Struct NodeReader 

pub struct NodeReader<R: ReadBlock> { /* private fields */ }

Reads a node (file or directory) from the block storage.

Implementations

impl<R: ReadBlock> NodeReader<R>

pub fn new(main_block_ref: &BlockRef, reader: R) -> Result<Self, Error>

pub fn file(&self) -> &File

pub fn into_file(self) -> File

pub fn into_inner(self) -> R

pub fn read(&mut self, buf: &mut [u8]) -> Result<usize, Error>

pub fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>

pub fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>

pub fn seek(&mut self, position: u64) -> Result<(), Error>

Trait Implementations

impl<R: ReadBlock> Input for NodeReader<R>

fn remaining_len(&mut self) -> Result<Option<usize>, Error>

Should return the remaining length of the input data. If no information about the input length is available, None should be returned.

fn read(&mut self, into: &mut [u8]) -> Result<(), Error>

Read the exact number of bytes required to fill the given buffer.

fn read_byte(&mut self) -> Result<u8, Error>

Read a single byte from the input.

fn descend_ref(&mut self) -> Result<(), Error>

Descend into nested reference when decoding. This is called when decoding a new refence-based instance, such as Vec or Box. Currently, all such types are allocated on the heap.

fn ascend_ref(&mut self)

Ascend to previous structure level when decoding. This is called when decoding reference-based type is finished.

fn on_before_alloc_mem(&mut self, _size: usize) -> Result<(), Error>

Hook that is called before allocating memory on the heap.