Apollo
10.0
自动驾驶开放平台
time_util.h
浏览该文件的文档.
1
/******************************************************************************
2
* Copyright 2017 The Apollo Authors. All Rights Reserved.
3
*
4
* Licensed under the Apache License, Version 2.0 (the "License");
5
* you may not use this file except in compliance with the License.
6
* You may obtain a copy of the License at
7
*
8
* http://www.apache.org/licenses/LICENSE-2.0
9
*
10
* Unless required by applicable law or agreed to in writing, software
11
* distributed under the License is distributed on an "AS IS" BASIS,
12
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13
* See the License for the specific language governing permissions and
14
* limitations under the License.
15
*****************************************************************************/
16
17
#pragma once
18
19
#include "
cyber/common/macros.h
"
20
21
namespace
apollo
{
22
namespace
common {
23
namespace
util {
24
25
class
TimeUtil
{
26
public
:
27
// @brief: UNIX timestamp to GPS timestamp, in seconds.
28
static
double
Unix2Gps
(
double
unix_time) {
29
double
gps_time = unix_time - UNIX_GPS_DIFF;
30
if
(unix_time < LEAP_SECOND_TIMESTAMP) {
31
gps_time -= 1.0;
32
}
33
return
gps_time;
34
}
35
36
// @brief: GPS timestamp to UNIX timestamp, in seconds.
37
static
double
Gps2Unix
(
double
gps_time) {
38
double
unix_time = gps_time + UNIX_GPS_DIFF;
39
if
(unix_time + 1 < LEAP_SECOND_TIMESTAMP) {
40
unix_time += 1.0;
41
}
42
return
unix_time;
43
}
44
45
private
:
46
// unix timestamp(1970.01.01) is different from gps timestamp(1980.01.06)
47
static
const
int
UNIX_GPS_DIFF = 315964782;
48
// unix timestamp(2016.12.31 23:59:59(60) UTC/GMT)
49
static
const
int
LEAP_SECOND_TIMESTAMP = 1483228799;
50
51
DISALLOW_COPY_AND_ASSIGN
(
TimeUtil
);
52
};
53
54
}
// namespace util
55
}
// namespace common
56
}
// namespace apollo
apollo::common::util::TimeUtil
Definition
time_util.h:25
apollo::common::util::TimeUtil::Gps2Unix
static double Gps2Unix(double gps_time)
Definition
time_util.h:37
apollo::common::util::TimeUtil::Unix2Gps
static double Unix2Gps(double unix_time)
Definition
time_util.h:28
macros.h
DISALLOW_COPY_AND_ASSIGN
#define DISALLOW_COPY_AND_ASSIGN(classname)
Definition
macros.h:48
apollo
class register implement
Definition
arena_queue.h:37
modules
common
util
time_util.h