A virtual file system implementation in Rust that simulates a Unix-like file system with support for files, directories, and advanced features like indirect block addressing for large files.

Features:

• Full File System Operations: Create, read, write, and delete files and directories

• Hierarchical Directory Structure: Support for nested directories with Unix-like paths

• Large File Support: Implements both direct and indirect block addressing for files up to 60KB+

• Metadata Management: Tracks creation and modification timestamps for all files

• Persistent Storage: All data is stored in a single binary file that can be mounted and unmounted

• Memory Efficient: Uses bitmap-based allocation for both inodes and data blocks

• Thread Safety: Designed with Rust's ownership principles for safe concurrent access

• Comprehensive Testing: Includes test suites for:

  • Concurrent operations
  • Crash recovery
  • Large file handling
  • Basic file operations
  • Data persistency

Arhitecture:

• SuperBlock: Stores file system metadata and layout information
• Inode Table: Manages file and directory metadata
• Data Blocks: 4KB blocks for storing actual file content
• Bitmap Allocation: Efficient tracking of free inodes and data blocks
• Direct & Indirect Blocks: Supports files of varying sizes efficiently

This project is open source and available under the MIT License.