SA_RESTART
sa.sa_flags = SA_RESTART;
sa.sa_flags = SA_RESTART;
|| (!alwaysRestart && (handler.sa_flags & SA_RESTART) == 0)) {
action.sa_flags &= ~SA_RESTART;
action.sa_flags |= SA_RESTART;
action.sa_flags &= ~SA_RESTART;
action.sa_flags |= SA_RESTART;
#ifdef SA_RESTART
ADD_SA_FLAG(SA_RESTART),
? SA_RESTART : 0;
newAction.sa_flags = SA_RESTART | SA_ONSTACK;
newAction.sa_flags = SA_ONESHOT | SA_ONSTACK | SA_RESTART;
sa.sa_flags = SA_RESTART;