Module binary_codec 

Binary TLV (Type-Length-Value) codec for envelope metadata

Encodes envelope metadata as TLV entries for the LNMP container metadata extension block.

TLV Format

Type (1 byte) | Length (2 bytes, BE) | Value (Length bytes)

Type Codes

• 0x10: Timestamp (u64 big-endian)
• 0x11: Source (UTF-8 string)
• 0x12: TraceID (UTF-8 string)
• 0x13: Sequence (u64 big-endian)
• 0x14: Labels (reserved)

Canonical Ordering

TLV entries MUST appear in ascending type order for determinism.

Modules

tlv_type

TLV type codes

Structs

TlvDecoder

Binary TLV decoder for envelope metadata

TlvEncoder

Binary TLV encoder for envelope metadata