winrt: process pending data before closing a socket connection

If data is received and the remote immediately closes the connection,
it was possible that data was lost. If a remote closes the connection
make sure that any pending data is processed, before signaling closing
of the socket.

Change-Id: Ia94a616a31184fd28695919baaff99811fe0f1dd
Reviewed-by: Andre de la Rocha <andre.rocha@qt.io>
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@qt.io>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/network/socket/qnativesocketengine_winrt_p.h b/src/network/socket/qnativesocketengine_winrt_p.h
index f47e2a7dd7..6688bfe35c 100644
--- a/src/network/socket/qnativesocketengine_winrt_p.h
+++ b/src/network/socket/qnativesocketengine_winrt_p.h
@@ -184,6 +184,7 @@ private slots:
                                  WinRTSocketEngine::ErrorString errorString);
     void handleNewData();
     void handleTcpError(QAbstractSocket::SocketError error);
+    void processReadReady();
 
 private:
     Q_DECLARE_PRIVATE(QNativeSocketEngine)
@@ -228,6 +229,7 @@ private:
     EventRegistrationToken connectionToken;
 
     bool emitReadReady = true;
+    bool pendingReadNotification = false;
 
     HRESULT handleClientConnection(ABI::Windows::Networking::Sockets::IStreamSocketListener *tcpListener,
                                    ABI::Windows::Networking::Sockets::IStreamSocketListenerConnectionReceivedEventArgs *args);