Lesson 3 Exercise

Overview

ND213 C04 L03 C3.4-Atom 1

Details

ND213 C04 L03 C3-4-A2

Project Tasks

Task L3.1 : In class WaitingVehicles, safeguard all accesses to the private members _vehicles and _promises with an appropriate locking mechanism, that will not cause a deadlock situation where access to the resources is accidentally blocked.
Task L2.2 : Add a static mutex to the base class TrafficObject (called _mtxCout) and properly instantiate it in the source file. This mutex will be used in the next task to protect standard-out.
Task L2.3 : In method Intersection::addVehicleToQueue and in Vehicle::drive() ensure that the text output locks the console as a shared resource. Use the mutex _mtxCout you have added to the base class TrafficObject in the previous task. Make sure that in between the two calls to std::cout at the beginning and at the end of addVehicleToQueue the lock is not held.

Workspace

This section contains either a workspace (it can be a Jupyter Notebook workspace or an online code editor work space, etc.) and it cannot be automatically downloaded to be generated here. Please access the classroom with your account and manually download the workspace to your local machine. Note that for some courses, Udacity upload the workspace files onto https://github.com/udacity, so you may be able to download them there.

Workspace Information:

Default file path:
Workspace type: react
Opened files (when workspace is loaded): n/a
userCode:
export CXX=g++-7