From 8d7d5225c482bfd52e0cea7399be2f4d00c64a92 Mon Sep 17 00:00:00 2001
From: Peter L Jones <peter@drealm.info>
Date: Thu, 21 May 2020 18:52:48 +0100
Subject: [PATCH] #70 Exit client cleanly on signal

---
 src/client.cpp | 29 ++++++++++++++++++++++++++++-
 src/client.h   |  6 ++++++
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/src/client.cpp b/src/client.cpp
index 99f4f588..291100bd 100755
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -79,7 +79,8 @@ CClient::CClient ( const quint16  iPortNumber,
     bJitterBufferOK                  ( true ),
     strCentralServerAddress          ( "" ),
     eCentralServerAddressType        ( AT_DEFAULT ),
-    iServerSockBufNumFrames          ( DEF_NET_BUF_SIZE_NUM_BL )
+    iServerSockBufNumFrames          ( DEF_NET_BUF_SIZE_NUM_BL ),
+    pSignalHandler                   ( CSignalHandler::getSingletonP() )
 {
     int iOpusError;
 
@@ -213,6 +214,10 @@ CClient::CClient ( const quint16  iPortNumber,
     QObject::connect ( &Socket, SIGNAL ( InvalidPacketReceived ( CHostAddress ) ),
         this, SLOT ( OnInvalidPacketReceived ( CHostAddress ) ) );
 
+    QObject::connect ( pSignalHandler,
+        SIGNAL ( HandledSignal ( int ) ),
+        this, SLOT ( OnHandledSignal ( int ) ) );
+
 
     // start the socket (it is important to start the socket after all
     // initializations and connections)
@@ -656,6 +661,28 @@ void CClient::OnCLChannelLevelListReceived ( CHostAddress      InetAddr,
     emit CLChannelLevelListReceived ( InetAddr, vecLevelList );
 }
 
+void CClient::OnHandledSignal(int sigNum)
+{
+#ifdef _WIN32
+    // Windows does not actually get OnHandledSignal triggered
+    QCoreApplication::instance()->exit();
+    Q_UNUSED ( sigNum )
+#else
+    switch ( sigNum )
+    {
+
+    case SIGINT:
+    case SIGTERM:
+        // This should trigger OnAboutToQuit
+        QCoreApplication::instance()->exit();
+        break;
+
+    default:
+        break;
+    }
+#endif
+}
+
 void CClient::Start()
 {
     // init object
diff --git a/src/client.h b/src/client.h
index 743a9ff4..e97af2ee 100755
--- a/src/client.h
+++ b/src/client.h
@@ -39,6 +39,7 @@
 #include "channel.h"
 #include "util.h"
 #include "buffer.h"
+#include "signalhandler.h"
 #ifdef LLCON_VST_PLUGIN
 # include "vstsound.h"
 #else
@@ -389,6 +390,8 @@ protected:
     // for ping measurement
     CPreciseTime            PreciseTime;
 
+    CSignalHandler*            pSignalHandler;
+
 public slots:
     void OnSendProtMessage ( CVector<uint8_t> vecMessage );
     void OnInvalidPacketReceived ( CHostAddress RecHostAddr );
@@ -417,6 +420,9 @@ public slots:
     void OnCLChannelLevelListReceived ( CHostAddress      InetAddr,
                                         CVector<uint16_t> vecLevelList );
 
+private slots:
+    void OnHandledSignal ( int sigNum );
+
 signals:
     void ConClientListMesReceived ( CVector<CChannelInfo> vecChanInfo );
     void ChatTextReceived ( QString strChatText );