Prototype of Files service.

services/files/directory_impl.h

+// 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 SERVICES_FILES_DIRECTORY_IMPL_H_
+#define SERVICES_FILES_DIRECTORY_IMPL_H_
+
+#include "base/files/file_path.h"
+#include "base/files/scoped_file.h"
+#include "base/macros.h"
+#include "mojo/public/cpp/bindings/interface_request.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "services/files/directory.mojom.h"
+
+namespace mojo {
+namespace files {
+
+class DirectoryImpl : public Directory {
+ public:
+  // Set |owned_dir_name| (to nonempty) only if there's a directory that should
+  // be deleted when this object is destroyed.
+  DirectoryImpl(InterfaceRequest<Directory> request,
+                base::ScopedFD dir_fd,
+                const base::FilePath& owned_dir_name);
+  ~DirectoryImpl() override;
+
+  // |Directory| implementation:
+  void Read(
+      const Callback<void(Error, Array<DirectoryEntryPtr>)>& callback) override;
+  void Stat(const Callback<void(Error, FileInformationPtr)>& callback) override;
+  void Touch(TimespecOrNowPtr atime,
+             TimespecOrNowPtr mtime,
+             const Callback<void(Error)>& callback) override;
+  void OpenFile(const String& path,
+                InterfaceRequest<File> file,
+                uint32_t open_flags,
+                const Callback<void(Error)>& callback) override;
+  void OpenDirectory(const String& path,
+                     InterfaceRequest<Directory> directory,
+                     uint32_t open_flags,
+                     const Callback<void(Error)>& callback) override;
+  void Rename(const String& path,
+              const String& new_path,
+              const Callback<void(Error)>& callback) override;
+  void Delete(const String& path,
+              uint32_t delete_flags,
+              const Callback<void(Error)>& callback) override;
+
+ private:
+  StrongBinding<Directory> binding_;
+  base::ScopedFD dir_fd_;
+  base::FilePath owned_dir_name_;

[qsr, 2015/03/03 11:56:44]

It seems that you only use this with temporary directory. What do you think
about using base/files/scoped_temp_dir.h to not have to handle all of this
yourself?

[viettrungluu, 2015/03/03 18:50:35]

Done.

+
+  DISALLOW_COPY_AND_ASSIGN(DirectoryImpl);
+};
+
+}  // namespace files
+}  // namespace mojo
+
+#endif  // SERVICES_FILES_DIRECTORY_IMPL_H_