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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 05:54:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 05:54:39 +0000 |
commit | 267c6f2ac71f92999e969232431ba04678e7437e (patch) | |
tree | 358c9467650e1d0a1d7227a21dac2e3d08b622b2 /include/vcl/vclreferencebase.hxx | |
parent | Initial commit. (diff) | |
download | libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip |
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/vcl/vclreferencebase.hxx')
-rw-r--r-- | include/vcl/vclreferencebase.hxx | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/include/vcl/vclreferencebase.hxx b/include/vcl/vclreferencebase.hxx new file mode 100644 index 0000000000..2ba39026a3 --- /dev/null +++ b/include/vcl/vclreferencebase.hxx @@ -0,0 +1,72 @@ +/* -*- 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_VCL_Reference_HXX +#define INCLUDED_VCL_Reference_HXX + +#include <vcl/dllapi.h> +#include <osl/interlck.h> + +class VclBuilder; + +class VCL_DLLPUBLIC VclReferenceBase +{ + mutable oslInterlockedCount mnRefCnt; + + template<typename T> friend class VclPtr; + friend class ::VclBuilder; // needed by ::delete_by_window(vcl::Window *pWindow) + +public: + void acquire() const + { + osl_atomic_increment(&mnRefCnt); + } + + void release() const + { + if (osl_atomic_decrement(&mnRefCnt) == 0) + delete this; + } +#ifdef DBG_UTIL +#ifndef _WIN32 + sal_Int32 getRefCount() const { return mnRefCnt; } +#endif +#endif + + +private: + VclReferenceBase(const VclReferenceBase&) = delete; + VclReferenceBase& operator=(const VclReferenceBase&) = delete; + + bool mbDisposed : 1; + +protected: + VclReferenceBase(); + virtual ~VclReferenceBase(); + + // This is only supposed to be called from disposeOnce + virtual void dispose(); + +public: + // This is normally supposed to be called from VclPtr::disposeAndClear + void disposeOnce(); + + bool isDisposed() const { return mbDisposed; } + +}; +#endif |