chore: 并入 iotlcm-app 历史到 app/（原提交 f40bda9）

app/server/utility/gfredis/subpub.go

@@ -0,0 +1,18 @@
+package gfredis
+
+import (
+	"context"
+
+	"github.com/gogf/gf/v2/util/gconv"
+	"github.com/redis/go-redis/v9"
+)
+
+func (r *Redis) Subscribe(ctx context.Context, channels ...string) (*redis.PubSub, error) {
+	cmd := r.rdb.Subscribe(ctx, channels...)
+	return cmd, nil
+}
+
+func (r *Redis) Publish(ctx context.Context, channel string, message interface{}) (int64, error) {
+	cmd := r.rdb.Publish(ctx, channel, gconv.String(message))
+	return cmd.Val(), cmd.Err()
+}