moq-rs/moq-transport/src/message/subscribe_ok.rs

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use crate::coding::{DecodeError, EncodeError, VarInt};
use webtransport_generic::{RecvStream, SendStream};
#[derive(Debug)]
pub struct SubscribeOk {
// NOTE: No full track name because of this proposal: https://github.com/moq-wg/moq-transport/issues/209
// The ID for this track.
pub track_id: VarInt,
// The subscription will end after this duration has elapsed.
// A value of zero is invalid.
pub expires: Option<VarInt>,
}
impl SubscribeOk {
pub async fn decode<R: RecvStream>(r: &mut R) -> Result<Self, DecodeError> {
let track_id = VarInt::decode(r).await?;
let expires = VarInt::decode(r).await?;
let expires = if expires.into_inner() == 0 { None } else { Some(expires) };
Ok(Self { track_id, expires })
}
}
impl SubscribeOk {
pub async fn encode<W: SendStream>(&self, w: &mut W) -> Result<(), EncodeError> {
self.track_id.encode(w).await?;
self.expires.unwrap_or_default().encode(w).await?;
Ok(())
}
}