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package pubsub
import "github.com/spiral/roadrunner/v2/pkg/pubsub/message"
/*
This interface is in BETA. It might be changed.
*/
// PubSub interface designed to implement on any storage type to provide pub-sub abilities
// Publisher used to receive messages from the PHP app via RPC
// Subscriber should be implemented to subscribe to a topics and provide a connections list per topic
// Reader return next message from the channel
type PubSub interface {
Publisher
Subscriber
Reader
}
// Subscriber defines the ability to operate as message passing broker.
// BETA interface
type Subscriber interface {
// Subscribe broker to one or multiple topics.
Subscribe(connectionID string, topics ...string) error
// Unsubscribe from one or multiply topics
Unsubscribe(connectionID string, topics ...string) error
// Connections returns all connections associated with the particular topic
Connections(topic string, ret map[string]struct{})
}
// Publisher publish one or more messages
// BETA interface
type Publisher interface {
// Publish one or multiple Channel.
Publish(messages []byte) error
// PublishAsync publish message and return immediately
// If error occurred it will be printed into the logger
PublishAsync(messages []byte)
}
// Reader interface should return next message
type Reader interface {
Next() (*message.Message, error)
}
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