, tx, reservekey, fee, changePos, error, dummy)); + } CValidationState state; BOOST_CHECK(wallet->CommitTransaction(tx, {}, {}, reservekey, state)); CMutableTransaction blocktx; @@ -387,7 +390,6 @@ public: } std::unique_ptr m_chain = interfaces::MakeChain(); - std::unique_ptr m_locked_chain = m_chain->assumeLocked(); // Temporary. Removed in upcoming lock cleanup std::unique_ptr wallet; }; @@ -399,8 +401,9 @@ BOOST_FIXTURE_TEST_CASE(ListCoins, ListCoinsTestingSetup) // address. std::map> list; { - LOCK2(cs_main, wallet->cs_wallet); - list = wallet->ListCoins(*m_locked_chain); + auto locked_chain = m_chain->lock(); + LOCK(wallet->cs_wallet); + list = wallet->ListCoins(*locked_chain); } BOOST_CHECK_EQUAL(list.size(), 1U); BOOST_CHECK_EQUAL(boost::get(list.begin()->first).ToString(), coinbaseAddress); @@ -415,8 +418,9 @@ BOOST_FIXTURE_TEST_CASE(ListCoins, ListCoinsTestingSetup) // pubkey. AddTx(CRecipient{GetScriptForRawPubKey({}), 1 * COIN, false /* subtract fee */}); { - LOCK2(cs_main, wallet->cs_wallet); - list = wallet->ListCoins(*m_locked_chain); + auto locked_chain = m_chain->lock(); + LOCK(wallet->cs_wallet); + list = wallet->ListCoins(*locked_chain); } BOOST_CHECK_EQUAL(list.size(), 1U); BOOST_CHECK_EQUAL(boost::get(list.begin()->first).ToString(), coinbaseAddress); @@ -424,9 +428,10 @@ BOOST_FIXTURE_TEST_CASE(ListCoins, ListCoinsTestingSetup) // Lock both coins. Confirm number of available coins drops to 0. { - LOCK2(cs_main, wallet->cs_wallet); + auto locked_chain = m_chain->lock(); + LOCK(wallet->cs_wallet); std::vector available; - wallet->AvailableCoins(*m_locked_chain, available); + wallet->AvailableCoins(*locked_chain, available); BOOST_CHECK_EQUAL(available.size(), 2U); } for (const auto& group : list) { @@ -436,16 +441,18 @@ BOOST_FIXTURE_TEST_CASE(ListCoins, ListCoinsTestingSetup) } } { - LOCK2(cs_main, wallet->cs_wallet); + auto locked_chain = m_chain->lock(); + LOCK(wallet->cs_wallet); std::vector available; - wallet->AvailableCoins(*m_locked_chain, available); + wallet->AvailableCoins(*locked_chain, available); BOOST_CHECK_EQUAL(available.size(), 0U); } // Confirm ListCoins still returns same result as before, despite coins // being locked. { - LOCK2(cs_main, wallet->cs_wallet); - list = wallet->ListCoins(*m_locked_chain); + auto locked_chain = m_chain->lock(); + LOCK(wallet->cs_wallet); + list = wallet->ListCoins(*locked_chain); } BOOST_CHECK_EQUAL(list.size(), 1U); BOOST_CHECK_EQUAL(boost::get(list.begin()->first).ToString(), coinbaseAddress);