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#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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