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/*
* Cantata
*
* Copyright (c) 2011-2022 Craig Drummond <craig.p.drummond@gmail.com>
*
* ----
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "thread.h"
#include "globalstatic.h"
#include <QCoreApplication>
#include <QDebug>
#include <QTimer>
#include <QtGlobal>
#include <signal.h>
#ifndef _MSC_VER
#include <unistd.h>
#endif
static bool debugEnabled = false;
#define DBUG \
if (debugEnabled) qWarning() << metaObject()->className() << __FUNCTION__
void ThreadCleaner::enableDebug()
{
debugEnabled = true;
}
static void segvHandler(int i)
{
if (debugEnabled) qWarning() << "SEGV handler called";
_exit(i);
}
GLOBAL_STATIC(ThreadCleaner, instance)
void ThreadCleaner::stopAll()
{
DBUG << "Remaining threads:" << threads.count();
for (Thread* thread : threads) {
DBUG << "Cleanup" << thread->objectName();
disconnect(thread, SIGNAL(finished()), this, SLOT(threadFinished()));
}
for (Thread* thread : threads) {
thread->stop();
}
QList<Thread*> stillRunning;
for (Thread* thread : threads) {
if (thread->wait(250)) {
delete thread;
}
else {
stillRunning.append(thread);
DBUG << "Failed to close" << thread->objectName();
}
}
// Terminate any still running threads...
signal(SIGSEGV, segvHandler);// Ignore SEGV in case a thread throws an error...
for (Thread* thread : stillRunning) {
thread->terminate();
}
}
void ThreadCleaner::threadFinished()
{
Thread* thread = qobject_cast<Thread*>(sender());
if (thread) {
thread->deleteLater();
threads.removeAll(thread);
DBUG << "Thread finished" << thread->objectName() << "Total threads:" << threads.count();
}
}
void ThreadCleaner::add(Thread* thread)
{
threads.append(thread);
connect(thread, SIGNAL(finished()), this, SLOT(threadFinished()));
DBUG << "Thread created" << thread->objectName() << "Total threads:" << threads.count();
}
Thread::Thread(const QString& name, QObject* p)
: QThread(p)
{
setObjectName(name);
ThreadCleaner::self()->add(this);
}
Thread::~Thread()
{
DBUG << objectName() << "destroyed";
}
void Thread::run()
{
QThread::run();
}
QTimer* Thread::createTimer(QObject* parent)
{
QTimer* timer = new QTimer(parent ? parent : this);
connect(this, SIGNAL(finished()), timer, SLOT(stop()));
return timer;
}
void Thread::deleteTimer(QTimer* timer)
{
if (timer) {
disconnect(this, SIGNAL(finished()), timer, SLOT(stop()));
timer->deleteLater();
}
}
#include "moc_thread.cpp"
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