src/timer/timer_window.cpp

   1 /*
   2  * This file is part of OpenTTD.
   3  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   4  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   5  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   6  */
   7
   8 /**
   9  * @file timer_window.cpp
  10  * This file implements the timer logic for the Window system.
  11  */
  12
  13 #include "../stdafx.h"
  14 #include "timer.h"
  15 #include "timer_window.h"
  16
  17 #include "../safeguards.h"
  18
  19 template<>
  20 void IntervalTimer<TimerWindow>::Elapsed(TimerWindow::TElapsed delta)
  21 {
  22         if (this->period == std::chrono::milliseconds::zero()) return;
  23
  24         this->storage.elapsed += delta;
  25
  26         uint count = 0;
  27         while (this->storage.elapsed >= this->period) {
  28                 this->storage.elapsed -= this->period;
  29                 count++;
  30         }
  31
  32         if (count > 0) {
  33                 this->callback(count);
  34         }
  35 }
  36
  37 template<>
  38 void TimeoutTimer<TimerWindow>::Elapsed(TimerWindow::TElapsed delta)
  39 {
  40         if (this->fired) return;
  41         if (this->period == std::chrono::milliseconds::zero()) return;
  42
  43         this->storage.elapsed += delta;
  44
  45         if (this->storage.elapsed >= this->period) {
  46                 this->callback();
  47                 this->fired = true;
  48         }
  49 }
  50
  51 template<>
  52 bool TimerManager<TimerWindow>::Elapsed(TimerWindow::TElapsed delta)
  53 {
  54         /* Make a temporary copy of the timers, as a timer's callback might add/remove other timers. */
  55         auto timers = TimerManager<TimerWindow>::GetTimers();
  56
  57         for (auto timer : timers) {
  58                 timer->Elapsed(delta);
  59         }
  60
  61         return true;
  62 }
  63
  64 #ifdef WITH_ASSERT
  65 template<>
  66 void TimerManager<TimerWindow>::Validate(TimerWindow::TPeriod)
  67 {
  68 }
  69 #endif /* WITH_ASSERT */