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#include "jemalloc/internal/jemalloc_internal.h"
#define BILLION UINT64_C(1000000000)
void
nstime_init(nstime_t *time, uint64_t ns)
{
time->ns = ns;
}
void
nstime_init2(nstime_t *time, uint64_t sec, uint64_t nsec)
{
time->ns = sec * BILLION + nsec;
}
uint64_t
nstime_ns(const nstime_t *time)
{
return (time->ns);
}
uint64_t
nstime_sec(const nstime_t *time)
{
return (time->ns / BILLION);
}
uint64_t
nstime_nsec(const nstime_t *time)
{
return (time->ns % BILLION);
}
void
nstime_copy(nstime_t *time, const nstime_t *source)
{
*time = *source;
}
int
nstime_compare(const nstime_t *a, const nstime_t *b)
{
return ((a->ns > b->ns) - (a->ns < b->ns));
}
void
nstime_add(nstime_t *time, const nstime_t *addend)
{
assert(UINT64_MAX - time->ns >= addend->ns);
time->ns += addend->ns;
}
void
nstime_subtract(nstime_t *time, const nstime_t *subtrahend)
{
assert(nstime_compare(time, subtrahend) >= 0);
time->ns -= subtrahend->ns;
}
void
nstime_imultiply(nstime_t *time, uint64_t multiplier)
{
assert((((time->ns | multiplier) & (UINT64_MAX << (sizeof(uint64_t) <<
2))) == 0) || ((time->ns * multiplier) / multiplier == time->ns));
time->ns *= multiplier;
}
void
nstime_idivide(nstime_t *time, uint64_t divisor)
{
assert(divisor != 0);
time->ns /= divisor;
}
uint64_t
nstime_divide(const nstime_t *time, const nstime_t *divisor)
{
assert(divisor->ns != 0);
return (time->ns / divisor->ns);
}
#ifdef JEMALLOC_JET
#undef nstime_update
#define nstime_update JEMALLOC_N(n_nstime_update)
#endif
bool
nstime_update(nstime_t *time)
{
nstime_t old_time;
nstime_copy(&old_time, time);
#ifdef _WIN32
{
FILETIME ft;
uint64_t ticks;
GetSystemTimeAsFileTime(&ft);
ticks = (((uint64_t)ft.dwHighDateTime) << 32) |
ft.dwLowDateTime;
time->ns = ticks * 100;
}
#elif JEMALLOC_CLOCK_GETTIME
{
struct timespec ts;
if (sysconf(_SC_MONOTONIC_CLOCK) > 0)
clock_gettime(CLOCK_MONOTONIC, &ts);
else
clock_gettime(CLOCK_REALTIME, &ts);
time->ns = ts.tv_sec * BILLION + ts.tv_nsec;
}
#else
{
struct timeval tv;
gettimeofday(&tv, NULL);
time->ns = tv.tv_sec * BILLION + tv.tv_usec * 1000;
}
#endif
/* Handle non-monotonic clocks. */
if (unlikely(nstime_compare(&old_time, time) > 0)) {
nstime_copy(time, &old_time);
return (true);
}
return (false);
}
#ifdef JEMALLOC_JET
#undef nstime_update
#define nstime_update JEMALLOC_N(nstime_update)
nstime_update_t *nstime_update = JEMALLOC_N(n_nstime_update);
#endif
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