text: //
  // Thread_WIN32.h
  //
  // $Id: //poco/1.4/Foundation/include/Poco/Thread_WIN32.h#1 $
  //
  // Library: Foundation
  // Package: Threading
  // Module:  Thread
  //
  // Definition of the ThreadImpl class for WIN32.
  //
  // Copyright (c) 2004-2009, Applied Informatics Software Engineering GmbH.
  // and Contributors.
  //
  // Permission is hereby granted, free of charge, to any person or organization
  // obtaining a copy of the software and accompanying documentation covered by
  // this license (the "Software") to use, reproduce, display, distribute,
  // execute, and transmit the Software, and to prepare derivative works of the
  // Software, and to permit third-parties to whom the Software is furnished to
  // do so, all subject to the following:
  // 
  // The copyright notices in the Software and this entire statement, including
  // the above license grant, this restriction and the following disclaimer,
  // must be included in all copies of the Software, in whole or in part, and
  // all derivative works of the Software, unless such copies or derivative
  // works are solely in the form of machine-executable object code generated by
  // a source language processor.
  // 
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
  // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
  // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
  // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  // DEALINGS IN THE SOFTWARE.
  //
  
  
  #ifndef Foundation_Thread_WIN32_INCLUDED
  #define Foundation_Thread_WIN32_INCLUDED
  
  
  #include "Poco/Foundation.h"
  #include "Poco/Runnable.h"
  #include "Poco/UnWindows.h"
  #include <thread>
  #include <chrono>
  
  namespace Poco {
  
  
  class Foundation_API ThreadImpl
  {
  public:	
  	typedef DWORD TIDImpl;
  	typedef void (*Callable)(void*);
  
  #if defined(_DLL)
  	typedef DWORD (WINAPI *Entry)(LPVOID);
  #else
  	typedef unsigned (__stdcall *Entry)(void*);
  #endif
  
  	struct CallbackData
  	{
  		CallbackData(): callback(0), pData(0)
  		{
  		}
  
  		Callable  callback;
  		void*     pData; 
  	};
  
  	enum Priority
  	{
  		PRIO_LOWEST_IMPL  = THREAD_PRIORITY_LOWEST,
  		PRIO_LOW_IMPL     = THREAD_PRIORITY_BELOW_NORMAL,
  		PRIO_NORMAL_IMPL  = THREAD_PRIORITY_NORMAL,
  		PRIO_HIGH_IMPL    = THREAD_PRIORITY_ABOVE_NORMAL,
  		PRIO_HIGHEST_IMPL = THREAD_PRIORITY_HIGHEST
  	};
  
  	enum Policy
  	{
  		POLICY_DEFAULT_IMPL = 0
  	};
  
  	ThreadImpl();				
  	~ThreadImpl();
  
  	TIDImpl tidImpl() const;
  	void setPriorityImpl(int prio);
  	int getPriorityImpl() const;
  	void setOSPriorityImpl(int prio, int policy = 0);
  	int getOSPriorityImpl() const;
  	static int getMinOSPriorityImpl(int policy);
  	static int getMaxOSPriorityImpl(int policy);
  	void setStackSizeImpl(int size);
  	int getStackSizeImpl() const;
  	void startImpl(Runnable& target);
  	void startImpl(Callable target, void* pData = 0);
  
  	void joinImpl();
  	bool joinImpl(long milliseconds);
  	bool isRunningImpl() const;
  	static void sleepImpl(long milliseconds);
  	static void yieldImpl();
  	static ThreadImpl* currentImpl();
  	static TIDImpl currentTidImpl();
      
  protected:
  #if defined(_DLL)
  	static DWORD WINAPI runnableEntry(LPVOID pThread);
  #else
  	static unsigned __stdcall runnableEntry(void* pThread);
  #endif
  
  #if defined(_DLL)
  	static DWORD WINAPI callableEntry(LPVOID pThread);
  #else
  	static unsigned __stdcall callableEntry(void* pThread);
  #endif
  
  	void createImpl(Entry ent, void* pData);
  	void threadCleanup();
  
  private:
  	class CurrentThreadHolder
  	{
  	public:
  		CurrentThreadHolder(): _slot(nullptr)
  		{
  		}
  		~CurrentThreadHolder()
  		{
  		}
  		ThreadImpl* get() const
  		{
  			return _slot;
  		}
  		void set(ThreadImpl* pThread)
  		{
  			_slot = pThread;
  		}
  	
  	private:
  		ThreadImpl* _slot;
  	};
  
  	Runnable*    _pRunnableTarget;
  	CallbackData _callbackTarget;
  	std::thread  _thread;
  	DWORD        _threadId;
  	int          _prio;
  	int          _stackSize;
  
  	static /*__declspec(thread) */CurrentThreadHolder _currentThreadHolder;
  };
  
  
  //
  // inlines
  //
  inline int ThreadImpl::getPriorityImpl() const
  {
  	return _prio;
  }
  
  
  inline int ThreadImpl::getOSPriorityImpl() const
  {
  	return _prio;
  }
  
  
  inline int ThreadImpl::getMinOSPriorityImpl(int /* policy */)
  {
  	return PRIO_LOWEST_IMPL;
  }
  
  
  inline int ThreadImpl::getMaxOSPriorityImpl(int /* policy */)
  {
  	return PRIO_HIGHEST_IMPL;
  }
  
  
  inline void ThreadImpl::sleepImpl(long milliseconds)
  {
  	std::this_thread::sleep_for(std::chrono::milliseconds(milliseconds));
  }
  
  
  inline void ThreadImpl::yieldImpl()
  {
  	std::this_thread::yield();
  }
  
  
  inline void ThreadImpl::setStackSizeImpl(int size)
  {
  	_stackSize = size;
  }
  
  
  inline int ThreadImpl::getStackSizeImpl() const
  {
  	return _stackSize;
  }
  
  
  inline ThreadImpl::TIDImpl ThreadImpl::tidImpl() const
  {
  	return _threadId;
  }
  
  
  } // namespace Poco
  
  
  #endif // Foundation_Thread_WIN32_INCLUDED
  