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Diffstat (limited to 'o3tl/qa/cow_wrapper_clients.hxx')
| -rw-r--r-- | o3tl/qa/cow_wrapper_clients.hxx | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/o3tl/qa/cow_wrapper_clients.hxx b/o3tl/qa/cow_wrapper_clients.hxx new file mode 100644 index 000000000..36d77553b --- /dev/null +++ b/o3tl/qa/cow_wrapper_clients.hxx @@ -0,0 +1,210 @@ +/* -*- 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_O3TL_QA_COW_WRAPPER_CLIENTS_HXX +#define INCLUDED_O3TL_QA_COW_WRAPPER_CLIENTS_HXX + +#include <o3tl/cow_wrapper.hxx> +#include <cppunit/extensions/HelperMacros.h> +#include <assert.h> + +/* Definition of Cow_Wrapper_Clients classes */ + +namespace o3tltests { + +/** This is a header and a separate compilation unit on purpose - + cow_wrapper needs destructor, copy constructor and assignment + operator to be outline, when pimpl idiom is used + */ + +/// test non-opaque impl type +class cow_wrapper_client1 +{ +public: + cow_wrapper_client1() : maImpl() {} + explicit cow_wrapper_client1( int nVal ) : maImpl(nVal) {} + + void modify( int nVal ) { *maImpl = nVal; } + int queryUnmodified() const { return *maImpl; } + + void makeUnique() { maImpl.make_unique(); } + bool is_unique() const { return maImpl.is_unique(); } + oslInterlockedCount use_count() const { return maImpl.use_count(); } + void swap( cow_wrapper_client1& r ) { o3tl::swap(maImpl, r.maImpl); } + + bool operator==( const cow_wrapper_client1& rRHS ) const { return maImpl == rRHS.maImpl; } + bool operator!=( const cow_wrapper_client1& rRHS ) const { return maImpl != rRHS.maImpl; } + bool operator<( const cow_wrapper_client1& rRHS ) const { return maImpl < rRHS.maImpl; } + +private: + o3tl::cow_wrapper< int > maImpl; +}; + + +class cow_wrapper_client2_impl; + +/** test opaque impl type - need to explicitly declare lifetime + methods + */ +class cow_wrapper_client2 +{ +public: + cow_wrapper_client2(); + explicit cow_wrapper_client2( int nVal ); + ~cow_wrapper_client2(); + + cow_wrapper_client2( const cow_wrapper_client2& ); + cow_wrapper_client2(cow_wrapper_client2&&) noexcept; + cow_wrapper_client2& operator=( const cow_wrapper_client2& ); + cow_wrapper_client2& operator=(cow_wrapper_client2&&) noexcept; + + void modify( int nVal ); + int queryUnmodified() const; + + void makeUnique(); + bool is_unique() const; + oslInterlockedCount use_count() const; + void swap( cow_wrapper_client2& r ); + + bool operator==( const cow_wrapper_client2& rRHS ) const; + bool operator!=( const cow_wrapper_client2& rRHS ) const; + bool operator<( const cow_wrapper_client2& rRHS ) const; + +private: + o3tl::cow_wrapper< cow_wrapper_client2_impl > maImpl; +}; + +/** test MT-safe cow_wrapper - basically the same as + cow_wrapper_client2, only with different refcounting policy + */ +class cow_wrapper_client3 +{ +public: + cow_wrapper_client3(); + explicit cow_wrapper_client3( int nVal ); + ~cow_wrapper_client3(); + + cow_wrapper_client3( const cow_wrapper_client3& ); + cow_wrapper_client3(cow_wrapper_client3&&) noexcept; + cow_wrapper_client3& operator=( const cow_wrapper_client3& ); + cow_wrapper_client3& operator=(cow_wrapper_client3&&) noexcept; + + void modify( int nVal ); + int queryUnmodified() const; + + void makeUnique(); + bool is_unique() const; + oslInterlockedCount use_count() const; + void swap( cow_wrapper_client3& r ); + + bool operator==( const cow_wrapper_client3& rRHS ) const; + bool operator!=( const cow_wrapper_client3& rRHS ) const; + bool operator<( const cow_wrapper_client3& rRHS ) const; + +private: + o3tl::cow_wrapper< cow_wrapper_client2_impl, o3tl::ThreadSafeRefCountingPolicy > maImpl; +}; + +/** test default-object comparison - have default-stored-client4 share + the same static impl instance, check if isDefault does the right + thing + */ +class cow_wrapper_client4 +{ +public: + cow_wrapper_client4(); + explicit cow_wrapper_client4(int); + ~cow_wrapper_client4(); + + cow_wrapper_client4( const cow_wrapper_client4& ); + cow_wrapper_client4& operator=( const cow_wrapper_client4& ); + + bool is_default() const; + + bool operator==( const cow_wrapper_client4& rRHS ) const; + bool operator!=( const cow_wrapper_client4& rRHS ) const; + bool operator<( const cow_wrapper_client4& rRHS ) const; + +private: + o3tl::cow_wrapper< int > maImpl; +}; + +// singleton ref-counting policy used to keep track of when +// incrementing and decrementing occurs +struct BogusRefCountPolicy +{ + static bool s_bShouldIncrement; + static bool s_bShouldDecrement; + static sal_uInt32 s_nEndOfScope; + typedef sal_uInt32 ref_count_t; + static void incrementCount( ref_count_t& rCount ) { + assert(s_bShouldIncrement && "Ref-counting policy incremented when it should not have."); + ++rCount; + s_bShouldIncrement = false; + } + static bool decrementCount( ref_count_t& rCount ) { + assert((s_nEndOfScope || s_bShouldDecrement) && "Ref-counting policy decremented when it should not have."); + if(s_nEndOfScope) + { + --rCount; + --s_nEndOfScope; + } + else if(s_bShouldDecrement) + { + --rCount; + s_bShouldDecrement = false; + } + return rCount != 0; + } +}; + +class cow_wrapper_client5 +{ +public: + cow_wrapper_client5(); + explicit cow_wrapper_client5(int); + ~cow_wrapper_client5(); + + cow_wrapper_client5( const cow_wrapper_client5& ); + cow_wrapper_client5(cow_wrapper_client5&&) noexcept; + cow_wrapper_client5& operator=( const cow_wrapper_client5& ); + cow_wrapper_client5& operator=(cow_wrapper_client5&&) noexcept; + + int queryUnmodified() const { return *maImpl; } + sal_uInt32 use_count() const { return maImpl.use_count(); } + + bool operator==( const cow_wrapper_client5& rRHS ) const; + bool operator!=( const cow_wrapper_client5& rRHS ) const; + +private: + o3tl::cow_wrapper< int, BogusRefCountPolicy > maImpl; +}; + +template< typename charT, typename traits > +inline std::basic_ostream<charT, traits> & operator <<( + std::basic_ostream<charT, traits> & stream, const cow_wrapper_client5& client ) +{ + return stream << client.queryUnmodified(); +} + +} // namespace o3tltests + +#endif // INCLUDED_O3TL_QA_COW_WRAPPER_CLIENTS_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |