chromium/components/services/storage/indexed_db/scopes/leveldb_scopes_coding.cc

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "components/services/storage/indexed_db/scopes/leveldb_scopes_coding.h"

#include <sstream>
#include <string_view>
#include <utility>

#include "base/containers/span.h"
#include "base/numerics/byte_conversions.h"
#include "components/services/storage/indexed_db/scopes/varint_coding.h"

namespace content {
namespace {

void EncodeBigEndianFixed64(uint64_t number, std::string* output) { … }

std::string_view MakeStringView(base::span<const uint8_t> bytes) { … }

}  // namespace

namespace leveldb_scopes {

std::tuple<bool, int64_t> ParseScopeMetadataId(
    leveldb::Slice key,
    base::span<const uint8_t> scopes_prefix) { … }

std::string KeyToDebugString(base::span<const uint8_t> key_without_prefix) { … }

}  // namespace leveldb_scopes

leveldb::Slice ScopesEncoder::GlobalMetadataKey(
    base::span<const uint8_t> scopes_prefix) { … }

leveldb::Slice ScopesEncoder::ScopeMetadataKey(
    base::span<const uint8_t> scopes_prefix,
    int64_t scope_number) { … }

leveldb::Slice ScopesEncoder::ScopeMetadataPrefix(
    base::span<const uint8_t> scopes_prefix) { … }

leveldb::Slice ScopesEncoder::TasksKeyPrefix(base::span<const uint8_t> prefix) { … }

leveldb::Slice ScopesEncoder::TasksKeyPrefix(base::span<const uint8_t> prefix,
                                             int64_t scope_number) { … }

leveldb::Slice ScopesEncoder::UndoTaskKeyPrefix(
    base::span<const uint8_t> prefix,
    int64_t scope_number) { … }

leveldb::Slice ScopesEncoder::CleanupTaskKeyPrefix(
    base::span<const uint8_t> prefix,
    int64_t scope_number) { … }

leveldb::Slice ScopesEncoder::UndoTaskKey(
    base::span<const uint8_t> scopes_prefix,
    int64_t scope_number,
    int64_t undo_sequence_number) { … }

leveldb::Slice ScopesEncoder::CleanupTaskKey(
    base::span<const uint8_t> scopes_prefix,
    int64_t scope_number,
    int64_t cleanup_sequence_number) { … }

}  // namespace content