pub struct Broadcaster(Arc<Mutex<HashMap<i32, ConnectedMap>>>);
Expand description

SSE broadcaster.

Inner HashMap:

  • Map of map_id to a list of connected clients.
  • The map_id is the id of the map that the client connected to.
  • The connected map contains the map_id and a list of clients connected to that map.

Tuple Fields§

§0: Arc<Mutex<HashMap<i32, ConnectedMap>>>

Implementations§

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impl Broadcaster

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pub fn new() -> Self

Constructs new broadcaster and spawns ping loop.

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fn spawn_ping(self)

Pings clients every 10 minutes to see if they are alive and remove them from the broadcast list if not.

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async fn remove_stale_clients(&self)

Removes all non-responsive clients from broadcast list. TODO: this is a naive implementation, we should probably use a better data structure for this. Things to consider: - how can we do this without having to iterate over all clients?

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pub async fn new_client( &self, map_id: i32 ) -> Result<Sse<ChannelStream>, Box<dyn Error>>

Registers client with broadcaster, returning an SSE response body.

Errors
  • If sender.send() fails for the new client.
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pub async fn broadcast(&self, map_id: i32, action: Action)

Broadcasts msg to all clients on the same map.

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pub async fn broadcast_all_maps(&self, action: Action)

Broadcasts msg to all clients on all maps.

Trait Implementations§

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impl Clone for Broadcaster

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fn clone(&self) -> Broadcaster

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Broadcaster

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

Formats the value using the given formatter. Read more
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impl Default for Broadcaster

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fn default() -> Broadcaster

Returns the “default value” for a type. Read more

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Immutably borrows from an owned value. Read more
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fn into(self) -> U

Calls U::from(self).

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

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fn into_sql<T>(self) -> Self::Expressionwhere Self: AsExpression<T> + Sized, T: SqlType + TypedExpressionType,

Convert self to an expression for Diesel’s query builder. Read more
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Convert &self to an expression for Diesel’s query builder. Read more
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fn paginate(self, page: Option<i32>) -> PaginatedQuery<T>

Return a paginated version of a query for a specific page number.
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fn execute<'query, 'conn>( self, conn: &'conn mut Conn ) -> <Conn as AsyncConnection>::ExecuteFuture<'conn, 'query>where Conn: AsyncConnection + Send, Self: ExecuteDsl<Conn, <Conn as AsyncConnection>::Backend> + 'query,

Executes the given command, returning the number of rows affected. Read more
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Executes the given query, returning a Vec with the returned rows. Read more
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fn load_stream<'conn, 'query, U>( self, conn: &'conn mut Conn ) -> Self::LoadFuture<'conn>where Conn: AsyncConnection, U: 'conn, Self: LoadQuery<'query, Conn, U> + 'query,

Executes the given query, returning a Stream with the returned rows. Read more
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fn get_result<'query, 'conn, U>( self, conn: &'conn mut Conn ) -> AndThen<Self::LoadFuture<'conn>, Map<StreamFuture<Pin<Box<Self::Stream<'conn>, Global>>>, fn(_: (Option<Result<U, Error>>, Pin<Box<Self::Stream<'conn>, Global>>)) -> Result<U, Error>>, fn(_: Self::Stream<'conn>) -> Map<StreamFuture<Pin<Box<Self::Stream<'conn>, Global>>>, fn(_: (Option<Result<U, Error>>, Pin<Box<Self::Stream<'conn>, Global>>)) -> Result<U, Error>>>where U: Send + 'conn, Conn: AsyncConnection, Self: LoadQuery<'query, Conn, U> + 'query,

Runs the command, and returns the affected row. Read more
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fn get_results<'query, U, 'conn>( self, conn: &'conn mut Conn ) -> AndThen<Self::LoadFuture<'conn>, TryCollect<Self::Stream<'conn>, Vec<U, Global>>, fn(_: Self::Stream<'conn>) -> TryCollect<Self::Stream<'conn>, Vec<U, Global>>>where U: Send, Conn: AsyncConnection, Self: LoadQuery<'query, Conn, U> + 'query,

Runs the command, returning an Vec with the affected rows. Read more
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fn first<'query, 'conn, U>( self, conn: &'conn mut Conn ) -> AndThen<<Self::Output as LoadQuery<'query, Conn, U>>::LoadFuture<'conn>, Map<StreamFuture<Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>, Global>>>, fn(_: (Option<Result<U, Error>>, Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>, Global>>)) -> Result<U, Error>>, fn(_: <Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>) -> Map<StreamFuture<Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>, Global>>>, fn(_: (Option<Result<U, Error>>, Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>, Global>>)) -> Result<U, Error>>>where U: Send + 'conn, Conn: AsyncConnection, Self: LimitDsl, Self::Output: LoadQuery<'query, Conn, U> + Send + 'query,

Attempts to load a single record. Read more
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