truck.cc

#include "truck.h"
#include "printer.h"
#include "nameserver.h"
#include "bottlingplant.h"
#include "printer.h"
#include "vendingmachine.h"

#include <iostream>

using namespace std;
extern MPRNG rand_gen;

Truck::Truck( Printer &prt, NameServer &nameServer, BottlingPlant &plant,
              unsigned int numVendingMachines, unsigned int maxStockPerFlavour ){
    print = &prt;
    this->nameServer = &nameServer;
    this->plant = &plant;
    this->numVendingMachines = numVendingMachines;
    this->maxStockPerFlavour = maxStockPerFlavour;
    for( int i = 0; i < 4; i++ ) {
        stock[i] = 0;
    }
    prt.print(Printer::Truck,'S');
}

Truck::~Truck(){
}

void Truck::main(){
    for(;;) {
        _Accept(Truck::~Truck) {
            return;
        } _Else {}
        VendingMachine **list = nameServer->getMachineList();
        int rand = rand_gen(1, 10);
        yield(rand);

	    unsigned int shipcount = 0;
        try {
	        plant->getShipment( stock );
        } catch ( BottlingPlant::Shutdown e ) {
	        print->print(Printer::Truck,'F');
	        return;
        } catch ( ... ) {
	        print->print(Printer::Truck,'F');
	        return;
	    }
	    //if do not throw, i get the shipment
	    for (unsigned int i=0;i<4;i++){
	        shipcount+=stock[i];
	    }
	    print->print(Printer::Truck,'P',shipcount);
        for( unsigned int i = 0; i < numVendingMachines; i++ ) {
	        unsigned int notFilled = 0;
	        if( shipcount <= 0 ) {
	            break;
	        }
	        unsigned int id = list[i]->getId();
	        unsigned int *inventory = list[i]->inventory();
	        print->print(Printer::Truck, 'd', id, shipcount); 
	        for( int j = 0; j < 4; j++ ) {
	            unsigned int fill = maxStockPerFlavour - inventory[j]; 
	            if ( stock[j] < fill ) {
	                fill = stock[j];
	            }
	            inventory[j]+= fill;
	            stock[j]-=fill;
	            shipcount-=fill;
	            notFilled = notFilled + (maxStockPerFlavour - inventory[j]);
	        }
	        if ( notFilled > 0 ) {
	            print->print(Printer::Truck, 'U', id, notFilled);
            } else {
	            print->print(Printer::Truck,'D', id, shipcount);
	        }
	        list[i]->restocked();
      }
   } 
}