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>
impl<CH: ChannelHandler> Channel<CH>
sourcepub fn new(channel_handler: CH) -> Self
pub fn new(channel_handler: CH) -> Self
Constructs a new trillium Channel handler from the provided
ChannelHandler
implementation
sourcepub fn broadcaster(&self) -> ChannelBroadcaster
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.
sourcepub fn broadcast(&self, event: impl Into<ChannelEvent>)
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> Handler for Channel<CH>where
CH: ChannelHandler,
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,
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,
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,
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
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,
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.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> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more