src/utiltime.cpp

   1 // Copyright (c) 2009-2010 Satoshi Nakamoto
   2 // Copyright (c) 2009-2016 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 "utiltime.h"
  11
  12 #include <atomic>
  13
  14 #include <boost/date_time/posix_time/posix_time.hpp>
  15 #include <boost/thread.hpp>
  16
  17 static std::atomic<int64_t> nMockTime(0); //!< For unit testing
  18
  19 int64_t GetTime()
  20 {
  21     int64_t mocktime = nMockTime.load(std::memory_order_relaxed);
  22     if (mocktime) return mocktime;
  23
  24     time_t now = time(NULL);
  25     assert(now > 0);
  26     return now;
  27 }
  28
  29 void SetMockTime(int64_t nMockTimeIn)
  30 {
  31     nMockTime.store(nMockTimeIn, std::memory_order_relaxed);
  32 }
  33
  34 int64_t GetTimeMillis()
  35 {
  36     int64_t now = (boost::posix_time::microsec_clock::universal_time() -
  37                    boost::posix_time::ptime(boost::gregorian::date(1970,1,1))).total_milliseconds();
  38     assert(now > 0);
  39     return now;
  40 }
  41
  42 int64_t GetTimeMicros()
  43 {
  44     int64_t now = (boost::posix_time::microsec_clock::universal_time() -
  45                    boost::posix_time::ptime(boost::gregorian::date(1970,1,1))).total_microseconds();
  46     assert(now > 0);
  47     return now;
  48 }
  49
  50 int64_t GetSystemTimeInSeconds()
  51 {
  52     return GetTimeMicros()/1000000;
  53 }
  54
  55 /** Return a time useful for the debug log */
  56 int64_t GetLogTimeMicros()
  57 {
  58     int64_t mocktime = nMockTime.load(std::memory_order_relaxed);
  59     if (mocktime) return mocktime*1000000;
  60
  61     return GetTimeMicros();
  62 }
  63
  64 void MilliSleep(int64_t n)
  65 {
  66
  67 /**
  68  * Boost's sleep_for was uninterruptible when backed by nanosleep from 1.50
  69  * until fixed in 1.52. Use the deprecated sleep method for the broken case.
  70  * See: https://svn.boost.org/trac/boost/ticket/7238
  71  */
  72 #if defined(HAVE_WORKING_BOOST_SLEEP_FOR)
  73     boost::this_thread::sleep_for(boost::chrono::milliseconds(n));
  74 #elif defined(HAVE_WORKING_BOOST_SLEEP)
  75     boost::this_thread::sleep(boost::posix_time::milliseconds(n));
  76 #else
  77 //should never get here
  78 #error missing boost sleep implementation
  79 #endif
  80 }
  81
  82 std::string DateTimeStrFormat(const char* pszFormat, int64_t nTime)
  83 {
  84     static std::locale classic(std::locale::classic());
  85     // std::locale takes ownership of the pointer
  86     std::locale loc(classic, new boost::posix_time::time_facet(pszFormat));
  87     std::stringstream ss;
  88     ss.imbue(loc);
  89     ss << boost::posix_time::from_time_t(nTime);
  90     return ss.str();
  91 }