Crate hadris_common 

Hadris Common

Shared types and utilities used across the Hadris filesystem crates.

This crate provides foundational types for working with on-disk filesystem structures, including endian-aware integers, extents, fixed-length filenames, path manipulation, and optical media constants.

Feature Flags

Feature	Default	Description
std	yes	Standard library support (CRC, chrono, rand)
alloc	via std	Heap allocation (String, Vec types)
bytemuck	yes	Zero-copy serialization for number types
optical	no	Optical media types for CD/DVD/Blu-ray
sync	via std	Synchronous I/O (forwarded to hadris-io)
async	no	Asynchronous I/O (forwarded to hadris-io)

Key Types

• Endian numbers: types::number::U16, types::number::U32, types::number::U64 — unsigned integers parameterized by endianness.
• Extent: types::extent::Extent — a contiguous region on disk (sector + length).
• FixedFilename: types::file::FixedFilename — a stack-allocated filename with a compile-time maximum length.
• EndianType / Endianness: types::endian::EndianType, types::endian::Endianness — runtime and compile-time endianness.

Example

use hadris_common::types::endian::{Endian, LittleEndian};
use hadris_common::types::number::U32;

let value = U32::<LittleEndian>::new(0x12345678);
assert_eq!(value.get(), 0x12345678);

Modules

alg

Algorithms (requires std for CRC and random) Utilities for working with algorithms.

path

Path utilities Path utilities shared across filesystem implementations.

str

Strings (requires alloc for String/Vec)

types

Types Contains utility types commonly used for filesystems.

Statics

BOOT_SECTOR_BIN

A generic 512-byte boot sector binary.