1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/*
* Author: Sven Gothel <sgothel@jausoft.com>
* Copyright (c) 2020 Gothel Software e.K.
* Copyright (c) 2020 ZAFENA AB
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "org_jau_sys_Clock.h"
#include <cstdint>
#include <cinttypes>
#include <ctime>
#include <jau/environment.hpp>
#include "jau/jni/helper_jni.hpp"
static const int64_t NanoPerMilli = 1000000L;
static const int64_t MilliPerOne = 1000L;
void Java_org_jau_sys_Clock_getMonotonicTimeImpl(JNIEnv *env, jclass clazz, jlongArray jval) {
(void)clazz;
try {
if( nullptr == jval ) {
throw jau::IllegalArgumentException("val null", E_FILE_LINE);
}
const size_t in_size = env->GetArrayLength(jval);
if( 2 > in_size ) {
throw jau::IllegalArgumentException("val size "+std::to_string(in_size)+" < 2", E_FILE_LINE);
}
jau::jni::JNICriticalArray<int64_t, jlongArray> criticalArray(env); // RAII - release
int64_t * val_ptr = criticalArray.get(jval, criticalArray.Mode::UPDATE_AND_RELEASE);
if( nullptr == val_ptr ) {
throw jau::InternalError("GetPrimitiveArrayCritical(address val array) is null", E_FILE_LINE);
}
struct timespec t { 0, 0 };
::clock_gettime(CLOCK_MONOTONIC, &t);
val_ptr[0] = (int64_t)t.tv_sec;
val_ptr[1] = (int64_t)t.tv_nsec;
} catch(...) {
rethrow_and_raise_java_exception_jau(env);
}
}
void Java_org_jau_sys_Clock_getWallClockTimeImpl(JNIEnv *env, jclass clazz, jlongArray jval) {
(void)clazz;
try {
if( nullptr == jval ) {
throw jau::IllegalArgumentException("val null", E_FILE_LINE);
}
const size_t in_size = env->GetArrayLength(jval);
if( 2 > in_size ) {
throw jau::IllegalArgumentException("val size "+std::to_string(in_size)+" < 2", E_FILE_LINE);
}
jau::jni::JNICriticalArray<int64_t, jlongArray> criticalArray(env); // RAII - release
int64_t * val_ptr = criticalArray.get(jval, criticalArray.Mode::UPDATE_AND_RELEASE);
if( nullptr == val_ptr ) {
throw jau::InternalError("GetPrimitiveArrayCritical(address val array) is null", E_FILE_LINE);
}
struct timespec t { 0, 0 };
::clock_gettime(CLOCK_REALTIME, &t);
val_ptr[0] = (int64_t)t.tv_sec;
val_ptr[1] = (int64_t)t.tv_nsec;
} catch(...) {
rethrow_and_raise_java_exception_jau(env);
}
}
/**
* See <http://man7.org/linux/man-pages/man2/clock_gettime.2.html>
* <p>
* Regarding avoiding kernel via VDSO,
* see <http://man7.org/linux/man-pages/man7/vdso.7.html>,
* clock_gettime seems to be well supported at least on kernel >= 4.4.
* Only bfin and sh are missing, while ia64 seems to be complicated.
*/
jlong Java_org_jau_sys_Clock_currentTimeMillis(JNIEnv *env, jclass clazz) {
(void)env;
(void)clazz;
struct timespec t { 0, 0 };
::clock_gettime(CLOCK_MONOTONIC, &t);
int64_t res = static_cast<int64_t>( t.tv_sec ) * MilliPerOne +
static_cast<int64_t>( t.tv_nsec ) / NanoPerMilli;
return (jlong)res;
}
jlong Java_org_jau_sys_Clock_wallClockSeconds(JNIEnv *env, jclass clazz) {
(void)env;
(void)clazz;
struct timespec t { 0, 0 };
::clock_gettime(CLOCK_REALTIME, &t);
return (jlong)( static_cast<int64_t>( t.tv_sec ) );
}
jlong Java_org_jau_sys_Clock_startupTimeMillisImpl(JNIEnv *env, jclass clazz) {
(void)env;
(void)clazz;
return (jlong)( static_cast<int64_t>( jau::environment::startupTimeMilliseconds ) );
}
|
