refactor

Signed-off-by: Connor1996 <[email protected]>

Author: Connor1996

src/engine.rs

@@ -5,6 +5,7 @@ use std::os::unix::io::RawFd;
 use std::path::Path;
 use std::sync::Arc;
 
+use crate::env::RecoverExt;
 use fail::fail_point;
 use log::error;
 use nix::errno::Errno;
@@ -274,6 +275,8 @@ impl WriteExt for LogFile {
 #[derive(Clone)]
 pub struct DefaultFileSystem;
 
+impl RecoverExt for DefaultFileSystem {}
+
 impl FileSystem for DefaultFileSystem {
     type Handle = LogFd;
     type Reader = LogFile;