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3rdparty/boost_1_81_0/boost/thread/thread_time.hpp 1.55 KB
0b6a182c   Hu Chunming   添加无鉴权注册和注销
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  #ifndef BOOST_THREAD_TIME_HPP
  #define BOOST_THREAD_TIME_HPP
  //  (C) Copyright 2007 Anthony Williams 
  //
  //  Distributed under the Boost Software License, Version 1.0. (See
  //  accompanying file LICENSE_1_0.txt or copy at
  //  http://www.boost.org/LICENSE_1_0.txt)
  
  #include <boost/date_time/time_clock.hpp>
  #include <boost/date_time/microsec_time_clock.hpp>
  #include <boost/date_time/posix_time/posix_time_types.hpp>
  
  #include <boost/config/abi_prefix.hpp>
  
  namespace boost
  {
      typedef boost::posix_time::ptime system_time;
      
      inline system_time get_system_time()
      {
  #if defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK)
          return boost::date_time::microsec_clock<system_time>::universal_time();
  #else // defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK)
          return boost::date_time::second_clock<system_time>::universal_time();
  #endif // defined(BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK)
      }
  
      namespace detail
      {
          inline system_time get_system_time_sentinel()
          {
              return system_time(boost::posix_time::pos_infin);
          }
  
          inline unsigned long get_milliseconds_until(system_time const& target_time)
          {
              if(target_time.is_pos_infinity())
              {
                  return ~(unsigned long)0;
              }
              system_time const now=get_system_time();
              if(target_time<=now)
              {
                  return 0;
              }
              return static_cast<unsigned long>((target_time-now).total_milliseconds()+1);
          }
  
      }
      
  }
  
  #include <boost/config/abi_suffix.hpp>
  
  #endif