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QtJambi base module containing QtCore, QtGui and QtWidgets.
/****************************************************************************
**
** Copyright (C) 2009-2024 Dr. Peter Droste, Omix Visualization GmbH & Co. KG. All rights reserved.
**
** This file is part of Qt Jambi.
**
** ** $BEGIN_LICENSE$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
** $END_LICENSE$
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
package io.qt.internal;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.function.BiConsumer;
import io.qt.NativeAccess;
import io.qt.core.QThread;
/**
* @hidden
*/
abstract class ThreadUtility {
private ThreadUtility() {
throw new RuntimeException();
}
private static final Object threadInterruptibleSetterMonitor = new Object();
private static BiConsumer threadInterruptibleSetter;
private static Object interruptible;
private static Object interruptibleInvoke(Object proxy, Method method, Object[] args){
if(args.length==1 && args[0] instanceof Thread) {
Thread _thread = (Thread)args[0];
if(_thread.isAlive()) {
QThread _qthread = QThread.thread(_thread);
if(_qthread!=null && !_qthread.isDisposed() && !_qthread.isInterruptionRequested()){
Object monitor = NativeUtility.findInterfaceLink(_qthread, true);
if(monitor!=null) {
synchronized(monitor){
_qthread.requestInterruption();
}
}
}
}
}
return null;
}
@NativeAccess
private static void setThreadInterruptible(QThread qthread, Thread thread, boolean set) {
BiConsumer setter;
synchronized(threadInterruptibleSetterMonitor){
if(threadInterruptibleSetter==null) {
for(Field field : Thread.class.getDeclaredFields()) {
if(!Modifier.isStatic(field.getModifiers())) {
switch(field.getType().getName()) {
case "sun.nio.ch.Interruptible":
try {
interruptible = java.lang.reflect.Proxy.newProxyInstance(
field.getType().getClassLoader(),
new Class[] { field.getType() },
ThreadUtility::interruptibleInvoke);
} catch (Throwable e) {
}
threadInterruptibleSetter = ReflectionUtility.methodInvocationHandler.getFieldSetter(field);
break;
}
}
}
if(threadInterruptibleSetter==null) {
threadInterruptibleSetter = (t,v)->{};
}
}
setter = threadInterruptibleSetter;
}
Object monitor = qthread==null ? null : NativeUtility.findInterfaceLink(qthread, true);
if(monitor==null){
setter.accept(thread, set ? interruptible : null);
}else {
synchronized(monitor){
setter.accept(thread, set ? interruptible : null);
}
}
}
}