diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/wallet/bdb.cpp | 5 | ||||
-rw-r--r-- | src/wallet/bdb.h | 84 | ||||
-rw-r--r-- | src/wallet/db.h | 80 | ||||
-rw-r--r-- | src/wallet/walletdb.cpp | 38 | ||||
-rw-r--r-- | src/wallet/walletdb.h | 12 |
5 files changed, 129 insertions, 90 deletions
diff --git a/src/wallet/bdb.cpp b/src/wallet/bdb.cpp index 54a9aa34e0..44d1bafaf6 100644 --- a/src/wallet/bdb.cpp +++ b/src/wallet/bdb.cpp @@ -841,3 +841,8 @@ bool BerkeleyBatch::HasKey(CDataStream&& key) int ret = pdb->exists(activeTxn, datKey, 0); return ret == 0; } + +std::unique_ptr<BerkeleyBatch> BerkeleyDatabase::MakeBatch(const char* mode, bool flush_on_close) +{ + return MakeUnique<BerkeleyBatch>(*this, mode, flush_on_close); +} diff --git a/src/wallet/bdb.h b/src/wallet/bdb.h index 9cc42ddc06..e54776fc0d 100644 --- a/src/wallet/bdb.h +++ b/src/wallet/bdb.h @@ -93,6 +93,8 @@ std::shared_ptr<BerkeleyEnvironment> GetWalletEnv(const fs::path& wallet_path, s /** Return whether a BDB wallet database is currently loaded. */ bool IsBDBWalletLoaded(const fs::path& wallet_path); +class BerkeleyBatch; + /** An instance of this class represents one database. * For BerkeleyDB this is just a (env, strFile) tuple. **/ @@ -161,6 +163,9 @@ public: /** Database pointer. This is initialized lazily and reset during flushes, so it can be null. */ std::unique_ptr<Db> m_db; + /** Make a BerkeleyBatch connected to this database */ + std::unique_ptr<BerkeleyBatch> MakeBatch(const char* mode, bool flush_on_close); + private: std::string strFile; @@ -172,7 +177,7 @@ private: }; /** RAII class that provides access to a Berkeley database */ -class BerkeleyBatch +class BerkeleyBatch : public DatabaseBatch { /** RAII class that automatically cleanses its data on destruction */ class SafeDbt final @@ -195,10 +200,10 @@ class BerkeleyBatch }; private: - bool ReadKey(CDataStream&& key, CDataStream& value); - bool WriteKey(CDataStream&& key, CDataStream&& value, bool overwrite = true); - bool EraseKey(CDataStream&& key); - bool HasKey(CDataStream&& key); + bool ReadKey(CDataStream&& key, CDataStream& value) override; + bool WriteKey(CDataStream&& key, CDataStream&& value, bool overwrite = true) override; + bool EraseKey(CDataStream&& key) override; + bool HasKey(CDataStream&& key) override; protected: Db* pdb; @@ -211,71 +216,20 @@ protected: public: explicit BerkeleyBatch(BerkeleyDatabase& database, const char* pszMode = "r+", bool fFlushOnCloseIn=true); - ~BerkeleyBatch() { Close(); } + ~BerkeleyBatch() override { Close(); } BerkeleyBatch(const BerkeleyBatch&) = delete; BerkeleyBatch& operator=(const BerkeleyBatch&) = delete; - void Flush(); - void Close(); - - template <typename K, typename T> - bool Read(const K& key, T& value) - { - CDataStream ssKey(SER_DISK, CLIENT_VERSION); - ssKey.reserve(1000); - ssKey << key; - - CDataStream ssValue(SER_DISK, CLIENT_VERSION); - if (!ReadKey(std::move(ssKey), ssValue)) return false; - try { - ssValue >> value; - return true; - } catch (const std::exception&) { - return false; - } - } - - template <typename K, typename T> - bool Write(const K& key, const T& value, bool fOverwrite = true) - { - CDataStream ssKey(SER_DISK, CLIENT_VERSION); - ssKey.reserve(1000); - ssKey << key; - - CDataStream ssValue(SER_DISK, CLIENT_VERSION); - ssValue.reserve(10000); - ssValue << value; - - return WriteKey(std::move(ssKey), std::move(ssValue), fOverwrite); - } - - template <typename K> - bool Erase(const K& key) - { - CDataStream ssKey(SER_DISK, CLIENT_VERSION); - ssKey.reserve(1000); - ssKey << key; - - return EraseKey(std::move(ssKey)); - } - - template <typename K> - bool Exists(const K& key) - { - CDataStream ssKey(SER_DISK, CLIENT_VERSION); - ssKey.reserve(1000); - ssKey << key; - - return HasKey(std::move(ssKey)); - } + void Flush() override; + void Close() override; - bool StartCursor(); - bool ReadAtCursor(CDataStream& ssKey, CDataStream& ssValue, bool& complete); - void CloseCursor(); - bool TxnBegin(); - bool TxnCommit(); - bool TxnAbort(); + bool StartCursor() override; + bool ReadAtCursor(CDataStream& ssKey, CDataStream& ssValue, bool& complete) override; + void CloseCursor() override; + bool TxnBegin() override; + bool TxnCommit() override; + bool TxnAbort() override; }; std::string BerkeleyDatabaseVersion(); diff --git a/src/wallet/db.h b/src/wallet/db.h index 1322bf54fa..76668f8dc2 100644 --- a/src/wallet/db.h +++ b/src/wallet/db.h @@ -6,7 +6,9 @@ #ifndef BITCOIN_WALLET_DB_H #define BITCOIN_WALLET_DB_H +#include <clientversion.h> #include <fs.h> +#include <streams.h> #include <string> @@ -14,4 +16,82 @@ fs::path WalletDataFilePath(const fs::path& wallet_path); void SplitWalletPath(const fs::path& wallet_path, fs::path& env_directory, std::string& database_filename); +/** RAII class that provides access to a WalletDatabase */ +class DatabaseBatch +{ +private: + virtual bool ReadKey(CDataStream&& key, CDataStream& value) = 0; + virtual bool WriteKey(CDataStream&& key, CDataStream&& value, bool overwrite=true) = 0; + virtual bool EraseKey(CDataStream&& key) = 0; + virtual bool HasKey(CDataStream&& key) = 0; + +public: + explicit DatabaseBatch() {} + virtual ~DatabaseBatch() {} + + DatabaseBatch(const DatabaseBatch&) = delete; + DatabaseBatch& operator=(const DatabaseBatch&) = delete; + + virtual void Flush() = 0; + virtual void Close() = 0; + + template <typename K, typename T> + bool Read(const K& key, T& value) + { + CDataStream ssKey(SER_DISK, CLIENT_VERSION); + ssKey.reserve(1000); + ssKey << key; + + CDataStream ssValue(SER_DISK, CLIENT_VERSION); + if (!ReadKey(std::move(ssKey), ssValue)) return false; + try { + ssValue >> value; + return true; + } catch (const std::exception&) { + return false; + } + } + + template <typename K, typename T> + bool Write(const K& key, const T& value, bool fOverwrite = true) + { + CDataStream ssKey(SER_DISK, CLIENT_VERSION); + ssKey.reserve(1000); + ssKey << key; + + CDataStream ssValue(SER_DISK, CLIENT_VERSION); + ssValue.reserve(10000); + ssValue << value; + + return WriteKey(std::move(ssKey), std::move(ssValue), fOverwrite); + } + + template <typename K> + bool Erase(const K& key) + { + CDataStream ssKey(SER_DISK, CLIENT_VERSION); + ssKey.reserve(1000); + ssKey << key; + + return EraseKey(std::move(ssKey)); + } + + template <typename K> + bool Exists(const K& key) + { + CDataStream ssKey(SER_DISK, CLIENT_VERSION); + ssKey.reserve(1000); + ssKey << key; + + return HasKey(std::move(ssKey)); + } + + virtual bool StartCursor() = 0; + virtual bool ReadAtCursor(CDataStream& ssKey, CDataStream& ssValue, bool& complete) = 0; + virtual void CloseCursor() = 0; + virtual bool TxnBegin() = 0; + virtual bool TxnCommit() = 0; + virtual bool TxnAbort() = 0; +}; + #endif // BITCOIN_WALLET_DB_H diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp index 1e5c4da6d8..1478687bf9 100644 --- a/src/wallet/walletdb.cpp +++ b/src/wallet/walletdb.cpp @@ -121,7 +121,7 @@ bool WalletBatch::WriteCryptedKey(const CPubKey& vchPubKey, if (!WriteIC(key, std::make_pair(vchCryptedSecret, checksum), false)) { // It may already exist, so try writing just the checksum std::vector<unsigned char> val; - if (!m_batch.Read(key, val)) { + if (!m_batch->Read(key, val)) { return false; } if (!WriteIC(key, std::make_pair(val, checksum), true)) { @@ -166,8 +166,8 @@ bool WalletBatch::WriteBestBlock(const CBlockLocator& locator) bool WalletBatch::ReadBestBlock(CBlockLocator& locator) { - if (m_batch.Read(DBKeys::BESTBLOCK, locator) && !locator.vHave.empty()) return true; - return m_batch.Read(DBKeys::BESTBLOCK_NOMERKLE, locator); + if (m_batch->Read(DBKeys::BESTBLOCK, locator) && !locator.vHave.empty()) return true; + return m_batch->Read(DBKeys::BESTBLOCK_NOMERKLE, locator); } bool WalletBatch::WriteOrderPosNext(int64_t nOrderPosNext) @@ -177,7 +177,7 @@ bool WalletBatch::WriteOrderPosNext(int64_t nOrderPosNext) bool WalletBatch::ReadPool(int64_t nPool, CKeyPool& keypool) { - return m_batch.Read(std::make_pair(DBKeys::POOL, nPool), keypool); + return m_batch->Read(std::make_pair(DBKeys::POOL, nPool), keypool); } bool WalletBatch::WritePool(int64_t nPool, const CKeyPool& keypool) @@ -690,14 +690,14 @@ DBErrors WalletBatch::LoadWallet(CWallet* pwallet) LOCK(pwallet->cs_wallet); try { int nMinVersion = 0; - if (m_batch.Read(DBKeys::MINVERSION, nMinVersion)) { + if (m_batch->Read(DBKeys::MINVERSION, nMinVersion)) { if (nMinVersion > FEATURE_LATEST) return DBErrors::TOO_NEW; pwallet->LoadMinVersion(nMinVersion); } // Get cursor - if (!m_batch.StartCursor()) + if (!m_batch->StartCursor()) { pwallet->WalletLogPrintf("Error getting wallet database cursor\n"); return DBErrors::CORRUPT; @@ -709,13 +709,13 @@ DBErrors WalletBatch::LoadWallet(CWallet* pwallet) CDataStream ssKey(SER_DISK, CLIENT_VERSION); CDataStream ssValue(SER_DISK, CLIENT_VERSION); bool complete; - bool ret = m_batch.ReadAtCursor(ssKey, ssValue, complete); + bool ret = m_batch->ReadAtCursor(ssKey, ssValue, complete); if (complete) { break; } else if (!ret) { - m_batch.CloseCursor(); + m_batch->CloseCursor(); pwallet->WalletLogPrintf("Error reading next record from wallet database\n"); return DBErrors::CORRUPT; } @@ -745,7 +745,7 @@ DBErrors WalletBatch::LoadWallet(CWallet* pwallet) } catch (...) { result = DBErrors::CORRUPT; } - m_batch.CloseCursor(); + m_batch->CloseCursor(); // Set the active ScriptPubKeyMans for (auto spk_man_pair : wss.m_active_external_spks) { @@ -782,7 +782,7 @@ DBErrors WalletBatch::LoadWallet(CWallet* pwallet) // Last client version to open this wallet, was previously the file version number int last_client = CLIENT_VERSION; - m_batch.Read(DBKeys::VERSION, last_client); + m_batch->Read(DBKeys::VERSION, last_client); int wallet_version = pwallet->GetVersion(); pwallet->WalletLogPrintf("Wallet File Version = %d\n", wallet_version > 0 ? wallet_version : last_client); @@ -807,7 +807,7 @@ DBErrors WalletBatch::LoadWallet(CWallet* pwallet) return DBErrors::NEED_REWRITE; if (last_client < CLIENT_VERSION) // Update - m_batch.Write(DBKeys::VERSION, CLIENT_VERSION); + m_batch->Write(DBKeys::VERSION, CLIENT_VERSION); if (wss.fAnyUnordered) result = pwallet->ReorderTransactions(); @@ -843,13 +843,13 @@ DBErrors WalletBatch::FindWalletTx(std::vector<uint256>& vTxHash, std::list<CWal try { int nMinVersion = 0; - if (m_batch.Read(DBKeys::MINVERSION, nMinVersion)) { + if (m_batch->Read(DBKeys::MINVERSION, nMinVersion)) { if (nMinVersion > FEATURE_LATEST) return DBErrors::TOO_NEW; } // Get cursor - if (!m_batch.StartCursor()) + if (!m_batch->StartCursor()) { LogPrintf("Error getting wallet database cursor\n"); return DBErrors::CORRUPT; @@ -861,11 +861,11 @@ DBErrors WalletBatch::FindWalletTx(std::vector<uint256>& vTxHash, std::list<CWal CDataStream ssKey(SER_DISK, CLIENT_VERSION); CDataStream ssValue(SER_DISK, CLIENT_VERSION); bool complete; - bool ret = m_batch.ReadAtCursor(ssKey, ssValue, complete); + bool ret = m_batch->ReadAtCursor(ssKey, ssValue, complete); if (complete) { break; } else if (!ret) { - m_batch.CloseCursor(); + m_batch->CloseCursor(); LogPrintf("Error reading next record from wallet database\n"); return DBErrors::CORRUPT; } @@ -883,7 +883,7 @@ DBErrors WalletBatch::FindWalletTx(std::vector<uint256>& vTxHash, std::list<CWal } catch (...) { result = DBErrors::CORRUPT; } - m_batch.CloseCursor(); + m_batch->CloseCursor(); return result; } @@ -993,17 +993,17 @@ bool WalletBatch::WriteWalletFlags(const uint64_t flags) bool WalletBatch::TxnBegin() { - return m_batch.TxnBegin(); + return m_batch->TxnBegin(); } bool WalletBatch::TxnCommit() { - return m_batch.TxnCommit(); + return m_batch->TxnCommit(); } bool WalletBatch::TxnAbort() { - return m_batch.TxnAbort(); + return m_batch->TxnAbort(); } bool IsWalletLoaded(const fs::path& wallet_path) diff --git a/src/wallet/walletdb.h b/src/wallet/walletdb.h index 61e0f19e56..6b55361c07 100644 --- a/src/wallet/walletdb.h +++ b/src/wallet/walletdb.h @@ -183,12 +183,12 @@ private: template <typename K, typename T> bool WriteIC(const K& key, const T& value, bool fOverwrite = true) { - if (!m_batch.Write(key, value, fOverwrite)) { + if (!m_batch->Write(key, value, fOverwrite)) { return false; } m_database.IncrementUpdateCounter(); if (m_database.nUpdateCounter % 1000 == 0) { - m_batch.Flush(); + m_batch->Flush(); } return true; } @@ -196,19 +196,19 @@ private: template <typename K> bool EraseIC(const K& key) { - if (!m_batch.Erase(key)) { + if (!m_batch->Erase(key)) { return false; } m_database.IncrementUpdateCounter(); if (m_database.nUpdateCounter % 1000 == 0) { - m_batch.Flush(); + m_batch->Flush(); } return true; } public: explicit WalletBatch(WalletDatabase& database, const char* pszMode = "r+", bool _fFlushOnClose = true) : - m_batch(database, pszMode, _fFlushOnClose), + m_batch(database.MakeBatch(pszMode, _fFlushOnClose)), m_database(database) { } @@ -280,7 +280,7 @@ public: //! Abort current transaction bool TxnAbort(); private: - BerkeleyBatch m_batch; + std::unique_ptr<BerkeleyBatch> m_batch; WalletDatabase& m_database; }; |