gcc/libgo/runtime/go-nanotime.c

23 lines
493 B
C

// 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 time in nanoseconds. This is only used for computing runtime.
#include <sys/time.h>
#include "go-assert.h"
#include "runtime.h"
int64
runtime_nanotime (void)
{
int i;
struct timeval tv;
i = gettimeofday (&tv, NULL);
__go_assert (i == 0);
return (int64) tv.tv_sec * 1000000000 + (int64) tv.tv_usec * 1000;
}