pubsub

package
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 Go to latest Published: Jan 16, 2020 License: Apache-2.0 Imports: 1 Imported by: 0

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Types

type PubSub 

type PubSub struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

PubSub holds publishers and subscribers

func New 

func New() *PubSub

New inits a PubSub system

func (*PubSub) HasSubscribers 

func (ps *PubSub) HasSubscribers() bool

HasSubscribers returns true if pubsub system has subscribers

func (*PubSub) Publish 

func (ps *PubSub) Publish(item interface{})

Publish message to the subscribers. Note that publish is always nob-blocking send so that we don't block on slow receivers. Hence receivers should use buffered channel so as not to miss the published events.

func (*PubSub) Subscribe 

func (ps *PubSub) Subscribe(subCh chan interface{}, doneCh chan struct{}, filter func(entry interface{}) bool)

Subscribe - Adds a subscriber to pubsub system

type Sub 

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

Sub - subscriber entity.

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