Struct BinaryMessageEnvelope 

#[repr(C, packed(1))]
pub struct BinaryMessageEnvelope {
    pub magic: u16,
    pub message_type: u8,
    pub flags: u8,
    pub payload_len: u32,
}

Binary Message Envelope - 8 bytes fixed header

Fields

magic: u16

Magic number: 0xDC01 for DCP v1

message_type: u8

Message type (Tool=1, Resource=2, Prompt=3, Response=4, Error=5, Stream=6)

flags: u8

Flags: bit 0=streaming, bit 1=compressed, bit 2=signed

payload_len: u32

Payload length in bytes

Implementations

impl BinaryMessageEnvelope

pub const SIZE: usize = 8

Size of the envelope in bytes

pub fn new(message_type: MessageType, flags: u8, payload_len: u32) -> Self

Create a new envelope

pub fn from_bytes(bytes: &[u8]) -> Result<&Self, DCPError>

Parse envelope from bytes - O(1) via pointer cast

pub fn from_bytes_mut(bytes: &mut [u8]) -> Result<&mut Self, DCPError>

Parse envelope from mutable bytes - O(1) via pointer cast

pub fn as_bytes(&self) -> &[u8]

Serialize envelope to bytes - zero allocation

pub fn get_message_type(&self) -> Option<MessageType>

Get the message type as enum

pub fn is_streaming(&self) -> bool

Check if streaming flag is set

pub fn is_compressed(&self) -> bool

Check if compressed flag is set

pub fn is_signed(&self) -> bool

Check if signed flag is set

Trait Implementations

impl Clone for BinaryMessageEnvelope

fn clone(&self) -> BinaryMessageEnvelope

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for BinaryMessageEnvelope

impl Debug for BinaryMessageEnvelope

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for BinaryMessageEnvelope

impl PartialEq for BinaryMessageEnvelope

fn eq(&self, other: &BinaryMessageEnvelope) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for BinaryMessageEnvelope