libgo/runtime/go-nanotime.c

   1 // Copyright 2009 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // Return current time in nanoseconds.
   6
   7 #include <sys/time.h>
   8
   9 #include "runtime.h"
  10
  11 int64 runtime_nanotime (void)
  12   __attribute__ ((no_split_stack));
  13
  14 int64
  15 runtime_nanotime (void)
  16 {
  17   struct timespec ts;
  18
  19   clock_gettime (CLOCK_MONOTONIC, &ts);
  20   return (int64) ts.tv_sec * 1000000000 + (int64) ts.tv_nsec;
  21 }