void *cycle(void *arg) {
/*
* This function will be executed as the body of each child thread.
* It expects a single parameter that is an int (an ID for the
* Philosopher).
*
* The parameter is a void * to comply with the prototype, but we know
* what's really in there.
*/
int philosopher_id = *(int *) arg;
Philosopher *phil = &phils[philosopher_id];
int i = 0;
for (i = 0; i < number_of_times_to_cycle; i++) {
/************************************************
* At first, I'm hungry. I want to EAT.
************************************************/
// Attempt to pick up forks.
if (phil->id % 2 == 0) {
// Evens pick up right-hand forks first.
pick_up_fork(phil, &forks[phil->des_right_fork]);
pick_up_fork(phil, &forks[phil->des_left_fork]);
} else {
// Odds pick up left-hand forks first.
pick_up_fork(phil, &forks[phil->des_left_fork]);
pick_up_fork(phil, &forks[phil->des_right_fork]);
}
// Switch to EATING state.
change_state(phil, EATING);
// Eat for a bit (sleep the thread).
dawdle(phil);
// Switch to CHANGING state.
change_state(phil, CHANGING);
/*************************************************
* Now that I've finished EATING, I want to THINK.
*************************************************/
// Attempt to put down forks.
put_down_fork(phil, &forks[phil->des_left_fork]);
put_down_fork(phil, &forks[phil->des_right_fork]);
// Switch to THINKING state.
change_state(phil, THINKING);
// Think for a bit (sleep the thread).
dawdle(phil);
// Switch to CHANGING state.
change_state(phil, CHANGING);
}
// Kill the pthread.
pthread_exit(NULL );
}
SUMOReal
MSCFModel_SmartSK::moveHelper(MSVehicle* const veh, SUMOReal vPos) const {
const SUMOReal oldV = veh->getSpeed(); // save old v for optional acceleration computation
const SUMOReal vSafe = MIN2(vPos, veh->processNextStop(vPos)); // process stops
// we need the acceleration for emission computation;
// in this case, we neglect dawdling, nonetheless, using
// vSafe does not incorporate speed reduction due to interaction
// on lane changing
const SUMOReal vMin = getSpeedAfterMaxDecel(oldV);
const SUMOReal vMax = MIN3(veh->getLane()->getVehicleMaxSpeed(veh), maxNextSpeed(oldV, veh), vSafe);
#ifdef _DEBUG
if (vMin > vMax) {
WRITE_WARNING("Vehicle's '" + veh->getID() + "' maximum speed is lower than the minimum speed (min: " + toString(vMin) + ", max: " + toString(vMax) + ").");
}
#endif
updateMyHeadway(veh);
SSKVehicleVariables* vars = (SSKVehicleVariables*)veh->getCarFollowVariables();
#ifdef _DEBUG
if (vars->ggOld.size() > 1) {
std::cout << "# more than one entry in ggOld list. Speed is " << vPos << ", corresponding dist is " << vars->ggOld[(int) vPos] << "\n";
for (std::map<int, SUMOReal>::iterator I = vars->ggOld.begin(); I != vars->ggOld.end(); I++) {
std::cout << "# " << (*I).first << ' ' << (*I).second << std::endl;
}
}
#endif
vars->gOld = vars->ggOld[(int) vPos];
vars->ggOld.clear();
return veh->getLaneChangeModel().patchSpeed(vMin, MAX2(vMin, dawdle(vMax)), vMax, *this);
}
void think(int id) {
state[id] = THINKING;
printStatusLine();
/* Sleep for a random amount of time */
dawdle();
}
void eat(int id) {
state[id] = EATING;
printStatusLine();
/* Sleep for a random amount of time */
dawdle();
}
void *thread(void *args) {
int i,val;
int arg = *((int*)args);
for (i= 0; i<NLOOP; i++) {
pthread_mutex_lock(&mutex);
val= counter;
dawdle(arg);
printf("Thread %lu: %d\n",pthread_self(),val+1);
counter= val+1;
pthread_mutex_unlock(&mutex);
}
pthread_exit(NULL);
}
SUMOReal
MSCFModel_Daniel1::moveHelper(MSVehicle* const veh, SUMOReal vPos) const {
const SUMOReal oldV = veh->getSpeed(); // save old v for optional acceleration computation
const SUMOReal vSafe = MIN2(vPos, veh->processNextStop(vPos)); // process stops
// we need the acceleration for emission computation;
// in this case, we neglect dawdling, nonetheless, using
// vSafe does not incorporate speed reduction due to interaction
// on lane changing
const SUMOReal vMin = getSpeedAfterMaxDecel(oldV);
const SUMOReal vMax = MIN3(veh->getLane()->getVehicleMaxSpeed(veh), maxNextSpeed(oldV, veh), vSafe);
#ifdef _DEBUG
if (vMin > vMax) {
WRITE_WARNING("Vehicle's '" + veh->getID() + "' maximum speed is lower than the minimum speed (min: " + toString(vMin) + ", max: " + toString(vMax) + ").");
}
#endif
return veh->getLaneChangeModel().patchSpeed(vMin, MAX2(vMin, dawdle(vMax)), vMax, *this);
}
SUMOReal
MSCFModel_KraussOrig1::moveHelper(MSVehicle * const veh, const MSLane * const lane, SUMOReal vPos) const throw() {
SUMOReal oldV = veh->getSpeed(); // save old v for optional acceleration computation
SUMOReal vSafe = MIN2(vPos, veh->processNextStop(vPos)); // process stops
// we need the acceleration for emission computation;
// in this case, we neglect dawdling, nonetheless, using
// vSafe does not incorporate speed reduction due to interaction
// on lane changing
veh->setPreDawdleAcceleration(SPEED2ACCEL(vSafe-oldV));
//
SUMOReal vNext = dawdle(MIN3(lane->getMaxSpeed(), maxNextSpeed(oldV), vSafe));
vNext =
veh->getLaneChangeModel().patchSpeed(
MAX2((SUMOReal) 0, oldV-(SUMOReal)ACCEL2SPEED(myDecel)), //!!! reverify
vNext,
MIN3(vSafe, veh->getLane().getMaxSpeed(), maxNextSpeed(oldV)),//vaccel(myState.mySpeed, myLane->maxSpeed())),
vSafe);
return MIN4(vNext, vSafe, veh->getLane().getMaxSpeed(), maxNextSpeed(oldV));
}
