1/********************************************************************
2 * Copyright (c) 2013 - 2014, Pivotal Inc.
3 * All rights reserved.
4 *
5 * Author: Zhanwei Wang
6 ********************************************************************/
7/********************************************************************
8 * 2014 -
9 * open source under Apache License Version 2.0
10 ********************************************************************/
11/**
12 * Licensed to the Apache Software Foundation (ASF) under one
13 * or more contributor license agreements. See the NOTICE file
14 * distributed with this work for additional information
15 * regarding copyright ownership. The ASF licenses this file
16 * to you under the Apache License, Version 2.0 (the
17 * "License"); you may not use this file except in compliance
18 * with the License. You may obtain a copy of the License at
19 *
20 * http://www.apache.org/licenses/LICENSE-2.0
21 *
22 * Unless required by applicable law or agreed to in writing, software
23 * distributed under the License is distributed on an "AS IS" BASIS,
24 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
25 * See the License for the specific language governing permissions and
26 * limitations under the License.
27 */
28#ifndef _HDFS_LIBHDFS3_COMMON_DATETIME_H_
29#define _HDFS_LIBHDFS3_COMMON_DATETIME_H_
30
31#include "platform.h"
32
33#include <ctime>
34#include <cassert>
35
36#if defined(NEED_BOOST) && defined(HAVE_BOOST_CHRONO)
37
38#include <boost/chrono.hpp>
39
40namespace Hdfs {
41namespace Internal {
42
43using namespace boost::chrono;
44
45}
46}
47
48#elif defined(HAVE_STD_CHRONO)
49
50#include <chrono>
51
52namespace Hdfs {
53namespace Internal {
54
55using namespace std::chrono;
56
57#ifndef HAVE_STEADY_CLOCK
58typedef std::chrono::monotonic_clock steady_clock;
59#endif
60
61}
62}
63#else
64#error "no chrono library is available"
65#endif
66
67namespace Hdfs {
68namespace Internal {
69
70template<typename TimeStamp>
71static int64_t ToMilliSeconds(TimeStamp const & s, TimeStamp const & e) {
72 assert(e >= s);
73 return duration_cast<milliseconds>(e - s).count();
74}
75
76}
77}
78
79#endif /* _HDFS_LIBHDFS3_COMMON_DATETIME_H_ */
80