Function setFatalSignalHandler

lib/exceptionhandler/exceptionhandler.cpp:293–364

* Set signal handlers for fatal signals on POSIX systems * * \param signalHandler Pointer to the signal handler function */

 * \param signalHandler Pointer to the signal handler function
 */
static void setFatalSignalHandler(SigActionHandler signalHandler)
{
	struct sigaction new_handler;

	sigemptyset(&new_handler.sa_mask);
#ifdef SA_SIGINFO
	new_handler.sa_flags = SA_SIGINFO;
	new_handler.sa_sigaction = signalHandler;
#else
	new_handler.sa_handler = signalHandler;
#endif

	sigaction(SIGABRT, nullptr, &oldAction[SIGABRT]);
	if (oldAction[SIGABRT].sa_handler != SIG_IGN)
	{
		sigaction(SIGABRT, &new_handler, nullptr);
	}

	sigaction(SIGBUS, nullptr, &oldAction[SIGBUS]);
	if (oldAction[SIGBUS].sa_handler != SIG_IGN)
	{
		sigaction(SIGBUS, &new_handler, nullptr);
	}

	sigaction(SIGFPE, nullptr, &oldAction[SIGFPE]);
	if (oldAction[SIGFPE].sa_handler != SIG_IGN)
	{
		sigaction(SIGFPE, &new_handler, nullptr);
	}

	sigaction(SIGILL, nullptr, &oldAction[SIGILL]);
	if (oldAction[SIGILL].sa_handler != SIG_IGN)
	{
		sigaction(SIGILL, &new_handler, nullptr);
	}

	sigaction(SIGQUIT, nullptr, &oldAction[SIGQUIT]);
	if (oldAction[SIGQUIT].sa_handler != SIG_IGN)
	{
		sigaction(SIGQUIT, &new_handler, nullptr);
	}

	sigaction(SIGSEGV, nullptr, &oldAction[SIGSEGV]);
	if (oldAction[SIGSEGV].sa_handler != SIG_IGN)
	{
		sigaction(SIGSEGV, &new_handler, nullptr);
	}

#if _XOPEN_UNIX
	sigaction(SIGSYS, nullptr, &oldAction[SIGSYS]);
	if (oldAction[SIGSYS].sa_handler != SIG_IGN)
	{
		sigaction(SIGSYS, &new_handler, nullptr);
	}

	sigaction(SIGXCPU, nullptr, &oldAction[SIGXCPU]);
	if (oldAction[SIGXCPU].sa_handler != SIG_IGN)
	{