/* internal signal lists */
static int sigerr[] = { SIG_FOR_TIMER, SIGSEGV, SIGFPE, SIGILL, SIGBUS, 0 };
static int sigterm[] = { SIGINT, SIGABRT, SIGTERM, 0 };
+static int exiting = 0;
+
/*
* Dumps the current stack
*/
return result;
}
+/*
+ * rescue exit
+ */
+static void on_rescue_exit(int signum)
+{
+ ERROR("Rescue exit for signal %d: %s", signum, strsignal(signum));
+ _exit(exiting);
+}
+
+/*
+ * Do a safe exit
+ */
+static void safe_exit(int code)
+{
+ install(on_rescue_exit, sigerr);
+ install(on_rescue_exit, sigterm);
+ exiting = code;
+ exit(code);
+}
/* Handles signals that terminate the process */
static void on_signal_terminate (int signum)
if (signum == SIGABRT)
safe_dumpstack(3, signum);
}
- exit(1);
+ safe_exit(1);
}
/* Handles monitored signals that can be continued */
longjmp(*error_handler, signum);
ERROR("Unmonitored signal %d received: %s", signum, strsignal(signum));
- exit(2);
+ safe_exit(2);
}
int sig_monitor_init()