Lesson 2 Exercise

Overview

Code Discussion

Project Tasks

• Task L2.1 : In method Vehicle::drive(), start up a task using std::async which takes a reference to the
  method Intersection::addVehicleToQueue, the object _currDestination and a shared pointer to this using the
  get_shared_this() function. Then, wait for the data to be available before proceeding to slow down.

• Task L2.2 : In method Intersection::addVehicleToQueue(), add the new vehicle to the waiting line by
  creating a promise, a corresponding future and then adding both to _waitingVehicles. Then wait until
  the vehicle has been granted entry.

• Task L2.3 : In method WaitingVehicles::permitEntryToFirstInQueue(), get the entries from the
  front of _promises and _vehicles. Then, fulfill promise and send signal back that permission to enter
  has been granted. Finally, remove the front elements from both queues.