allow_err with msg

Signed-off-by: fufesou <shuanglongchen@yeah.net>

libs/hbb_common/src/lib.rs

@@ -66,6 +66,21 @@ macro_rules! allow_err {
         } else {
         }
     };
+    
+    ($e:expr, $($arg:tt)*) => {
+        if let Err(err) = $e {
+            log::debug!(
+                "{:?}, {}, {}:{}:{}:{}",
+                err,
+                format_args!($($arg)*),
+                module_path!(),
+                file!(),
+                line!(),
+                column!()
+            );
+        } else {
+        }
+    };
 }
 
 #[inline]
@@ -250,4 +265,10 @@ mod tests {
         let addr = SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::new(192, 168, 16, 32), 21116));
         assert_eq!(addr, AddrMangle::decode(&AddrMangle::encode(addr)));
     }
+
+    #[test]
+    fn test_allow_err() {
+        allow_err!(Err("test err") as Result<(), &str>);
+        allow_err!(Err("test err with msg") as Result<(), &str>, "prompt {}", "failed");
+    }
 }