StoredValueSensor Class Reference

Base class for sensors that compute a value on one thread, and want to make it available to consumers asynchronously. More...

#include <stored_value_sensor.h>

Inheritance diagram for StoredValueSensor:

Collaboration diagram for StoredValueSensor:

Public Member Functions
SensorResult	get () const final override
	StoredValueSensor (SensorType type, efidur_t timeoutNt)
void	invalidate ()
void	invalidate (UnexpectedCode why)
void	setValidValue (float value, efitick_t timestamp)
void	showInfo (const char *sensorName) const override
virtual void	setTimeout (int timeoutMs)
Public Member Functions inherited from Sensor
bool	Register ()
const char *	getSensorName () const
virtual bool	hasSensor () const
virtual float	getRaw () const
virtual bool	isRedundant () const
void	unregister ()
SensorType	type () const

Private Attributes
SensorResult	m_result
efidur_t	m_timeoutPeriod
efitick_t	m_lastUpdate = 0

Additional Inherited Members
Static Public Member Functions inherited from Sensor
static void	showAllSensorInfo ()
static void	showInfo (SensorType type)
static void	resetRegistry ()
static const Sensor *	getSensorOfType (SensorType type)
static SensorResult	get (SensorType type)
static float	getOrZero (SensorType type)
static float	getRaw (SensorType type)
static bool	isRedundant (SensorType type)
static bool	hasSensor (SensorType type)
static void	setMockValue (SensorType type, float value, bool mockRedundant=false)
static void	setInvalidMockValue (SensorType type)
static void	resetMockValue (SensorType type)
static void	resetAllMocks ()
static void	inhibitTimeouts (bool inhibit)
static const char *	getSensorName (SensorType type)
Protected Member Functions inherited from Sensor
	Sensor (SensorType type)
Static Protected Attributes inherited from Sensor
static bool	s_inhibitSensorTimeouts = false

Detailed Description

Base class for sensors that compute a value on one thread, and want to make it available to consumers asynchronously.

Common examples include sensors that have to do heavy lifting to produce a reading, and don't want to perform that conversion at the time of consumption.

To use this class, create a class for your sensor that inherits StoredValueSensor, and call Invalidate() and SetValidValue(float) as appropriate when readings are available (or known to be invalid) for your sensor.

Consumers will retrieve the last set (or invalidated) value.

Definition at line 30 of file stored_value_sensor.h.

Constructor & Destructor Documentation

StoredValueSensor()

StoredValueSensor::StoredValueSensor ( SensorType  type, efidur_t  timeoutNt  )

inline

Definition at line 54 of file stored_value_sensor.h.

        : Sensor(type)
        , m_result(unexpected)
        , m_timeoutPeriod(timeoutNt)
    {
    }

Member Function Documentation

get()

SensorResult StoredValueSensor::get ( ) const

inlinefinaloverridevirtual

Implements Sensor.

Definition at line 32 of file stored_value_sensor.h.

                                            {
        auto result = m_result;
 
        // Timeouts are disabled, return last value
        if (Sensor::s_inhibitSensorTimeouts) {
            return result;
        }
 
        // Result is already failed, return that so that we get the real error code instead of a timeout
        if (!result) {
            return result;
        }
 
        if (m_timeoutPeriod != 0) { // zero m_timeoutPeriod means value lasts forever
            if (getTimeNowNt() - m_timeoutPeriod > m_lastUpdate) {
                return UnexpectedCode::Timeout;
            }
        }
 
        return result;
    }

Referenced by RpmCalculator::showInfo(), MapAverager::showInfo(), CanSensorBase::showInfo(), FuelLevelSensor::showInfo(), FunctionalSensor::showInfo(), showInfo(), and Lps25Sensor::showInfo().

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invalidate() [1/2]

void StoredValueSensor::invalidate ( )

inline

Definition at line 62 of file stored_value_sensor.h.

                      {
        m_result = unexpected;
    }

Referenced by AemXSeriesWideband::decodeAemXSeries(), AemXSeriesWideband::decodeRusefiStandard(), flexCallback(), HellaOilLevelSensor::onEdge(), and Lps25Sensor::update().

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invalidate() [2/2]

void StoredValueSensor::invalidate ( UnexpectedCode  why )

inline

Definition at line 67 of file stored_value_sensor.h.

                                        {
        m_result = why;
    }

setTimeout()

virtual void StoredValueSensor::setTimeout ( int  timeoutMs )

inlinevirtual

Definition at line 80 of file stored_value_sensor.h.

                                           {
        m_timeoutPeriod = MS2NT(timeoutMs);
    }

setValidValue()

void StoredValueSensor::setValidValue ( float  value, efitick_t  timestamp  )

inline

Definition at line 72 of file stored_value_sensor.h.

                                                         {
        // Set value before valid - so we don't briefly have the valid bit set on an invalid value
        m_result = value;
        m_lastUpdate = timestamp;
    }

Referenced by RpmCalculator::assignRpmValue(), configureRusefiLuaHooks(), AemXSeriesWideband::decodeAemXSeries(), CanSensor< TStorage, TScale >::decodeFrame(), ObdCanSensor< Size, Offset >::decodeFrame(), AemXSeriesEgt::decodeFrame(), AemXSeriesWideband::decodeRusefiStandard(), flexCallback(), getAfr(), HellaOilLevelSensor::onEdge(), processCanRxVss(), processHyundai(), processNissanSecondVss(), AemXSeriesWideband::refreshSmoothedLambda(), sentTpsDecode(), MapAverager::stop(), and Lps25Sensor::update().

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showInfo()

void StoredValueSensor::showInfo ( const char *  sensorName ) const

overridevirtual

Implements Sensor.

Definition at line 17 of file sensor_info_printing.cpp.

                                                             {
    const auto value = get();
    efiPrintf("StoredValue Sensor \"%s\": valid: %s, value: %.2f", sensorName, boolToString(value.Valid), value.Value);
}

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Field Documentation

m_lastUpdate

efitick_t StoredValueSensor::m_lastUpdate = 0

private

Definition at line 88 of file stored_value_sensor.h.

Referenced by get(), and setValidValue().

m_result

SensorResult StoredValueSensor::m_result

private

Definition at line 85 of file stored_value_sensor.h.

Referenced by get(), invalidate(), invalidate(), and setValidValue().

m_timeoutPeriod

efidur_t StoredValueSensor::m_timeoutPeriod

private

Definition at line 87 of file stored_value_sensor.h.

Referenced by get(), and setTimeout().

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The documentation for this class was generated from the following files:

• controllers/sensors/core/stored_value_sensor.h
• controllers/sensors/sensor_info_printing.cpp