https://github.com/malhotrapulak/os_course_assignments

Assignments done as a part of the OS course
https://github.com/malhotrapulak/os_course_assignments

Last synced: about 13 hours ago
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Assignments done as a part of the OS course

• Host: GitHub
• URL: https://github.com/malhotrapulak/os_course_assignments
• Owner: MalhotraPulak
• Created: 2020-08-16T14:43:00.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-12-01T05:36:10.000Z (about 4 years ago)
• Last Synced: 2024-12-06T20:47:06.480Z (about 1 month ago)
• Language: C
• Homepage:
• Size: 96.7 MB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
### Assignments for OS Course in IIIT Hyderabad

- The final assignments are usually in a folder with name as roll number like "2019101050"

- This repo has the entire commit history of the assignments 

### Assignments 1

- Reversing the contents of a file using System Calls 

- Using stat structure to get information about a file in UNIX

### Assignment 2 

- Implementing your own Shell

- Reimplemented basic commands like ls, echo, pwd 

- Can call binaries 

- Some custom commands like pinfo and nightswatch

### Assignment 3 

- Adding Piping and redirection to Shell

- Adding jobs both bg and foreground

- Showing exit codes for the proccesses

### Assignment 4

- Multihreading and Multiproccessing

- Mergesort implementation (multiprocess and multithread) in the first question

- Two Async models modelled using threads, locks, CVs and semaphores for the other 2 questions

### Assignment 5

- Modified XV6 kernel proc structure and added system calls to support time command

- Added 3 schedulers including FCFS, MLFQ, PBS

- Added ps command and related system calls

### Assignment 6

- Simple networking model of client and server over TCP connection

- Client can requests file from server which are delivered if they exist on the server