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, 102 insertions, 0 deletions

diff --git a/include/salhelper/refobj.hxx b/include/salhelper/refobj.hxx
new file mode 100644
index 000000000..b1b308958
--- /dev/null
+++ b/include/salhelper/refobj.hxx
@@ -0,0 +1,102 @@
+/* -*- 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 .
+ */
+
+/*
+ * This file is part of LibreOffice published API.
+ */
+
+#ifndef INCLUDED_SALHELPER_REFOBJ_HXX
+#define INCLUDED_SALHELPER_REFOBJ_HXX
+
+#include <cassert>
+
+#include "sal/types.h"
+#include "rtl/alloc.h"
+#include "osl/interlck.h"
+
+namespace salhelper
+{
+
+/** A base implementation for reference-counted objects.
+
+    @deprecated use salhelper::SimpleReferenceObject instead
+*/
+class ReferenceObject
+{
+    /** Representation.
+     */
+    oslInterlockedCount m_nReferenceCount;
+
+    ReferenceObject (const ReferenceObject&) SAL_DELETED_FUNCTION;
+    ReferenceObject& operator= (const ReferenceObject&) SAL_DELETED_FUNCTION;
+
+public:
+    /** Allocation.
+     */
+    static void* operator new (size_t n)
+    {
+        return ::rtl_allocateMemory (n);
+    }
+    static void operator delete (void* p)
+    {
+        ::rtl_freeMemory (p);
+    }
+    static void* operator new (size_t, void* p)
+    {
+        return p;
+    }
+    static void operator delete (void*, void*)
+    {}
+
+public:
+    /** Construction.
+     */
+    ReferenceObject() : m_nReferenceCount(0)
+    {}
+
+
+    void SAL_CALL acquire()
+    {
+        osl_atomic_increment(&m_nReferenceCount);
+    }
+
+    void SAL_CALL release()
+    {
+        if (osl_atomic_decrement(&m_nReferenceCount) == 0)
+        {
+            // Last reference released.
+            delete this;
+        }
+    }
+
+protected:
+    /** Destruction.
+     */
+    virtual ~ReferenceObject()
+    {
+        assert(m_nReferenceCount == 0);
+    }
+};
+
+
+} // namespace salhelper
+
+#endif /* ! INCLUDED_SALHELPER_REFOBJ_HXX */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */