添加rename的support

proto/lws.proto

@@ -39,6 +39,7 @@ service LwsVfs {
   rpc freleasedir(releasedir) returns (releasedir) {}
   rpc fcreate(create) returns (create) {}
   rpc funlink(unlink) returns (unlink) {}
+  rpc frename(rename) returns (rename) {}
 }
 
 // The request message containing the user's name.
@@ -202,3 +203,9 @@ message unlink{
   string path = 1;
   int32 ret = 15;
 }
+
+message rename {
+  string path = 1;
+  string new = 2;
+  int32 ret = 15;
+}

src/fs_impl/mod.rs

@@ -420,6 +420,11 @@ impl FSImpl {
             Ok(-1)
         }
     }
+    /** Rename a file */
+    pub fn frename(&self, path: &String, new: &String) -> Result<i32, Box<dyn Error>> {
+        fs::rename(path, new)?;
+        Ok(0)
+    }
 }
 
 #[test]

src/lib.rs

@@ -2,7 +2,7 @@
 use lws_vfs::lws_vfs_server::LwsVfs;
 use lws_vfs::{
     Access, Chown, FileInfo, Flush, Fstat, Getattr, Getxattr, HelloReply, HelloRequest, Mkdir,
-    Open, Read, Readdir, Release, Rmdir, Setxattr, Truncate, Utimens, Write, Create, Unlink, Opendir, Releasedir
+    Open, Read, Readdir, Release, Rmdir, Setxattr, Truncate, Utimens, Write, Create, Unlink, Opendir, Releasedir, Rename
 };
 use self::fs_impl::FSImpl;
 use serde_json::{self, Value};
@@ -482,4 +482,22 @@ impl LwsVfs for LwsVfsIns {
         };
         Ok(Response::new(reply))
     }
+
+    async fn frename(&self, request: Request<Rename>) -> Result<Response<Rename>, Status> {
+        let request = request.into_inner();
+        let from = &self.lpath(&request.path);
+        let to = &self.lpath(&request.new);
+        let ret = match self.fs.frename(from, to) {
+            Ok(ret) => ret,
+            Err(e) => {
+                println!("Error: rename file[{}]: {:?}", from, e);
+                -1
+            }
+        };
+        let reply = Rename {
+            ret,
+            ..Rename::default()
+        };
+        Ok(Response::new(reply))
+    }
 }