ACE/ace/Countdown_Time_T.cpp

   1 #ifndef ACE_COUNTDOWN_TIME_T_CPP
   2 #define ACE_COUNTDOWN_TIME_T_CPP
   3
   4 #include "ace/Countdown_Time_T.h"
   5
   6 #if !defined (__ACE_INLINE__)
   7 #include "ace/Countdown_Time_T.inl"
   8 #endif /* __ACE_INLINE__ */
   9
  10 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  11
  12 template <typename TIME_POLICY> ACE_INLINE
  13 ACE_Countdown_Time_T<TIME_POLICY>::ACE_Countdown_Time_T (ACE_Time_Value *max_wait_time,
  14                                                          TIME_POLICY const & time_policy)
  15   : time_policy_ (time_policy),
  16     max_wait_time_ (max_wait_time),
  17     max_wait_value_ (ACE_Time_Value::zero),
  18     stopped_ (false)
  19 {
  20   this->start ();
  21 }
  22
  23 template <typename TIME_POLICY> ACE_INLINE
  24 ACE_Countdown_Time_T<TIME_POLICY>::~ACE_Countdown_Time_T ()
  25 {
  26   this->stop ();
  27 }
  28
  29 template <typename TIME_POLICY> ACE_INLINE void
  30 ACE_Countdown_Time_T<TIME_POLICY>::start ()
  31 {
  32   if (this->max_wait_time_ != 0)
  33     {
  34       this->max_wait_value_ = *this->max_wait_time_;
  35       this->start_time_ = this->time_policy_ ();
  36       this->stopped_ = false;
  37     }
  38 }
  39
  40 template <typename TIME_POLICY> ACE_INLINE void
  41 ACE_Countdown_Time_T<TIME_POLICY>::stop ()
  42 {
  43   if (this->max_wait_time_ != 0 && !this->stopped_)
  44     {
  45       ACE_Time_Value const elapsed_time =
  46           this->time_policy_ () - this->start_time_;
  47
  48       if (elapsed_time >= ACE_Time_Value::zero &&
  49           this->max_wait_value_ > elapsed_time)
  50         {
  51           *this->max_wait_time_ = this->max_wait_value_ - elapsed_time;
  52         }
  53       else
  54         {
  55           // Used all of timeout.
  56           *this->max_wait_time_ = ACE_Time_Value::zero;
  57           // errno = ETIME;
  58         }
  59       this->stopped_ = true;
  60     }
  61 }
  62
  63 ACE_END_VERSIONED_NAMESPACE_DECL
  64
  65 #endif /* ACE_COUNTDOWN_TIME_T_CPP */