gcc-4.7/libgo/runtime/go-nanotime.c


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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Return current time in nanoseconds.

#include <sys/time.h>

#include "runtime.h"

int64 runtime_nanotime (void)
  __attribute__ ((no_split_stack));

int64
runtime_nanotime (void)
{
  struct timeval tv;

  gettimeofday (&tv, NULL);
  return (int64) tv.tv_sec * 1000000000 + (int64) tv.tv_usec * 1000;
}