src/shared/Timer.h

   1 /*
   2  * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #ifndef MANGOS_TIMER_H
  20 #define MANGOS_TIMER_H
  21
  22 #include "Platform/CompilerDefs.h"
  23
  24 #if PLATFORM == PLATFORM_WINDOWS
  25 #   include <ace/config-all.h>
  26 #   include <mmsystem.h>
  27 #   include <time.h>
  28 #else
  29 # if defined(__APPLE_CC__)
  30 #   include <time.h>
  31 # endif
  32 #   include <sys/time.h>
  33 #   include <sys/timeb.h>
  34 #endif
  35
  36 #if PLATFORM == PLATFORM_WINDOWS
  37 inline uint32 getMSTime() { return GetTickCount(); }
  38 #else
  39 inline uint32 getMSTime()
  40 {
  41     struct timeval tv;
  42     struct timezone tz;
  43     gettimeofday( &tv, &tz );
  44     return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
  45 }
  46 #endif
  47
  48 inline uint32 getMSTimeDiff(uint32 oldMSTime, uint32 newMSTime)
  49 {
  50     // getMSTime() have limited data range and this is case when it overflow in this tick
  51     if (oldMSTime > newMSTime)
  52         return (0xFFFFFFFF - oldMSTime) + newMSTime;
  53     else
  54         return newMSTime - oldMSTime;
  55 }
  56
  57 class IntervalTimer
  58 {
  59     public:
  60         IntervalTimer() : _interval(0), _current(0) {}
  61
  62         void Update(time_t diff) { _current += diff; if(_current<0) _current=0;}
  63         bool Passed() { return _current >= _interval; }
  64         void Reset() { if(_current >= _interval) _current -= _interval;  }
  65
  66         void SetCurrent(time_t current) { _current = current; }
  67         void SetInterval(time_t interval) { _interval = interval; }
  68         time_t GetInterval() const { return _interval; }
  69         time_t GetCurrent() const { return _current; }
  70
  71     private:
  72         time_t _interval;
  73         time_t _current;
  74 };
  75
  76 struct TimeTracker
  77 {
  78     TimeTracker(time_t expiry) : i_expiryTime(expiry) {}
  79     void Update(time_t diff) { i_expiryTime -= diff; }
  80     bool Passed(void) const { return (i_expiryTime <= 0); }
  81     void Reset(time_t interval) { i_expiryTime = interval; }
  82     time_t GetExpiry(void) const { return i_expiryTime; }
  83     time_t i_expiryTime;
  84 };
  85
  86 struct TimeTrackerSmall
  87 {
  88     TimeTrackerSmall(int32 expiry) : i_expiryTime(expiry) {}
  89     void Update(int32 diff) { i_expiryTime -= diff; }
  90     bool Passed(void) const { return (i_expiryTime <= 0); }
  91     void Reset(int32 interval) { i_expiryTime = interval; }
  92     int32 GetExpiry(void) const { return i_expiryTime; }
  93     int32 i_expiryTime;
  94 };
  95
  96 #endif