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//
// Thread_WIN32.h
//
// Library: Foundation
// Package: Threading
// Module: Thread
//
// Definition of the ThreadImpl class for WIN32.
//
// Copyright (c) 2004-2009, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_Thread_WIN32_INCLUDED
#define Foundation_Thread_WIN32_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/Runnable.h"
#include "Poco/SharedPtr.h"
#include "Poco/UnWindows.h"
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
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(SharedPtr<Runnable> pTarget);
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
void createImpl(Entry ent, void* pData);
void threadCleanup();
private:
class CurrentThreadHolder
{
public:
CurrentThreadHolder(): _slot(TlsAlloc())
{
if (_slot == TLS_OUT_OF_INDEXES)
throw SystemException("cannot allocate thread context key");
}
~CurrentThreadHolder()
{
TlsFree(_slot);
}
ThreadImpl* get() const
{
return reinterpret_cast<ThreadImpl*>(TlsGetValue(_slot));
}
void set(ThreadImpl* pThread)
{
TlsSetValue(_slot, pThread);
}
private:
DWORD _slot;
};
SharedPtr<Runnable> _pRunnableTarget;
HANDLE _thread;
DWORD _threadId;
int _prio;
int _stackSize;
static 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)
{
Sleep(DWORD(milliseconds));
}
inline void ThreadImpl::yieldImpl()
{
Sleep(0);
}
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
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