base/message_pump_default.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 BASE_MESSAGE_PUMP_DEFAULT_H_
   6 #define BASE_MESSAGE_PUMP_DEFAULT_H_
   7 #pragma once
   8
   9 #include "base/message_pump.h"
  10 #include "base/time.h"
  11 #include "base/synchronization/waitable_event.h"
  12
  13 namespace base {
  14
  15 class MessagePumpDefault : public MessagePump {
  16  public:
  17   MessagePumpDefault();
  18
  19   // MessagePump methods:
  20   virtual void Run(Delegate* delegate) OVERRIDE;
  21   virtual void Quit() OVERRIDE;
  22   virtual void ScheduleWork() OVERRIDE;
  23   virtual void ScheduleDelayedWork(const TimeTicks& delayed_work_time) OVERRIDE;
  24
  25  protected:
  26   virtual ~MessagePumpDefault() {}
  27
  28  private:
  29   // This flag is set to false when Run should return.
  30   bool keep_running_;
  31
  32   // Used to sleep until there is more work to do.
  33   WaitableEvent event_;
  34
  35   // The time at which we should call DoDelayedWork.
  36   TimeTicks delayed_work_time_;
  37
  38   DISALLOW_COPY_AND_ASSIGN(MessagePumpDefault);
  39 };
  40
  41 }  // namespace base
  42
  43 #endif  // BASE_MESSAGE_PUMP_DEFAULT_H_