Struct SinkSource 

pub struct SinkSource<'a> { /* private fields */ }

The read half of a LocalSink, borrowed for as long as the zoom pass needs it.

Not LocalSource: that snapshots the length at open, which is exactly wrong for a file still being written. This one carries the sink’s own position, which is the only length that is true.

Trait Implementations

impl ByteSource for SinkSource<'_>

fn path(&self) -> &str

Path or URL this reads, for error messages.

fn len(&self) -> Result<u64>

Total length in bytes.

fn read_at(&self, offset: u64, len: usize) -> Result<Bytes>

Read up to len bytes at offset, returning fewer at end of file.

fn close(&self)

Release the underlying handle. Idempotent; reads after it fail with Error::Closed.

fn is_empty(&self) -> Result<bool>

fn read_exact_at(&self, offset: u64, len: usize) -> Result<Bytes>

Read exactly len bytes at offset; a short read is Error::Corrupt.

fn read_to_end(&self, offset: u64) -> Result<Bytes>

Read from offset to end of file.

fn prefetch(&self, _ranges: &[Range<u64>])

Announce ranges that are about to be read, so a source that can fetch them together does. A no-op unless overridden.

impl<'a> Debug for SinkSource<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.