feat: cache add single-flight and timing-wheel.

pkg/common/redispubsub/redissubscriber.go

@@ -0,0 +1,27 @@
+package redispubsub
+
+import (
+	"context"
+	"github.com/redis/go-redis/v9"
+)
+
+var ctx = context.Background()
+
+type Subscriber struct {
+	client  redis.UniversalClient
+	channel string
+}
+
+func NewSubscriber(client redis.UniversalClient, channel string) *Subscriber {
+	return &Subscriber{client: client, channel: channel}
+}
+
+func (s *Subscriber) OnMessage(callback func(string)) error {
+	messageChannel := s.client.Subscribe(ctx, s.channel).Channel()
+	go func() {
+		for msg := range messageChannel {
+			callback(msg.Payload)
+		}
+	}()
+	return nil
+}