#include <time.h>

/* There is no other implemented value than TIME_UTC; all other values
 * are considered erroneous. */
int timespec_get(struct timespec * ts, int base)
{
	clockid_t clockid = -1;
	switch (base) {
	default:
		return 0;
	case TIME_UTC:
		clockid = CLOCK_REALTIME;
		break;
	case TIME_MONOTONIC:
		clockid = CLOCK_MONOTONIC;
		break;
	case TIME_ACTIVE:
		clockid = CLOCK_PROCESS_CPUTIME_ID;
		break;
	case TIME_THREAD_ACTIVE:
		clockid = CLOCK_THREAD_CPUTIME_ID;
		break;
	case TIME_MONOTONIC_RAW:
		clockid = CLOCK_MONOTONIC_RAW;
		break;
	case TIME_UTC_COARSE:
		clockid = CLOCK_REALTIME_COARSE;
		break;
	case TIME_MONOTONIC_COARSE:
		clockid = CLOCK_MONOTONIC_COARSE;
		break;
	case TIME_BOOTTIME:
		clockid = CLOCK_BOOTTIME;
		break;
	case TIME_UTC_ALARM:
		clockid = CLOCK_REALTIME_ALARM;
		break;
	case TIME_BOOTTIME_ALARM:
		clockid = CLOCK_BOOTTIME_ALARM;
		break;
	case TIME_SGI_CYCLE:
		clockid = CLOCK_SGI_CYCLE;
		break;
	case TIME_TAI:
		clockid = CLOCK_TAI;
		break;
	}
	int ret = __clock_gettime(clockid, ts);
	return ret < 0 ? 0 : base;
}