fsfw/monitoring/MonitorBase.h
2020-12-03 18:24:51 +01:00

79 lines
2.2 KiB
C++

#ifndef FSFW_MONITORING_MONITORBASE_H_
#define FSFW_MONITORING_MONITORBASE_H_
#include "LimitViolationReporter.h"
#include "MonitoringIF.h"
#include "MonitoringMessageContent.h"
#include "MonitorReporter.h"
#include "../datapoollocal/LocalPoolVariable.h"
/**
* @brief Base class for monitoring of parameters.
* @details
* Can be used anywhere, specializations need to implement checkSample and
* should override sendTransitionEvent.
* Manages state handling, enabling and disabling of events/reports and
* forwarding of transition reports via MonitorReporter.
*
* In addition, it provides default implementations for fetching the
* parameter sample from the data pool and a simple confirmation counter.
*/
template<typename T>
class MonitorBase: public MonitorReporter<T> {
public:
MonitorBase(object_id_t reporterId, uint8_t monitorId,
gp_id_t globalPoolId, uint16_t confirmationLimit):
MonitorReporter<T>(reporterId, monitorId, globalPoolId,
confirmationLimit),
poolVariable(globalPoolId) {
}
virtual ~MonitorBase() {
}
virtual ReturnValue_t check() {
// 1. Fetch sample of type T, return validity.
T sample = 0;
ReturnValue_t validity = fetchSample(&sample);
// 2. If returning from fetch != OK, parameter is invalid.
// Report (if oldState is != invalidity).
if (validity != HasReturnvaluesIF::RETURN_OK) {
this->monitorStateIs(validity, sample, 0);
} else {
//3. Otherwise, check sample.
this->oldState = doCheck(sample);
}
return this->oldState;
}
virtual ReturnValue_t doCheck(T sample) {
T crossedLimit = 0.0;
ReturnValue_t currentState = checkSample(sample, &crossedLimit);
return this->monitorStateIs(currentState,sample, crossedLimit);
}
// Abstract or default.
virtual ReturnValue_t checkSample(T sample, T* crossedLimit) = 0;
protected:
virtual ReturnValue_t fetchSample(T* sample) {
ReturnValue_t result = poolVariable.read();
if(result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
if (not poolVariable.isValid()) {
return MonitoringIF::INVALID;
}
*sample = poolVariable.value;
return HasReturnvaluesIF::RETURN_OK;
}
LocalPoolVar<T> poolVariable;
};
#endif /* FSFW_MONITORING_MONITORBASE_H_ */