CS110L-2020-Spring

This is the repository for recording my CS110L-2020-Spring homework.

Course Information

• Course Name: Safety in Systems Programming
• Course Number: CS110L
• Study Period: 2024.8.22-2024.8.26

Environment

• OS: Ubuntu 22.04
• IDE: Visual Studio Code
• rustc: 1.80.0

Project

Project 1 (The DEET Debugger):

Implement the DEET debugger (Dodgy Eliminator of Errors and Tragedies) to get the deets on those pesky bugs in your code.

There is a bug that the debugger cannot show the file name and line number on Ubuntu 22.04, but it works on Ubuntu 20.04, I have no idea why.

Implamentation

• Stopping, resuming, and restarting the inferior
• Printing a backtrace
• Print stopped location
• Setting breakpoints
• Continuing from breakpoints

Extensions

• Next line: like GDB next command
• Print source code on stop
• Print variables

Project 2 (Balancebeam):

Load balancers are a crucial component for providing scalability and availability to networked services, and in this assignment, you’ll feel out the internals of a load balancer and learn what makes them tick!

Implamentation

• Add multithreading
• Use asynchronous I/O
• Failover with passive health checks
• Failover with active health checks
• Rate limiting (fix window algorithm) Article