Port to QRecursiveMutex

Recursive and non-recursive mutexes are distinct types in Qt6.

src/backends/libinput/connection.cpp

@@ -126,7 +126,6 @@ Connection::Connection(Context *input, QObject *parent)
     : QObject(parent)
     , m_input(input)
     , m_notifier(nullptr)
-    , m_mutex(QMutex::Recursive)
 {
     Q_ASSERT(m_input);
     // need to connect to KGlobalSettings as the mouse KCM does not emit a dedicated signal

src/backends/libinput/connection.h

@@ -16,7 +16,7 @@
 #include <QObject>
 #include <QPointer>
 #include <QSize>
-#include <QMutex>
+#include <QRecursiveMutex>
 #include <QVector>
 #include <QStringList>
 
@@ -67,7 +67,7 @@ private:
     void applyScreenToDevice(Device *device);
     Context *m_input;
     QSocketNotifier *m_notifier;
-    QMutex m_mutex;
+    QRecursiveMutex m_mutex;
     QVector<Event*> m_eventQueue;
     QVector<Device*> m_devices;
     KSharedConfigPtr m_config;

src/scripting/scripting.cpp

@@ -626,7 +626,7 @@ KWin::Scripting *KWin::Scripting::create(QObject *parent)
 
 KWin::Scripting::Scripting(QObject *parent)
     : QObject(parent)
-    , m_scriptsLock(new QMutex(QMutex::Recursive))
+    , m_scriptsLock(new QRecursiveMutex)
     , m_qmlEngine(new QQmlEngine(this))
     , m_declarativeScriptSharedContext(new QQmlContext(m_qmlEngine, this))
     , m_workspaceWrapper(new QtScriptWorkspaceWrapper(this))

src/scripting/scripting.h

@@ -28,7 +28,7 @@ class QQmlContext;
 class QQmlEngine;
 class QAction;
 class QMenu;
-class QMutex;
+class QRecursiveMutex;
 class QQuickWindow;
 class KConfigGroup;
 
@@ -315,7 +315,7 @@ private:
     /**
      * Lock to protect the scripts member variable.
      */
-    QScopedPointer<QMutex> m_scriptsLock;
+    QScopedPointer<QRecursiveMutex> m_scriptsLock;
 
     // Preferably call ONLY at load time
     void runScripts();