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/* -*- 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 <sal/types.h>
#include <o3tl/cow_wrapper.hxx>
#include <assert.h>
#include <iostream>
/* 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(); }
int 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;
int 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;
int 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;
}
static std::size_t getCount( ref_count_t& rCount) { return rCount; }
};
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
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