Handle SIGINT, SIGTERM, SIGUP and SIGQUIT

src/backend/qml_bridge.py

@@ -14,9 +14,9 @@ class.
 """
 
 import asyncio
+import atexit
 import logging as log
 import os
-import pyotherside
 import signal
 import traceback
 from concurrent.futures import Future
@@ -24,6 +24,8 @@ from operator import attrgetter
 from threading import Thread
 from typing import Coroutine, Sequence
 
+import pyotherside
+
 from .pyotherside_events import CoroutineDone, LoopException
 
 

src/main.cpp

@@ -12,7 +12,7 @@
 #include <QQuickStyle>
 #include <QFontDatabase>
 #include <QDateTime>
-#include <QDebug>
+#include <signal.h>
 
 #ifdef Q_OS_UNIX
 #include <unistd.h>
@@ -77,6 +77,11 @@ void loggingHandler(
 }
 
 
+void onExitSignal(int signum) {
+    QApplication::exit(128 + signum);
+}
+
+
 int main(int argc, char *argv[]) {
     qInstallMessageHandler(loggingHandler);
 
@@ -88,6 +93,15 @@ int main(int argc, char *argv[]) {
     QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QApplication app(argc, argv);
 
+    // Register handlers for quit signals, e.g. SIGINT/Ctrl-C in unix terminals
+    signal(SIGINT, onExitSignal);
+    signal(SIGTERM, onExitSignal);
+    #ifdef Q_OS_UNIX
+    signal(SIGQUIT, onExitSignal);
+    signal(SIGHUP, onExitSignal);
+    #endif
+
+
     // Force the default universal QML style, notably prevents
     // KDE from hijacking base controls and messing up everything
     QQuickStyle::setStyle("Fusion");