v0.2.4 - Fix SIGINT handling so Ctrl-C exits didactyl reliably

README.md

@@ -54,11 +54,11 @@ Skills compose by adoption-list order (`10123`) and trigger tags carry runtime e
 
 Didactyl will support local inference, which is very privacy preserving. Remote inference does however have it's advantages, and in those cases Didactyl supports using Bitcoin Lightning and eCash inference providers.
 
-## Current Status — v0.2.3
+## Current Status — v0.2.4
 
 **Active build — this project is barely working. Experiment at your own risk.**
 
-> Last release update: v0.2.3 — Silence unused static helper warnings after migration rollback reapply
+> Last release update: v0.2.4 — Fix SIGINT handling so Ctrl-C exits didactyl reliably
 
 - Connects to configured relays with auto-reconnect and relay state transition logging
 - Publishes configured startup events per relay as each relay becomes connected

src/main.c

@@ -56,8 +56,15 @@ static void on_self_skill_eose_load_triggers(int event_count, void* user_data) {
     }
 }
 
+static volatile sig_atomic_t g_sigint_count = 0;
+
 static void signal_handler(int signum) {
-    (void)signum;
+    if (signum == SIGINT) {
+        g_sigint_count++;
+        if (g_sigint_count >= 2) {
+            _exit(130);
+        }
+    }
     g_running = 0;
 }
 
@@ -1442,9 +1449,21 @@ int main(int argc, char** argv) {
         }
     }
 
-    signal(SIGINT, signal_handler);
-    signal(SIGTERM, signal_handler);
-    signal(SIGPIPE, SIG_IGN);
+    struct sigaction sa;
+    memset(&sa, 0, sizeof(sa));
+    sa.sa_handler = signal_handler;
+    sigemptyset(&sa.sa_mask);
+    sa.sa_flags = 0;
+
+    (void)sigaction(SIGINT, &sa, NULL);
+    (void)sigaction(SIGTERM, &sa, NULL);
+
+    struct sigaction sa_pipe;
+    memset(&sa_pipe, 0, sizeof(sa_pipe));
+    sa_pipe.sa_handler = SIG_IGN;
+    sigemptyset(&sa_pipe.sa_mask);
+    sa_pipe.sa_flags = 0;
+    (void)sigaction(SIGPIPE, &sa_pipe, NULL);
 
     int http_api_started = 0;
     if (cfg.api.enabled) {

src/main.h

@@ -12,8 +12,8 @@
 // Using DIDACTYL_ prefix to avoid conflicts with nostr_core_lib VERSION macros
 #define DIDACTYL_VERSION_MAJOR 0
 #define DIDACTYL_VERSION_MINOR 2
-#define DIDACTYL_VERSION_PATCH 3
-#define DIDACTYL_VERSION "v0.2.3"
+#define DIDACTYL_VERSION_PATCH 4
+#define DIDACTYL_VERSION "v0.2.4"
 
 // Agent metadata
 #define DIDACTYL_NAME "Didactyl"