events

package
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Published: Dec 10, 2018 License: LGPL-3.0, Apache-2.0, Apache-2.0 Imports: 3 Imported by: 0

README

go-events

PubSub in Go with event caching.

Documentation

Index

Constants

This section is empty.

Variables

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Functions

This section is empty.

Types

type EventCache

type EventCache struct {
	// contains filtered or unexported fields
}

An EventCache buffers events for a Fireable All events are cached. Filtering happens on Flush

func NewEventCache

func NewEventCache(evsw Fireable) *EventCache

Create a new EventCache with an EventSwitch as backend

func (*EventCache) FireEvent

func (evc *EventCache) FireEvent(event string, data EventData)

Cache an event to be fired upon finality.

func (*EventCache) Flush

func (evc *EventCache) Flush()

Fire events by running evsw.FireEvent on all cached events. Blocks. Clears cached events

type EventCallback

type EventCallback func(data EventData)

type EventData

type EventData interface {
}

Generic event data can be typed and registered with tendermint/go-wire via concrete implementation of this interface

type EventSwitch

type EventSwitch interface {
	Service
	Fireable

	AddListenerForEvent(listenerID, event string, cb EventCallback)
	RemoveListenerForEvent(event string, listenerID string)
	RemoveListener(listenerID string)
}

func NewEventSwitch

func NewEventSwitch(logger *zap.Logger) EventSwitch

type Eventable

type Eventable interface {
	SetEventSwitch(evsw EventSwitch)
}

reactors and other modules should export this interface to become eventable

type Fireable

type Fireable interface {
	FireEvent(event string, data EventData)
}

an event switch or cache implements fireable

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