From c17be437676d0970127cdc7544f845d41a2f8331 Mon Sep 17 00:00:00 2001
From: JP Meijers <jp.meijers@canonical.com>
Date: Fri, 20 Feb 2026 17:21:48 +0200
Subject: [PATCH] Set SO_REUSEADDR on http port

---
 tools/server/server-http.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/server/server-http.cpp b/tools/server/server-http.cpp
index 00897eeea5..466871e8a1 100644
--- a/tools/server/server-http.cpp
+++ b/tools/server/server-http.cpp
@@ -72,6 +72,12 @@ bool server_http_context::init(const common_params & params) {
     srv.reset(new httplib::Server());
 #endif
 
+    // Enable address reuse to allow immediate restart of server
+    srv->set_socket_options([](socket_t sock) {
+        int val = 1;
+        setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
+    });
+
     srv->set_default_headers({{"Server", "llama.cpp"}});
     srv->set_logger(log_server_request);
     srv->set_exception_handler([](const httplib::Request &, httplib::Response & res, const std::exception_ptr & ep) {