Add IO to OpenEducation methodology

[Mihnea0Firoiu]

Prerequisite Checklist

• Read the contribution guidelines regarding submitting new changes to the project;
• Tested your changes against relevant architectures and platforms;
• Updated relevant documentation (if needed).

Description of changes

Align the IO course to the OpenEdu methodology.
Change the content of laboratories and change the "storyline" to:

• The Linux file-interface
  • file descriptors
  • file operations (I/O syscalls)
  • pipes and redirections
• Inter-process Communication
  • unix-sockets
  • network-sockets
  • client-server model
• Optimizations
  • I/O multiplexing
  • Async I/O
  • zero-copy

Besides these, in quides/ you can find adjacent topics not mandatory to finish the labs, such as file-descriptor table and open file table, file-mappings, kernel caching, and sendfile benchmarking.

[teodutu]

Check my comments to see some easy first fixes and also why the build fails. Then when it passes I'll make a more in-depth review.

• Move the task descriptions from the reading/ files to each task's README.md
• Remove references to the common makefiles (.../common/makefile/*.mk). Copy their content to each makefile that includes them so the tasks don't depend on outside resources.

[teodutu]

The build fails because chapters/io/arena/drills/tasks/mini-shell/ is missing its support/ folder which causes the Makefile symlink to point to an invalid path.

[github-actions]

Published at https://cs-pub-ro.github.io/operating-systems/75/

[Alex-deVis]

@razvand, since I also made changes to the content itself, I think you should also review this.

[Alex-deVis]

Why does this PR remove files from the compute/ and data/ chapters?

Generic stuff such as removing utils/sock if unused and fixing links. Take a look for yourself:

$ git diff main $(git diff --name-only main . | egrep -v sock_util | grep compute)

[teodutu]

I think you forgot to add a file or messed up its name: https://github.com/cs-pub-ro/operating-systems/actions/runs/12047113855/job/33588983238#step:6:227

[Alex-deVis]

I think you forgot to add a file or messed up its name: https://github.com/cs-pub-ro/operating-systems/actions/runs/12047113855/job/33588983238#step:6:227

I have no idea what happened - seems like the shared-memory task is not present in the current copy-on-write lab. Is this intended? I readded it to solve the issue.

[github-actions]

Published at https://cs-pub-ro.github.io/operating-systems/75/

[teodutu]

The slides are still empty [1] because you forgot to add the slides/ folders in each subchapter.

[1] https://cs-pub-ro.github.io/operating-systems/75/IO/

[Alex-deVis]

The slides are still empty [1] because you forgot to add the slides/ folders in each subchapter.

It was a subtle metaphor for the need of I/O. Anyway, check again.

[github-actions]

Published at https://cs-pub-ro.github.io/operating-systems/75/

[teodutu]

Fuck that Java error.