mirror of
https://github.com/pocoproject/poco.git
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184 lines
3.2 KiB
C++
184 lines
3.2 KiB
C++
//
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// Thread_WIN32.h
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//
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// Library: Foundation
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// Package: Threading
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// Module: Thread
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//
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// Definition of the ThreadImpl class for WIN32.
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//
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// Copyright (c) 2004-2009, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_Thread_WIN32_INCLUDED
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#define Foundation_Thread_WIN32_INCLUDED
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#include "Poco/Foundation.h"
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#include "Poco/Runnable.h"
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#include "Poco/SharedPtr.h"
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#include "Poco/UnWindows.h"
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namespace Poco {
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class Foundation_API ThreadImpl
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{
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public:
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typedef DWORD TIDImpl;
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typedef void (*Callable)(void*);
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#if defined(_DLL)
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typedef DWORD (WINAPI *Entry)(LPVOID);
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#else
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typedef unsigned (__stdcall *Entry)(void*);
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#endif
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enum Priority
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{
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PRIO_LOWEST_IMPL = THREAD_PRIORITY_LOWEST,
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PRIO_LOW_IMPL = THREAD_PRIORITY_BELOW_NORMAL,
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PRIO_NORMAL_IMPL = THREAD_PRIORITY_NORMAL,
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PRIO_HIGH_IMPL = THREAD_PRIORITY_ABOVE_NORMAL,
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PRIO_HIGHEST_IMPL = THREAD_PRIORITY_HIGHEST
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};
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enum Policy
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{
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POLICY_DEFAULT_IMPL = 0
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};
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ThreadImpl();
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~ThreadImpl();
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TIDImpl tidImpl() const;
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void setPriorityImpl(int prio);
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int getPriorityImpl() const;
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void setOSPriorityImpl(int prio, int policy = 0);
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int getOSPriorityImpl() const;
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static int getMinOSPriorityImpl(int policy);
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static int getMaxOSPriorityImpl(int policy);
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void setStackSizeImpl(int size);
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int getStackSizeImpl() const;
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void startImpl(SharedPtr<Runnable> pTarget);
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void joinImpl();
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bool joinImpl(long milliseconds);
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bool isRunningImpl() const;
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static void sleepImpl(long milliseconds);
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static void yieldImpl();
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static ThreadImpl* currentImpl();
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static TIDImpl currentTidImpl();
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protected:
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#if defined(_DLL)
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static DWORD WINAPI runnableEntry(LPVOID pThread);
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#else
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static unsigned __stdcall runnableEntry(void* pThread);
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#endif
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void createImpl(Entry ent, void* pData);
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void threadCleanup();
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private:
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class CurrentThreadHolder
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{
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public:
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CurrentThreadHolder(): _slot(TlsAlloc())
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{
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if (_slot == TLS_OUT_OF_INDEXES)
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throw SystemException("cannot allocate thread context key");
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}
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~CurrentThreadHolder()
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{
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TlsFree(_slot);
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}
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ThreadImpl* get() const
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{
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return reinterpret_cast<ThreadImpl*>(TlsGetValue(_slot));
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}
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void set(ThreadImpl* pThread)
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{
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TlsSetValue(_slot, pThread);
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}
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private:
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DWORD _slot;
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};
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SharedPtr<Runnable> _pRunnableTarget;
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HANDLE _thread;
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DWORD _threadId;
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int _prio;
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int _stackSize;
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static CurrentThreadHolder _currentThreadHolder;
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};
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//
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// inlines
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//
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inline int ThreadImpl::getPriorityImpl() const
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{
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return _prio;
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}
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inline int ThreadImpl::getOSPriorityImpl() const
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{
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return _prio;
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}
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inline int ThreadImpl::getMinOSPriorityImpl(int /* policy */)
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{
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return PRIO_LOWEST_IMPL;
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}
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inline int ThreadImpl::getMaxOSPriorityImpl(int /* policy */)
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{
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return PRIO_HIGHEST_IMPL;
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}
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inline void ThreadImpl::sleepImpl(long milliseconds)
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{
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Sleep(DWORD(milliseconds));
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}
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inline void ThreadImpl::yieldImpl()
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{
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Sleep(0);
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}
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inline void ThreadImpl::setStackSizeImpl(int size)
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{
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_stackSize = size;
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}
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inline int ThreadImpl::getStackSizeImpl() const
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{
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return _stackSize;
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}
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inline ThreadImpl::TIDImpl ThreadImpl::tidImpl() const
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{
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return _threadId;
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}
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} // namespace Poco
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#endif // Foundation_Thread_WIN32_INCLUDED
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