This repository contains material required to complete exercises for the OS lab in the 2021 summer semester, including exercise sheets and their associated materials. Note that some of this material is based on previous years.
Make sure to read this document carefully, as it contains vital information regarding the grading of exercises.
This schedule gives you an overview of the topics we will discuss on each date. It will be updated continuously throughout the semester. Note that exercises associated with a given date are to be discussed on that day, i.e., solutions for that exercise have to be handed in via OLAT by 17:00 on the previous day (Tuesdays).
| Date | Exc | Topic | Notes |
|---|---|---|---|
| 2021-03-03 | - | Introduction to UNIX, shell scripting | |
| 2021-03-10 | 1 | Shell scripting | C Refresher |
| 2021-03-17 | 2 | Binary Search Tree | |
| 2021-03-24 | 3 | Processes, signal handling | |
| 2021-04-14 | 4 | FIFOs, pipes & sockets | |
| 2021-04-21 | 5 | Shared memory & semaphores | |
| 2021-04-28 | 6 | Scheduling simulator | |
| 2021-05-05 | 7 | Threads, mutexes & deadlocks | |
| 2021-05-12 | 8 | Atomics & condition variables | |
| 2021-05-19 | 9 | Threads advanced - Chat | |
| 2021-05-26 | 10 | Memory management |
All programming exercise solutions you hand in must compile properly on the ZID-GPL server. The easiest way of ensuring this is by developing on ZID-GPL directly, either through a terminal or using an editor/IDE with support for remote development via SSH (such as Visual Studio Code).
Note that the default version of the GCC compiler present on ZID-GPL is
extremely outdated. You may load a newer version by calling module load gcc/9.2.0.
NOTE: You have to be inside the University network to be able to connect via SSH. See here for more information.
To log into ZID-GPL via SSH, use the following command on Linux/Mac OSX:
ssh -l <username> zid-gpl.uibk.ac.at
On Windows, you can use Powershell (Windows 10) or a third-party SSH client such as PuTTY.
All programming exercises are conducted in C.
Your code should always compile without warnings, when passing the flags -Wall -Wextra -Werror -std=gnu11.
Make sure your code is properly
formatted using either your IDE/Text editor of choice, or by using a tool
such as clang-format. You can find an example
.clang-format file in this repository. Failure to
consistently format code may result in lower scores.
Try to write self-documenting code by choosing descriptive variable and
function names. While you may want to add comments to certain sections of
your code, try to avoid trivial comments such as fopen(...); // open file.
All names and comments should be written in English.
Finally, all submitted code must be accompanied by a GNU Makefile. That
is, your solution must be able to be compiled with a single call to make.
You can find an example Makefile and more information
here.
For some more specific topics such as proper error handling, check out our Frequently Asked Questions (FAQ).