Struct SharedMessage 

pub struct SharedMessage<T> { /* private fields */ }

A shared message wrapper for zero-copy message sharing.

This type wraps Arc<Message<T>> to enable zero-copy sharing of messages in fan-out scenarios where one message needs to be sent to multiple consumers.

Example

use streamweave_message::{Message, MessageId, SharedMessage};

let msg = Message::new(42, MessageId::new_uuid());
let shared = SharedMessage::from(msg);
let cloned = shared.clone(); // Zero-cost clone of Arc

Implementations

impl<T> SharedMessage<T>

pub fn from(message: Message<T>) -> Self

Create a SharedMessage from an owned Message.

pub fn from_arc(arc: Arc<Message<T>>) -> Self

Create a SharedMessage from an Arc<Message<T>>.

pub fn into_arc(self) -> Arc<Message<T>>

Get the inner Arc.

pub fn try_unwrap(self) -> Result<Message<T>, Self>

Try to unwrap the Arc, returning the owned Message if this is the only reference.

Returns Ok(Message<T>) if this is the only reference, Err(SharedMessage<T>) otherwise.

pub fn id(&self) -> &MessageId

Get the message ID.

pub fn payload(&self) -> &T

Get the payload.

pub fn metadata(&self) -> &MessageMetadata

Get the metadata.

Methods from Deref<Target = Message<T>>

pub fn id(&self) -> &MessageId

Get the message ID.

pub fn payload(&self) -> &T

Get the payload.

pub fn metadata(&self) -> &MessageMetadata

Get the metadata.

Trait Implementations

impl<T> AsRef<Message<T>> for SharedMessage<T>

fn as_ref(&self) -> &Message<T>

Converts this type into a shared reference of the (usually inferred) input type.

impl<T: Clone> Clone for SharedMessage<T>

fn clone(&self) -> SharedMessage<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for SharedMessage<T>

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

Formats the value using the given formatter.

impl<T> Deref for SharedMessage<T>

type Target = Message<T>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T> From<Arc<Message<T>>> for SharedMessage<T>

fn from(arc: Arc<Message<T>>) -> Self

Converts to this type from the input type.

impl<T> From<Message<T>> for SharedMessage<T>

fn from(message: Message<T>) -> Self

Converts to this type from the input type.

impl<T> From<SharedMessage<T>> for Arc<Message<T>>

fn from(shared: SharedMessage<T>) -> Self

Converts to this type from the input type.

impl<T: Hash> Hash for SharedMessage<T>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: PartialEq> PartialEq for SharedMessage<T>

fn eq(&self, other: &Self) -> 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<T: Eq> Eq for SharedMessage<T>