Crate fs_core 

Pure-Rust block-device framework. The shared substrate every filesystem driver and disk-image reader plugs into.

See the crate-level README for the intended consumers and design.

Re-exports

pub use block::BlockDevice;

pub use block::BlockRead;

pub use caching_device::CachingDevice;

pub use callback_device::CallbackDevice;

pub use callback_device::FlushCb;

pub use callback_device::ReadCb;

pub use callback_device::WriteCb;

pub use error::Error;

pub use error::Result;

pub use file_device::FileDevice;

pub use readonly::ReadOnlyDevice;

pub use slice::OwnedRwSlice;

pub use slice::OwnedSlice;

pub use slice::SliceReader;

pub use stream::BlockReadStreamer;

Modules

block

Block-device traits.

caching_device

Small LRU read-cache decorator. Caches only block-aligned, block-sized reads; everything else passes through. Writes invalidate any overlapping cached entries.

callback_device

BlockDevice backed by host-process-owned callbacks. Used when the caller already holds the underlying resource (an FSKit FSBlockDeviceResource, a Go file handle, a C-side fd) and the Rust side just needs a trait surface to feed into a driver.

error

Unified error type. Each driver still keeps its own rich error type for internal use; conversions to/from this one happen at the trait boundary.

ffi

C ABI for the block-device framework.

file_device

File-backed BlockDevice. Used for disk images, raw /dev/diskN reads, anything that std::fs::File can address.

readonly

Read-only safety wrapper.

slice

Slice adapters — view a byte sub-range of any BlockRead as its own device. Useful any time you want to feed a fragment of a larger device to a consumer that expects a whole block source — partition probes, image-file extents, mmap-style views, fuzzer harnesses.

stream

std::io::Read + std::io::Seek adapter over any BlockRead.