poco/Foundation/include/Poco/Thread_POSIX.h
Matej Kenda f24547cdcf enh(Poco): Mark deprecated functionality with C++ attributes and resolve internal usage of deprecated functions (#4551)
* enh(poco): Replace deprecated comments with C++ deprecated attribute.

* enh(Poco): Replace some deprecated functionality in Poco sources. (#4426)

* enh(Poco): Replace more deprecated functionality in Poco sources. (#4426)

* fix(CMake): Variable BUILD_SHARED_LIBS must be defined properly to create valid binaries.

* enh: Code improvements done while resolving deprecated functionality (#4426)

* Un-deprecate LocalDateTme (#4426)

* enh(Poco): Replace usage of deprecated functionality with other functions/classes (#4426)

* chore(SSL): temporarily un-deprecate SSL-related functionality (#4426)

* chore(SSL): temporarily un-deprecate old MongoDB protocol functionality (#4426)

* enh(Poco): Minor Hash improvements (#4426)

* enh(Foundation): Compile deprecated hash tests only when POCO_TEST_DEPRECATED is enabled (#4426)

* enh(Net): Compile deprecated Socket::select functionality only when POCO_TEST_DEPRECATED is enabled (#4426)

* enh(Bonjour): Replace deprecated Socket::select with PollSet (#4426)

* enh(Poco): Introduce POCO_DEPRECATED macro to have the ability to disable deprecation warnings in applications (#4426)

* test(ODBC): add few asserts to testStoredProcedureDynamicVar

* fix(ODBC): rename DynamicAny -> DynamicVar in tests

* fix(ODBC): make Dignostics static members inline to prevent explicit instantiation warnings on windows

---------

Co-authored-by: Alex Fabijanic <alex@pocoproject.org>
2024-07-29 08:37:35 +02:00

209 lines
4.3 KiB
C++

//
// Thread_POSIX.h
//
// 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.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_Thread_POSIX_INCLUDED
#define Foundation_Thread_POSIX_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/Mutex.h"
#include "Poco/Runnable.h"
#include "Poco/SignalHandler.h"
#include "Poco/Event.h"
#include "Poco/RefCountedObject.h"
#include "Poco/AutoPtr.h"
#include "Poco/SharedPtr.h"
#include <pthread.h>
// must be limits.h (not <climits>) for PTHREAD_STACK_MIN on Solaris
#include <limits.h>
#if !defined(POCO_NO_SYS_SELECT_H)
#include <sys/select.h>
#endif
#if defined(POCO_VXWORKS)
#include <cstring>
#endif
namespace Poco {
class Foundation_API ThreadImpl
{
public:
using TIDImpl = pthread_t;
using Callable = void (*)(void *);
enum Priority
{
PRIO_LOWEST_IMPL,
PRIO_LOW_IMPL,
PRIO_NORMAL_IMPL,
PRIO_HIGH_IMPL,
PRIO_HIGHEST_IMPL
};
enum Policy
{
POLICY_DEFAULT_IMPL = SCHED_OTHER
};
ThreadImpl();
~ThreadImpl();
TIDImpl tidImpl() const;
void setNameImpl(const std::string& threadName);
std::string getNameImpl() const;
std::string getOSThreadNameImpl();
/// Returns the thread's name, expressed as an operating system
/// specific name value. Return empty string if thread is not running.
/// For test used only.
void setPriorityImpl(int prio);
int getPriorityImpl() const;
void setOSPriorityImpl(int prio, int policy = SCHED_OTHER);
int getOSPriorityImpl() const;
static int getMinOSPriorityImpl(int policy);
static int getMaxOSPriorityImpl(int policy);
void setStackSizeImpl(int size);
int getStackSizeImpl() const;
void setSignalMaskImpl(uint32_t sigMask);
void startImpl(SharedPtr<Runnable> pTarget);
void joinImpl();
bool joinImpl(long milliseconds);
bool isRunningImpl() const;
static void yieldImpl();
static ThreadImpl* currentImpl();
static TIDImpl currentTidImpl();
static long currentOsTidImpl();
bool setAffinityImpl(int coreID);
int getAffinityImpl() const;
protected:
static void* runnableEntry(void* pThread);
static int mapPrio(int prio, int policy = SCHED_OTHER);
static int reverseMapPrio(int osPrio, int policy = SCHED_OTHER);
private:
class CurrentThreadHolder
{
public:
CurrentThreadHolder()
{
if (pthread_key_create(&_key, nullptr))
throw SystemException("cannot allocate thread context key");
}
~CurrentThreadHolder()
{
pthread_key_delete(_key);
}
ThreadImpl* get() const
{
return reinterpret_cast<ThreadImpl*>(pthread_getspecific(_key));
}
void set(ThreadImpl* pThread)
{
pthread_setspecific(_key, pThread);
}
private:
pthread_key_t _key;
};
struct ThreadData: public RefCountedObject
{
ThreadData():
thread(0),
prio(PRIO_NORMAL_IMPL),
osPrio(),
policy(SCHED_OTHER),
done(Event::EVENT_MANUALRESET),
stackSize(POCO_THREAD_STACK_SIZE),
started(false),
joined(false)
{
#if defined(POCO_VXWORKS)
// This workaround is for VxWorks 5.x where
// pthread_init() won't properly initialize the thread.
std::memset(&thread, 0, sizeof(thread));
#endif
}
SharedPtr<Runnable> pRunnableTarget;
pthread_t thread;
int prio;
int osPrio;
int policy;
Event done;
std::size_t stackSize;
std::atomic<bool> started;
std::atomic<bool> joined;
std::string name;
int affinity;
mutable FastMutex mutex;
};
AutoPtr<ThreadData> _pData;
static CurrentThreadHolder _currentThreadHolder;
#if defined(POCO_OS_FAMILY_UNIX) && !defined(POCO_VXWORKS)
SignalHandler::JumpBufferVec _jumpBufferVec;
friend class SignalHandler;
#endif
};
//
// inlines
//
inline int ThreadImpl::getPriorityImpl() const
{
return _pData->prio;
}
inline int ThreadImpl::getOSPriorityImpl() const
{
return _pData->osPrio;
}
inline bool ThreadImpl::isRunningImpl() const
{
FastMutex::ScopedLock l(_pData->mutex);
return !_pData->pRunnableTarget.isNull();
}
inline void ThreadImpl::yieldImpl()
{
sched_yield();
}
inline int ThreadImpl::getStackSizeImpl() const
{
return static_cast<int>(_pData->stackSize);
}
inline ThreadImpl::TIDImpl ThreadImpl::tidImpl() const
{
return _pData->thread;
}
} // namespace Poco
#endif // Foundation_Thread_POSIX_INCLUDED