TFD_NONBLOCK
nflags |= TFD_NONBLOCK;
if (flags & ~(TFD_CLOEXEC | TFD_NONBLOCK)) {
if (flags & TFD_NONBLOCK) {
~(TFD_CLOEXEC | TFD_NONBLOCK))) == -1);
RL(fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK));
RL(fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK));
TFD_NONBLOCK)) >= 0);
ATF_REQUIRE((fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK)) >= 0);
ATF_REQUIRE((fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK)) >= 0);
TFD_NONBLOCK | TFD_CLOEXEC)) >= 0);