C++ (Cpp) THREAD_SET_SIGNAL_MASKの例

コード例 #1

ファイル: tcsd_threads.c プロジェクト: secureTV/android_tcsd

/* Since we don't want any of the worker threads to catch any signals, we must mask off any
 * potential signals here after creating the threads.  If any of the created threads catch a signal,
 * they'd eventually call join on themselves, causing a deadlock.
 */
void
thread_signal_init()
{
	sigset_t thread_sigmask;
	int rc;

	if ((rc = sigfillset(&thread_sigmask))) {
		LogError("sigfillset failed: error=%d: %s", rc, strerror(rc));
		LogError("worker thread %ld is exiting prematurely", THREAD_ID);
		THREAD_EXIT(NULL);
	}

	if ((rc = THREAD_SET_SIGNAL_MASK(SIG_BLOCK, &thread_sigmask, NULL))) {
		LogError("Setting thread sigmask failed: error=%d: %s", rc, strerror(rc));
		LogError("worker thread %ld is exiting prematurely", THREAD_ID);
		THREAD_EXIT(NULL);
	}
}

コード例 #2

ファイル: svrside.c プロジェクト: cooljeanius/trousers-0.3.11.2

static TSS_RESULT
signals_init(void)
{
	int rc;
	sigset_t sigmask;
	struct sigaction sa;

	sigemptyset(&sigmask);
	if ((rc = sigaddset(&sigmask, SIGTERM))) {
		LogError("sigaddset: %s", strerror(errno));
		return TCSERR(TSS_E_INTERNAL_ERROR);
	}
	if ((rc = sigaddset(&sigmask, SIGHUP))) {
		LogError("sigaddset: %s", strerror(errno));
		return TCSERR(TSS_E_INTERNAL_ERROR);
	}

	if ((rc = THREAD_SET_SIGNAL_MASK(SIG_UNBLOCK, &sigmask, NULL))) {
		LogError("Setting thread signal mask: %s", strerror(rc));
		return TCSERR(TSS_E_INTERNAL_ERROR);
	}

	sa.sa_flags = 0;
	sigemptyset(&sa.sa_mask);
	sa.sa_handler = tcsd_signal_term;
	if ((rc = sigaction(SIGTERM, &sa, NULL))) {
		LogError("signal SIGTERM not registered: %s", strerror(errno));
		return TCSERR(TSS_E_INTERNAL_ERROR);
	}

	sa.sa_handler = tcsd_signal_hup;	
	if ((rc = sigaction(SIGHUP, &sa, NULL))) {
		LogError("signal SIGHUP not registered: %s", strerror(errno));
		return TCSERR(TSS_E_INTERNAL_ERROR);
	}

	return TSS_SUCCESS;
}