src/shared/Threading.h

   1 /*
   2  * Copyright (C) 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 THREADING_H
  20 #define THREADING_H
  21
  22 #include <ace/Thread.h>
  23 #include <ace/TSS_T.h>
  24 #include <assert.h>
  25 #include "Errors.h"
  26
  27 namespace ACE_Based
  28 {
  29
  30     class Runnable
  31     {
  32         public:
  33             virtual ~Runnable() {}
  34             virtual void run() = 0;
  35     };
  36
  37     enum Priority
  38     {
  39         Idle,
  40         Lowest,
  41         Low,
  42         Normal,
  43         High,
  44         Highest,
  45         Realtime,
  46     };
  47
  48 #define MAXPRIORITYNUM (Realtime + 1)
  49
  50     class ThreadPriority
  51     {
  52         public:
  53             ThreadPriority();
  54             int getPriority(Priority p) const;
  55
  56         private:
  57             int m_priority[MAXPRIORITYNUM];
  58     };
  59
  60     class Thread
  61     {
  62         public:
  63             Thread();
  64             Thread(Runnable& instance);
  65             ~Thread();
  66
  67             bool start();
  68             bool wait();
  69             void destroy();
  70
  71             void suspend();
  72             void resume();
  73
  74             void setPriority(Priority type);
  75
  76             static void Sleep(unsigned long msecs);
  77             static ACE_thread_t currentId();
  78             static ACE_hthread_t currentHandle();
  79             static Thread * current();
  80
  81         private:
  82             Thread(const Thread&);
  83             Thread& operator=(const Thread&);
  84
  85             static ACE_THR_FUNC_RETURN ThreadTask(void * param);
  86
  87             ACE_thread_t m_iThreadId;
  88             ACE_hthread_t m_hThreadHandle;
  89             Runnable * m_task;
  90
  91             typedef ACE_TSS<Thread> ThreadStorage;
  92             //global object - container for Thread class representation of every thread
  93             static ThreadStorage m_ThreadStorage;
  94             //use this object to determine current OS thread priority values mapped to enum Priority{}
  95             static ThreadPriority m_TpEnum;
  96     };
  97
  98 }
  99 #endif