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155 lines
3.7 KiB
C++
155 lines
3.7 KiB
C++
//
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// Thread_POSIX.h
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//
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// $Id: //poco/Main/Foundation/include/Poco/Thread_POSIX.h#5 $
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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 POSIX Threads.
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//
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// Copyright (c) 2004-2007, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef Foundation_Thread_POSIX_INCLUDED
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#define Foundation_Thread_POSIX_INCLUDED
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#include "Poco/Foundation.h"
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#include "Poco/Runnable.h"
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#include "Poco/SignalHandler.h"
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#include "Poco/Event.h"
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#include "Poco/RefCountedObject.h"
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#include "Poco/AutoPtr.h"
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#include <pthread.h>
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#if !defined(POCO_NO_SYS_SELECT_H)
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#include <sys/select.h>
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#endif
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#include <errno.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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enum Priority
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{
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PRIO_LOWEST_IMPL,
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PRIO_LOW_IMPL,
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PRIO_NORMAL_IMPL,
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PRIO_HIGH_IMPL,
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PRIO_HIGHEST_IMPL
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};
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ThreadImpl();
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~ThreadImpl();
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Runnable& targetImpl() const;
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void setPriorityImpl(int prio);
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int getPriorityImpl() const;
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void startImpl(Runnable& target);
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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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protected:
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static void* entry(void* pThread);
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static int mapPrio(int prio);
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private:
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struct ThreadData: public RefCountedObject
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{
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ThreadData():
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pTarget(0),
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thread(0),
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prio(PRIO_NORMAL_IMPL),
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done(false)
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{
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}
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Runnable* pTarget;
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pthread_t thread;
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int prio;
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Event done;
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};
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AutoPtr<ThreadData> _pData;
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static pthread_key_t _currentKey;
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static bool _haveCurrentKey;
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#if defined(POCO_OS_FAMILY_UNIX)
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SignalHandler::JumpBufferVec _jumpBufferVec;
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friend class SignalHandler;
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#endif
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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 _pData->prio;
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}
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inline void ThreadImpl::sleepImpl(long milliseconds)
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{
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#if defined(__VMS) || defined(__digital__)
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// This is specific to DECThreads
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struct timespec interval;
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interval.tv_sec = milliseconds / 1000;
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interval.tv_nsec = (milliseconds % 1000)*1000000;
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pthread_delay_np(&interval);
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#else
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struct timeval tv;
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tv.tv_sec = milliseconds / 1000;
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tv.tv_usec = (milliseconds % 1000) * 1000;
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select(0, NULL, NULL, NULL, &tv);
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#endif
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}
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inline void ThreadImpl::yieldImpl()
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{
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sched_yield();
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}
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} // namespace Poco
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#endif // Foundation_Thread_POSIX_INCLUDED
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