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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* qt_event_dispatcher.cpp - qcam - Qt-based event dispatcher
*/
#include <iostream>
#include <QAbstractEventDispatcher>
#include <QCoreApplication>
#include <QSocketNotifier>
#include <QTimerEvent>
#include <libcamera/event_notifier.h>
#include <libcamera/timer.h>
#include "qt_event_dispatcher.h"
using namespace libcamera;
QtEventDispatcher::QtEventDispatcher()
{
}
QtEventDispatcher::~QtEventDispatcher()
{
for (auto &it : notifiers_) {
NotifierSet &set = it.second;
delete set.read.qnotifier;
delete set.write.qnotifier;
delete set.exception.qnotifier;
}
}
void QtEventDispatcher::registerEventNotifier(EventNotifier *notifier)
{
NotifierSet &set = notifiers_[notifier->fd()];
QSocketNotifier::Type qtype;
void (QtEventDispatcher::*method)(int);
NotifierPair *pair;
switch (notifier->type()) {
case EventNotifier::Read:
default:
qtype = QSocketNotifier::Read;
method = &QtEventDispatcher::readNotifierActivated;
pair = &set.read;
break;
case EventNotifier::Write:
qtype = QSocketNotifier::Write;
method = &QtEventDispatcher::writeNotifierActivated;
pair = &set.write;
break;
case EventNotifier::Exception:
qtype = QSocketNotifier::Exception;
method = &QtEventDispatcher::exceptionNotifierActivated;
pair = &set.exception;
break;
}
QSocketNotifier *qnotifier = new QSocketNotifier(notifier->fd(), qtype);
connect(qnotifier, &QSocketNotifier::activated, this, method);
pair->notifier = notifier;
pair->qnotifier = qnotifier;
}
void QtEventDispatcher::unregisterEventNotifier(EventNotifier *notifier)
{
NotifierSet &set = notifiers_[notifier->fd()];
NotifierPair *pair;
switch (notifier->type()) {
case EventNotifier::Read:
default:
pair = &set.read;
break;
case EventNotifier::Write:
pair = &set.write;
break;
case EventNotifier::Exception:
pair = &set.exception;
break;
}
delete pair->qnotifier;
pair->qnotifier = nullptr;
pair->notifier = nullptr;
}
void QtEventDispatcher::readNotifierActivated(int socket)
{
EventNotifier *notifier = notifiers_[socket].read.notifier;
notifier->activated.emit(notifier);
}
void QtEventDispatcher::writeNotifierActivated(int socket)
{
EventNotifier *notifier = notifiers_[socket].write.notifier;
notifier->activated.emit(notifier);
}
void QtEventDispatcher::exceptionNotifierActivated(int socket)
{
EventNotifier *notifier = notifiers_[socket].exception.notifier;
notifier->activated.emit(notifier);
}
void QtEventDispatcher::registerTimer(Timer *timer)
{
int timerId = startTimer(timer->interval());
timers_[timerId] = timer;
timerIds_[timer] = timerId;
}
void QtEventDispatcher::unregisterTimer(Timer *timer)
{
auto it = timerIds_.find(timer);
timers_.erase(it->second);
killTimer(it->second);
timerIds_.erase(it);
}
void QtEventDispatcher::timerEvent(QTimerEvent *event)
{
auto it = timers_.find(event->timerId());
timerIds_.erase(it->second);
killTimer(it->first);
timers_.erase(it);
}
void QtEventDispatcher::processEvents()
{
std::cout << "QtEventDispatcher::processEvents() should not be called"
<< std::endl;
}
void QtEventDispatcher::interrupt()
{
QCoreApplication::eventDispatcher()->interrupt();
}
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