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89f66d4484
Summary: Useful for allowing new classes to create and manage Customizable objects without using internal APIs. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8301 Reviewed By: zhichao-cao Differential Revision: D29428303 Pulled By: mrambacher fbshipit-source-id: 3d33d5197cc8379fe35b54d3d169f91f0dfe7a47
66 lines
2.4 KiB
C++
66 lines
2.4 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include <mutex>
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#include "rocksdb/convenience.h"
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#include "rocksdb/table.h"
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#include "rocksdb/utilities/customizable_util.h"
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#include "rocksdb/utilities/object_registry.h"
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#include "table/block_based/block_based_table_factory.h"
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#include "table/cuckoo/cuckoo_table_factory.h"
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#include "table/plain/plain_table_factory.h"
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namespace ROCKSDB_NAMESPACE {
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static void RegisterTableFactories(const std::string& /*arg*/) {
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#ifndef ROCKSDB_LITE
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static std::once_flag loaded;
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std::call_once(loaded, []() {
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auto library = ObjectLibrary::Default();
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library->Register<TableFactory>(
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TableFactory::kBlockBasedTableName(),
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[](const std::string& /*uri*/, std::unique_ptr<TableFactory>* guard,
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std::string* /* errmsg */) {
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guard->reset(new BlockBasedTableFactory());
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return guard->get();
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});
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library->Register<TableFactory>(
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TableFactory::kPlainTableName(),
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[](const std::string& /*uri*/, std::unique_ptr<TableFactory>* guard,
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std::string* /* errmsg */) {
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guard->reset(new PlainTableFactory());
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return guard->get();
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});
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library->Register<TableFactory>(
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TableFactory::kCuckooTableName(),
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[](const std::string& /*uri*/, std::unique_ptr<TableFactory>* guard,
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std::string* /* errmsg */) {
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guard->reset(new CuckooTableFactory());
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return guard->get();
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});
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});
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#endif // ROCKSDB_LITE
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}
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static bool LoadFactory(const std::string& name,
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std::shared_ptr<TableFactory>* factory) {
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if (name == TableFactory::kBlockBasedTableName()) {
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factory->reset(new BlockBasedTableFactory());
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return true;
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} else {
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return false;
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}
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}
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Status TableFactory::CreateFromString(const ConfigOptions& config_options,
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const std::string& value,
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std::shared_ptr<TableFactory>* factory) {
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RegisterTableFactories("");
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return LoadSharedObject<TableFactory>(config_options, value, LoadFactory,
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factory);
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}
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} // namespace ROCKSDB_NAMESPACE
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