void tsc2timespec(uint64_t tsc_time, struct timespec *ts)
{
ts->tv_sec = tsc2sec(tsc_time);
/* subtract off everything but the remainder */
tsc_time -= sec2tsc(ts->tv_sec);
ts->tv_nsec = tsc2nsec(tsc_time);
}
/*
* read binary time info. all numbers are little endian.
* ticks and nsec are syncronized.
*/
static int readbintime(char *buf, int n)
{
int i;
int64_t nsec, ticks;
uint8_t *b = (uint8_t *) buf;
i = 0;
if (fasthz == 0LL)
fasthz = system_timing.tsc_freq;
#if 0
fastticks((uint64_t *) & fasthz);
nsec = todget(&ticks);
#endif
ticks = read_tsc();
nsec = tsc2nsec(ticks);
if (n >= 3 * sizeof(uint64_t)) {
int64_t2le(b + 2 * sizeof(uint64_t), fasthz);
i += sizeof(uint64_t);
}
if (n >= 2 * sizeof(uint64_t)) {
int64_t2le(b + sizeof(uint64_t), ticks);
i += sizeof(uint64_t);
}
if (n >= 8) {
int64_t2le(b, nsec);
i += sizeof(int64_t);
}
return i;
}
static void tsc2timespec(uint64_t tsc, struct timespec *ts)
{
uint64_t nsec = tsc2nsec(tsc);
ts->tv_sec = nsec / 1000000000;
ts->tv_nsec = nsec % 1000000000;
}
/*
* like the old #c/time but with added info. Return
*
* secs nanosecs fastticks fasthz
*/
static int readtime(uint32_t off, char *buf, int n)
{
int64_t nsec, ticks;
long sec;
char str[7 * NUMSIZE];
if (fasthz == 0LL)
fasthz = system_timing.tsc_freq;
#if 0
fastticks((uint64_t *) & fasthz);
nsec = todget(&ticks);
#endif
ticks = read_tsc();
nsec = tsc2nsec(ticks);
sec = nsec / 1000000000ULL;
snprintf(str, sizeof(str), "%*lud %*llud %*llud %*llud ",
NUMSIZE - 1, sec,
VLNUMSIZE - 1, nsec, VLNUMSIZE - 1, ticks, VLNUMSIZE - 1, fasthz);
return consreadstr(off, buf, n, str);
}
uint64_t epoch_nsec(void)
{
return tsc2nsec(epoch_tsc());
}
