text: // Copyright 2015 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 COMPONENTS_FILESYSTEM_FILE_IMPL_H_
  #define COMPONENTS_FILESYSTEM_FILE_IMPL_H_
  
  #include <stdint.h>
  
  #include "base/files/file.h"
  #include "base/files/scoped_file.h"
  #include "base/macros.h"
  #include "components/filesystem/public/interfaces/directory.mojom.h"
  #include "mojo/public/cpp/bindings/interface_request.h"
  #include "mojo/public/cpp/bindings/strong_binding.h"
  
  namespace base {
  class FilePath;
  }
  
  namespace filesystem {
  
  class FileImpl : public File {
   public:
    FileImpl(mojo::InterfaceRequest<File> request,
             const base::FilePath& path,
             uint32_t flags);
    FileImpl(mojo::InterfaceRequest<File> request, base::File file);
    ~FileImpl() override;
  
    // |File| implementation:
    void Close(const CloseCallback& callback) override;
    void Read(uint32_t num_bytes_to_read,
              int64_t offset,
              Whence whence,
              const ReadCallback& callback) override;
    void Write(mojo::Array<uint8_t> bytes_to_write,
               int64_t offset,
               Whence whence,
               const WriteCallback& callback) override;
    void Tell(const TellCallback& callback) override;
    void Seek(int64_t offset,
              Whence whence,
              const SeekCallback& callback) override;
    void Stat(const StatCallback& callback) override;
    void Truncate(int64_t size, const TruncateCallback& callback) override;
    void Touch(TimespecOrNowPtr atime,
               TimespecOrNowPtr mtime,
               const TouchCallback& callback) override;
    void Dup(mojo::InterfaceRequest<File> file,
             const DupCallback& callback) override;
    void Flush(const FlushCallback& callback) override;
    void AsHandle(const AsHandleCallback& callback) override;
  
   private:
    mojo::StrongBinding<File> binding_;
    base::File file_;
  
    DISALLOW_COPY_AND_ASSIGN(FileImpl);
  };
  
  }  // namespace filesystem
  
  #endif  // COMPONENTS_FILESYSTEM_FILE_IMPL_H_
  