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use std::fmt;
use futures::unsync::{mpsc, oneshot};
use futures::Future;
use crate::dispatcher::FramedMessage;
pub struct Sink<T>(mpsc::UnboundedSender<FramedMessage<T>>);
impl<T> Clone for Sink<T> {
fn clone(&self) -> Self {
Sink(self.0.clone())
}
}
impl<T> Sink<T> {
pub(crate) fn new(tx: mpsc::UnboundedSender<FramedMessage<T>>) -> Self {
Sink(tx)
}
pub fn close(&self) {
let _ = self.0.unbounded_send(FramedMessage::Close);
}
pub fn wait_close(&self) -> impl Future<Item = (), Error = ()> {
let (tx, rx) = oneshot::channel();
let _ = self.0.unbounded_send(FramedMessage::WaitClose(tx));
rx.map_err(|_| ())
}
pub fn send(&self, item: T) {
let _ = self.0.unbounded_send(FramedMessage::Message(item));
}
}
impl<T> fmt::Debug for Sink<T> {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
fmt.debug_struct("Sink").finish()
}
}