mirror of
https://github.com/pocoproject/poco.git
synced 2024-12-14 11:06:57 +01:00
155 lines
3.7 KiB
C++
155 lines
3.7 KiB
C++
//
|
|
// Thread_POSIX.h
|
|
//
|
|
// $Id: //poco/Main/Foundation/include/Poco/Thread_POSIX.h#5 $
|
|
//
|
|
// Library: Foundation
|
|
// Package: Threading
|
|
// Module: Thread
|
|
//
|
|
// Definition of the ThreadImpl class for POSIX Threads.
|
|
//
|
|
// Copyright (c) 2004-2007, 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_POSIX_INCLUDED
|
|
#define Foundation_Thread_POSIX_INCLUDED
|
|
|
|
|
|
#include "Poco/Foundation.h"
|
|
#include "Poco/Runnable.h"
|
|
#include "Poco/SignalHandler.h"
|
|
#include "Poco/Event.h"
|
|
#include "Poco/RefCountedObject.h"
|
|
#include "Poco/AutoPtr.h"
|
|
#include <pthread.h>
|
|
#if !defined(POCO_NO_SYS_SELECT_H)
|
|
#include <sys/select.h>
|
|
#endif
|
|
#include <errno.h>
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
class Foundation_API ThreadImpl
|
|
{
|
|
public:
|
|
enum Priority
|
|
{
|
|
PRIO_LOWEST_IMPL,
|
|
PRIO_LOW_IMPL,
|
|
PRIO_NORMAL_IMPL,
|
|
PRIO_HIGH_IMPL,
|
|
PRIO_HIGHEST_IMPL
|
|
};
|
|
|
|
ThreadImpl();
|
|
~ThreadImpl();
|
|
|
|
Runnable& targetImpl() const;
|
|
void setPriorityImpl(int prio);
|
|
int getPriorityImpl() const;
|
|
void startImpl(Runnable& target);
|
|
|
|
void joinImpl();
|
|
bool joinImpl(long milliseconds);
|
|
bool isRunningImpl() const;
|
|
static void sleepImpl(long milliseconds);
|
|
static void yieldImpl();
|
|
static ThreadImpl* currentImpl();
|
|
|
|
protected:
|
|
static void* entry(void* pThread);
|
|
static int mapPrio(int prio);
|
|
|
|
private:
|
|
struct ThreadData: public RefCountedObject
|
|
{
|
|
ThreadData():
|
|
pTarget(0),
|
|
thread(0),
|
|
prio(PRIO_NORMAL_IMPL),
|
|
done(false)
|
|
{
|
|
}
|
|
|
|
Runnable* pTarget;
|
|
pthread_t thread;
|
|
int prio;
|
|
Event done;
|
|
};
|
|
|
|
AutoPtr<ThreadData> _pData;
|
|
|
|
static pthread_key_t _currentKey;
|
|
static bool _haveCurrentKey;
|
|
|
|
#if defined(POCO_OS_FAMILY_UNIX)
|
|
SignalHandler::JumpBufferVec _jumpBufferVec;
|
|
friend class SignalHandler;
|
|
#endif
|
|
};
|
|
|
|
|
|
//
|
|
// inlines
|
|
//
|
|
inline int ThreadImpl::getPriorityImpl() const
|
|
{
|
|
return _pData->prio;
|
|
}
|
|
|
|
|
|
inline void ThreadImpl::sleepImpl(long milliseconds)
|
|
{
|
|
#if defined(__VMS) || defined(__digital__)
|
|
// This is specific to DECThreads
|
|
struct timespec interval;
|
|
interval.tv_sec = milliseconds / 1000;
|
|
interval.tv_nsec = (milliseconds % 1000)*1000000;
|
|
pthread_delay_np(&interval);
|
|
#else
|
|
struct timeval tv;
|
|
tv.tv_sec = milliseconds / 1000;
|
|
tv.tv_usec = (milliseconds % 1000) * 1000;
|
|
select(0, NULL, NULL, NULL, &tv);
|
|
#endif
|
|
}
|
|
|
|
|
|
inline void ThreadImpl::yieldImpl()
|
|
{
|
|
sched_yield();
|
|
}
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif // Foundation_Thread_POSIX_INCLUDED
|