Struct Message 

pub struct Message<P: Payload> { /* private fields */ }

A message with a generic payload P.

Implementations

impl<P: Payload> Message<P>

pub fn new(header: MessageHeader, payload: P) -> Self

Construct a new message from a header and payload, fixing size and class.

pub fn with_payload<Q: Payload>(self, payload: Q) -> Message<Q>

Swap payloads while recalculating header fields.

pub fn map_payload<Q: Payload>(self, f: impl FnOnce(P) -> Q) -> Message<Q>

Transform payloads while preserving header metadata correctly.

pub fn payload(&self) -> &P

Borrow the payload.

pub fn payload_mut(&mut self) -> &mut P

Mutable borrow of the payload.

pub fn header(&self) -> &MessageHeader

Borrow the header.

pub fn header_mut(&mut self) -> &mut MessageHeader

Mutable borrow of the header.

pub fn into_parts(self) -> (MessageHeader, P)

Decompose into (header, payload).

Trait Implementations

impl<P: Clone + Payload> Clone for Message<P>

fn clone(&self) -> Message<P>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<P: Debug + Payload> Debug for Message<P>

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

Formats the value using the given formatter.

impl<P: Payload + Clone + Default> Default for Message<P>

fn default() -> Self

Default Message<P> constructed from an empty header and P::default().

impl<'a, P: Payload + 'a> Payload for &'a Message<P>

fn buffer_descriptor(&self) -> BufferDescriptor

Return a descriptor containing the byte size of this payload.

impl<P: Payload> Payload for Message<P>

fn buffer_descriptor(&self) -> BufferDescriptor

Return a descriptor containing the byte size of this payload.

impl<P> Copy for Message<P>

where P: Payload + Copy,