able to read chan and write chan

weed/pb/messaging.proto

@@ -15,6 +15,9 @@ service SeaweedMessaging {
     rpc Publish (stream PublishRequest) returns (stream PublishResponse) {
     }
 
+    rpc DeleteTopic (DeleteTopicRequest) returns (DeleteTopicResponse) {
+    }
+
     rpc ConfigureTopic (ConfigureTopicRequest) returns (ConfigureTopicResponse) {
     }
 
@@ -47,6 +50,7 @@ message SubscriberMessage {
         int64 message_id = 1;
     }
     AckMessage ack = 2;
+    bool is_close = 3;
 }
 
 message Message {
@@ -54,11 +58,11 @@ message Message {
     bytes key = 2; // Message key
     bytes value = 3; // Message payload
     map<string, bytes> headers = 4; // Message headers
+    bool is_close = 5;
 }
 
 message BrokerMessage {
     Message data = 1;
-    bool is_close = 2;
 }
 
 message PublishRequest {
@@ -80,6 +84,14 @@ message PublishResponse {
         string new_broker = 1;
     }
     RedirectMessage redirect = 2;
+    bool is_closed = 3;
+}
+
+message DeleteTopicRequest {
+    string namespace = 1;
+    string topic = 2;
+}
+message DeleteTopicResponse {
 }
 
 message ConfigureTopicRequest {