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Diffstat (limited to 'include/comphelper/scopeguard.hxx')
-rw-r--r-- | include/comphelper/scopeguard.hxx | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/include/comphelper/scopeguard.hxx b/include/comphelper/scopeguard.hxx new file mode 100644 index 000000000000..5bc2aafaa781 --- /dev/null +++ b/include/comphelper/scopeguard.hxx @@ -0,0 +1,64 @@ +/* -*- 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_COMPHELPER_SCOPEGUARD_HXX +#define INCLUDED_COMPHELPER_SCOPEGUARD_HXX + +#include "comphelper/comphelperdllapi.h" +#include "boost/function.hpp" +#include "boost/noncopyable.hpp" +#include "boost/bind.hpp" + +namespace comphelper { + +/** ScopeGuard to ease writing exception-safe code. + */ +class COMPHELPER_DLLPUBLIC ScopeGuard : private ::boost::noncopyable + // noncopyable until we have + // good reasons... +{ +public: + enum exc_handling { IGNORE_EXCEPTIONS, ALLOW_EXCEPTIONS }; + + /** @param func function object to be executed in dtor + @param excHandling switches whether thrown exceptions in dtor will be + silently ignored (but OSL_ asserted) + */ + template <typename func_type> + explicit ScopeGuard( func_type const & func, + exc_handling excHandling = IGNORE_EXCEPTIONS ) + : m_func( func ), m_excHandling( excHandling ) {} + + ~ScopeGuard(); + + /** Dismisses the scope guard, i.e. the function won't + be executed. + */ + void dismiss(); + +private: + ::boost::function0<void> m_func; // preferring portable syntax + exc_handling const m_excHandling; +}; + +} // namespace comphelper + +#endif // ! defined(INCLUDED_COMPHELPER_SCOPEGUARD_HXX) + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |