File: index_writer.h

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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_INDEXED_DB_INSTANCE_INDEX_WRITER_H_
#define CONTENT_BROWSER_INDEXED_DB_INSTANCE_INDEX_WRITER_H_

#include <stdint.h>

#include <map>
#include <memory>
#include <string>
#include <vector>

#include "content/browser/indexed_db/instance/backing_store.h"
#include "content/browser/indexed_db/instance/database.h"
#include "third_party/blink/public/common/indexeddb/indexeddb_key.h"

namespace blink {
struct IndexedDBObjectStoreMetadata;
}

namespace content::indexed_db {

class Transaction;

class IndexWriter {
 public:
  explicit IndexWriter(const blink::IndexedDBIndexMetadata& index_metadata);

  IndexWriter(const blink::IndexedDBIndexMetadata& index_metadata,
              std::vector<blink::IndexedDBKey> keys);

  [[nodiscard]] bool VerifyIndexKeys(BackingStore::Transaction* transaction,
                                     int64_t object_store_id,
                                     int64_t index_id,
                                     bool* can_add_keys,
                                     const blink::IndexedDBKey& primary_key,
                                     std::string* error_message) const;

  Status WriteIndexKeys(const BackingStore::RecordIdentifier& record,
                        BackingStore::Transaction* transaction,
                        int64_t object_store_id) const;

  IndexWriter(const IndexWriter&) = delete;
  IndexWriter& operator=(const IndexWriter&) = delete;

  ~IndexWriter();

 private:
  [[nodiscard]] bool AddingKeyAllowed(BackingStore::Transaction* transaction,
                                      int64_t object_store_id,
                                      int64_t index_id,
                                      const blink::IndexedDBKey& index_key,
                                      const blink::IndexedDBKey& primary_key,
                                      bool* allowed) const;

  const blink::IndexedDBIndexMetadata index_metadata_;
  const std::vector<blink::IndexedDBKey> keys_;
};

[[nodiscard]] bool MakeIndexWriters(
    Transaction* transaction,
    const blink::IndexedDBObjectStoreMetadata& metadata,
    const blink::IndexedDBKey& primary_key,
    bool key_was_generated,
    std::vector<blink::IndexedDBIndexKeys> index_keys,
    std::vector<std::unique_ptr<IndexWriter>>* index_writers,
    std::string* error_message,
    bool* completed);

}  // namespace content::indexed_db

#endif  // CONTENT_BROWSER_INDEXED_DB_INSTANCE_INDEX_WRITER_H_