Struct MsgHeader 

#[repr(C)]
pub struct MsgHeader {
    pub version: u16,
    pub header_len: u16,
    pub encoding: u16,
    pub flags: u16,
    pub correlation_id: u64,
    pub deadline_ns: u64,
}

Message header at the start of each payload.

Layout: payload = [MsgHeader][metadata...][body...]

Fields

version: u16

Message format version.

header_len: u16

Total header size (including this struct + metadata).

encoding: u16

Body encoding (Postcard, Json, Raw).

flags: u16

Header flags (compression, etc.).

correlation_id: u64

Reply-to: msg_id of request.

deadline_ns: u64

Absolute deadline (nanos since epoch, 0 = none).

Implementations

impl MsgHeader

pub const fn new() -> Self

Create a new header with default values.

pub fn encoding(&self) -> Option<Encoding>

Get the encoding as an enum.

pub fn set_encoding(&mut self, encoding: Encoding)

Set the encoding.

Trait Implementations

impl Clone for MsgHeader

fn clone(&self) -> MsgHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MsgHeader

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

Formats the value using the given formatter.

impl Default for MsgHeader

fn default() -> Self

Returns the “default value” for a type.

impl Copy for MsgHeader