Struct TlvReader 

pub struct TlvReader { /* private fields */ }

Zero-copy TLV reader over a Bytes buffer.

Every slice returned by this reader is a sub-slice of the original Bytes, sharing the same reference-counted allocation — no copies.

Implementations

impl TlvReader

pub fn new(buf: Bytes) -> Self

pub fn remaining(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn position(&self) -> usize

Current byte position within the original buffer.

pub fn read_type(&mut self) -> Result<u64, TlvError>

Read the next TLV type code.

pub fn read_length(&mut self) -> Result<usize, TlvError>

Read the next TLV length field.

pub fn read_bytes(&mut self, len: usize) -> Result<Bytes, TlvError>

Read exactly len bytes as a zero-copy Bytes slice.

pub fn read_tlv(&mut self) -> Result<(u64, Bytes), TlvError>

Read a complete TLV element: returns (type, value_bytes).

pub fn peek_type(&self) -> Result<u64, TlvError>

Peek at the next TLV type without advancing the position.

pub fn skip_unknown(&mut self, typ: u64) -> Result<(), TlvError>

Skip an unknown TLV element, respecting the critical-bit rule.

Types 0–31 are always critical (grandfathered, NDN Packet Format v0.3 §1.3). For types >= 32, odd numbers are critical and even are non-critical.

pub fn scoped(&mut self, len: usize) -> Result<TlvReader, TlvError>

Return a sub-reader scoped to len bytes from the current position.

pub fn as_bytes(&self) -> Bytes

Return the full remaining buffer as a Bytes slice without advancing.