ceph/src/boost/libs/chrono/stopwatches/include/boost/chrono/stopwatches/collectors/laps_sequence_container.hpp

   1 //  boost/chrono/stopwatches/collectors/laps_sequence_container.hpp
   2 //  Copyright 2011 Vicente J. Botet Escriba
   3 //  Distributed under the Boost Software License, Version 1.0.
   4 //  (See accompanying file LICENSE_1_0.txt or
   5 //   copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //  See http://www.boost.org/libs/chrono/stopwatches for documentation.
   7
   8 #ifndef BOOST_CHRONO_STOPWATCHES_MEMORIES_LAPS_CONTAINER_HPP
   9 #define BOOST_CHRONO_STOPWATCHES_MEMORIES_LAPS_CONTAINER_HPP
  10
  11 #include <list>
  12
  13 namespace boost
  14 {
  15   namespace chrono
  16   {
  17
  18     template<
  19       typename Duration,
  20       typename SequenceContainer = std::list<Duration>
  21     >
  22     struct laps_sequence_container
  23     {
  24       typedef Duration duration;
  25       typedef typename duration::rep rep;
  26       typedef SequenceContainer storage_type;
  27       typedef typename SequenceContainer::iterator iterator;
  28       typedef typename SequenceContainer::const_iterator const_iterator;
  29       storage_type cont_;
  30
  31       void store(duration const& d)
  32       {
  33         cont_.push_front(d);
  34       }
  35
  36       void reset()
  37       {
  38         cont_.clear();
  39       }
  40
  41       storage_type const& container() const  { return cont_; }
  42
  43       duration last() const  {
  44         if (cont_.empty())
  45           return duration::zero();
  46         else
  47           return *cont_.begin();
  48       }
  49
  50       duration elapsed() const  {
  51         duration elapsed_ = duration::zero();
  52         for (const_iterator it = cont_.begin(); it !=cont_.end(); ++it) elapsed_ += *it;
  53         return elapsed_;
  54       }
  55
  56     };
  57
  58
  59   } // namespace chrono
  60 } // namespace boost
  61
  62
  63 #endif
  64
  65