text: // Copyright 2016 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef SERVICES_FILE_FILE_SERVICE_H_
  #define SERVICES_FILE_FILE_SERVICE_H_
  
  #include "base/callback_forward.h"
  #include "base/memory/ref_counted.h"
  #include "components/filesystem/lock_table.h"
  #include "components/leveldb/public/interfaces/leveldb.mojom.h"
  #include "mojo/public/cpp/bindings/binding_set.h"
  #include "services/file/public/interfaces/file_system.mojom.h"
  #include "services/service_manager/public/cpp/interface_factory.h"
  #include "services/service_manager/public/cpp/service.h"
  
  namespace file {
  
  std::unique_ptr<service_manager::Service> CreateFileService(
      scoped_refptr<base::SingleThreadTaskRunner> file_service_runner,
      scoped_refptr<base::SingleThreadTaskRunner> leveldb_service_runner);
  
  class FileService
      : public service_manager::Service,
        public service_manager::InterfaceFactory<mojom::FileSystem>,
        public service_manager::InterfaceFactory<leveldb::mojom::LevelDBService> {
   public:
    FileService(
        scoped_refptr<base::SingleThreadTaskRunner> file_service_runner,
        scoped_refptr<base::SingleThreadTaskRunner> leveldb_service_runner);
    ~FileService() override;
  
   private:
    // |Service| override:
    void OnStart() override;
    bool OnConnect(const service_manager::ServiceInfo& remote_info,
                   service_manager::InterfaceRegistry* registry) override;
  
    // |InterfaceFactory<mojom::FileSystem>| implementation:
    void Create(const service_manager::Identity& remote_identity,
                mojom::FileSystemRequest request) override;
  
    // |InterfaceFactory<LevelDBService>| implementation:
    void Create(const service_manager::Identity& remote_identity,
                leveldb::mojom::LevelDBServiceRequest request) override;
  
    void OnLevelDBServiceError();
  
    scoped_refptr<base::SingleThreadTaskRunner> file_service_runner_;
    scoped_refptr<base::SingleThreadTaskRunner> leveldb_service_runner_;
  
    // We create these two objects so we can delete them on the correct task
    // runners.
    class FileSystemObjects;
    std::unique_ptr<FileSystemObjects> file_system_objects_;
  
    class LevelDBServiceObjects;
    std::unique_ptr<LevelDBServiceObjects> leveldb_objects_;
  
    DISALLOW_COPY_AND_ASSIGN(FileService);
  };
  
  }  // namespace file
  
  #endif  // SERVICES_FILE_FILE_SERVICE_H_
  