Struct trillium_channels::Channel

source ·
pub struct Channel<CH>(/* private fields */);
Expand description

Trillium handler containing a ChannelHandler

This is constructed from a ChannelHandler using Channel::new and dereferences to that type.

Implementations§

source§

impl<CH: ChannelHandler> Channel<CH>

source

pub fn new(channel_handler: CH) -> Self

Constructs a new trillium Channel handler from the provided ChannelHandler implementation

source

pub fn broadcaster(&self) -> ChannelBroadcaster

Retrieve a ChannelBroadcaster that can be moved elsewhere or cloned in order to trigger channel events and listen for global events.

source

pub fn broadcast(&self, event: impl Into<ChannelEvent>)

Send a ChannelEvent to all connected clients that subscribe to the topic

Trait Implementations§

source§

impl<CH: Debug> Debug for Channel<CH>

source§

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

Formats the value using the given formatter. Read more
source§

impl<CH> Deref for Channel<CH>

§

type Target = CH

The resulting type after dereferencing.
source§

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

Dereferences the value.
source§

impl<CH> DerefMut for Channel<CH>

source§

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.
source§

impl<CH> Handler for Channel<CH>
where CH: ChannelHandler,

source§

fn run<'life0, 'async_trait>( &'life0 self, conn: Conn, ) -> Pin<Box<dyn Future<Output = Conn> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Executes this handler, performing any modifications to the Conn that are desired.
source§

fn init<'life0, 'life1, 'async_trait>( &'life0 mut self, info: &'life1 mut Info, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Performs one-time async set up on a mutable borrow of the Handler before the server starts accepting requests. This allows a Handler to be defined in synchronous code but perform async setup such as establishing a database connection or fetching some state from an external source. This is optional, and chances are high that you do not need this. Read more
source§

fn before_send<'life0, 'async_trait>( &'life0 self, conn: Conn, ) -> Pin<Box<dyn Future<Output = Conn> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Performs any final modifications to this conn after all handlers have been run. Although this is a slight deviation from the simple conn->conn->conn chain represented by most Handlers, it provides an easy way for libraries to effectively inject a second handler into a response chain. This is useful for loggers that need to record information both before and after other handlers have run, as well as database transaction handlers and similar library code. Read more
source§

fn has_upgrade(&self, upgrade: &Upgrade) -> bool

predicate function answering the question of whether this Handler would like to take ownership of the negotiated Upgrade. If this returns true, you must implement Handler::upgrade. The first handler that responds true to this will receive ownership of the trillium::Upgrade in a subsequent call to Handler::upgrade
source§

fn upgrade<'life0, 'async_trait>( &'life0 self, upgrade: Upgrade, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

This will only be called if the handler reponds true to Handler::has_upgrade and will only be called once for this upgrade. There is no return value, and this function takes exclusive ownership of the underlying transport once this is called. You can downcast the transport to whatever the source transport type is and perform any non-http protocol communication that has been negotiated. You probably don’t want this unless you’re implementing something like websockets. Please note that for many transports such as TcpStreams, dropping the transport (and therefore the Upgrade) will hang up / disconnect.
source§

fn name(&self) -> Cow<'static, str>

Customize the name of your handler. This is used in Debug implementations. The default is the type name of this handler.

Auto Trait Implementations§

§

impl<CH> Freeze for Channel<CH>
where CH: Freeze,

§

impl<CH> RefUnwindSafe for Channel<CH>
where CH: RefUnwindSafe,

§

impl<CH> Send for Channel<CH>
where CH: Send,

§

impl<CH> Sync for Channel<CH>
where CH: Sync,

§

impl<CH> Unpin for Channel<CH>
where CH: Unpin,

§

impl<CH> UnwindSafe for Channel<CH>
where CH: UnwindSafe,

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> Same for T

§

type Output = T

Should always be Self
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

§

fn vzip(self) -> V