QmlDebug: make qt_qmlDebugClearBuffer() accessible

 - also fix that qt_qmlDebugMessageBuffer is always valid

Change-Id: I3661e424ecaeb7d8c8bd3b1acb137ae34a3f06e4
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/plugins/qmltooling/qmldbg_native/qqmlnativedebugconnector.cpp b/src/plugins/qmltooling/qmldbg_native/qqmlnativedebugconnector.cpp
index 09baa73f7d..bbb4ea0d88 100644
--- a/src/plugins/qmltooling/qmldbg_native/qqmlnativedebugconnector.cpp
+++ b/src/plugins/qmltooling/qmldbg_native/qqmlnativedebugconnector.cpp
@@ -91,6 +91,8 @@ Q_DECL_EXPORT void qt_qmlDebugObjectAvailable()
 Q_DECL_EXPORT void qt_qmlDebugClearBuffer()
 {
     responseBuffer->clear();
+    qt_qmlDebugMessageBuffer = nullptr;
+    qt_qmlDebugMessageLength = 0;
 }
 
 // Send a message to a service.
@@ -157,7 +159,8 @@ quintptr qt_qmlDebugTestHooks[] = {
     quintptr(&qt_qmlDebugSendDataToService),
     quintptr(&qt_qmlDebugEnableService),
     quintptr(&qt_qmlDebugDisableService),
-    quintptr(&qt_qmlDebugObjectAvailable)
+    quintptr(&qt_qmlDebugObjectAvailable),
+    quintptr(&qt_qmlDebugClearBuffer)
 };
 
 // In blocking mode, this will busy wait until the debugger sets block to false.
@@ -279,6 +282,8 @@ void QQmlNativeDebugConnector::announceObjectAvailability(const QString &objectT
     qt_qmlDebugMessageLength = ba.size();
     TRACE_PROTOCOL("Reporting engine availabilty");
     qt_qmlDebugObjectAvailable(); // Trigger native breakpoint.
+    qt_qmlDebugMessageBuffer = nullptr;
+    qt_qmlDebugMessageLength = 0;
 }
 
 bool QQmlNativeDebugConnector::addService(const QString &name, QQmlDebugService *service)