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/*
* Copyright (C) 2008-2014 TrinityCore <http://www.trinitycore.org/>
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*
* This program 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; either version 2 of the License, or (at your
* option) any later version.
*
* This program 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. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TRINITY_TIMER_H
#define TRINITY_TIMER_H
#include <chrono>
using namespace std::chrono;
inline uint32 getMSTime()
{
static const system_clock::time_point ApplicationStartTime = system_clock::now();
return uint32(duration_cast<milliseconds>(system_clock::now() - ApplicationStartTime).count());
}
inline uint32 getMSTimeDiff(uint32 oldMSTime, uint32 newMSTime)
{
// getMSTime() have limited data range and this is case when it overflow in this tick
if (oldMSTime > newMSTime)
return (0xFFFFFFFF - oldMSTime) + newMSTime;
else
return newMSTime - oldMSTime;
}
inline uint32 GetMSTimeDiffToNow(uint32 oldMSTime)
{
return getMSTimeDiff(oldMSTime, getMSTime());
}
struct IntervalTimer
{
public:
IntervalTimer()
: _interval(0), _current(0)
{
}
void Update(time_t diff)
{
_current += diff;
if (_current < 0)
_current = 0;
}
bool Passed()
{
return _current >= _interval;
}
void Reset()
{
if (_current >= _interval)
_current %= _interval;
}
void SetCurrent(time_t current)
{
_current = current;
}
void SetInterval(time_t interval)
{
_interval = interval;
}
time_t GetInterval() const
{
return _interval;
}
time_t GetCurrent() const
{
return _current;
}
private:
time_t _interval;
time_t _current;
};
struct TimeTracker
{
public:
TimeTracker(time_t expiry)
: i_expiryTime(expiry)
{
}
void Update(time_t diff)
{
i_expiryTime -= diff;
}
bool Passed() const
{
return i_expiryTime <= 0;
}
void Reset(time_t interval)
{
i_expiryTime = interval;
}
time_t GetExpiry() const
{
return i_expiryTime;
}
private:
time_t i_expiryTime;
};
struct TimeTrackerSmall
{
public:
TimeTrackerSmall(uint32 expiry = 0)
: i_expiryTime(expiry)
{
}
void Update(int32 diff)
{
i_expiryTime -= diff;
}
bool Passed() const
{
return i_expiryTime <= 0;
}
void Reset(uint32 interval)
{
i_expiryTime = interval;
}
int32 GetExpiry() const
{
return i_expiryTime;
}
private:
int32 i_expiryTime;
};
struct PeriodicTimer
{
public:
PeriodicTimer(int32 period, int32 start_time)
: i_period(period), i_expireTime(start_time)
{
}
bool Update(const uint32 diff)
{
if ((i_expireTime -= diff) > 0)
return false;
i_expireTime += i_period > int32(diff) ? i_period : diff;
return true;
}
void SetPeriodic(int32 period, int32 start_time)
{
i_expireTime = start_time;
i_period = period;
}
// Tracker interface
void TUpdate(int32 diff) { i_expireTime -= diff; }
bool TPassed() const { return i_expireTime <= 0; }
void TReset(int32 diff, int32 period) { i_expireTime += period > diff ? period : diff; }
private:
int32 i_period;
int32 i_expireTime;
};
#endif
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