expensive_operation_callback.h

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// Copyright 2015 Google Inc.

#ifndef PAGESPEED_CONTROLLER_EXPENSIVE_OPERATION_CALLBACK_H_
#define PAGESPEED_CONTROLLER_EXPENSIVE_OPERATION_CALLBACK_H_

#include "pagespeed/controller/central_controller_callback.h"
#include "pagespeed/kernel/base/basictypes.h"
#include "pagespeed/kernel/base/scoped_ptr.h"
#include "pagespeed/kernel/thread/sequence.h"


namespace net_instaweb {

class ExpensiveOperationContext {
 public:
  virtual ~ExpensiveOperationContext();

  virtual void Done() = 0;

 protected:
  ExpensiveOperationContext();

 private:
  
};

class ExpensiveOperationCallback
    : public CentralControllerCallback<ExpensiveOperationContext> {
 public:
  explicit ExpensiveOperationCallback(Sequence* sequence);
  virtual ~ExpensiveOperationCallback();

 private:
  virtual void RunImpl(scoped_ptr<ExpensiveOperationContext>* context) = 0;
  virtual void CancelImpl() = 0;

  
};

}  

#endif