1 files changed, 201 insertions, 0 deletions
diff --git a/src/server/shared/Utilities/Timer.h b/src/server/shared/Utilities/Timer.h
new file mode 100644
index 0000000000..10db3f9948
--- /dev/null
+++ b/src/server/shared/Utilities/Timer.h
@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 
+ * Copyright (C) 
+ *
+ * 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 "ace/OS_NS_sys_time.h"
+#include "Common.h"
+
+inline uint32 getMSTime()
+{
+    static const ACE_Time_Value ApplicationStartTime = ACE_OS::gettimeofday();
+    return (ACE_OS::gettimeofday() - ApplicationStartTime).msec();
+}
+
+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