IEventStream

class carb.events.IEventStream

Methods

`__init__`(args, *kwargs)
`create_subscription_to_pop`(self, fn[, ...])	Subscribes to event dispatching on the stream.
`create_subscription_to_pop_by_type`(self, ...)	Subscribes to event dispatching on the stream.
`create_subscription_to_push`(self, fn[, ...])	Subscribes to pushing events into stream.
`create_subscription_to_push_by_type`(self, ...)	Subscribes to pushing events into stream.
`dispatch`(self[, event_type, sender, payload])	Dispatch :class:`.Event` immediately without putting it into stream.
`get_subscription_to_pop_order`(self, name)	Get subscription to pop order by name of subscription.
`get_subscription_to_push_order`(self, name)	Get subscription to push order by name of subscription.
`next_event`([order, name])	Async wait for next event.
`next_event_by_type`(event_type[, order, name])	Async wait for next event of particular type.
`pop`(self)	Pop event.
`pump`(self)	Pump event stream.
`push`(self[, event_type, sender, payload])	Push :class:`.Event` into stream.
`set_subscription_to_pop_order`(self, name, order)	Set subscription to pop order by name of subscription.
`set_subscription_to_push_order`(self, name, order)	Set subscription to push order by name of subscription.
`try_pop`(self)	Try pop event.

Attributes

event_count

__init__(*args, **kwargs)

create_subscription_to_pop(self: carb.events._events.IEventStream, fn: Callable[[carb.events._events.IEvent], None], order: int = 0, name: str = '') → carb.events._events.ISubscription

Subscribes to event dispatching on the stream.

See :class:`.Subscription` for more information on subscribing mechanism.

Parameters: fn – The callback to be called on event dispatch.
Returns: The subscription holder.

create_subscription_to_pop_by_type(self: carb.events._events.IEventStream, event_type: int, fn: Callable[[carb.events._events.IEvent], None], order: int = 0, name: str = '') → carb.events._events.ISubscription

Subscribes to event dispatching on the stream.

See :class:`.Subscription` for more information on subscribing mechanism.

Parameters

event_type – Event type to listen to.
fn – The callback to be called on event dispatch.

Returns

The subscription holder.

create_subscription_to_push(self: carb.events._events.IEventStream, fn: Callable[[carb.events._events.IEvent], None], order: int = 0, name: str = '') → carb.events._events.ISubscription

Subscribes to pushing events into stream.

See :class:`.Subscription` for more information on subscribing mechanism.

Parameters: fn – The callback to be called on event push.
Returns: The subscription holder.

create_subscription_to_push_by_type(self: carb.events._events.IEventStream, event_type: int, fn: Callable[[carb.events._events.IEvent], None], order: int = 0, name: str = '') → carb.events._events.ISubscription

Subscribes to pushing events into stream.

See :class:`.Subscription` for more information on subscribing mechanism.

Parameters

event_type – Event type to listen to.
fn – The callback to be called on event push.

Returns

The subscription holder.

dispatch(self: carb.events._events.IEventStream, event_type: int = 0, sender: int = 0, payload: dict = {}) → None

Dispatch :class:`.Event` immediately without putting it into stream.

Parameters

event_type (int) – :class:`.Event` type.
sender (int) – Sender id. Unique can be acquired using :func:`.acquire_unique_sender_id`.
dict (Dict) – :class:`.Event` payload.

get_subscription_to_pop_order(self: carb.events._events.IEventStream, name: str) → object: Get subscription to pop order by name of subscription. Return None if subscription was not found.

get_subscription_to_push_order(self: carb.events._events.IEventStream, name: str) → object: Get subscription to push order by name of subscription. Return None if subscription was not found.

async next_event(order: int = 0, name: str = ''): Async wait for next event.

async next_event_by_type(event_type: int, order: int = 0, name: str = ''): Async wait for next event of particular type.

pop(self: carb.events._events.IEventStream) → carb.events._events.IEvent

Pop event.

This function blocks execution until there is an event to pop.

Returns: (:class:`.Event`) object. You own this object, it can be stored.

pump(self: carb.events._events.IEventStream) → None

Pump event stream.

Dispatches all events in a stream.

push(self: carb.events._events.IEventStream, event_type: int = 0, sender: int = 0, payload: dict = {}) → None

Push :class:`.Event` into stream.

Parameters

event_type (int) – :class:`.Event` type.
sender (int) – Sender id. Unique can be acquired using :func:`.acquire_unique_sender_id`.
dict (Dict) – :class:`.Event` payload.

set_subscription_to_pop_order(self: carb.events._events.IEventStream, name: str, order: int) → bool: Set subscription to pop order by name of subscription.

set_subscription_to_push_order(self: carb.events._events.IEventStream, name: str, order: int) → bool: Set subscription to push order by name of subscription.

try_pop(self: carb.events._events.IEventStream) → carb.events._events.IEvent

Try pop event.

Returns: Pops (:class:`.Event`) if stream is not empty or return `None`.