From d633f61278c4e2c5faff7ec8ceb69f769b9ffef7 Mon Sep 17 00:00:00 2001
From: David Fridrich <fridrich.david19@gmail.com>
Date: Tue, 14 Apr 2026 13:48:13 +0200
Subject: [PATCH] fix: add SO_REUSEADDR to sock.py to prevent bind failures on
 restart

---
 CHANGELOG.md            | 3 +++
 src/func_python/sock.py | 1 +
 2 files changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 982f041f..773c96bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,9 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 ### Deprecated
 ### Removed
 ### Fixed
+
+- Set SO_REUSEADDR on pre-bound sockets to prevent bind failures on restart
+
 ### Security
 
 ## 0.8.0 - 2026-04-13
diff --git a/src/func_python/sock.py b/src/func_python/sock.py
index 4e82b022..c7d62978 100644
--- a/src/func_python/sock.py
+++ b/src/func_python/sock.py
@@ -41,6 +41,7 @@ def bind() -> list[str]:
         else:
             sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 
+        sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
         try:
             sock.bind((host, int(port)))
             result.append(f'fd://{sock.detach()}')