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+//
+// ActiveRunnable.h
+//
+// Library: Foundation
+// Package: Threading
+// Module:  ActiveObjects
+//
+// Definition of the ActiveRunnable class.
+//
+// Copyright (c) 2004-2007, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef Foundation_ActiveRunnable_INCLUDED
+#define Foundation_ActiveRunnable_INCLUDED
+
+
+#include "Poco/Foundation.h"
+#include "Poco/ActiveResult.h"
+#include "Poco/Runnable.h"
+#include "Poco/RefCountedObject.h"
+#include "Poco/AutoPtr.h"
+#include "Poco/Exception.h"
+
+
+namespace Poco {
+
+
+class ActiveRunnableBase: public Runnable, public RefCountedObject
+	/// The base class for all ActiveRunnable instantiations.
+{
+public:
+	typedef AutoPtr<ActiveRunnableBase> Ptr;
+};
+
+
+template <class ResultType, class ArgType, class OwnerType>
+class ActiveRunnable: public ActiveRunnableBase
+	/// This class is used by ActiveMethod.
+	/// See the ActiveMethod class for more information.
+{
+public:
+	typedef ResultType (OwnerType::*Callback)(const ArgType&);
+	typedef ActiveResult<ResultType> ActiveResultType;
+
+	ActiveRunnable(OwnerType* pOwner, Callback method, const ArgType& arg, const ActiveResultType& result):
+		_pOwner(pOwner),
+		_method(method),
+		_arg(arg),
+		_result(result)
+	{
+		poco_check_ptr (pOwner);
+	}
+
+	void run()
+	{
+		ActiveRunnableBase::Ptr guard(this, false); // ensure automatic release when done
+		try
+		{
+			_result.data(new ResultType((_pOwner->*_method)(_arg)));
+		}
+		catch (Exception& e)
+		{
+			_result.error(e);
+		}
+		catch (std::exception& e)
+		{
+			_result.error(e.what());
+		}
+		catch (...)
+		{
+			_result.error("unknown exception");
+		}
+		_result.notify();
+	}
+
+private:
+	OwnerType* _pOwner;
+	Callback   _method;
+	ArgType    _arg;
+	ActiveResultType _result;
+};
+
+
+template <class ArgType, class OwnerType>
+class ActiveRunnable<void, ArgType, OwnerType>: public ActiveRunnableBase
+	/// This class is used by ActiveMethod.
+	/// See the ActiveMethod class for more information.
+{
+public:
+	typedef void (OwnerType::*Callback)(const ArgType&);
+	typedef ActiveResult<void> ActiveResultType;
+
+	ActiveRunnable(OwnerType* pOwner, Callback method, const ArgType& arg, const ActiveResultType& result):
+		_pOwner(pOwner),
+		_method(method),
+		_arg(arg),
+		_result(result)
+	{
+		poco_check_ptr (pOwner);
+	}
+
+	void run()
+	{
+		ActiveRunnableBase::Ptr guard(this, false); // ensure automatic release when done
+		try
+		{
+			(_pOwner->*_method)(_arg);
+		}
+		catch (Exception& e)
+		{
+			_result.error(e);
+		}
+		catch (std::exception& e)
+		{
+			_result.error(e.what());
+		}
+		catch (...)
+		{
+			_result.error("unknown exception");
+		}
+		_result.notify();
+	}
+
+private:
+	OwnerType* _pOwner;
+	Callback   _method;
+	ArgType    _arg;
+	ActiveResultType _result;
+};
+
+
+template <class ResultType, class OwnerType>
+class ActiveRunnable<ResultType, void, OwnerType>: public ActiveRunnableBase
+	/// This class is used by ActiveMethod.
+	/// See the ActiveMethod class for more information.
+{
+public:
+	typedef ResultType (OwnerType::*Callback)();
+	typedef ActiveResult<ResultType> ActiveResultType;
+
+	ActiveRunnable(OwnerType* pOwner, Callback method, const ActiveResultType& result):
+		_pOwner(pOwner),
+		_method(method),
+		_result(result)
+	{
+		poco_check_ptr (pOwner);
+	}
+
+	void run()
+	{
+		ActiveRunnableBase::Ptr guard(this, false); // ensure automatic release when done
+		try
+		{
+			_result.data(new ResultType((_pOwner->*_method)()));
+		}
+		catch (Exception& e)
+		{
+			_result.error(e);
+		}
+		catch (std::exception& e)
+		{
+			_result.error(e.what());
+		}
+		catch (...)
+		{
+			_result.error("unknown exception");
+		}
+		_result.notify();
+	}
+
+private:
+	OwnerType* _pOwner;
+	Callback   _method;
+	ActiveResultType _result;
+};
+
+
+template <class OwnerType>
+class ActiveRunnable<void, void, OwnerType>: public ActiveRunnableBase
+	/// This class is used by ActiveMethod.
+	/// See the ActiveMethod class for more information.
+{
+public:
+	typedef void (OwnerType::*Callback)();
+	typedef ActiveResult<void> ActiveResultType;
+
+	ActiveRunnable(OwnerType* pOwner, Callback method, const ActiveResultType& result):
+		_pOwner(pOwner),
+		_method(method),
+		_result(result)
+	{
+		poco_check_ptr (pOwner);
+	}
+
+	void run()
+	{
+		ActiveRunnableBase::Ptr guard(this, false); // ensure automatic release when done
+		try
+		{
+			(_pOwner->*_method)();
+		}
+		catch (Exception& e)
+		{
+			_result.error(e);
+		}
+		catch (std::exception& e)
+		{
+			_result.error(e.what());
+		}
+		catch (...)
+		{
+			_result.error("unknown exception");
+		}
+		_result.notify();
+	}
+
+private:
+	OwnerType* _pOwner;
+	Callback   _method;
+	ActiveResultType _result;
+};
+
+
+} // namespace Poco
+
+
+#endif // Foundation_ActiveRunnable_INCLUDED