1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2020 The Bitcoin Core developers
3 // Distributed under the MIT software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
5
6 #if defined(HAVE_CONFIG_H)
7 #include <config/bitcoin-config.h>
8 #endif
9
10 #include <util/time.h>
11
12 #include <atomic>
13 #include <boost/date_time/posix_time/posix_time.hpp>
14 #include <ctime>
15 #include <thread>
16
17 #include <tinyformat.h>
18
UninterruptibleSleep(const std::chrono::microseconds & n)19 void UninterruptibleSleep(const std::chrono::microseconds& n) { std::this_thread::sleep_for(n); }
20
21 static std::atomic<int64_t> nMockTime(0); //!< For unit testing
22
GetTime()23 int64_t GetTime()
24 {
25 int64_t mocktime = nMockTime.load(std::memory_order_relaxed);
26 if (mocktime) return mocktime;
27
28 time_t now = time(nullptr);
29 assert(now > 0);
30 return now;
31 }
32
33 template <typename T>
GetTime()34 T GetTime()
35 {
36 const std::chrono::seconds mocktime{nMockTime.load(std::memory_order_relaxed)};
37
38 return std::chrono::duration_cast<T>(
39 mocktime.count() ?
40 mocktime :
41 std::chrono::microseconds{GetTimeMicros()});
42 }
43 template std::chrono::seconds GetTime();
44 template std::chrono::milliseconds GetTime();
45 template std::chrono::microseconds GetTime();
46
SetMockTime(int64_t nMockTimeIn)47 void SetMockTime(int64_t nMockTimeIn)
48 {
49 nMockTime.store(nMockTimeIn, std::memory_order_relaxed);
50 }
51
GetMockTime()52 int64_t GetMockTime()
53 {
54 return nMockTime.load(std::memory_order_relaxed);
55 }
56
GetTimeMillis()57 int64_t GetTimeMillis()
58 {
59 int64_t now = (boost::posix_time::microsec_clock::universal_time() -
60 boost::posix_time::ptime(boost::gregorian::date(1970,1,1))).total_milliseconds();
61 assert(now > 0);
62 return now;
63 }
64
GetTimeMicros()65 int64_t GetTimeMicros()
66 {
67 int64_t now = (boost::posix_time::microsec_clock::universal_time() -
68 boost::posix_time::ptime(boost::gregorian::date(1970,1,1))).total_microseconds();
69 assert(now > 0);
70 return now;
71 }
72
GetSystemTimeInSeconds()73 int64_t GetSystemTimeInSeconds()
74 {
75 return GetTimeMicros()/1000000;
76 }
77
FormatISO8601DateTime(int64_t nTime)78 std::string FormatISO8601DateTime(int64_t nTime) {
79 struct tm ts;
80 time_t time_val = nTime;
81 #ifdef HAVE_GMTIME_R
82 if (gmtime_r(&time_val, &ts) == nullptr) {
83 #else
84 if (gmtime_s(&ts, &time_val) != 0) {
85 #endif
86 return {};
87 }
88 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);
89 }
90
91 std::string FormatISO8601Date(int64_t nTime) {
92 struct tm ts;
93 time_t time_val = nTime;
94 #ifdef HAVE_GMTIME_R
95 if (gmtime_r(&time_val, &ts) == nullptr) {
96 #else
97 if (gmtime_s(&ts, &time_val) != 0) {
98 #endif
99 return {};
100 }
101 return strprintf("%04i-%02i-%02i", ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday);
102 }
103
104 int64_t ParseISO8601DateTime(const std::string& str)
105 {
106 static const boost::posix_time::ptime epoch = boost::posix_time::from_time_t(0);
107 static const std::locale loc(std::locale::classic(),
108 new boost::posix_time::time_input_facet("%Y-%m-%dT%H:%M:%SZ"));
109 std::istringstream iss(str);
110 iss.imbue(loc);
111 boost::posix_time::ptime ptime(boost::date_time::not_a_date_time);
112 iss >> ptime;
113 if (ptime.is_not_a_date_time() || epoch > ptime)
114 return 0;
115 return (ptime - epoch).total_seconds();
116 }
117