components/leveldb_proto/leveldb_database.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_LEVELDB_PROTO_LEVELDB_DATABASE_H_
   6 #define COMPONENTS_LEVELDB_PROTO_LEVELDB_DATABASE_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/files/file_path.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/threading/thread_collision_warner.h"
  14
  15 namespace leveldb {
  16 class DB;
  17 }  // namespace leveldb
  18
  19 namespace leveldb_proto {
  20
  21 // Interacts with the LevelDB third party module.
  22 // Once constructed, function calls and destruction should all occur on the
  23 // same thread (not necessarily the same as the constructor).
  24 class LevelDB {
  25  public:
  26   LevelDB();
  27   virtual ~LevelDB();
  28
  29   virtual bool Init(const base::FilePath& database_dir);
  30   virtual bool Save(
  31       const std::vector<std::pair<std::string, std::string> >& pairs_to_save,
  32       const std::vector<std::string>& keys_to_remove);
  33   virtual bool Load(std::vector<std::string>* entries);
  34
  35  private:
  36   DFAKE_MUTEX(thread_checker_);
  37   scoped_ptr<leveldb::DB> db_;
  38 };
  39
  40 }  // namespace leveldb_proto
  41
  42 #endif  // COMPONENTS_LEVELDB_PROTO_LEVELDB_DATABASE_H_