import * as internal from "./internal/pubsub.js";
/**
* Creates a bounded `PubSub` with the back pressure strategy. The `PubSub` will retain
* messages until they have been taken by all subscribers, applying back
* pressure to publishers if the `PubSub` is at capacity.
*
* For best performance use capacities that are powers of two.
*
* @since 2.0.0
* @category constructors
*/
export const bounded = internal.bounded;
/**
* Creates a bounded `PubSub` with the dropping strategy. The `PubSub` will drop new
* messages if the `PubSub` is at capacity.
*
* For best performance use capacities that are powers of two.
*
* @since 2.0.0
* @category constructors
*/
export const dropping = internal.dropping;
/**
* Creates a bounded `PubSub` with the sliding strategy. The `PubSub` will add new
* messages and drop old messages if the `PubSub` is at capacity.
*
* For best performance use capacities that are powers of two.
*
* @since 2.0.0
* @category constructors
*/
export const sliding = internal.sliding;
/**
* Creates an unbounded `PubSub`.
*
* @since 2.0.0
* @category constructors
*/
export const unbounded = internal.unbounded;
/**
* Returns the number of elements the queue can hold.
*
* @since 2.0.0
* @category getters
*/
export const capacity = internal.capacity;
/**
* Retrieves the size of the queue, which is equal to the number of elements
* in the queue. This may be negative if fibers are suspended waiting for
* elements to be added to the queue.
*
* @since 2.0.0
* @category getters
*/
export const size = internal.size;
/**
* Returns `true` if the `Queue` contains at least one element, `false`
* otherwise.
*
* @since 2.0.0
* @category getters
*/
export const isFull = internal.isFull;
/**
* Returns `true` if the `Queue` contains zero elements, `false` otherwise.
*
* @since 2.0.0
* @category getters
*/
export const isEmpty = internal.isEmpty;
/**
* Interrupts any fibers that are suspended on `offer` or `take`. Future calls
* to `offer*` and `take*` will be interrupted immediately.
*
* @since 2.0.0
* @category utils
*/
export const shutdown = internal.shutdown;
/**
* Returns `true` if `shutdown` has been called, otherwise returns `false`.
*
* @since 2.0.0
* @category getters
*/
export const isShutdown = internal.isShutdown;
/**
* Waits until the queue is shutdown. The `Effect` returned by this method will
* not resume until the queue has been shutdown. If the queue is already
* shutdown, the `Effect` will resume right away.
*
* @since 2.0.0
* @category utils
*/
export const awaitShutdown = internal.awaitShutdown;
/**
* Publishes a message to the `PubSub`, returning whether the message was published
* to the `PubSub`.
*
* @since 2.0.0
* @category utils
*/
export const publish = internal.publish;
/**
* Publishes all of the specified messages to the `PubSub`, returning whether they
* were published to the `PubSub`.
*
* @since 2.0.0
* @category utils
*/
export const publishAll = internal.publishAll;
/**
* Subscribes to receive messages from the `PubSub`. The resulting subscription can
* be evaluated multiple times within the scope to take a message from the `PubSub`
* each time.
*
* @since 2.0.0
* @category utils
*/
export const subscribe = internal.subscribe;
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