1 files changed, 96 insertions, 0 deletions
diff --git a/src/shared/Timer.h b/src/shared/Timer.h
new file mode 100644
index 00000000000..f24d6f02ce0
--- /dev/null
+++ b/src/shared/Timer.h
@@ -0,0 +1,96 @@
+/* 
+ * Copyright (C) 2005-2008 MaNGOS <http://www.mangosproject.org/>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef MANGOS_TIMER_H
+#define MANGOS_TIMER_H
+
+#include "Platform/CompilerDefs.h"
+
+#if PLATFORM == PLATFORM_WINDOWS
+#   include <windows.h>
+#   include <mmsystem.h>
+#   include <time.h>
+#else
+# if defined(__APPLE_CC__)
+#   include <time.h>
+# endif
+#   include <sys/time.h>
+#   include <sys/timeb.h>
+#endif
+
+#if PLATFORM == PLATFORM_WINDOWS
+inline uint32 getMSTime() { return GetTickCount(); }
+#else
+inline uint32 getMSTime()
+{
+    struct timeval tv;
+    struct timezone tz;
+    gettimeofday( &tv, &tz );
+    return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+#endif
+
+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;
+}
+
+class 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
+{
+    TimeTracker(time_t expiry) : i_expiryTime(expiry) {}
+    void Update(time_t diff) { i_expiryTime -= diff; }
+    bool Passed(void) const { return (i_expiryTime <= 0); }
+    void Reset(time_t interval) { i_expiryTime = interval; }
+    time_t GetExpiry(void) const { return i_expiryTime; }
+    time_t i_expiryTime;
+};
+
+struct TimeTrackerSmall
+{
+    TimeTrackerSmall(int32 expiry) : i_expiryTime(expiry) {}
+    void Update(int32 diff) { i_expiryTime -= diff; }
+    bool Passed(void) const { return (i_expiryTime <= 0); }
+    void Reset(int32 interval) { i_expiryTime = interval; }
+    int32 GetExpiry(void) const { return i_expiryTime; }
+    int32 i_expiryTime;
+};
+
+#endif