From 43d208a39ff57cf7e359feae6e2f2c281b619852 Mon Sep 17 00:00:00 2001
From: TudbuT <tudbut@tudbut.de>
Date: Sun, 8 Oct 2023 14:31:47 +0200
Subject: [PATCH] massive performance++

---
 src/connection.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/connection.rs b/src/connection.rs
index 5a5327a..090d829 100644
--- a/src/connection.rs
+++ b/src/connection.rs
@@ -147,6 +147,9 @@ impl Connection {
         self.is_nb
     }
     pub fn set_nonblocking(&mut self, nonblocking: bool) -> io::Result<()> {
+        if self.is_nb == nonblocking {
+            return Ok(());
+        }
         self.is_nb = nonblocking;
         (self.set_nonblocking_thunk)(self.data, nonblocking)
     }