berryISafeRunnable.h

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/*============================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.

Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.

============================================================================*/

#ifndef BERRYISAFERUNNABLE_H_
#define BERRYISAFERUNNABLE_H_

#include <berryObject.h>
#include <berryMacros.h>

#include <org_blueberry_core_runtime_Export.h>

namespace berry
{

struct org_blueberry_core_runtime_EXPORT ISafeRunnable: public Object
{

  berryObjectMacro(berry::ISafeRunnable);

  virtual void HandleException(const ctkException& exception) = 0;

  virtual void Run() = 0;
};

template<typename R>
struct SafeRunnableDelegate: public ISafeRunnable
{
  typedef void(R::*RunCallback)();
  typedef void(R::*HandleExcCallback)(const std::exception&);

  SafeRunnableDelegate(R* runnable, RunCallback func, HandleExcCallback handleFunc = 0) :
    m_Runnable(runnable), m_RunFunc(func), m_HandleExcFunc(handleFunc)
  {
  }

  void Run() override
  {
    m_Runnable->*m_RunFunc();
  }

  void HandleException(const ctkException& exception) override
  {
    if (m_HandleExcFunc)
      m_Runnable->*m_HandleExcFunc(exception);
  }

private:

  R* m_Runnable;
  RunCallback m_RunFunc;
  HandleExcCallback m_HandleExcFunc;

};

}

#endif /* BERRYISAFERUNNABLE_H_ */