af06d1a871
Summary: Transaction::RollbackToSavePoint() will now release any locks that were taken since the previous SavePoint. To do this cleanly, I moved tracked_keys_ management into TransactionBase. Test Plan: New Transaction test. Reviewers: igor, rven, sdong Reviewed By: sdong Subscribers: dhruba, spetrunia, leveldb Differential Revision: https://reviews.facebook.net/D46761
81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
// Copyright (c) 2015, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#pragma once
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#ifndef ROCKSDB_LITE
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#include <string>
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#include "rocksdb/db.h"
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#include "rocksdb/options.h"
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#include "rocksdb/utilities/transaction_db.h"
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#include "utilities/transactions/transaction_impl.h"
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#include "utilities/transactions/transaction_lock_mgr.h"
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namespace rocksdb {
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class TransactionDBImpl : public TransactionDB {
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public:
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explicit TransactionDBImpl(DB* db,
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const TransactionDBOptions& txn_db_options);
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~TransactionDBImpl() {}
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Transaction* BeginTransaction(const WriteOptions& write_options,
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const TransactionOptions& txn_options) override;
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using StackableDB::Put;
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virtual Status Put(const WriteOptions& options,
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ColumnFamilyHandle* column_family, const Slice& key,
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const Slice& val) override;
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using StackableDB::Delete;
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virtual Status Delete(const WriteOptions& wopts,
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ColumnFamilyHandle* column_family,
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const Slice& key) override;
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using StackableDB::Merge;
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virtual Status Merge(const WriteOptions& options,
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ColumnFamilyHandle* column_family, const Slice& key,
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const Slice& value) override;
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using StackableDB::Write;
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virtual Status Write(const WriteOptions& opts, WriteBatch* updates) override;
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using StackableDB::CreateColumnFamily;
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virtual Status CreateColumnFamily(const ColumnFamilyOptions& options,
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const std::string& column_family_name,
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ColumnFamilyHandle** handle) override;
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using StackableDB::DropColumnFamily;
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virtual Status DropColumnFamily(ColumnFamilyHandle* column_family) override;
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Status TryLock(TransactionImpl* txn, uint32_t cfh_id, const std::string& key);
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void UnLock(TransactionImpl* txn, const TransactionKeyMap* keys);
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void UnLock(TransactionImpl* txn, uint32_t cfh_id, const std::string& key);
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void AddColumnFamily(const ColumnFamilyHandle* handle);
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static TransactionDBOptions ValidateTxnDBOptions(
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const TransactionDBOptions& txn_db_options);
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const TransactionDBOptions& GetTxnDBOptions() const {
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return txn_db_options_;
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}
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private:
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const TransactionDBOptions txn_db_options_;
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TransactionLockMgr lock_mgr_;
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// Must be held when adding/dropping column families.
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InstrumentedMutex column_family_mutex_;
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Transaction* BeginInternalTransaction(const WriteOptions& options);
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Status WriteHelper(WriteBatch* updates, TransactionImpl* txn_impl);
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};
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} // namespace rocksdb
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#endif // ROCKSDB_LITE
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