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Memutil: remove some unused code.

This commit is contained in:
Brecht Van Lommel 2015-12-11 01:46:28 +01:00
parent c7122b5391
commit 37c6a207ce
4 changed files with 0 additions and 607 deletions
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3
intern/memutil/CMakeLists.txt
View File

@ -39,11 +39,8 @@ set(SRC
MEM_Allocator.h
MEM_CacheLimiter.h
MEM_CacheLimiterC-Api.h
MEM_NonCopyable.h
MEM_RefCountPtr.h
MEM_RefCounted.h
MEM_RefCountedC-Api.h
MEM_SmartPtr.h
)
blender_add_lib(bf_intern_memutil "${SRC}" "${INC}" "${INC_SYS}")

62
intern/memutil/MEM_NonCopyable.h
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@ -1,62 +0,0 @@
/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file memutil/MEM_NonCopyable.h
* \ingroup memutil
*/
/**
* @file MEM_NonCopyable.h
* Declaration of MEM_NonCopyable class.
*/
#ifndef __MEM_NONCOPYABLE_H__
#define __MEM_NONCOPYABLE_H__
/**
* Simple class that makes sure sub classes cannot
* generate standard copy constructors.
* If you want to make sure that your class does
* not have any of these cheesy hidden constructors
* inherit from this class.
*/
class MEM_NonCopyable {
protected :
MEM_NonCopyable(
) {
};
private :
MEM_NonCopyable (const MEM_NonCopyable *);
MEM_NonCopyable (const MEM_NonCopyable &);
};
#endif

297
intern/memutil/MEM_RefCountPtr.h
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@ -1,297 +0,0 @@
/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file memutil/MEM_RefCountPtr.h
* \ingroup memutil
*/
/**
* \file MEM_RefCountPtr.h
* Declaration of MEM_RefCounted and MEM_RefCountable classes.
* \author Laurence
*/
#ifndef __MEM_REFCOUNTPTR_H__
#define __MEM_REFCOUNTPTR_H__
#include <stdlib.h> // for NULL !
/**
* \section MEM_RefCountable
* This is a base class for reference countable objects.
* If you want an object to be shared using a reference
* counted system derrivce from this class. All subclasses
* should insist that they are created on the heap, this
* can be done by makeing all constructors private and
* defining a static New() method that returns a ref counted
* ptr to a new()ly allocated instance.
*
* \section Example subclass
*
* \code{.cpp}
* class MySharedObject : public MEM_RefCountable {
*
* private :
* MySharedObject() : MEM_RefCountable() { //class specific initialization};
* MySharedObject(const MySharedObject &other) // not implemented
* public :
* static
* MEM_RefCountPtr<MySharedObject>
* New(
* ) {
* return MEM_RefCountPtr<MySharedObject>( new MySharedObject());
* }
*
* // other member functions
* };
* \endcode
*
* Alternitively you may first wish to define a fully functional
* class and then define a reference counting wrapper for this class.
* This is useful when the base type can be used without reference
* counting.
*
* E.g.
*
* \code{.cpp}
* class UsefullClass {
* private :
* ...
* public :
*
* UsefullClass()
* UsefullMethod(...)
* AnotherUsefullMethod(...)
* };
*
* class RcUsefullClass : public UsefullClass, public MEM_RefCountable
* {
* private :
* // Override base class public constructor --- forces
* // use of New(...)
* RcUsefullClass(...)
* public :
*
* // Override each public constructor of UsefullClass with
* // an equivalent static New method returning a MEM_RefCountPtr
*
* static
* MEM_RefCountPtr<RcUsefullClass>
* New(...) {
* return MEM_RefCountPtr<RcUsefullClass> output(
* new UsefullClass(...)
* );
* }
*
* // warning never call destructor directly allow ref counting
* // mechanism to handle object lifetime.
* ~RcUsefullClass();
* };
* \endcode
*
*/
class MEM_RefCountable {
private :
/**
* The reference count!
* We use mutable here because we would like to
* share references of const objects!
* Maybe should think about having decRef()
* another value because we should not be deleting
* non-const objects
*/
mutable int m_count;
protected :
/**
* Protected constructors
* This class is not for direct instantiation. Sub classes
* should only be allocated on the heap.
*/
MEM_RefCountable (
) :
m_count (0)
{
};
MEM_RefCountable (
const MEM_RefCountable &
) :
m_count (0)
{
}
public :
void
IncRef(
) const {
m_count++;
}
int
DecRef(
) {
return (--m_count);
}
~MEM_RefCountable(
) {
//nothing to do
}
};
/**
* \section MEM_RefCountPtr
*/
template
< class T >
class MEM_RefCountPtr {
public :
/**
* Construction from reference - share ownership with
* the right hand side.
*/
MEM_RefCountPtr(
const MEM_RefCountPtr &rhs
) : m_val (NULL) {
ShareOwnership(rhs.m_val);
}
/**
* Construction from ptr - this class shares
* ownership of object val.
*/
MEM_RefCountPtr(
const T* val
) :
m_val (NULL)
{
ShareOwnership(val);
}
/**
* Default constructor
*/
MEM_RefCountPtr(
) :
m_val (NULL)
{
}
/**
* Type conversion from this class to the type
* of a pointer to the template parameter.
* This means you can pass an instance of this class
* to a function expecting a ptr of type T.
*/
operator T * () const {
return m_val;
}
MEM_RefCountPtr & operator=(
const MEM_RefCountPtr &rhs
) {
if (this->m_val != rhs.m_val) {
ReleaseOwnership();
ShareOwnership(rhs.m_val);
}
return *this;
}
/**
* Overload the operator -> so that it's possible to access
* all the normal methods of the internal ptr.
*/
T * operator->() const {
return m_val;
}
/**
* Returrn a reference to the shared object.
*/
T&
Ref(
) {
return *m_val;
}
/**
* Destructor - deletes object if it's ref count is zero.
*/
~MEM_RefCountPtr(
) {
ReleaseOwnership();
}
private :
/// The ptr owned by this class.
T * m_val;
void
ShareOwnership(
const T * val
) {
if (val != NULL) {
val->IncRef();
}
m_val = const_cast<T *>(val);
}
void
ReleaseOwnership(
) {
if (m_val) {
if (m_val->DecRef() == 0) {
delete(m_val);
m_val = NULL;
}
}
}
};
#endif

245
intern/memutil/MEM_SmartPtr.h
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@ -1,245 +0,0 @@
/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file memutil/MEM_SmartPtr.h
* \ingroup memutil
*/
/**
* @file MEM_SmartPtr.h
* Declaration of MEM_RefCounted and MEM_RefCountable classes.
* @author Laurence
*/
#ifndef __MEM_SMARTPTR_H__
#define __MEM_SMARTPTR_H__
#include <stdlib.h> // for NULL !
/**
* \section MEM_SmartPtr
* This class defines a smart pointer similar to that defined in
* the Standard Template Library but without the painful get()
* semantics to access the internal c style pointer.
*
* It is often useful to explicitly declare ownership of memory
* allocated on the heap within class or function scope. This
* class helps you to encapsulate this ownership within a value
* type. When an instance of this class goes out of scope it
* makes sure that any memory associated with it's internal pointer
* is deleted. It can help to inform users of an aggregate class
* that it owns instances of it's members and these instances
* should not be shared. This is not reliably enforceable in C++
* but this class attempts to make the 1-1 relationship clear.
*
* \section Example usage
*
* \code{.cpp}
* class foo {
* ...constructors accessors etc.
* int x[1000];
* }
*
* class bar {
* public :
* static
* bar *
* New(
* ) {
* MEM_SmartPtr<foo> afoo = new foo();
* MEM_SmartPtr<bar> that = new bar();
*
* if (foo == NULL || that == NULL) return NULL;
*
* that->m_foo = afoo.Release();
* return that.Release();
* }
*
* ~bar() {
* // smart ptr takes care of deletion
* }
* private :
* MEM_SmartPtr<foo> m_foo;
* }
* \endcode
*
* You may also safely construct vectors of MEM_SmartPtrs and
* have the vector own stuff you put into it.
*
* e.g.
* \code{.cpp}
* {
* std::vector<MEM_SmartPtr<foo> > foo_vector;
* foo_vector.push_back( new foo());
* foo_vector.push_back( new foo());
*
* foo_vector[0]->bla();
* } // foo_vector out of scope => heap memory freed for both foos
* \endcode
*
* @warning this class should only be used for objects created
* on the heap via the new function. It will not behave correctly
* if you pass ptrs to objects created with new[] nor with
* objects declared on the stack. Doing this is likely to crash
* the program or lead to memory leaks.
*/
template
< class T >
class MEM_SmartPtr {
public :
/**
* Construction from reference - this class
* always assumes ownership from the rhs.
*/
MEM_SmartPtr(
const MEM_SmartPtr &rhs
) {
m_val = rhs.Release();
}
/**
* Construction from ptr - this class always
* assumes that it now owns the memory associated with the
* ptr.
*/
MEM_SmartPtr(
T* val
) :
m_val (val)
{
}
/**
* Defalut constructor
*/
MEM_SmartPtr(
) :
m_val (NULL)
{
}
/**
* Type conversion from this class to the type
* of a pointer to the template parameter.
* This means you can pass an instance of this class
* to a function expecting a ptr of type T.
*/
operator T * () const {
return m_val;
}
/**
* Return a reference to the internal ptr class.
* Use with care when you now that the internal ptr
* is not NULL!
*/
T &
Ref(
) const {
return *m_val;
}
/**
* Assignment operator - ownership is transferred from rhs to lhs.
* There is an intenional side-effect of function of transferring
* ownership from the const parameter rhs. This is to insure
* the 1-1 relationship.
* The object associated with this instance is deleted if it
* is not the same as that contained in the rhs.
*/
MEM_SmartPtr & operator=(
const MEM_SmartPtr &rhs
) {
if (this->m_val != rhs.m_val) {
delete this->m_val;
}
this->m_val = rhs.Release();
return *this;
}
/**
* Overload the operator -> so that it's possible to access
* all the normal methods of the internal ptr.
*/
T * operator->() const {
return m_val;
}
/**
* Caller takes ownership of the object - the object will not
* be deleted when the ptr goes out of scope.
*/
T *
Release(
) const {
T* temp = m_val;
(const_cast<MEM_SmartPtr *>(this))->m_val = NULL;
return temp;
}
/**
* Force destruction of the internal object.
*/
void
Delete(
) {
delete (m_val);
m_val = NULL;
}
/**
* Destructor - deletes object if it exists
*/
~MEM_SmartPtr(
) {
delete (m_val);
}
private :
/// The ptr owned by this class.
T * m_val;
};
#endif