summaryrefslogtreecommitdiffstats
path: root/sd/inc/helper
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--sd/inc/helper/simplereferencecomponent.hxx69
1 files changed, 69 insertions, 0 deletions
diff --git a/sd/inc/helper/simplereferencecomponent.hxx b/sd/inc/helper/simplereferencecomponent.hxx
new file mode 100644
index 000000000..53ad24a9e
--- /dev/null
+++ b/sd/inc/helper/simplereferencecomponent.hxx
@@ -0,0 +1,69 @@
+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_SD_INC_HELPER_SIMPLEREFERENCECOMPONENT_HXX
+#define INCLUDED_SD_INC_HELPER_SIMPLEREFERENCECOMPONENT_HXX
+
+#include <osl/interlck.h>
+
+#include <sddllapi.h>
+
+namespace sd {
+
+/** A simple base implementation for reference-counted components.
+ acts like sal::SimpleReferenceObject but calls the virtual disposing()
+ methods before the ref count switches from 1 to zero.
+ */
+class SimpleReferenceComponent
+{
+public:
+ SimpleReferenceComponent();
+
+ /** @ATTENTION
+ The results are undefined if, for any individual instance of
+ SimpleReferenceComponent, the total number of calls to acquire() exceeds
+ the total number of calls to release() by a platform dependent amount
+ (which, hopefully, is quite large).
+ */
+ void acquire();
+ void release();
+
+ void Dispose();
+
+ bool isDisposed() const { return mbDisposed; }
+
+protected:
+ virtual void disposing();
+
+ virtual ~SimpleReferenceComponent();
+
+private:
+ oslInterlockedCount m_nCount;
+
+ SimpleReferenceComponent(SimpleReferenceComponent const &) = delete;
+ void operator =(SimpleReferenceComponent const &) = delete;
+
+ bool mbDisposed;
+};
+
+}
+
+#endif // _SALHELPER_SimpleReferenceComponent_HXX_
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */