components/filesystem/file_impl.h

   1 // Copyright 2015 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_FILESYSTEM_FILE_IMPL_H_
   6 #define COMPONENTS_FILESYSTEM_FILE_IMPL_H_
   7
   8 #include "base/files/scoped_file.h"
   9 #include "base/macros.h"
  10 #include "components/filesystem/public/interfaces/directory.mojom.h"
  11 #include "mojo/public/cpp/bindings/interface_request.h"
  12 #include "mojo/public/cpp/bindings/strong_binding.h"
  13
  14 namespace filesystem {
  15
  16 class FileImpl : public File {
  17  public:
  18   // TODO(vtl): Will need more for, e.g., |Reopen()|.
  19   FileImpl(mojo::InterfaceRequest<File> request, base::ScopedFD file_fd);
  20   ~FileImpl() override;
  21
  22   // |File| implementation:
  23   void Close(const CloseCallback& callback) override;
  24   void Read(uint32_t num_bytes_to_read,
  25             int64_t offset,
  26             Whence whence,
  27             const ReadCallback& callback) override;
  28   void Write(mojo::Array<uint8_t> bytes_to_write,
  29              int64_t offset,
  30              Whence whence,
  31              const WriteCallback& callback) override;
  32   void ReadToStream(mojo::ScopedDataPipeProducerHandle source,
  33                     int64_t offset,
  34                     Whence whence,
  35                     int64_t num_bytes_to_read,
  36                     const ReadToStreamCallback& callback) override;
  37   void WriteFromStream(mojo::ScopedDataPipeConsumerHandle sink,
  38                        int64_t offset,
  39                        Whence whence,
  40                        const WriteFromStreamCallback& callback) override;
  41   void Tell(const TellCallback& callback) override;
  42   void Seek(int64_t offset,
  43             Whence whence,
  44             const SeekCallback& callback) override;
  45   void Stat(const StatCallback& callback) override;
  46   void Truncate(int64_t size, const TruncateCallback& callback) override;
  47   void Touch(TimespecOrNowPtr atime,
  48              TimespecOrNowPtr mtime,
  49              const TouchCallback& callback) override;
  50   void Dup(mojo::InterfaceRequest<File> file,
  51            const DupCallback& callback) override;
  52   void Reopen(mojo::InterfaceRequest<File> file,
  53               uint32_t open_flags,
  54               const ReopenCallback& callback) override;
  55   void AsBuffer(const AsBufferCallback& callback) override;
  56   void Ioctl(uint32_t request,
  57              mojo::Array<uint32_t> in_values,
  58              const IoctlCallback& callback) override;
  59
  60  private:
  61   mojo::StrongBinding<File> binding_;
  62   base::ScopedFD file_fd_;
  63
  64   DISALLOW_COPY_AND_ASSIGN(FileImpl);
  65 };
  66
  67 }  // namespace filesystem
  68
  69 #endif  // COMPONENTS_FILESYSTEM_FILE_IMPL_H_