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Merge pull request #8592 from devsnek/sig-handlers
exit gracefully on sigint/sigterm
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1779795d81
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9479940a1f
@ -8,6 +8,10 @@
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#ifdef __APPLE__
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#include <unistd.h> // for chdir
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#endif
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#ifdef __linux__
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#include <csignal>
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#include <sys/socket.h>
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#endif
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// VFS includes must be before glad as they will conflict with Windows file api, which uses defines.
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#include "applets/qt_controller.h"
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@ -259,6 +263,10 @@ GMainWindow::GMainWindow(bool has_broken_vulkan)
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config{std::make_unique<Config>(*system)},
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vfs{std::make_shared<FileSys::RealVfsFilesystem>()},
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provider{std::make_unique<FileSys::ManualContentProvider>()} {
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#ifdef __linux__
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SetupSigInterrupts();
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#endif
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Common::Log::Initialize();
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LoadTranslation();
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@ -462,7 +470,13 @@ GMainWindow::~GMainWindow() {
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if (render_window->parent() == nullptr) {
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delete render_window;
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}
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system->GetRoomNetwork().Shutdown();
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#ifdef __linux__
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::close(sig_interrupt_fds[0]);
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::close(sig_interrupt_fds[1]);
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#endif
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}
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void GMainWindow::RegisterMetaTypes() {
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@ -1352,6 +1366,52 @@ static void ReleaseWakeLockLinux(QDBusObjectPath lock) {
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QString::fromLatin1("org.freedesktop.portal.Request"));
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unlocker.call(QString::fromLatin1("Close"));
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}
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std::array<int, 3> GMainWindow::sig_interrupt_fds{0, 0, 0};
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void GMainWindow::SetupSigInterrupts() {
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if (sig_interrupt_fds[2] == 1) {
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return;
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}
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socketpair(AF_UNIX, SOCK_STREAM, 0, sig_interrupt_fds.data());
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sig_interrupt_fds[2] = 1;
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struct sigaction sa;
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sa.sa_handler = &GMainWindow::HandleSigInterrupt;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = SA_RESETHAND;
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sigaction(SIGINT, &sa, nullptr);
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sigaction(SIGTERM, &sa, nullptr);
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sig_interrupt_notifier = new QSocketNotifier(sig_interrupt_fds[1], QSocketNotifier::Read, this);
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connect(sig_interrupt_notifier, &QSocketNotifier::activated, this,
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&GMainWindow::OnSigInterruptNotifierActivated);
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connect(this, &GMainWindow::SigInterrupt, this, &GMainWindow::close);
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}
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void GMainWindow::HandleSigInterrupt(int sig) {
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if (sig == SIGINT) {
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exit(1);
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}
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// Calling into Qt directly from a signal handler is not safe,
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// so wake up a QSocketNotifier with this hacky write call instead.
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char a = 1;
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int ret = write(sig_interrupt_fds[0], &a, sizeof(a));
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(void)ret;
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}
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void GMainWindow::OnSigInterruptNotifierActivated() {
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sig_interrupt_notifier->setEnabled(false);
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char a;
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int ret = read(sig_interrupt_fds[1], &a, sizeof(a));
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(void)ret;
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sig_interrupt_notifier->setEnabled(true);
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emit SigInterrupt();
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}
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#endif // __linux__
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void GMainWindow::PreventOSSleep() {
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@ -163,6 +163,8 @@ signals:
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void WebBrowserExtractOfflineRomFS();
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void WebBrowserClosed(Service::AM::Applets::WebExitReason exit_reason, std::string last_url);
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void SigInterrupt();
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public slots:
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void OnLoadComplete();
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void OnExecuteProgram(std::size_t program_index);
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@ -251,6 +253,12 @@ private:
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void RequestGameResume();
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void closeEvent(QCloseEvent* event) override;
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#ifdef __linux__
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void SetupSigInterrupts();
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static void HandleSigInterrupt(int);
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void OnSigInterruptNotifierActivated();
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#endif
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private slots:
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void OnStartGame();
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void OnRestartGame();
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@ -419,6 +427,9 @@ private:
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bool is_tas_recording_dialog_active{};
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#ifdef __linux__
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QSocketNotifier* sig_interrupt_notifier;
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static std::array<int, 3> sig_interrupt_fds;
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QDBusObjectPath wake_lock{};
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#endif
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