Paul Davis
1de00ab6bb
Code builds, runs and functions. Full code review still pending, and some possibly changes to organization of code within the backend is possible
81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
/*
|
|
Copyright (C) 2013 Waves Audio Ltd.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
*/
|
|
#ifndef WCREFMANAGER_H
|
|
#define WCREFMANAGER_H
|
|
|
|
|
|
#define SAFE_RELEASE(p) if (p) {p->Release(); p = NULL;}
|
|
|
|
|
|
//In order to use this interface, derive the Interface class
|
|
//from WCRefManager_Interface and derive the implementation class
|
|
//from WCRefManager_Impl. Further, in the implementation class
|
|
//declaration, place the macro WCREFMANAGER_IMPL.
|
|
class WCRefManager_Interface
|
|
{
|
|
public:
|
|
/// Constructor.
|
|
WCRefManager_Interface() {};
|
|
/// Destructor.
|
|
virtual ~WCRefManager_Interface() {};
|
|
/// Adds a reference to class.
|
|
virtual void AddRef() = 0;
|
|
/// Decrements reference count and deletes the object if reference count becomes zero.
|
|
virtual void Release() = 0;
|
|
};
|
|
|
|
///! See details at WCRefManager_Interface for how to use this.
|
|
class WCRefManager_Impl
|
|
{
|
|
public:
|
|
WCRefManager_Impl () : m_RefCount(1) {}
|
|
virtual ~WCRefManager_Impl() {}
|
|
protected:
|
|
/// Variable to store reference count.
|
|
unsigned int m_RefCount;
|
|
|
|
/// Helper to put implementation in an interface derived class, don't forget to
|
|
/// derive the impl from WCRefManager_Impl
|
|
#define WCREFMAN_IMPL \
|
|
public: \
|
|
virtual void AddRef() {m_RefCount++;} \
|
|
virtual void Release() {m_RefCount--; if (m_RefCount<=0) delete this;}
|
|
|
|
};
|
|
|
|
|
|
class WCRefManager
|
|
{
|
|
public:
|
|
/// Construcotr.
|
|
WCRefManager();
|
|
/// Destructor.
|
|
virtual ~WCRefManager();
|
|
/// Adds a reference to class.
|
|
void AddRef();
|
|
/// Decrements reference count and deletes the object if reference count becomes zero.
|
|
void Release();
|
|
|
|
private:
|
|
/// Variable to store reference count.
|
|
unsigned int m_RefCount;
|
|
};
|
|
|
|
#endif // WCREFMANAGER_H
|