WinStd
Additional templates and function helpers for Microsoft Windows using Standard C++ classes
Public Member Functions | Protected Member Functions | List of all members
winstd::dplhandle< T, INVAL > Class Template Referenceabstract

Base abstract template class to support object handle keeping for objects that support trivial handle duplication. More...

#include <WinStd/Common.h>

Inheritance diagram for winstd::dplhandle< T, INVAL >:
winstd::handle< T, INVAL >

Public Member Functions

 dplhandle () noexcept
 Initializes a new class instance with the object handle set to INVAL.
 
 dplhandle (handle_type h) noexcept
 Initializes a new class instance with an already available object handle. More...
 
 dplhandle (const dplhandle< handle_type, INVAL > &h) noexcept
 Copy constructor. More...
 
 dplhandle (dplhandle< handle_type, INVAL > &&h) noexcept
 Move constructor. More...
 
dplhandle< handle_type, INVAL > & operator= (handle_type h) noexcept
 Attaches already available object handle. More...
 
dplhandle< handle_type, INVAL > & operator= (const dplhandle< handle_type, INVAL > &h) noexcept
 Duplicates the object. More...
 
dplhandle< handle_type, INVAL > & operator= (dplhandle< handle_type, INVAL > &&h) noexcept
 Moves the object. More...
 
handle_type duplicate () const
 Duplicates and returns a new object handle. More...
 
bool attach_duplicated (handle_type h)
 Duplicates an object handle and sets a new object handle. More...
 
- Public Member Functions inherited from winstd::handle< T, INVAL >
 handle () noexcept
 Initializes a new class instance with the object handle set to INVAL.
 
 handle (handle_type h) noexcept
 Initializes a new class instance with an already available object handle. More...
 
 handle (handle< handle_type, INVAL > &&h) noexcept
 Move constructor. More...
 
handle< handle_type, INVAL > & operator= (handle_type h) noexcept
 Attaches already available object handle. More...
 
handle< handle_type, INVAL > & operator= (handle< handle_type, INVAL > &&h) noexcept
 Move assignment. More...
 
 operator handle_type () const
 Auto-typecasting operator. More...
 
handle_type *& operator* () const
 Returns the object handle value when the object handle is a pointer to a value (class, struct, etc.). More...
 
handle_typeoperator& ()
 Returns the object handle reference. More...
 
handle_type operator-> () const
 Provides object handle member access when the object handle is a pointer to a class or struct. More...
 
bool operator! () const
 Tests if the object handle is INVAL. More...
 
bool operator< (handle_type h) const
 Is handle less than? More...
 
bool operator<= (handle_type h) const
 Is handle less than or equal to? More...
 
bool operator>= (handle_type h) const
 Is handle greater than or equal to? More...
 
bool operator> (handle_type h) const
 Is handle greater than? More...
 
bool operator!= (handle_type h) const
 Is handle not equal to? More...
 
bool operator== (handle_type h) const
 Is handle equal to? More...
 
void attach (handle_type h) noexcept
 Sets a new object handle for the class. More...
 
handle_type detach ()
 Dismisses the object handle from this class. More...
 
void free ()
 Destroys the object.
 

Protected Member Functions

virtual handle_type duplicate_internal (handle_type h) const noexcept=0
 Abstract member function that must be implemented by child classes to do the actual object handle duplication. More...
 
- Protected Member Functions inherited from winstd::handle< T, INVAL >
virtual void free_internal () noexcept=0
 Abstract member function that must be implemented by child classes to do the actual object destruction. More...
 

Additional Inherited Members

- Public Types inherited from winstd::handle< T, INVAL >
typedef T handle_type
 Datatype of the object handle this template class handles.
 
- Static Public Attributes inherited from winstd::handle< T, INVAL >
static const T invalid = INVAL
 Invalid handle value.
 
- Protected Attributes inherited from winstd::handle< T, INVAL >
handle_type m_h
 Object handle.
 

Detailed Description

template<class T, T INVAL>
class winstd::dplhandle< T, INVAL >

Base abstract template class to support object handle keeping for objects that support trivial handle duplication.

Constructor & Destructor Documentation

◆ dplhandle() [1/3]

template<class T , T INVAL>
winstd::dplhandle< T, INVAL >::dplhandle ( handle_type  h)
inlinenoexcept

Initializes a new class instance with an already available object handle.

Parameters
[in]hInitial object handle value

◆ dplhandle() [2/3]

template<class T , T INVAL>
winstd::dplhandle< T, INVAL >::dplhandle ( const dplhandle< handle_type, INVAL > &  h)
inlinenoexcept

Copy constructor.

Parameters
[in,out]hA reference of another object

◆ dplhandle() [3/3]

template<class T , T INVAL>
winstd::dplhandle< T, INVAL >::dplhandle ( dplhandle< handle_type, INVAL > &&  h)
inlinenoexcept

Move constructor.

Parameters
[in,out]hA rvalue reference of another object

Member Function Documentation

◆ attach_duplicated()

template<class T , T INVAL>
bool winstd::dplhandle< T, INVAL >::attach_duplicated ( handle_type  h)
inline

Duplicates an object handle and sets a new object handle.

Parameters
[in]hObject handle of existing object
Returns
  • true when duplication succeeds;
  • false when duplication fails. In case of failure obtaining the extended error information is object type specific (for example: GetLastError()).

◆ duplicate()

template<class T , T INVAL>
handle_type winstd::dplhandle< T, INVAL >::duplicate ( ) const
inline

Duplicates and returns a new object handle.

Returns
Duplicated object handle

◆ duplicate_internal()

template<class T , T INVAL>
virtual handle_type winstd::dplhandle< T, INVAL >::duplicate_internal ( handle_type  h) const
protectedpure virtualnoexcept

Abstract member function that must be implemented by child classes to do the actual object handle duplication.

Parameters
[in]hObject handle of existing object
Returns
Duplicated object handle

Implemented in winstd::com_obj< T >, winstd::bstr, winstd::cert_context, winstd::cert_chain_context, winstd::crypt_hash, winstd::crypt_key, and winstd::eap_packet.

◆ operator=() [1/3]

template<class T , T INVAL>
dplhandle< handle_type, INVAL > & winstd::dplhandle< T, INVAL >::operator= ( const dplhandle< handle_type, INVAL > &  h)
inlinenoexcept

Duplicates the object.

Parameters
[in]hObject

◆ operator=() [2/3]

template<class T , T INVAL>
dplhandle< handle_type, INVAL > & winstd::dplhandle< T, INVAL >::operator= ( dplhandle< handle_type, INVAL > &&  h)
inlinenoexcept

Moves the object.

Parameters
[in,out]hA rvalue reference of another object

◆ operator=() [3/3]

template<class T , T INVAL>
dplhandle< handle_type, INVAL > & winstd::dplhandle< T, INVAL >::operator= ( handle_type  h)
inlinenoexcept

Attaches already available object handle.

Parameters
[in]hObject handle value

The documentation for this class was generated from the following file: