Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 285 insertions, 0 deletions

diff --git a/cppuhelper/source/implbase.cxx b/cppuhelper/source/implbase.cxx
new file mode 100644
index 000000000..0673ce692
--- /dev/null
+++ b/cppuhelper/source/implbase.cxx
@@ -0,0 +1,285 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <cppuhelper/compbase_ex.hxx>
+#include <cppuhelper/exc_hlp.hxx>
+#include <osl/diagnose.h>
+#include <sal/log.hxx>
+
+#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
+#include <com/sun/star/uno/RuntimeException.hpp>
+
+using namespace ::osl;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+
+
+namespace cppu
+{
+
+// WeakComponentImplHelperBase
+
+WeakComponentImplHelperBase::WeakComponentImplHelperBase( Mutex & rMutex )
+    : rBHelper( rMutex )
+{
+}
+
+WeakComponentImplHelperBase::~WeakComponentImplHelperBase()
+{
+}
+
+void WeakComponentImplHelperBase::disposing()
+{
+}
+
+Any WeakComponentImplHelperBase::queryInterface( Type const & rType )
+{
+    if (rType == cppu::UnoType<lang::XComponent>::get())
+    {
+        void * p = static_cast< lang::XComponent * >( this );
+        return Any( &p, rType );
+    }
+    return OWeakObject::queryInterface( rType );
+}
+
+void WeakComponentImplHelperBase::acquire()
+    noexcept
+{
+    OWeakObject::acquire();
+}
+
+void WeakComponentImplHelperBase::release()
+    noexcept
+{
+    if (osl_atomic_decrement( &m_refCount ) != 0)
+        return;
+
+    // ensure no other references are created, via the weak connection point, from now on
+    disposeWeakConnectionPoint();
+    // restore reference count:
+    osl_atomic_increment( &m_refCount );
+    if (! rBHelper.bDisposed) {
+        try {
+            dispose();
+        }
+        catch (RuntimeException const& exc) { // don't break throw ()
+            SAL_WARN( "cppuhelper", exc );
+        }
+        OSL_ASSERT( rBHelper.bDisposed );
+    }
+    OWeakObject::release();
+}
+
+void WeakComponentImplHelperBase::dispose()
+{
+    ClearableMutexGuard aGuard( rBHelper.rMutex );
+    if (rBHelper.bDisposed || rBHelper.bInDispose)
+        return;
+
+    rBHelper.bInDispose = true;
+    aGuard.clear();
+    try
+    {
+        // side effect: keeping a reference to this
+        lang::EventObject aEvt( static_cast< OWeakObject * >( this ) );
+        try
+        {
+            rBHelper.aLC.disposeAndClear( aEvt );
+            disposing();
+        }
+        catch (...)
+        {
+            MutexGuard aGuard2( rBHelper.rMutex );
+            // bDisposed and bInDispose must be set in this order:
+            rBHelper.bDisposed = true;
+            rBHelper.bInDispose = false;
+            throw;
+        }
+        MutexGuard aGuard2( rBHelper.rMutex );
+        // bDisposed and bInDispose must be set in this order:
+        rBHelper.bDisposed = true;
+        rBHelper.bInDispose = false;
+    }
+    catch (RuntimeException &)
+    {
+        throw;
+    }
+    catch (Exception & exc)
+    {
+        css::uno::Any anyEx = cppu::getCaughtException();
+        throw lang::WrappedTargetRuntimeException(
+            "unexpected UNO exception caught: " + exc.Message,
+            nullptr, anyEx );
+    }
+}
+
+void WeakComponentImplHelperBase::addEventListener(
+    Reference< lang::XEventListener > const & xListener )
+{
+    ClearableMutexGuard aGuard( rBHelper.rMutex );
+    if (rBHelper.bDisposed || rBHelper.bInDispose)
+    {
+        aGuard.clear();
+        lang::EventObject aEvt( static_cast< OWeakObject * >( this ) );
+        xListener->disposing( aEvt );
+    }
+    else
+    {
+        rBHelper.addListener( cppu::UnoType<decltype(xListener)>::get(), xListener );
+    }
+}
+
+void WeakComponentImplHelperBase::removeEventListener(
+    Reference< lang::XEventListener > const & xListener )
+{
+    rBHelper.removeListener( cppu::UnoType<decltype(xListener)>::get(), xListener );
+}
+
+// WeakAggComponentImplHelperBase
+
+WeakAggComponentImplHelperBase::WeakAggComponentImplHelperBase( Mutex & rMutex )
+    : rBHelper( rMutex )
+{
+}
+
+WeakAggComponentImplHelperBase::~WeakAggComponentImplHelperBase()
+{
+}
+
+void WeakAggComponentImplHelperBase::disposing()
+{
+}
+
+Any WeakAggComponentImplHelperBase::queryInterface( Type const & rType )
+{
+    return OWeakAggObject::queryInterface( rType );
+}
+
+Any WeakAggComponentImplHelperBase::queryAggregation( Type const & rType )
+{
+    if (rType == cppu::UnoType<lang::XComponent>::get())
+    {
+        void * p = static_cast< lang::XComponent * >( this );
+        return Any( &p, rType );
+    }
+    return OWeakAggObject::queryAggregation( rType );
+}
+
+void WeakAggComponentImplHelperBase::acquire()
+    noexcept
+{
+    OWeakAggObject::acquire();
+}
+
+void WeakAggComponentImplHelperBase::release()
+    noexcept
+{
+    Reference<XInterface> const xDelegator_(xDelegator);
+    if (xDelegator_.is()) {
+        OWeakAggObject::release();
+    }
+    else if (osl_atomic_decrement( &m_refCount ) == 0) {
+        // ensure no other references are created, via the weak connection point, from now on
+        disposeWeakConnectionPoint();
+        // restore reference count:
+        osl_atomic_increment( &m_refCount );
+        if (! rBHelper.bDisposed) {
+            try {
+                dispose();
+            }
+            catch (RuntimeException const& exc) { // don't break throw ()
+                SAL_WARN( "cppuhelper", exc );
+            }
+            OSL_ASSERT( rBHelper.bDisposed );
+        }
+        OWeakAggObject::release();
+    }
+}
+
+void WeakAggComponentImplHelperBase::dispose()
+{
+    ClearableMutexGuard aGuard( rBHelper.rMutex );
+    if (rBHelper.bDisposed || rBHelper.bInDispose)
+        return;
+
+    rBHelper.bInDispose = true;
+    aGuard.clear();
+    try
+    {
+        // side effect: keeping a reference to this
+        lang::EventObject aEvt( static_cast< OWeakObject * >( this ) );
+        try
+        {
+            rBHelper.aLC.disposeAndClear( aEvt );
+            disposing();
+        }
+        catch (...)
+        {
+            MutexGuard aGuard2( rBHelper.rMutex );
+            // bDisposed and bInDispose must be set in this order:
+            rBHelper.bDisposed = true;
+            rBHelper.bInDispose = false;
+            throw;
+        }
+        MutexGuard aGuard2( rBHelper.rMutex );
+        // bDisposed and bInDispose must be set in this order:
+        rBHelper.bDisposed = true;
+        rBHelper.bInDispose = false;
+    }
+    catch (RuntimeException &)
+    {
+        throw;
+    }
+    catch (Exception & exc)
+    {
+        css::uno::Any anyEx = cppu::getCaughtException();
+        throw lang::WrappedTargetRuntimeException(
+            "unexpected UNO exception caught: " + exc.Message,
+            nullptr, anyEx );
+    }
+}
+
+void WeakAggComponentImplHelperBase::addEventListener(
+    Reference< lang::XEventListener > const & xListener )
+{
+    ClearableMutexGuard aGuard( rBHelper.rMutex );
+    if (rBHelper.bDisposed || rBHelper.bInDispose)
+    {
+        aGuard.clear();
+        lang::EventObject aEvt( static_cast< OWeakObject * >( this ) );
+        xListener->disposing( aEvt );
+    }
+    else
+    {
+        rBHelper.addListener( cppu::UnoType<decltype(xListener)>::get(), xListener );
+    }
+}
+
+void WeakAggComponentImplHelperBase::removeEventListener(
+    Reference< lang::XEventListener > const & xListener )
+{
+    // if we have disposed, then we have cleared the list already
+    MutexGuard aGuard( rBHelper.rMutex );
+    if (!rBHelper.bDisposed)
+        rBHelper.removeListener( cppu::UnoType<decltype(xListener)>::get(), xListener );
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */