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embassy_sync/pubsub: fix PubSubBehavior visibility

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https://github.com/embassy-rs/embassy/pull/2969 appears to have broken
direct `publish_immediate()` on `pubsub::Channel`, as it functionally
made `PubSubBehavior` private and didn't delegate this method to the new
(private) `SealedPubSubBehavior`.

This change moves `publish_immediate`, `capacity`, and `is_full` from
`SealedPubSubBehavior` to `PubSubBehavior` in order to restore them to
`pub` visibility.
This commit is contained in:
Nathan Perry 2024-09-19 08:17:33 -04:00
parent cdb44f1272
commit 893b8d79e8
1 changed files with 28 additions and 28 deletions
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56
embassy-sync/src/pubsub/mod.rs
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@ -194,6 +194,25 @@ impl<M: RawMutex, T: Clone, const CAP: usize, const SUBS: usize, const PUBS: usi
}
}
impl<M: RawMutex, T: Clone, const CAP: usize, const SUBS: usize, const PUBS: usize> crate::pubsub::PubSubBehavior<T>
for PubSubChannel<M, T, CAP, SUBS, PUBS>
{
fn publish_immediate(&self, message: T) {
self.inner.lock(|s| {
let mut s = s.borrow_mut();
s.publish_immediate(message)
})
}
fn capacity(&self) -> usize {
self.capacity()
}
fn is_full(&self) -> bool {
self.is_full()
}
}
impl<M: RawMutex, T: Clone, const CAP: usize, const SUBS: usize, const PUBS: usize> SealedPubSubBehavior<T>
for PubSubChannel<M, T, CAP, SUBS, PUBS>
{
@ -246,13 +265,6 @@ impl<M: RawMutex, T: Clone, const CAP: usize, const SUBS: usize, const PUBS: usi
})
}
fn publish_immediate(&self, message: T) {
self.inner.lock(|s| {
let mut s = s.borrow_mut();
s.publish_immediate(message)
})
}
fn unregister_subscriber(&self, subscriber_next_message_id: u64) {
self.inner.lock(|s| {
let mut s = s.borrow_mut();
@ -267,10 +279,6 @@ impl<M: RawMutex, T: Clone, const CAP: usize, const SUBS: usize, const PUBS: usi
})
}
fn capacity(&self) -> usize {
self.capacity()
}
fn free_capacity(&self) -> usize {
self.free_capacity()
}
@ -286,10 +294,6 @@ impl<M: RawMutex, T: Clone, const CAP: usize, const SUBS: usize, const PUBS: usi
fn is_empty(&self) -> bool {
self.is_empty()
}
fn is_full(&self) -> bool {
self.is_full()
}
}
/// Internal state for the PubSub channel
@ -445,8 +449,6 @@ pub enum Error {
MaximumPublishersReached,
}
/// 'Middle level' behaviour of the pubsub channel.
/// This trait is used so that Sub and Pub can be generic over the channel.
trait SealedPubSubBehavior<T> {
/// Try to get a message from the queue with the given message id.
///
@ -462,12 +464,6 @@ trait SealedPubSubBehavior<T> {
/// If the queue is full and a context is given, then its waker is registered in the publisher wakers.
fn publish_with_context(&self, message: T, cx: Option<&mut Context<'_>>) -> Result<(), T>;
/// Publish a message immediately
fn publish_immediate(&self, message: T);
/// Returns the maximum number of elements the channel can hold.
fn capacity(&self) -> usize;
/// Returns the free capacity of the channel.
///
/// This is equivalent to `capacity() - len()`
@ -482,9 +478,6 @@ trait SealedPubSubBehavior<T> {
/// Returns whether the channel is empty.
fn is_empty(&self) -> bool;
/// Returns whether the channel is full.
fn is_full(&self) -> bool;
/// Let the channel know that a subscriber has dropped
fn unregister_subscriber(&self, subscriber_next_message_id: u64);
@ -495,9 +488,16 @@ trait SealedPubSubBehavior<T> {
/// 'Middle level' behaviour of the pubsub channel.
/// This trait is used so that Sub and Pub can be generic over the channel.
#[allow(private_bounds)]
pub trait PubSubBehavior<T>: SealedPubSubBehavior<T> {}
pub trait PubSubBehavior<T>: SealedPubSubBehavior<T> {
/// Publish a message immediately
fn publish_immediate(&self, message: T);
impl<T, C: SealedPubSubBehavior<T>> PubSubBehavior<T> for C {}
/// Returns the maximum number of elements the channel can hold.
fn capacity(&self) -> usize;
/// Returns whether the channel is full.
fn is_full(&self) -> bool;
}
/// The result of the subscriber wait procedure
#[derive(Debug, Clone, PartialEq, Eq)]