93 lines
2.8 KiB
C++
93 lines
2.8 KiB
C++
// Filename: dallocator.h
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// Created by: drose (05Jun01)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef DALLOCATOR_H
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#define DALLOCATOR_H
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#include "dtoolbase.h"
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#include <memory>
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////////////////////////////////////////////////////////////////////
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// Class : dallocator
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// Description : This is similar to pallocator, but always uses the
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// default new and delete handlers defined in
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// dtoolbase_cc.h; it never calls the hooks assigned by
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// redefining global_operator_new, etc.
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//
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// This is needed in those rare cases when we need to
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// allocate memory for STL without going through the
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// callback hooks, for instance to implement STL tables
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// within the MemoryUsage class itself.
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////////////////////////////////////////////////////////////////////
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#if defined(OLD_STYLE_ALLOCATOR)
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// Early versions of gcc wanted to use its own kind of allocator,
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// somewhat different from the STL standard. Irix uses this one too.
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// It might be inherited from an early draft of the STL standard.
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template<class Type>
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class dallocator : public alloc {
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public:
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#ifndef NDEBUG
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INLINE static Type *allocate(size_t n);
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INLINE static void deallocate(void *p, size_t n);
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#endif // NDEBUG
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};
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#elif defined(GNU_STYLE_ALLOCATOR)
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// Later versions of gcc want to use a still different, nonstandard
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// definition. Sheesh.
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template<class Type>
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class dallocator : public allocator<Type> {
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public:
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INLINE dallocator();
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template<class _Tp1>
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INLINE dallocator(const dallocator<_Tp1> &other);
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#ifndef NDEBUG
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INLINE Type *allocate(size_t n);
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INLINE void deallocate(void *p, size_t n);
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#endif // NDEBUG
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template <class _Tp1> struct rebind {
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typedef dallocator<_Tp1> other;
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};
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};
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#else // *_STYLE_ALLOCATOR
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// This is the correct allocator declaration as the current C++
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// standard defines it.
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template<class Type>
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class dallocator : public allocator<Type> {
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public:
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#ifndef NDEBUG
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INLINE pointer allocate(size_type n, allocator<void>::const_pointer hint = 0);
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// INLINE void deallocate(pointer p, size_type n);
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INLINE void deallocate(void *p, size_type n);
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#endif // NDEBUG
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};
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#endif // *_STYLE_ALLOCATOR
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#include "dallocator.T"
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#endif
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