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, 223 insertions, 0 deletions

diff --git a/cppuhelper/source/component.cxx b/cppuhelper/source/component.cxx
new file mode 100644
index 000000000..369e2ead7
--- /dev/null
+++ b/cppuhelper/source/component.cxx
@@ -0,0 +1,223 @@
+/* -*- 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 <osl/diagnose.h>
+#include <sal/log.hxx>
+#include <cppuhelper/component.hxx>
+#include <cppuhelper/exc_hlp.hxx>
+#include <cppuhelper/typeprovider.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;
+using namespace com::sun::star::lang;
+
+namespace cppu
+{
+
+
+//  class OComponentHelper
+
+
+OComponentHelper::OComponentHelper( Mutex & rMutex )
+    : rBHelper( rMutex )
+{
+}
+OComponentHelper::~OComponentHelper()
+{
+}
+
+Any OComponentHelper::queryInterface( Type const & rType )
+{
+    return OWeakAggObject::queryInterface( rType );
+}
+Any OComponentHelper::queryAggregation( Type const & rType )
+{
+    if (rType == cppu::UnoType<lang::XComponent>::get())
+    {
+        void * p = static_cast< lang::XComponent * >( this );
+        return Any( &p, rType );
+    }
+    if (rType == cppu::UnoType<lang::XTypeProvider>::get())
+    {
+        void * p = static_cast< lang::XTypeProvider * >( this );
+        return Any( &p, rType );
+    }
+    return OWeakAggObject::queryAggregation( rType );
+}
+void OComponentHelper::acquire() noexcept
+{
+    OWeakAggObject::acquire();
+}
+
+void OComponentHelper::release() noexcept
+{
+    Reference<XInterface > x( xDelegator );
+    if (! x.is())
+    {
+        if (osl_atomic_decrement( &m_refCount ) == 0)
+        {
+            if (! rBHelper.bDisposed)
+            {
+                // *before* again incrementing our ref count, ensure that our weak connection point
+                // will not create references to us anymore (via XAdapter::queryAdapted)
+                disposeWeakConnectionPoint();
+
+                Reference<XInterface > xHoldAlive( *this );
+                // First dispose
+                try
+                {
+                    dispose();
+                }
+                catch (css::uno::RuntimeException & exc)
+                {
+                    // release should not throw exceptions
+                    SAL_WARN( "cppuhelper", exc );
+                }
+
+                // only the alive ref holds the object
+                OSL_ASSERT( m_refCount == 1 );
+                // destroy the object if xHoldAlive decrement the refcount to 0
+                return;
+            }
+        }
+        // restore the reference count
+        osl_atomic_increment( &m_refCount );
+    }
+    OWeakAggObject::release();
+}
+
+Sequence< Type > OComponentHelper::getTypes()
+{
+    static OTypeCollection s_aTypes(
+        cppu::UnoType<lang::XComponent>::get(),
+        cppu::UnoType<lang::XTypeProvider>::get(),
+        cppu::UnoType<XAggregation>::get(),
+        cppu::UnoType<XWeak>::get() );
+
+    return s_aTypes.getTypes();
+}
+
+// XComponent
+void OComponentHelper::disposing()
+{
+}
+
+// XComponent
+void OComponentHelper::dispose()
+{
+    // An frequently programming error is to release the last
+    // reference to this object in the disposing message.
+    // Make it robust, hold a self Reference.
+    Reference<XComponent > xSelf( this );
+
+    // Guard dispose against multiple threading
+    // Remark: It is an error to call dispose more than once
+    bool bDoDispose = false;
+    {
+        MutexGuard aGuard( rBHelper.rMutex );
+        if( !rBHelper.bDisposed && !rBHelper.bInDispose )
+        {
+            // only one call go into this section
+            rBHelper.bInDispose = true;
+            bDoDispose = true;
+        }
+    }
+
+    // Do not hold the mutex because we are broadcasting
+    if( bDoDispose )
+    {
+        // Create an event with this as sender
+        try
+        {
+            try
+            {
+                Reference<XInterface > xSource(
+                    Reference<XInterface >::query( static_cast<XComponent *>(this) ) );
+                EventObject aEvt;
+                aEvt.Source = xSource;
+                // inform all listeners to release this object
+                // The listener container are automatically cleared
+                rBHelper.aLC.disposeAndClear( aEvt );
+                // notify subclasses to do their dispose
+                disposing();
+            }
+            catch (...)
+            {
+                MutexGuard aGuard( rBHelper.rMutex );
+                // bDispose and bInDisposing must be set in this order:
+                rBHelper.bDisposed = true;
+                rBHelper.bInDispose = false;
+                throw;
+            }
+            MutexGuard aGuard( rBHelper.rMutex );
+            // bDispose and bInDisposing 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 );
+        }
+    }
+    else
+    {
+        // in a multithreaded environment, it can't be avoided
+        // that dispose is called twice.
+        // However this condition is traced, because it MAY indicate an error.
+        SAL_WARN("cppuhelper",  "OComponentHelper::dispose() - dispose called twice" );
+    }
+}
+
+// XComponent
+void OComponentHelper::addEventListener(
+    const Reference<XEventListener > & rxListener )
+{
+    ClearableMutexGuard aGuard( rBHelper.rMutex );
+    if (rBHelper.bDisposed || rBHelper.bInDispose)
+    {
+        aGuard.clear();
+        Reference< XInterface > x( static_cast<XComponent *>(this), UNO_QUERY );
+        rxListener->disposing( EventObject( x ) );
+    }
+    else
+    {
+        rBHelper.addListener( cppu::UnoType<decltype(rxListener)>::get(), rxListener );
+    }
+}
+
+// XComponent
+void OComponentHelper::removeEventListener(
+    const Reference<XEventListener > & rxListener )
+{
+    rBHelper.removeListener( cppu::UnoType<decltype(rxListener)>::get(), rxListener );
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */