From 1cad8f1308e4af86027f9ae25523b8a8b3f6592c Mon Sep 17 00:00:00 2001
From: "info@mode42.com" <info@mode42.com>
Date: Sun, 9 Aug 2026 05:27:00 +0000
Subject: Next development steps

---
 src/main.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

(limited to 'src/main.c')

diff --git a/src/main.c b/src/main.c
index 670de7a..c91982e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -23,6 +23,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <signal.h>
 #include <unistd.h>
 #include <libgen.h>
 
@@ -215,6 +216,42 @@ static void setup_install_root(const char *config_path)
     }
 }
 
+
+/* ── Signal handling ────────────────────────────────────────── */
+
+static volatile sig_atomic_t g_signal_received;
+
+static void signal_handler(int sig)
+{
+    g_signal_received = sig;
+    /* SIGPIPE: just ignore — send() with MSG_NOSIGNAL handles most cases */
+    if (sig == SIGPIPE) {
+        return;
+    }
+    /* SIGTERM/SIGINT: main loop will see g_signal_received and exit */
+}
+
+static void install_signal_handlers(void)
+{
+    struct sigaction sa;
+
+    memset(&sa, 0, sizeof(sa));
+
+    /* SIGPIPE: ignore — prevents silent death on broken socket writes */
+    sa.sa_handler = SIG_IGN;
+    sa.sa_flags = 0;
+    sigaction(SIGPIPE, &sa, NULL);
+
+    /* SIGTERM: graceful shutdown */
+    sa.sa_handler = signal_handler;
+    sigaction(SIGTERM, &sa, NULL);
+
+    /* SIGINT: graceful shutdown (Ctrl+C) */
+    sigaction(SIGINT, &sa, NULL);
+
+    g_signal_received = 0;
+}
+
 int main(int argc, char *argv[])
 {
     hybbx_service_t *service;
@@ -355,8 +392,22 @@ int main(int argc, char *argv[])
 
     hybbx_service_set_launch_binary(service, argv[0]);
 
+    install_signal_handlers();
+
+    printf("HyBBX %s running (%s). Signals: SIGPIPE=ignored, SIGTERM/SIGINT=graceful stop.\n",
+           HYBBX_VERSION_STRING, hybbx_instance_binary_name());
+
     hybbx_service_run(service);
 
+    if (g_signal_received) {
+        printf("HyBBX: received signal %d (%s) — shutting down.\n",
+               g_signal_received,
+               g_signal_received == SIGTERM ? "SIGTERM" :
+               g_signal_received == SIGINT  ? "SIGINT"  : "unknown");
+    } else {
+        printf("HyBBX: service loop exited normally.\n");
+    }
+
     if (hybbx_service_shutdown_mode(service) == HYBBX_SHUTDOWN_RESTART) {
         hybbx_service_restart_exec(service);
     }
@@ -367,5 +418,7 @@ int main(int argc, char *argv[])
     hybbx_commands_registry_shutdown();
     hybbx_service_destroy(service);
 
+    printf("HyBBX: shutdown complete (exit %d, signal=%d).\n",
+           EXIT_SUCCESS, (int)g_signal_received);
     return EXIT_SUCCESS;
 }
-- 
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