components/gcm_driver/gcm_delayed_task_controller.h

   1 // Copyright 2014 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_GCM_DRIVER_GCM_DELAYED_TASK_CONTROLLER_H_
   6 #define COMPONENTS_GCM_DRIVER_GCM_DELAYED_TASK_CONTROLLER_H_
   7
   8 #include <vector>
   9
  10 #include "base/callback.h"
  11
  12 namespace gcm {
  13
  14 // Helper class to save tasks to run until we're ready to execute them.
  15 class GCMDelayedTaskController {
  16  public:
  17   GCMDelayedTaskController();
  18   ~GCMDelayedTaskController();
  19
  20   // Adds a task that will be invoked once we're ready.
  21   void AddTask(const base::Closure& task);
  22
  23   // Sets ready status, which will release all of the pending tasks.
  24   void SetReady();
  25
  26   // Returns true if it is ready to perform tasks.
  27   bool CanRunTaskWithoutDelay() const;
  28
  29  private:
  30   void RunTasks();
  31
  32   // Flag that indicates that controlled component is ready.
  33   bool ready_;
  34
  35   std::vector<base::Closure> delayed_tasks_;
  36
  37   DISALLOW_COPY_AND_ASSIGN(GCMDelayedTaskController);
  38 };
  39
  40 }  // namespace gcm
  41
  42 #endif  // COMPONENTS_GCM_DRIVER_GCM_DELAYED_TASK_CONTROLLER_H_