aboutsummaryrefslogtreecommitdiff
path: root/src/util/time.cpp
blob: f33966f1494d96cd753b83728d9a547c5566ec71 (plain)
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
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2019 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 <util/time.h>

#include <atomic>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/thread.hpp>
#include <ctime>
#include <tinyformat.h>

static std::atomic<int64_t> nMockTime(0); //!< For unit testing

int64_t GetTime()
{
    int64_t mocktime = nMockTime.load(std::memory_order_relaxed);
    if (mocktime) return mocktime;

    time_t now = time(nullptr);
    assert(now > 0);
    return now;
}

template <typename T>
T GetTime()
{
    const std::chrono::seconds mocktime{nMockTime.load(std::memory_order_relaxed)};

    return std::chrono::duration_cast<T>(
        mocktime.count() ?
            mocktime :
            std::chrono::microseconds{GetTimeMicros()});
}
template std::chrono::seconds GetTime();
template std::chrono::milliseconds GetTime();
template std::chrono::microseconds GetTime();

void SetMockTime(int64_t nMockTimeIn)
{
    nMockTime.store(nMockTimeIn, std::memory_order_relaxed);
}

int64_t GetMockTime()
{
    return nMockTime.load(std::memory_order_relaxed);
}

int64_t GetTimeMillis()
{
    int64_t now = (boost::posix_time::microsec_clock::universal_time() -
                   boost::posix_time::ptime(boost::gregorian::date(1970,1,1))).total_milliseconds();
    assert(now > 0);
    return now;
}

int64_t GetTimeMicros()
{
    int64_t now = (boost::posix_time::microsec_clock::universal_time() -
                   boost::posix_time::ptime(boost::gregorian::date(1970,1,1))).total_microseconds();
    assert(now > 0);
    return now;
}

int64_t GetSystemTimeInSeconds()
{
    return GetTimeMicros()/1000000;
}

void MilliSleep(int64_t n)
{

/**
 * Boost's sleep_for was uninterruptible when backed by nanosleep from 1.50
 * until fixed in 1.52. Use the deprecated sleep method for the broken case.
 * See: https://svn.boost.org/trac/boost/ticket/7238
 */
#if defined(HAVE_WORKING_BOOST_SLEEP_FOR)
    boost::this_thread::sleep_for(boost::chrono::milliseconds(n));
#elif defined(HAVE_WORKING_BOOST_SLEEP)
    boost::this_thread::sleep(boost::posix_time::milliseconds(n));
#else
//should never get here
#error missing boost sleep implementation
#endif
}

std::string FormatISO8601DateTime(int64_t nTime) {
    struct tm ts;
    time_t time_val = nTime;
#ifdef _MSC_VER
    if (gmtime_s(&ts, &time_val) != 0) {
#else
    if (gmtime_r(&time_val, &ts) == nullptr) {
#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 _MSC_VER
    if (gmtime_s(&ts, &time_val) != 0) {
#else
    if (gmtime_r(&time_val, &ts) == nullptr) {
#endif
        return {};
    }
    return strprintf("%04i-%02i-%02i", ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday);
}

int64_t ParseISO8601DateTime(const std::string& str)
{
    static const boost::posix_time::ptime epoch = boost::posix_time::from_time_t(0);
    static const std::locale loc(std::locale::classic(),
        new boost::posix_time::time_input_facet("%Y-%m-%dT%H:%M:%SZ"));
    std::istringstream iss(str);
    iss.imbue(loc);
    boost::posix_time::ptime ptime(boost::date_time::not_a_date_time);
    iss >> ptime;
    if (ptime.is_not_a_date_time() || epoch > ptime)
        return 0;
    return (ptime - epoch).total_seconds();
}