It may be better if we have something similar to (pseudocode) for kernel APIs: struct uptime_t u = { .time = 0 }; ioctl(open("/proc/uptime")

It may be better if we have something similar to (pseudocode) for kernel APIs: struct uptime_t u = { .time = 0 }; ioctl(open("/proc/uptime"), GET_UPTIME, &uptime);