chromium/components/value_store/lazy_leveldb.cc

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/value_store/lazy_leveldb.h"

#include <string_view>

#include "base/json/json_reader.h"
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "base/metrics/histogram.h"
#include "base/strings/string_util.h"
#include "third_party/leveldatabase/env_chromium.h"
#include "third_party/leveldatabase/src/include/leveldb/iterator.h"
#include "third_party/leveldatabase/src/include/leveldb/write_batch.h"

namespace value_store {

namespace {

const char kInvalidJson[] = …;
const char kRestoredDuringOpen[] = …;

// UMA values used when recovering from a corrupted leveldb.
// Do not change/delete these values as you will break reporting for older
// copies of Chrome. Only add new values to the end.
enum LevelDBDatabaseCorruptionRecoveryValue { … };

// UMA values used when recovering from a corrupted leveldb.
// Do not change/delete these values as you will break reporting for older
// copies of Chrome. Only add new values to the end.
enum LevelDBValueCorruptionRecoveryValue { … };

ValueStore::StatusCode LevelDbToValueStoreStatusCode(
    const leveldb::Status& status) { … }

leveldb::Status DeleteValue(leveldb::DB* db, const std::string& key) { … }

}  // namespace

LazyLevelDb::LazyLevelDb(const std::string& uma_client_name,
                         const base::FilePath& path)
    : … { … }

LazyLevelDb::~LazyLevelDb() = default;

ValueStore::Status LazyLevelDb::Read(const std::string& key,
                                     std::optional<base::Value>* value) { … }

ValueStore::Status LazyLevelDb::Delete(const std::string& key) { … }

ValueStore::BackingStoreRestoreStatus LazyLevelDb::FixCorruption(
    const std::string* key) { … }

ValueStore::Status LazyLevelDb::EnsureDbIsOpen() { … }

ValueStore::Status LazyLevelDb::ToValueStoreError(
    const leveldb::Status& status) { … }

bool LazyLevelDb::DeleteDbFile() { … }

ValueStore::Status LazyLevelDb::CreateIterator(
    const leveldb::ReadOptions& read_options,
    std::unique_ptr<leveldb::Iterator>* iterator) { … }

}  // namespace value_store