| use zerocopy_derive::*; |
| |
| // The only valid value of this type are the bytes `0xC0C0`. |
| #[derive(TryFromBytes, KnownLayout, Immutable)] |
| #[repr(u16)] |
| pub enum C0C0 { |
| _XC0C0 = 0xC0C0, |
| } |
| |
| #[derive(FromBytes, KnownLayout, Immutable, SplitAt)] |
| #[repr(C, align(4))] |
| pub struct Packet<Magic> { |
| magic_number: Magic, |
| milk: u8, |
| mug_size: u8, |
| temperature: [u8; 5], |
| marshmallows: [[u8; 3]], |
| } |
| |
| /// A packet begining with the magic number `0xC0C0`. |
| pub type CocoPacket = Packet<C0C0>; |
| |
| /// A packet beginning with any two initialized bytes. |
| pub type LocoPacket = Packet<[u8; 2]>; |
