File indexing completed on 2024-05-19 05:39:08

 /*
     SPDX-FileCopyrightText: 2021 Aleix Pol Gonzalez <aleixpol@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-only
 */
 
 #include "signalhandler.h"
 #include "debug.h"
 
 #include <QDebug>
 #include <signal.h>
 #include <sys/socket.h>
 #include <unistd.h>
 
 int SignalHandler::signalFd[2];
 
 SignalHandler::SignalHandler()
 {
     if (::socketpair(AF_UNIX, SOCK_STREAM, 0, signalFd)) {
         qCWarning(PLASMA_SESSION) << "Couldn't create a socketpair";
         return;
     }
 
     m_handler = new QSocketNotifier(signalFd[1], QSocketNotifier::Read, this);
     connect(m_handler, &QSocketNotifier::activated, this, &SignalHandler::handleSignal);
 }
 
 SignalHandler::~SignalHandler()
 {
     for (int sig : std::as_const(m_signalsRegistered)) {
         signal(sig, nullptr);
     }
     close(signalFd[0]);
     close(signalFd[1]);
 }
 
 void SignalHandler::addSignal(int signalToTrack)
 {
     m_signalsRegistered.insert(signalToTrack);
     signal(signalToTrack, signalHandler);
 }
 
 void SignalHandler::signalHandler(int signal)
 {
     ::write(signalFd[0], &signal, sizeof(signal));
 }
 
 void SignalHandler::handleSignal()
 {
     m_handler->setEnabled(false);
     int signal;
     ::read(signalFd[1], &signal, sizeof(signal));
     m_handler->setEnabled(true);
 
     Q_EMIT signalReceived(signal);
 }
 
 SignalHandler *SignalHandler::self()
 {
     static SignalHandler s_self;
     return &s_self;
 }