ThreadOS File System - CSS430 Final Project

This is an implementation of a working file system in Java for UW's ThreadOS. It emulates a UNIX file system with minor differences by implementing inodes, superblocks, file tables and entries, and other components. It is able to allocate and deallocate space, create a virtual directory, and handles active readers and/or writers accordingly.

More information on the project can be found here: https://courses.washington.edu/css430/prog/dimpsey/finalproject.html

Responsibilities

Egor Kolyshkin:

1. Superblock (block #0)

Methods:

• Superblock() – constructor
• sync()
• format()
• getFreeBlock()
• returnBlock()

2. FileTable

Methods:

• ffree() Similar to readers/writers problem

3. Kernel

• initial switch cases for file system manipulation

Tesfa Shenkute:

1. Directory

Methods:

• ialloc()
• ifree()
• namei()

2. FileTable

Methods:

• falloc() Similar to readers/writers problem

3. Kernel

• sear to perfection