michael@0: /*
michael@0:  * Copyright 2012 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: #ifndef SkCountdown_DEFINED
michael@0: #define SkCountdown_DEFINED
michael@0: 
michael@0: #include "SkCondVar.h"
michael@0: #include "SkRunnable.h"
michael@0: #include "SkTypes.h"
michael@0: 
michael@0: class SkCountdown : public SkRunnable {
michael@0: public:
michael@0:     explicit SkCountdown(int32_t count);
michael@0: 
michael@0:     /**
michael@0:      * Resets the countdown to the count provided.
michael@0:      */
michael@0:     void reset(int32_t count);
michael@0: 
michael@0:     virtual void run() SK_OVERRIDE;
michael@0: 
michael@0:     /**
michael@0:      * Blocks until run() has been called count times.
michael@0:      */
michael@0:     void wait();
michael@0: 
michael@0: private:
michael@0:     SkCondVar fReady;
michael@0:     int32_t   fCount;
michael@0: };
michael@0: 
michael@0: #endif