Hadris Common

Shared types and utilities used by Hadris filesystem crates.

Overview

This crate provides common functionality needed across the Hadris workspace, including endian-aware types, extents, and optional optical-media types. New fixed-capacity buffers and text should use hadris-fixed, and new path code should use hadris-path; the old modules remain as deprecated compatibility forwarding surfaces.

Features

Endian Types - Little-endian and big-endian wrappers for integers
Extents - On-disk layout helpers used by ISO and related crates
CRC / time / rand - Available under the std feature
Optical media - Session and metadata helpers behind the optical feature
No-std Compatible - Works without the standard library

Feature Flags

Feature	Description	Default
`std`	Standard library support (CRC, chrono, rand; implies `sync`, `alloc`)	Yes
`alloc`	Heap allocation without full std	via `std`
`bytemuck`	Zero-copy serialization support	Yes
`optical`	Optical media types (`SessionInfo`, metadata writers)	No
`sync`	Synchronous I/O feature forwarded to `hadris-io` (for dependents)	via `std`
`async`	Asynchronous I/O feature forwarded to `hadris-io`	No

sync / async enable the matching hadris-io features for crates that depend on hadris-common. This crate does not re-export hadris-io traits at the root.

Usage

Endian Types

use hadris_common::types::endian::LittleEndian;
use hadris_common::types::number::U32;

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

Boot sector binary

assert_eq!(hadris_common::BOOT_SECTOR_BIN.len(), 512);
assert_eq!(hadris_common::BOOT_SECTOR_BIN[510], 0x55);
assert_eq!(hadris_common::BOOT_SECTOR_BIN[511], 0xAA);

For No-std Environments

[dependencies]
hadris-common = { version = "2.0.0-rc.2", default-features = false, features = ["alloc", "bytemuck"] }

Minimal (No Heap)

[dependencies]
hadris-common = { version = "2.0.0-rc.2", default-features = false, features = ["bytemuck"] }

License

Licensed under the MIT license.

hadris-common 2.0.0-rc.2