cc/timer.h

   1 // Copyright 2011 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 CCTimer_h
   6 #define CCTimer_h
   7
   8 namespace cc {
   9
  10 class CCThread;
  11 class CCTimerTask;
  12
  13 class CCTimerClient {
  14 public:
  15     virtual ~CCTimerClient() { }
  16
  17     virtual void onTimerFired() = 0;
  18 };
  19
  20 class CCTimer {
  21 public:
  22     CCTimer(CCThread*, CCTimerClient*);
  23     ~CCTimer();
  24
  25     // If a previous task is pending, it will be replaced with the new one.
  26     void startOneShot(double intervalSeconds);
  27     void stop();
  28
  29     bool isActive() const { return m_task; }
  30
  31 private:
  32     friend class CCTimerTask;
  33
  34     CCTimerClient* m_client;
  35     CCThread* m_thread;
  36     CCTimerTask* m_task; // weak pointer
  37 };
  38
  39 }  // namespace cc
  40
  41 #endif