add

Author: mxsm

rocketmq-store/src/base/message_result.rs

@@ -51,13 +51,26 @@ pub struct PutMessageResult {
 
 impl Default for AppendMessageResult {
     fn default() -> Self {
-        unimplemented!()
+        Self {
+            status: Default::default(),
+            wrote_offset: 0,
+            wrote_bytes: 0,
+            msg_id: "".to_string(),
+            store_timestamp: 0,
+            logics_offset: 0,
+            page_cache_rt: 0,
+            msg_num: 0,
+        }
     }
 }
 
 impl Default for PutMessageResult {
     fn default() -> Self {
-        unimplemented!()
+        Self{
+            put_message_status: Default::default(),
+            append_message_result: None,
+            remote_put: false,
+        }
     }
 }