Update boost to 1.71 and add asio

boost/date_time/time_clock.hpp

@@ -0,0 +1,83 @@
+#ifndef DATE_TIME_TIME_CLOCK_HPP___
+#define DATE_TIME_TIME_CLOCK_HPP___
+
+/* Copyright (c) 2002,2003,2005 CrystalClear Software, Inc.
+ * Use, modification and distribution is subject to the
+ * Boost Software License, Version 1.0. (See accompanying
+ * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+ * Author: Jeff Garland, Bart Garst
+ * $Date$
+ */
+
+/*! @file time_clock.hpp
+  This file contains the interface for clock devices.
+*/
+
+#include "boost/date_time/c_time.hpp"
+#include "boost/shared_ptr.hpp"
+
+namespace boost {
+namespace date_time {
+
+
+  //! A clock providing time level services based on C time_t capabilities
+  /*! This clock provides resolution to the 1 second level
+   */
+  template<class time_type>
+  class second_clock
+  {
+  public:
+    typedef typename time_type::date_type date_type;
+    typedef typename time_type::time_duration_type time_duration_type;
+
+    static time_type local_time()
+    {
+      ::std::time_t t;
+      ::std::time(&t);
+      ::std::tm curr, *curr_ptr;
+      //curr_ptr = ::std::localtime(&t);
+      curr_ptr = c_time::localtime(&t, &curr);
+      return create_time(curr_ptr);
+    }
+
+
+    //! Get the current day in universal date as a ymd_type
+    static time_type universal_time()
+    {
+
+      ::std::time_t t;
+      ::std::time(&t);
+      ::std::tm curr, *curr_ptr;
+      //curr_ptr = ::std::gmtime(&t);
+      curr_ptr = c_time::gmtime(&t, &curr);
+      return create_time(curr_ptr);
+    }
+
+    template<class time_zone_type>
+    static time_type local_time(boost::shared_ptr<time_zone_type> tz_ptr)
+    {
+      typedef typename time_type::utc_time_type utc_time_type;
+      utc_time_type utc_time = second_clock<utc_time_type>::universal_time();
+      return time_type(utc_time, tz_ptr);
+    }
+
+
+  private:
+    static time_type create_time(::std::tm* current)
+    {
+      date_type d(static_cast<unsigned short>(current->tm_year + 1900),
+                  static_cast<unsigned short>(current->tm_mon + 1),
+                  static_cast<unsigned short>(current->tm_mday));
+      time_duration_type td(current->tm_hour,
+                            current->tm_min,
+                            current->tm_sec);
+      return time_type(d,td);
+    }
+
+  };
+
+
+} } //namespace date_time
+
+
+#endif