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
124
125
126
127
128
129
130
131
132
133
134
135
136
|
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#if defined(HAVE_CONFIG_H)
#include <config/bitcoin-config.h>
#endif
#include <compat/compat.h>
#include <tinyformat.h>
#include <util/time.h>
#include <util/check.h>
#include <atomic>
#include <chrono>
#include <ctime>
#include <locale>
#include <thread>
#include <sstream>
#include <string>
void UninterruptibleSleep(const std::chrono::microseconds& n) { std::this_thread::sleep_for(n); }
static std::atomic<int64_t> nMockTime(0); //!< For testing
bool ChronoSanityCheck()
{
// std::chrono::system_clock.time_since_epoch and time_t(0) are not guaranteed
// to use the Unix epoch timestamp, prior to C++20, but in practice they almost
// certainly will. Any differing behavior will be assumed to be an error, unless
// certain platforms prove to consistently deviate, at which point we'll cope
// with it by adding offsets.
// Create a new clock from time_t(0) and make sure that it represents 0
// seconds from the system_clock's time_since_epoch. Then convert that back
// to a time_t and verify that it's the same as before.
const time_t time_t_epoch{};
auto clock = std::chrono::system_clock::from_time_t(time_t_epoch);
if (std::chrono::duration_cast<std::chrono::seconds>(clock.time_since_epoch()).count() != 0) {
return false;
}
time_t time_val = std::chrono::system_clock::to_time_t(clock);
if (time_val != time_t_epoch) {
return false;
}
// Check that the above zero time is actually equal to the known unix timestamp.
struct tm epoch;
#ifdef HAVE_GMTIME_R
if (gmtime_r(&time_val, &epoch) == nullptr) {
#else
if (gmtime_s(&epoch, &time_val) != 0) {
#endif
return false;
}
if ((epoch.tm_sec != 0) ||
(epoch.tm_min != 0) ||
(epoch.tm_hour != 0) ||
(epoch.tm_mday != 1) ||
(epoch.tm_mon != 0) ||
(epoch.tm_year != 70)) {
return false;
}
return true;
}
NodeClock::time_point NodeClock::now() noexcept
{
const std::chrono::seconds mocktime{nMockTime.load(std::memory_order_relaxed)};
const auto ret{
mocktime.count() ?
mocktime :
std::chrono::system_clock::now().time_since_epoch()};
assert(ret > 0s);
return time_point{ret};
};
void SetMockTime(int64_t nMockTimeIn)
{
Assert(nMockTimeIn >= 0);
nMockTime.store(nMockTimeIn, std::memory_order_relaxed);
}
void SetMockTime(std::chrono::seconds mock_time_in)
{
nMockTime.store(mock_time_in.count(), std::memory_order_relaxed);
}
std::chrono::seconds GetMockTime()
{
return std::chrono::seconds(nMockTime.load(std::memory_order_relaxed));
}
int64_t GetTime() { return GetTime<std::chrono::seconds>().count(); }
std::string FormatISO8601DateTime(int64_t nTime) {
struct tm ts;
time_t time_val = nTime;
#ifdef HAVE_GMTIME_R
if (gmtime_r(&time_val, &ts) == nullptr) {
#else
if (gmtime_s(&ts, &time_val) != 0) {
#endif
return {};
}
return strprintf("%04i-%02i-%02iT%02i:%02i:%02iZ", ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday, ts.tm_hour, ts.tm_min, ts.tm_sec);
}
std::string FormatISO8601Date(int64_t nTime) {
struct tm ts;
time_t time_val = nTime;
#ifdef HAVE_GMTIME_R
if (gmtime_r(&time_val, &ts) == nullptr) {
#else
if (gmtime_s(&ts, &time_val) != 0) {
#endif
return {};
}
return strprintf("%04i-%02i-%02i", ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday);
}
struct timeval MillisToTimeval(int64_t nTimeout)
{
struct timeval timeout;
timeout.tv_sec = nTimeout / 1000;
timeout.tv_usec = (nTimeout % 1000) * 1000;
return timeout;
}
struct timeval MillisToTimeval(std::chrono::milliseconds ms)
{
return MillisToTimeval(count_milliseconds(ms));
}
|
