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/*
* SPDX-FileCopyrightText: 2025 Bhushan Shah <bshah@kde.org>
*
* SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
*/
#include "wakeupsourcehelper.h"
#include <KAuth/HelperSupport>
#include <QDir>
#include <QFile>
#include <QRegularExpression>
using namespace Qt::StringLiterals;
static const QString s_wakeupCountSysFsPath = QStringLiteral("/sys/power/wakeup_count");
static const QString s_memSleepModeSysFsPath = QStringLiteral("/sys/power/mem_sleep");
WakeupSourceHelper::WakeupSourceHelper(QObject *parent)
: QObject(parent)
{
}
ActionReply WakeupSourceHelper::setwakeupcount(const QVariantMap &args)
{
Q_UNUSED(args)
// First check if current suspend mode is s2idle, then only proceed further
QFile memSleepFile(s_memSleepModeSysFsPath);
if (!memSleepFile.open(QIODevice::ReadOnly)) {
auto reply = ActionReply::HelperErrorReply();
reply.setErrorDescription(QStringLiteral("Failed to get current sleep mode, skipping wakeup source helper"));
return reply;
}
QString sleepMode;
QTextStream memSleepStream(&memSleepFile);
// text will be in form of "s2idle [deep]", we want to check current mode.
QRegularExpression re(uR"(\[(\w+)\])"_s);
QRegularExpressionMatch match = re.match(memSleepStream.readLine());
if (match.hasMatch()) {
sleepMode = match.captured(1);
}
if (sleepMode != QLatin1StringView("s2idle")) {
// Since currently there are platform bugs with deep mode
// let's skip writing wakeup count.
return ActionReply::SuccessReply();
}
QFile wakeupFile(s_wakeupCountSysFsPath);
// If wakeup_count can not be opened, it may mean something is running suspend already
if (!wakeupFile.open(QIODevice::ReadWrite)) {
auto reply = ActionReply::HelperErrorReply();
reply.setErrorDescription(QStringLiteral("Failed to open wakeup_count, suspend maybe already in progress"));
return reply;
}
// Read current wakeup count
int wakeupCount = -1;
QTextStream stream(&wakeupFile);
stream >> wakeupCount;
// write same count
if (wakeupFile.write(QByteArray::number(wakeupCount)) == -1) {
auto reply = ActionReply::HelperErrorReply();
reply.setErrorDescription(QStringLiteral("Failed to write wakeup_count, wakeup_count may have changed in between"));
return reply;
}
return ActionReply::SuccessReply();
}
KAUTH_HELPER_MAIN("org.kde.powerdevil.wakeupsourcehelper", WakeupSourceHelper)
#include "moc_wakeupsourcehelper.cpp"
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