60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
// Copyright 2018 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "DolphinQt/QtUtils/SignalDaemon.h"
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <QSocketNotifier>
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int SignalDaemon::s_sigterm_fd[2];
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static constexpr char message[] =
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"\nA signal was received. A second signal will force Dolphin to stop.\n";
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SignalDaemon::SignalDaemon(QObject* parent) : QObject(parent)
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{
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if (socketpair(AF_UNIX, SOCK_STREAM, 0, s_sigterm_fd))
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qFatal("Couldn't create TERM socketpair");
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m_term = new QSocketNotifier(s_sigterm_fd[1], QSocketNotifier::Read, this);
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connect(m_term, &QSocketNotifier::activated, this, &SignalDaemon::OnNotifierActivated);
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}
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SignalDaemon::~SignalDaemon()
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{
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close(s_sigterm_fd[0]);
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close(s_sigterm_fd[1]);
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}
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void SignalDaemon::OnNotifierActivated()
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{
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m_term->setEnabled(false);
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char tmp;
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if (read(s_sigterm_fd[1], &tmp, sizeof(char)) != sizeof(char))
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{
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// Not much we can do here.
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}
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m_term->setEnabled(true);
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emit InterruptReceived();
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}
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void SignalDaemon::HandleInterrupt(int)
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{
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if (write(STDERR_FILENO, message, sizeof(message)) != sizeof(message))
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{
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// Not much we can do here.
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}
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char a = 1;
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if (write(s_sigterm_fd[0], &a, sizeof(a)) != sizeof(a))
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{
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// Not much we can do here.
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}
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}
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