127 lines
3.2 KiB
C++
127 lines
3.2 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2017 Craig Drummond <craig.p.drummond@gmail.com>
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*
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* ----
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "thread.h"
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#include "globalstatic.h"
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#include "utils.h"
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#include <QCoreApplication>
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#include <QtGlobal>
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#include <QTimer>
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#include <QDebug>
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#include <signal.h>
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#include <unistd.h>
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static bool debugEnabled=false;
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#define DBUG if (debugEnabled) qWarning() << metaObject()->className() << __FUNCTION__
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void ThreadCleaner::enableDebug()
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{
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debugEnabled=true;
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}
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static void segvHandler(int i)
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{
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if (debugEnabled) qWarning() << "SEGV handler called";
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_exit(i);
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}
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GLOBAL_STATIC(ThreadCleaner, instance)
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void ThreadCleaner::stopAll()
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{
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DBUG << "Remaining threads:" << threads.count();
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foreach (Thread *thread, threads) {
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DBUG << "Cleanup" << thread->objectName();
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disconnect(thread, SIGNAL(finished()), this, SLOT(threadFinished()));
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}
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foreach (Thread *thread, threads) {
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thread->stop();
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}
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QList<Thread *> stillRunning;
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foreach (Thread *thread, threads) {
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if (thread->wait(250)) {
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delete thread;
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} else {
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stillRunning.append(thread);
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DBUG << "Failed to close" << thread->objectName();
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}
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}
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// Terminate any still running threads...
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signal(SIGSEGV, segvHandler); // Ignore SEGV in case a thread throws an error...
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foreach (Thread *thread, stillRunning) {
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thread->terminate();
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}
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}
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void ThreadCleaner::threadFinished()
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{
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Thread *thread=qobject_cast<Thread *>(sender());
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if (thread) {
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thread->deleteLater();
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threads.removeAll(thread);
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DBUG << "Thread finished" << thread->objectName() << "Total threads:" << threads.count();
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}
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}
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void ThreadCleaner::add(Thread *thread)
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{
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threads.append(thread);
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connect(thread, SIGNAL(finished()), this, SLOT(threadFinished()));
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DBUG << "Thread created" << thread->objectName() << "Total threads:" << threads.count();
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}
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Thread::Thread(const QString &name, QObject *p)
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: QThread(p)
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{
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setObjectName(name);
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ThreadCleaner::self()->add(this);
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}
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Thread::~Thread()
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{
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DBUG << objectName() << "destroyed";
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}
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void Thread::run()
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{
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Utils::initRand();
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QThread::run();
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}
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QTimer * Thread::createTimer(QObject *parent)
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{
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QTimer *timer=new QTimer(parent ? parent : this);
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connect(this, SIGNAL(finished()), timer, SLOT(stop()));
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return timer;
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}
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void Thread::deleteTimer(QTimer *timer)
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{
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if (timer) {
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disconnect(this, SIGNAL(finished()), timer, SLOT(stop()));
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timer->deleteLater();
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}
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}
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