events

import "github.com/tendermint/go-events"

• Overview
• Index

Overview

Pub-Sub in go with event caching

Index

• type EventCache
  • func NewEventCache(evsw Fireable) *EventCache
  • func (evc *EventCache) FireEvent(event string, data EventData)
  • func (evc *EventCache) Flush()
• type EventCallback
• type EventData
• type EventSwitch
  • func NewEventSwitch() EventSwitch
• type Eventable
• type Fireable

Package files

event_cache.go events.go log.go

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() 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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