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embassy_sync::pubsub::publisher

Struct Pub

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pub struct Pub<'a, PSB: PubSubBehavior<T> + ?Sized, T: Clone> { /* private fields */ }
Expand description

A publisher to a channel

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impl<'a, PSB: PubSubBehavior<T> + ?Sized, T: Clone> Pub<'a, PSB, T>

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pub fn publish_immediate(&self, message: T)

Publish a message right now even when the queue is full. This may cause a subscriber to miss an older message.

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pub fn publish<'s>(&'s self, message: T) -> PublisherWaitFuture<'s, 'a, PSB, T>

Publish a message. But if the message queue is full, wait for all subscribers to have read the last message

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pub fn try_publish(&self, message: T) -> Result<(), T>

Publish a message if there is space in the message queue

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pub fn capacity(&self) -> usize

Returns the maximum number of elements the channel can hold.

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pub fn free_capacity(&self) -> usize

Returns the free capacity of the channel.

This is equivalent to capacity() - len()

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pub fn clear(&self)

Clears all elements in the channel.

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pub fn len(&self) -> usize

Returns the number of elements currently in the channel.

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pub fn is_empty(&self) -> bool

Returns whether the channel is empty.

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pub fn is_full(&self) -> bool

Returns whether the channel is full.

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pub const fn sink(&self) -> PubSink<'a, '_, PSB, T>

Create a [futures::Sink] adapter for this publisher.

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impl<'a, PSB: PubSubBehavior<T> + ?Sized, T: Clone> Drop for Pub<'a, PSB, T>

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<'a, PSB, T> Freeze for Pub<'a, PSB, T>
where PSB: ?Sized,

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impl<'a, PSB, T> RefUnwindSafe for Pub<'a, PSB, T>
where PSB: RefUnwindSafe + ?Sized, T: RefUnwindSafe,

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impl<'a, PSB, T> Send for Pub<'a, PSB, T>
where PSB: Sync + ?Sized, T: Send,

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impl<'a, PSB, T> Sync for Pub<'a, PSB, T>
where PSB: Sync + ?Sized, T: Sync,

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impl<'a, PSB, T> Unpin for Pub<'a, PSB, T>
where T: Unpin, PSB: ?Sized,

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impl<'a, PSB, T> UnwindSafe for Pub<'a, PSB, T>
where PSB: RefUnwindSafe + ?Sized, T: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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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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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.