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/*
processtracker.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2016 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Filipe Azevedo <filipe.azevedo@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "processtracker.h"
#include <QDebug>
#include <QTimer>
using namespace GammaRay;
class ProcessTracker::D : public QObject
{
Q_OBJECT
public:
GammaRay::ProcessTracker *tracker;
GammaRay::ProcessTrackerBackend *backend;
QTimer *ticker;
GammaRay::ProcessTrackerInfo previousInfo;
qint64 pid;
explicit D(GammaRay::ProcessTracker *tracker)
: QObject(tracker)
, tracker(tracker)
, backend(nullptr)
, ticker(new QTimer(this))
, pid(-1)
{
ticker->setSingleShot(false);
connect(ticker, &QTimer::timeout, this, &D::requestUpdate);
}
public slots:
void requestUpdate() const
{
if (!backend) {
qWarning("%s: Backend not set", Q_FUNC_INFO);
return;
}
if (pid < 0) {
qWarning("%s: Pid not set", Q_FUNC_INFO);
return;
}
backend->checkProcess(pid);
}
void processChecked(const GammaRay::ProcessTrackerInfo &info)
{
if (pid != info.pid) {
return;
}
if (info != previousInfo) {
previousInfo = info;
emit tracker->infoChanged(info);
}
}
};
ProcessTracker::ProcessTracker(QObject *parent)
: QObject(parent)
, d(new D(this))
{
qRegisterMetaType<GammaRay::ProcessTrackerInfo>("GammaRay::ProcessTrackerInfo");
}
ProcessTracker::~ProcessTracker()
{
stop();
}
GammaRay::ProcessTrackerBackend *ProcessTracker::backend() const
{
return d->backend;
}
void ProcessTracker::setBackend(GammaRay::ProcessTrackerBackend *backend)
{
if (backend == d->backend) {
return;
}
if (d->backend) {
disconnect(d->backend, &ProcessTrackerBackend::processChecked,
d.data(), &D::processChecked);
}
d->backend = backend;
if (d->backend) {
connect(d->backend, &ProcessTrackerBackend::processChecked,
d.data(), &D::processChecked, Qt::QueuedConnection);
}
emit backendChanged(d->backend);
}
qint64 ProcessTracker::pid() const
{
return d->pid;
}
bool ProcessTracker::isActive() const
{
return d->ticker->isActive();
}
void ProcessTracker::setPid(qint64 pid)
{
d->previousInfo = ProcessTrackerInfo();
d->pid = pid;
}
void ProcessTracker::start(int msecs)
{
d->previousInfo = ProcessTrackerInfo();
d->ticker->start(msecs);
}
void ProcessTracker::stop()
{
d->previousInfo = ProcessTrackerInfo();
d->ticker->stop();
}
bool ProcessTrackerInfo::operator==(const GammaRay::ProcessTrackerInfo &other) const
{
return pid == other.pid && traced == other.traced && state == other.state;
}
bool ProcessTrackerInfo::operator!=(const GammaRay::ProcessTrackerInfo &other) const
{
return !operator==(other);
}
ProcessTrackerBackend::ProcessTrackerBackend(QObject *parent)
: QObject(parent)
{
}
#include "processtracker.moc"
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