RollbackState.cc

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#include "RollbackState.h"
#include "QGCLoggingCategory.h"
 
RollbackState::RollbackState(const QString& stateName, QState* parent,
                             ForwardAction forwardAction, RollbackAction rollbackAction)
    : QGCState(stateName, parent)
    , _forwardAction(std::move(forwardAction))
    , _rollbackAction(std::move(rollbackAction))
{
}
 
void RollbackState::onEnter()
{
    _wasRolledBack = false;
    _rollbackSucceeded = false;
 
    qCDebug(QGCStateMachineLog) << stateName() << "executing forward action";
 
    bool success = false;
    if (_forwardAction) {
        success = _forwardAction();
    }
 
    if (success) {
        qCDebug(QGCStateMachineLog) << stateName() << "forward action succeeded";
        emit forwardSucceeded();
        emit advance();
    } else {
        qCDebug(QGCStateMachineLog) << stateName() << "forward action failed, rolling back";
        emit forwardFailed();
 
        _wasRolledBack = true;
        emit rollingBack();
 
        if (_rollbackAction) {
            _rollbackAction();
            _rollbackSucceeded = true;
            qCDebug(QGCStateMachineLog) << stateName() << "rollback completed";
        }
 
        emit rollbackComplete();
        emit error();
    }
}