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liftController.cpp
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liftController.cpp
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#include "liftController.h"
#include <sstream>
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
template <class T> const T& min ( const T& a, const T& b ) {
return (a>b)?b:a; // or: return comp(a,b)?b:a; for the comp version
}
LiftController::LiftController(unsigned int liftsCount) :
log("LiftController") ,
liftStates(liftsCount, LiftState()) {
for (unsigned int i = 0; i < liftsCount; i++) {
LiftMailbox lMailbox(i);
liftMailboxes.push_back(lMailbox);
}
this->continuarSimulacion = true;
}
int LiftController::work() {
while(simRunning()) {
mailbox.receiveMessage(this);
}
log.info( "Termino el LiftController" );
log.debug( "Send exit to lift" );
// Send exit to each mailbox
std::vector<LiftMailbox>::iterator liftMailbox;
for(liftMailbox = liftMailboxes.begin();
liftMailbox != liftMailboxes.end();
liftMailbox++) {
liftMailbox->endWork();
}
log.debug( "Termino el LiftController ok" );
return 0;
}
LiftController::~LiftController() {
this->mailbox.close();
}
void LiftController::newLiftArrival(LiftState liftState) {
unsigned int liftId = liftState.getLiftId();
liftStates.at(liftId) = liftState;
if (liftState.hasPeopleToGetOff()) {
log.info( "Llegó un ascensor con gente!" );
liftMailboxes[liftId].getOff();
} else {
log.info( "Llegó un ascensor!" );
}
makeNextLiftMovement(liftState, liftState.getMovingDirection());
}
void LiftController::makeNextLiftMovement(LiftState liftState, MovingDirection preferredDirection) {
unsigned int liftId = liftState.getLiftId();
switch(preferredDirection) {
case NOT_MOVING:
if (peopleWaitingUp(liftState.getCurrentFloor())) {
moveLiftUp(liftId);
} else if (peopleWaitingDown(liftState.getCurrentFloor())) {
moveLiftDown(liftId);
} else {
liftStates.at(liftId).startMoving(NOT_MOVING);
log.info("Ascensor se detiene hasta que ingrese gente");
}
break;
case UP:
if (!liftState.isEmpty() || peopleWaitingUp(liftState.getCurrentFloor())) {
moveLiftUp(liftId);
} else {
makeNextLiftMovement(liftState, NOT_MOVING);
}
break;
case DOWN:
if (!liftState.isEmpty() || peopleWaitingDown(liftState.getCurrentFloor())) {
moveLiftDown(liftId);
} else {
makeNextLiftMovement(liftState, NOT_MOVING);
}
break;
}
}
void LiftController::moveLiftDown(unsigned int liftId) {
getOnDown(liftId);
liftStates.at(liftId).startMoving(DOWN);
liftMailboxes[liftId].travel(DOWN);
}
void LiftController::moveLiftUp(unsigned int liftId) {
getOnUp(liftId);
liftStates.at(liftId).startMoving(UP);
liftMailboxes[liftId].travel(UP);
}
void LiftController::newPersonArrival(Person person) {
peopleWaiting.push_back(person);
logPersonArrival(person);
std::vector<LiftState>::iterator state;
// Any lift stopped on this floor?
state = liftStates.begin();
while (state != liftStates.end() && (state->isMoving() ||
state->getCurrentFloor() != person.getArrivalFloor())) {
state++;
}
if (state != liftStates.end()) {
log.info( "Se encontró ascensor libre en el piso de la persona que llegó!" );
makeNextLiftMovement(*state, person.travelsDown() ? DOWN : UP);
return;
}
// Any lift travelling there => return
for(state = liftStates.begin();
state != liftStates.end();
state++) {
if (state->goingTo(person.getArrivalFloor())) {
log.info( "Había un ascensor en camino" );
return;
}
}
log.info( "Ningún ascensor estaba en camino" );
// Any lift not travelling? => put it to work
state = liftStates.begin();
while (state != liftStates.end() && state->isMoving()) {
state++;
}
if (state != liftStates.end()) {
log.info( "Se encontró ascensor libre!" );
// Direction cant be NOT_MOVING, because state-currentFloor != person.getArrivalFloor
MovingDirection direction =
state->getCurrentFloor() > person.getArrivalFloor() ? DOWN :
state->getCurrentFloor() < person.getArrivalFloor() ? UP : NOT_MOVING;
makeNextLiftMovement(*state, direction);
}
}
bool LiftController::peopleWaitingUp(unsigned int currentFloor) {
bool waitingUp = false;
std::vector<Person>::iterator person;
for(person = peopleWaiting.begin();
person != peopleWaiting.end();
person++) {
// Anyone in this floor wants to go up?
waitingUp |= person->getArrivalFloor() == currentFloor && person->travelsUp();
// Anyone in a floor above waiting?
waitingUp |= person->getArrivalFloor() > currentFloor;
}
if (waitingUp) {
log.info("Se encontró gente esperando arriba del piso actual");
}
return waitingUp;
}
bool LiftController::peopleWaitingDown(unsigned int currentFloor) {
bool waitingDown = false;
std::vector<Person>::iterator person;
for(person = peopleWaiting.begin();
person != peopleWaiting.end();
person++) {
// Anyone in this floor wants to go down?
waitingDown |= person->getArrivalFloor() == currentFloor && person->travelsDown();
// Anyone in a floor below waiting?
waitingDown |= person->getArrivalFloor() < currentFloor;
}
if (waitingDown) {
log.info("Se encontró gente esperando abajo del piso actual");
}
return waitingDown;
}
void LiftController::getOnUp(unsigned int liftId) {
LiftState liftState = liftStates[liftId];
if (liftState.isFull()) {
log.info("El ascensor estaba lleno");
return;
}
unsigned int currentFloor = liftState.getCurrentFloor();
unsigned int getOnCount = 0;
std::vector<Person>::iterator person;
person = peopleWaiting.begin();
while( getOnCount < liftState.getAvailableSpace() &&
person != peopleWaiting.end()) {
if (person->getArrivalFloor() == currentFloor && person->travelsUp()) {
log.info("Subiendo persona (sube)");
getOnCount++;
liftMailboxes[liftId].getOn(*person);
person = peopleWaiting.erase(person);
} else {
person++;
}
}
}
void LiftController::getOnDown(unsigned int liftId) {
LiftState liftState = liftStates[liftId];
if (liftState.isFull()) {
log.info("El ascensor estaba lleno");
return;
}
unsigned int currentFloor = liftState.getCurrentFloor();
unsigned int getOnCount = 0;
std::vector<Person>::iterator person;
person = peopleWaiting.begin();
while( getOnCount < liftState.getAvailableSpace() &&
person != peopleWaiting.end()) {
if (person->getArrivalFloor() == currentFloor && person->travelsDown()) {
log.info("Subiendo persona (baja)");
getOnCount++;
liftMailboxes[liftId].getOn(*person);
person = peopleWaiting.erase(person);
} else {
person++;
}
}
}
void LiftController::endPeopleGenerator() {
this->continuarSimulacion = false;
}
void LiftController::logPersonArrival(Person person) {
std::stringstream ss;
ss << "Person(" << person.getId() << "): " << "llegó al piso: " << person.getArrivalFloor() << " para viajar hasta " << person.getDestinationFloor();
log.info(ss.str().c_str());
}
bool LiftController::simRunning() {
return continuarSimulacion || peopleWaiting.size() > 0 || anyLiftMoving();
}
bool LiftController::anyLiftMoving() {
bool anyLiftMoving = false;
std::vector<LiftState>::iterator liftState;
for(liftState = liftStates.begin();
liftState != liftStates.end();
liftState++) {
anyLiftMoving |= liftState->isMoving();
}
return anyLiftMoving;
}