|
Packit |
1c1d7e |
/****************************************************************************
|
|
Packit |
1c1d7e |
**
|
|
Packit |
1c1d7e |
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
|
|
Packit |
1c1d7e |
** Contact: Nokia Corporation (qt-info@nokia.com)
|
|
Packit |
1c1d7e |
**
|
|
Packit |
1c1d7e |
** This file is part of the QtCore module of the Qt Toolkit.
|
|
Packit |
1c1d7e |
**
|
|
Packit |
1c1d7e |
** $QT_BEGIN_LICENSE:LGPL$
|
|
Packit |
1c1d7e |
** No Commercial Usage
|
|
Packit |
1c1d7e |
** This file contains pre-release code and may not be distributed.
|
|
Packit |
1c1d7e |
** You may use this file in accordance with the terms and conditions
|
|
Packit |
1c1d7e |
** contained in the either Technology Preview License Agreement or the
|
|
Packit |
1c1d7e |
** Beta Release License Agreement.
|
|
Packit |
1c1d7e |
**
|
|
Packit |
1c1d7e |
** GNU Lesser General Public License Usage
|
|
Packit |
1c1d7e |
** Alternatively, this file may be used under the terms of the GNU Lesser
|
|
Packit |
1c1d7e |
** General Public License version 2.1 as published by the Free Software
|
|
Packit |
1c1d7e |
** Foundation and appearing in the file LICENSE.LGPL included in the
|
|
Packit |
1c1d7e |
** packaging of this file. Please review the following information to
|
|
Packit |
1c1d7e |
** ensure the GNU Lesser General Public License version 2.1 requirements
|
|
Packit |
1c1d7e |
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
|
Packit |
1c1d7e |
**
|
|
Packit |
1c1d7e |
** In addition, as a special exception, Nokia gives you certain
|
|
Packit |
1c1d7e |
** additional rights. These rights are described in the Nokia Qt LGPL
|
|
Packit |
1c1d7e |
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
|
|
Packit |
1c1d7e |
** package.
|
|
Packit |
1c1d7e |
**
|
|
Packit |
1c1d7e |
** GNU General Public License Usage
|
|
Packit |
1c1d7e |
** Alternatively, this file may be used under the terms of the GNU
|
|
Packit |
1c1d7e |
** General Public License version 3.0 as published by the Free Software
|
|
Packit |
1c1d7e |
** Foundation and appearing in the file LICENSE.GPL included in the
|
|
Packit |
1c1d7e |
** packaging of this file. Please review the following information to
|
|
Packit |
1c1d7e |
** ensure the GNU General Public License version 3.0 requirements will be
|
|
Packit |
1c1d7e |
** met: http://www.gnu.org/copyleft/gpl.html.
|
|
Packit |
1c1d7e |
**
|
|
Packit |
1c1d7e |
** If you are unsure which license is appropriate for your use, please
|
|
Packit |
1c1d7e |
** contact the sales department at http://www.qtsoftware.com/contact.
|
|
Packit |
1c1d7e |
** $QT_END_LICENSE$
|
|
Packit |
1c1d7e |
**
|
|
Packit |
1c1d7e |
****************************************************************************/
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
#include "qthread.h"
|
|
Packit |
1c1d7e |
#include "qthread_p.h"
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
/**************************************************************************
|
|
Packit |
1c1d7e |
** QThreadPrivate
|
|
Packit |
1c1d7e |
*************************************************************************/
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
QThreadPrivate::QThreadPrivate() :
|
|
Packit |
1c1d7e |
running(FALSE), finished(FALSE), terminated(FALSE), stackSize(0)
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
handle = NULL;
|
|
Packit |
1c1d7e |
waiters = 0;
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
QThreadPrivate::~QThreadPrivate()
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
unsigned int __stdcall QThreadPrivate::start(void *arg)
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
QThread *thr = reinterpret_cast<QThread *>(arg);
|
|
Packit |
1c1d7e |
thr->started();
|
|
Packit |
1c1d7e |
thr->run();
|
|
Packit |
1c1d7e |
finish(arg);
|
|
Packit |
1c1d7e |
return 0;
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
void QThreadPrivate::finish(void *arg,bool lockAnyway)
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
QThread *thr = reinterpret_cast<QThread *>(arg);
|
|
Packit |
1c1d7e |
QThreadPrivate *d = thr->d;
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
if (lockAnyway) d->mutex.lock();
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
d->running = FALSE;
|
|
Packit |
1c1d7e |
d->finished = TRUE;
|
|
Packit |
1c1d7e |
if (d->terminated) thr->terminated();
|
|
Packit |
1c1d7e |
d->terminated = FALSE;
|
|
Packit |
1c1d7e |
thr->finished();
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
if (!d->waiters)
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
CloseHandle(d->handle);
|
|
Packit |
1c1d7e |
d->handle = 0;
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
if (lockAnyway) d->mutex.unlock();
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
/**************************************************************************
|
|
Packit |
1c1d7e |
** QThread
|
|
Packit |
1c1d7e |
*************************************************************************/
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
void QThread::start()
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
QMutexLocker locker(&d->mutex);
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
if (d->running) return;
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
d->running = TRUE;
|
|
Packit |
1c1d7e |
d->finished = FALSE;
|
|
Packit |
1c1d7e |
d->terminated = FALSE;
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
d->handle = CreateThread(NULL,d->stackSize,
|
|
Packit |
1c1d7e |
(LPTHREAD_START_ROUTINE)QThreadPrivate::start,this,0,NULL);
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
if (!d->handle)
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
qWarning("QThread::start: Failed to create thread: errno=%d",errno);
|
|
Packit |
1c1d7e |
d->running = FALSE;
|
|
Packit |
1c1d7e |
d->finished = TRUE;
|
|
Packit |
1c1d7e |
return;
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
void QThread::terminate()
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
QMutexLocker locker(&d->mutex);
|
|
Packit |
1c1d7e |
if (!d->running) return;
|
|
Packit |
1c1d7e |
TerminateThread(d->handle, 0);
|
|
Packit |
1c1d7e |
d->terminated = TRUE;
|
|
Packit |
1c1d7e |
QThreadPrivate::finish(this);
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
void QThread::wait()
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
QMutexLocker locker(&d->mutex);
|
|
Packit |
1c1d7e |
if (d->finished || !d->running) return;
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
++d->waiters;
|
|
Packit |
1c1d7e |
locker.mutex()->unlock();
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
WaitForSingleObject(d->handle,INFINITE);
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
locker.mutex()->lock();
|
|
Packit |
1c1d7e |
--d->waiters;
|
|
Packit |
1c1d7e |
if (!d->finished) // thread was terminated by someone else
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
d->terminated = TRUE;
|
|
Packit |
1c1d7e |
QThreadPrivate::finish(this);
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
if (d->finished && d->waiters)
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
CloseHandle(d->handle);
|
|
Packit |
1c1d7e |
d->handle = 0;
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
int QThread::idealThreadCount()
|
|
Packit |
1c1d7e |
{
|
|
Packit |
1c1d7e |
SYSTEM_INFO sysinfo;
|
|
Packit |
1c1d7e |
GetSystemInfo(&sysinfo);
|
|
Packit |
1c1d7e |
return sysinfo.dwNumberOfProcessors;
|
|
Packit |
1c1d7e |
}
|
|
Packit |
1c1d7e |
|
|
Packit |
1c1d7e |
|