now_ns 312 src/punutil/cardutil.c uint64_t now_ns = (uint64_t)now . tv_sec * 1000000000ULL + now . tv_nsec; now_ns 315 src/punutil/cardutil.c if (now_ns >= target_ns) now_ns 318 src/punutil/cardutil.c uint64_t diff_ns = target_ns - now_ns;