Struct MemorySource 

pub struct MemorySource { /* private fields */ }

Implementations

impl MemorySource

pub fn new(data: impl Into<Bytes>) -> Self

pub fn named(path: &str, data: impl Into<Bytes>) -> Self

Trait Implementations

impl ByteSource for MemorySource

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 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.

fn close(&self)

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

impl Debug for MemorySource

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

Formats the value using the given formatter.