Struct EntryBufferReader 

pub struct EntryBufferReader<'a, R> { /* private fields */ }

Decodes one log entry’s body — the read counterpart to EntryBufferWriter. Feeds bytes through the rolling hash and resolves dictionary-compressed UUIDs.

Implementations

impl<'a, R: BufRead> EntryBufferReader<'a, R>

pub fn new( reader: &'a mut Reader<R>, uuid_dict: &'a mut HashMap<u32, Uuid>, ) -> Self

Wrap reader, sharing uuid_dict to resolve UUID dictionary references across the entries of one segment.

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

Read a single byte.

pub fn read_bytes(&mut self, len: usize) -> Result<Vec<u8>, CodecError>

Read exactly len raw bytes.

pub fn read_varint(&mut self) -> Result<u64, CodecError>

Read an unsigned varint (7 data bits per byte, little-endian).

pub fn read_blob(&mut self) -> Result<Vec<u8>, CodecError>

Read a length-prefixed byte string (varint length, then the bytes).

pub fn read_u16_le(&mut self) -> Result<u16, CodecError>

Read a little-endian u16.

pub fn read_zigzag(&mut self) -> Result<i64, CodecError>

Read a zigzag-encoded signed varint.

pub fn read_delta(&mut self, last: u64) -> Result<u64, CodecError>

Read a delta-encoded timestamp. The wire stores the difference from last; the canonical hash sees the full absolute timestamp as fixed 8-byte little-endian (matching the writer).

pub fn read_uuid(&mut self) -> Result<Uuid, CodecError>

Read a UUID, resolving dictionary compression: a 0 sentinel means the 16 bytes follow inline (and are registered for later reuse); any other value is a 1-based index into the segment’s UUID dictionary.

pub fn finalize(self) -> Result<Hash, CodecError>

Verify the trailing 4-byte hash check against the canonical content hash. Returns the full hash on success.