OpenPLC_v3/utils/dnp3_src/cpp/libs/include/opendnp3/app/EventCells.h

81 lines
2.2 KiB
C++

/*
* Licensed to Green Energy Corp (www.greenenergycorp.com) under one or
* more contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright ownership.
* Green Energy Corp licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This project was forked on 01/01/2013 by Automatak, LLC and modifications
* may have been made to this file. Automatak, LLC licenses these modifications
* to you under the terms of the License.
*/
#ifndef OPENDNP3_EVENTCELLS_H
#define OPENDNP3_EVENTCELLS_H
#include "opendnp3/app/EventType.h"
#include "opendnp3/gen/PointClass.h"
namespace opendnp3
{
/// A null object for types that have no metadata
struct EmptyEventCell
{
};
/// Base class for different types of event metadata
template <class Spec>
struct EventCellBase
{
PointClass clazz;
typename Spec::meas_t lastEvent;
typename Spec::event_variation_t evariation;
void SetEventValue(const typename Spec::meas_t& value)
{
lastEvent = value;
}
protected:
EventCellBase() : clazz(PointClass::Class1), lastEvent(), evariation(Spec::DefaultEventVariation)
{}
};
/// Metatype w/o a deadband
template <class Spec>
struct SimpleEventCell : EventCellBase<Spec>
{
bool IsEvent(const typename Spec::config_t& config, const typename Spec::meas_t& newValue) const
{
return Spec::IsEvent(this->lastEvent, newValue);
}
};
/// Structure for holding metadata information on points that have support deadbanding
template <class Spec>
struct DeadbandEventCell : SimpleEventCell<Spec>
{
bool IsEvent(const typename Spec::config_t& config, const typename Spec::meas_t& newValue) const
{
return Spec::IsEvent(this->lastEvent, newValue, config.deadband);
}
};
} //end namespace
#endif