webkit/fileapi/file_system_task_runners.h

   1 // Copyright (c) 2012 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 WEBKIT_FILEAPI_FILE_SYSTEM_TASK_RUNNERS_H_
   6 #define WEBKIT_FILEAPI_FILE_SYSTEM_TASK_RUNNERS_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "webkit/storage/webkit_storage_export.h"
  11
  12 namespace base {
  13 class SequencedTaskRunner;
  14 class SingleThreadTaskRunner;
  15 }  // namespace
  16
  17 namespace fileapi {
  18
  19 WEBKIT_STORAGE_EXPORT extern const char kMediaTaskRunnerName[];
  20
  21 // This class holds task runners used for filesystem related stuff.
  22 class WEBKIT_STORAGE_EXPORT FileSystemTaskRunners {
  23  public:
  24   FileSystemTaskRunners(
  25       base::SingleThreadTaskRunner* io_task_runner,
  26       base::SingleThreadTaskRunner* file_task_runner,
  27       base::SequencedTaskRunner* media_task_runner);
  28
  29   ~FileSystemTaskRunners();
  30
  31   static scoped_ptr<FileSystemTaskRunners> CreateMockTaskRunners();
  32
  33   base::SingleThreadTaskRunner* io_task_runner() {
  34     return io_task_runner_.get();
  35   }
  36
  37   base::SingleThreadTaskRunner* file_task_runner() {
  38     return file_task_runner_.get();
  39   }
  40
  41   base::SequencedTaskRunner* media_task_runner() {
  42     return media_task_runner_.get();
  43   }
  44
  45  private:
  46   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
  47   scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
  48   scoped_refptr<base::SequencedTaskRunner> media_task_runner_;
  49
  50   DISALLOW_COPY_AND_ASSIGN(FileSystemTaskRunners);
  51 };
  52
  53 }  // namespace fileapi
  54
  55 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_TASK_RUNNERS_H_