2016-02-22 03:25:02 +08:00
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#include "jemalloc/internal/jemalloc_internal.h"
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2017-01-20 13:41:41 +08:00
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#define BILLION UINT64_C(1000000000)
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2016-02-22 03:25:02 +08:00
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void
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2017-01-16 08:56:30 +08:00
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nstime_init(nstime_t *time, uint64_t ns) {
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2016-02-22 03:25:02 +08:00
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time->ns = ns;
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}
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void
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2017-01-16 08:56:30 +08:00
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nstime_init2(nstime_t *time, uint64_t sec, uint64_t nsec) {
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2016-02-22 03:25:02 +08:00
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time->ns = sec * BILLION + nsec;
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}
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uint64_t
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2017-01-16 08:56:30 +08:00
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nstime_ns(const nstime_t *time) {
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2017-01-20 10:15:45 +08:00
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return time->ns;
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2016-02-22 03:25:02 +08:00
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}
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uint64_t
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2017-01-16 08:56:30 +08:00
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nstime_sec(const nstime_t *time) {
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2017-01-20 10:15:45 +08:00
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return time->ns / BILLION;
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2016-02-22 03:25:02 +08:00
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}
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uint64_t
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2017-01-16 08:56:30 +08:00
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nstime_nsec(const nstime_t *time) {
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2017-01-20 10:15:45 +08:00
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return time->ns % BILLION;
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2016-02-22 03:25:02 +08:00
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}
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void
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2017-01-16 08:56:30 +08:00
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nstime_copy(nstime_t *time, const nstime_t *source) {
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2016-02-22 03:25:02 +08:00
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*time = *source;
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}
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int
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2017-01-16 08:56:30 +08:00
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nstime_compare(const nstime_t *a, const nstime_t *b) {
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2017-01-20 10:15:45 +08:00
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return (a->ns > b->ns) - (a->ns < b->ns);
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2016-02-22 03:25:02 +08:00
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}
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void
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2017-01-16 08:56:30 +08:00
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nstime_add(nstime_t *time, const nstime_t *addend) {
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2016-02-22 03:25:02 +08:00
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assert(UINT64_MAX - time->ns >= addend->ns);
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time->ns += addend->ns;
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}
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void
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2017-01-16 08:56:30 +08:00
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nstime_subtract(nstime_t *time, const nstime_t *subtrahend) {
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2016-02-22 03:25:02 +08:00
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assert(nstime_compare(time, subtrahend) >= 0);
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time->ns -= subtrahend->ns;
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}
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void
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2017-01-16 08:56:30 +08:00
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nstime_imultiply(nstime_t *time, uint64_t multiplier) {
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2016-02-22 03:25:02 +08:00
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assert((((time->ns | multiplier) & (UINT64_MAX << (sizeof(uint64_t) <<
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2))) == 0) || ((time->ns * multiplier) / multiplier == time->ns));
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time->ns *= multiplier;
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}
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void
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2017-01-16 08:56:30 +08:00
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nstime_idivide(nstime_t *time, uint64_t divisor) {
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2016-02-22 03:25:02 +08:00
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assert(divisor != 0);
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time->ns /= divisor;
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}
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uint64_t
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2017-01-16 08:56:30 +08:00
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nstime_divide(const nstime_t *time, const nstime_t *divisor) {
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2016-02-22 03:25:02 +08:00
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assert(divisor->ns != 0);
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2017-01-20 10:15:45 +08:00
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return time->ns / divisor->ns;
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2016-02-22 03:25:02 +08:00
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}
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2016-10-07 23:47:16 +08:00
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#ifdef _WIN32
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2016-10-11 13:15:10 +08:00
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# define NSTIME_MONOTONIC true
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2016-10-07 23:47:16 +08:00
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static void
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2017-01-16 08:56:30 +08:00
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nstime_get(nstime_t *time) {
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2016-10-07 23:47:16 +08:00
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FILETIME ft;
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uint64_t ticks_100ns;
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GetSystemTimeAsFileTime(&ft);
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ticks_100ns = (((uint64_t)ft.dwHighDateTime) << 32) | ft.dwLowDateTime;
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nstime_init(time, ticks_100ns * 100);
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}
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2016-10-30 13:55:08 +08:00
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#elif JEMALLOC_HAVE_CLOCK_MONOTONIC_COARSE
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2016-10-11 13:15:10 +08:00
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# define NSTIME_MONOTONIC true
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2016-10-07 23:47:16 +08:00
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static void
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2017-01-16 08:56:30 +08:00
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nstime_get(nstime_t *time) {
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2016-10-07 23:47:16 +08:00
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struct timespec ts;
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2016-10-30 13:55:08 +08:00
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clock_gettime(CLOCK_MONOTONIC_COARSE, &ts);
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2016-10-07 23:47:16 +08:00
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nstime_init2(time, ts.tv_sec, ts.tv_nsec);
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}
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#elif JEMALLOC_HAVE_CLOCK_MONOTONIC
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2016-10-11 13:15:10 +08:00
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# define NSTIME_MONOTONIC true
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2016-10-07 23:47:16 +08:00
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static void
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2017-01-16 08:56:30 +08:00
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nstime_get(nstime_t *time) {
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2016-10-07 23:47:16 +08:00
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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nstime_init2(time, ts.tv_sec, ts.tv_nsec);
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}
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#elif JEMALLOC_HAVE_MACH_ABSOLUTE_TIME
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2016-10-11 13:15:10 +08:00
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# define NSTIME_MONOTONIC true
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2016-10-07 23:47:16 +08:00
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static void
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2017-01-16 08:56:30 +08:00
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nstime_get(nstime_t *time) {
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2016-10-07 23:47:16 +08:00
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nstime_init(time, mach_absolute_time());
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}
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#else
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2016-10-11 13:15:10 +08:00
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# define NSTIME_MONOTONIC false
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2016-10-07 23:47:16 +08:00
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static void
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2017-01-16 08:56:30 +08:00
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nstime_get(nstime_t *time) {
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2016-10-07 23:47:16 +08:00
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struct timeval tv;
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gettimeofday(&tv, NULL);
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nstime_init2(time, tv.tv_sec, tv.tv_usec * 1000);
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}
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#endif
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2016-10-11 13:15:10 +08:00
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#ifdef JEMALLOC_JET
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#undef nstime_monotonic
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2017-01-20 13:41:41 +08:00
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#define nstime_monotonic JEMALLOC_N(n_nstime_monotonic)
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2016-10-11 13:15:10 +08:00
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#endif
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bool
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2017-01-16 08:56:30 +08:00
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nstime_monotonic(void) {
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2017-01-20 10:15:45 +08:00
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return NSTIME_MONOTONIC;
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2016-10-11 13:15:10 +08:00
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#undef NSTIME_MONOTONIC
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}
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#ifdef JEMALLOC_JET
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#undef nstime_monotonic
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2017-01-20 13:41:41 +08:00
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#define nstime_monotonic JEMALLOC_N(nstime_monotonic)
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2016-10-11 13:15:10 +08:00
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nstime_monotonic_t *nstime_monotonic = JEMALLOC_N(n_nstime_monotonic);
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#endif
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2016-02-22 03:25:02 +08:00
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#ifdef JEMALLOC_JET
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#undef nstime_update
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2017-01-20 13:41:41 +08:00
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#define nstime_update JEMALLOC_N(n_nstime_update)
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2016-02-22 03:25:02 +08:00
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#endif
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bool
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2017-01-16 08:56:30 +08:00
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nstime_update(nstime_t *time) {
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2016-02-22 03:25:02 +08:00
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nstime_t old_time;
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nstime_copy(&old_time, time);
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2016-10-07 23:47:16 +08:00
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nstime_get(time);
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2016-02-22 03:25:02 +08:00
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/* Handle non-monotonic clocks. */
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if (unlikely(nstime_compare(&old_time, time) > 0)) {
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nstime_copy(time, &old_time);
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2017-01-20 10:15:45 +08:00
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return true;
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2016-02-22 03:25:02 +08:00
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}
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2017-01-20 10:15:45 +08:00
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return false;
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2016-02-22 03:25:02 +08:00
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}
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#ifdef JEMALLOC_JET
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#undef nstime_update
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2017-01-20 13:41:41 +08:00
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#define nstime_update JEMALLOC_N(nstime_update)
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2016-04-19 06:11:20 +08:00
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nstime_update_t *nstime_update = JEMALLOC_N(n_nstime_update);
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2016-02-22 03:25:02 +08:00
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#endif
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