blocxx
src
blocxx
RefCountedPimpl.hpp
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/*******************************************************************************
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* Copyright (C) 2005, Quest Software, Inc. All rights reserved.
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* Copyright (C) 2006, Novell, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Quest Software, Inc.,
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* nor Novell, Inc.,
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* nor the names of its contributors or employees may be used to
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*******************************************************************************/
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#ifndef REF_COUNTED_PIMPL_HPP
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#define REF_COUNTED_PIMPL_HPP
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#include "blocxx/BLOCXX_config.h"
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#include "
blocxx/IntrusiveCountableBase.hpp
"
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#include "
blocxx/IntrusiveReference.hpp
"
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namespace
BLOCXX_NAMESPACE
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{
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template
<
typename
Impl>
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class
RefCountedPimpl
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{
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protected
:
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// These member functions will only get instantiated where they are
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// used -- in the implementation code for the class. Thus the full
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// definition of Impl need not be visible in code that merely uses
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// a class derived from RefCountedPimpl<Impl>.
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// Unfortunately this is not the case for any classes which need
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// to be exported from a DLL (using __declspec(dllexport)) on
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// windows. If that is the case, then the definition does need
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// to be visible because every member function of the exported
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// class and it's base classes will be instantiated.
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//
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RefCountedPimpl
()
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:
m_impl
(0)
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{
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}
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//
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RefCountedPimpl
(Impl * p)
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:
m_impl
(p)
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{
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}
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//
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RefCountedPimpl
(
IntrusiveCountableBase
* p)
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:
m_impl
(p)
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{
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}
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//
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Impl *
pimpl
()
const
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{
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return
static_cast<
Impl *
>
(
m_impl
.getPtr());
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}
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//
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bool
null
()
const
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{
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return
!
m_impl
;
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}
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private
:
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// IntrusiveCountableBase is used instead of Impl because we want to
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// be able to hide the full definition of Impl while still having
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// the implicit copy ctor, copy assignment, and dtor available.
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//
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IntrusiveReference<IntrusiveCountableBase>
m_impl
;
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};
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}
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#endif
IntrusiveCountableBase.hpp
IntrusiveReference.hpp
BLOCXX_NAMESPACE::IntrusiveCountableBase
Definition
IntrusiveCountableBase.hpp:67
BLOCXX_NAMESPACE::IntrusiveReference
Definition
IntrusiveReference.hpp:76
BLOCXX_NAMESPACE::RefCountedPimpl
PURPOSE: Make it easy to define immutable classes or handle classes, making it inexpensive to copy th...
Definition
RefCountedPimpl.hpp:65
BLOCXX_NAMESPACE::RefCountedPimpl::m_impl
IntrusiveReference< IntrusiveCountableBase > m_impl
Definition
RefCountedPimpl.hpp:118
BLOCXX_NAMESPACE::RefCountedPimpl::RefCountedPimpl
RefCountedPimpl()
Definition
RefCountedPimpl.hpp:79
BLOCXX_NAMESPACE::RefCountedPimpl::RefCountedPimpl
RefCountedPimpl(Impl *p)
Definition
RefCountedPimpl.hpp:86
BLOCXX_NAMESPACE::RefCountedPimpl::pimpl
Impl * pimpl() const
Definition
RefCountedPimpl.hpp:101
BLOCXX_NAMESPACE::RefCountedPimpl::RefCountedPimpl
RefCountedPimpl(IntrusiveCountableBase *p)
Definition
RefCountedPimpl.hpp:94
BLOCXX_NAMESPACE::RefCountedPimpl::null
bool null() const
Definition
RefCountedPimpl.hpp:108
BLOCXX_NAMESPACE
Taken from RFC 1321.
Definition
AppenderLogger.cpp:48
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