From a2872e7c23be404f5473e1c21016dc27ed26f8ff Mon Sep 17 00:00:00 2001
From: Evgeniy Alekseev <i@arcanis.me>
Date: Sun, 12 Mar 2017 05:15:40 +0300
Subject: [PATCH] add sighup catch to daemon

---
 sources/queued-daemon/src/QueuedApplication.cpp |  7 +++----
 sources/queued-daemon/src/main.cpp              | 11 ++++++++++-
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/sources/queued-daemon/src/QueuedApplication.cpp b/sources/queued-daemon/src/QueuedApplication.cpp
index b01c27c..c3076af 100644
--- a/sources/queued-daemon/src/QueuedApplication.cpp
+++ b/sources/queued-daemon/src/QueuedApplication.cpp
@@ -34,6 +34,7 @@ QueuedApplication::QueuedApplication(QObject *parent, const QVariantHash &args)
         qCDebug(LOG_APP) << metadata;
 
     init();
+    initDBus();
 }
 
 
@@ -41,15 +42,14 @@ QueuedApplication::~QueuedApplication()
 {
     qCDebug(LOG_APP) << __PRETTY_FUNCTION__;
 
+    QDBusConnection::sessionBus().unregisterObject(
+            QueuedConfig::DBUS_APPLICATION_PATH);
     deinit();
 }
 
 
 void QueuedApplication::deinit()
 {
-    QDBusConnection::sessionBus().unregisterObject(
-        QueuedConfig::DBUS_APPLICATION_PATH);
-
     if (m_core)
         delete m_core;
 }
@@ -60,7 +60,6 @@ void QueuedApplication::init()
     deinit();
 
     initCore();
-    initDBus();
 }
 
 
diff --git a/sources/queued-daemon/src/main.cpp b/sources/queued-daemon/src/main.cpp
index f77e135..16e37af 100644
--- a/sources/queued-daemon/src/main.cpp
+++ b/sources/queued-daemon/src/main.cpp
@@ -25,10 +25,14 @@
 #include "version.h"
 
 extern "C" {
+#include <signal.h>
 #include <unistd.h>
 }
 
 
+QueuedApplication *instance = nullptr;
+
+
 bool existingSessionOperation(const QString &operation)
 {
     QVariantList arguments = QueuedCoreAdaptor::sendRequest(
@@ -108,6 +112,11 @@ int main(int argc, char *argv[])
     QVariantHash arguments = {{"config", parser.value(configOption)}};
 
     // start application
-    QueuedApplication instance(nullptr, arguments);
+    instance = new QueuedApplication(nullptr, arguments);
+    // catch SIGHUP
+    signal(SIGHUP, [](int sig) ->void {
+        qCInfo(LOG_APP) << "Received SIGHUP signal, reinit components";
+        instance->init();
+    });
     return app.exec();
 }