EPOLL_CLOEXEC
SCARG(&ca, flags) |= EPOLL_CLOEXEC;
if ((SCARG(uap, flags) & ~(EPOLL_CLOEXEC)) != 0)
if (SCARG(uap, flags) & EPOLL_CLOEXEC)
RL(fd = epoll_create1(EPOLL_CLOEXEC));