Struct RuntimeHeaders 

pub struct RuntimeHeaders {
    pub message_id: MessageId,
    pub timestamp: Instant,
}

Read-only headers auto-generated by the runtime. Interceptors can read these but cannot modify or remove them.

Clone semantics: Cloning preserves the original message_id and timestamp. This is intentional — cloned headers refer to the same logical message (e.g., when forwarding or replicating an envelope). Use RuntimeHeaders::new() to create headers for a genuinely new message.

Fields

message_id: MessageId

Unique message ID — auto-assigned by the runtime for every message.

timestamp: Instant

When the runtime received/created this message.

Implementations

impl RuntimeHeaders

pub fn new() -> Self

Create new RuntimeHeaders with a fresh MessageId and current timestamp.

Trait Implementations

impl Clone for RuntimeHeaders

fn clone(&self) -> RuntimeHeaders

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RuntimeHeaders

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

Formats the value using the given formatter.

impl Default for RuntimeHeaders

fn default() -> Self

Returns the “default value” for a type.