Struct PacketBuilder 

pub struct PacketBuilder<'a> { /* private fields */ }

Entry point for typestate packet construction.

The builder consumes itself as it transitions through required stages so invalid packet layouts are rejected at compile time where possible.

Implementations

impl<'a> PacketBuilder<'a>

pub fn new(buf: &'a mut [u8]) -> Self

Start building a packet into buf.

pub fn broadcast(self) -> BroadcastBuilder<'a, NeedsSource>

Begin a broadcast packet.

pub fn mac_ack(self, ack_trailer: [u8; 8]) -> MacAckBuilder<'a, Configuring>

Build a MAC ACK packet.

The ack carries no destination hint — it is a return-routed token correlated by its trailer. ack_trailer is the 8-byte ack_mic || ack_tag value (see the crypto engine’s compute_ack_trailer).

pub fn unicast(self, dst: NodeHint) -> UnicastBuilder<'a, NeedsSource>

Begin a unicast packet to dst.

pub fn multicast(self, channel: ChannelId) -> MulticastBuilder<'a, NeedsSource>

Begin a multicast packet on channel.

pub fn blind_unicast( self, channel: ChannelId, dst: NodeHint, ) -> BlindUnicastBuilder<'a, NeedsSource>

Begin a blind-unicast packet addressed through channel to dst.