Module message_codec 

Length-delimited message encoding/decoding for peer communication.

Provides PeerMessageCodec which encodes messages with a 4-byte big-endian length prefix and an optional CRC32 checksum for integrity verification.

Wire Format

+-------------------+-------------------+--------------------+
| Length (4 bytes)   | Payload (N bytes) | CRC32 (4 bytes)    |
| big-endian u32     |                   | (optional)         |
+-------------------+-------------------+--------------------+

The length prefix encodes the payload size only (not including itself or the checksum). When checksums are enabled, the CRC32 is computed over the payload bytes and appended after the payload.

Structs

CodecConfig

Configuration for PeerMessageCodec.

CodecStats

Cumulative codec statistics.

EncodedMessage

Metadata about an encoded message.

PeerMessageCodec

Length-delimited message codec with optional CRC32 integrity checking.

Enums

CodecError

Errors returned by PeerMessageCodec encode/decode operations.