specialMailbox.cpp

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#include "specialMailbox.h"

#include <iostream>

#include "process.h"

using namespace Scheduler;

SpecialMailbox *SpecialMailbox::instance = nullptr;

SpecialMailbox *SpecialMailbox::getInstance()
{
    if (instance == nullptr)
        instance = new SpecialMailbox();
    return instance;
}




void SpecialMailbox::put(double currentTime, std::shared_ptr<Process> p)
{
    if (p == nullptr)
    {
        valid = false;
        return;
    }
    double period = p->getPeriod();
    double deadline = p->getDeadlineTime();
    double earliness = deadline - currentTime;
    
    if (earliness < period*fraction)
    {
        reward = maxCost*(earliness/(period*fraction)-1.0);
    }
    else
    {
        reward = 0.0;
    }
    valid = true;
}


double SpecialMailbox::get()
{
    return reward;
}


void SpecialMailbox::invalidate()
{
    valid = false;
}



bool SpecialMailbox::isValid()
{
    return valid;
}