Struct btlib::BlockStream

pub struct BlockStream<T, C> { /* private fields */ }

A stream which is responsible for managing the metadata associated with a block, including validating and authenticating it. This type shouldn’t be instantiated direction, instead a BlockOpenOptions struct is used.

Trait Implementations

impl<T, C> AsMut<BlockMeta> for BlockStream<T, C>

fn as_mut(&mut self) -> &mut BlockMeta

Converts this type into a mutable reference of the (usually inferred) input type.

impl<T, C> AsRef<BlockMeta> for BlockStream<T, C>

fn as_ref(&self) -> &BlockMeta

Converts this type into a shared reference of the (usually inferred) input type.

impl<T, C> Decompose<(T, C)> for BlockStream<T, C>

fn into_inner(self) -> (T, C)

impl<T: WriteAt + Size, C: Signer> FlushMeta for BlockStream<T, C>

fn flush_meta(&mut self) -> Result<()>

Flushes metadata to persistent storage.

impl<T: ReadAt + Size, C> ReadAt for BlockStream<T, C>

fn read_at(&self, pos: u64, buf: &mut [u8]) -> Result<usize>

Reads bytes from an offset in this source into a buffer, returning how many bytes were read.

fn read_exact_at(&self, pos: u64, buf: &mut [u8]) -> Result<(), Error>

Reads the exact number of bytes required to fill buf from an offset.

impl<T, C> Sectored for BlockStream<T, C>

fn sector_sz(&self) -> usize

Returns the size of the sector for this stream.

fn sector_sz64(&self) -> u64

Returns the sector size as a u64.

fn assert_sector_sz(&self, actual: usize) -> Result<()>

Returns Err(Error::IncorrectSize) if the given size is not equal to the sector size.

fn assert_at_least_sector_sz(&self, actual: usize) -> Result<()>

Returns Err(Error::IncorrectSize) if the given size is less than the sector size.

fn offset_at(&self, index: u64) -> u64

Returns the offset (in bytes) from the beginning of this stream that the given 0-based sector index corresponds to.

impl<T: Size, C> Size for BlockStream<T, C>

fn size(&self) -> Result<Option<u64>>

Get the size of this object, in bytes.

impl<T: WriteAt + Size, C: Signer + Principaled + Decrypter> WriteAt for BlockStream<T, C>

fn write_at(&mut self, pos: u64, buf: &[u8]) -> Result<usize>

Writes bytes from a buffer to an offset, returning the number of bytes written.

fn flush(&mut self) -> Result<()>

Flush this writer, ensuring that any intermediately buffered data reaches its destination.

fn write_all_at(&mut self, pos: u64, buf: &[u8]) -> Result<(), Error>

Writes a complete buffer at an offset.

impl<T: WriteAt + Size, C: Signer + Principaled + Decrypter> WriteInteg for BlockStream<T, C>

fn flush_integ(&mut self, integrity: &[u8]) -> Result<()>