From 1dff73dfd6accb9bae971dd0f1ce15a182b0f75b Mon Sep 17 00:00:00 2001 From: Fumitoshi UKAI Date: Sun, 9 Mar 2003 19:43:05 +0000 Subject: remove gc --- gc/include/gc_allocator.h | 232 ---------------------------------------------- 1 file changed, 232 deletions(-) delete mode 100644 gc/include/gc_allocator.h (limited to 'gc/include/gc_allocator.h') diff --git a/gc/include/gc_allocator.h b/gc/include/gc_allocator.h deleted file mode 100644 index 87c8509..0000000 --- a/gc/include/gc_allocator.h +++ /dev/null @@ -1,232 +0,0 @@ -/* - * Copyright (c) 1996-1997 - * Silicon Graphics Computer Systems, Inc. - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Silicon Graphics makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - * - * Copyright (c) 2002 - * Hewlett-Packard Company - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Hewlett-Packard Company makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - */ - -/* - * This implements standard-conforming allocators that interact with - * the garbage collector. Gc_alloctor allocates garbage-collectable - * objects of type T. Traceable_allocator allocates objects that - * are not temselves garbage collected, but are scanned by the - * collector for pointers to collectable objects. Traceable_alloc - * should be used for explicitly managed STL containers that may - * point to collectable objects. - * - * This code was derived from an earlier version of the GNU C++ standard - * library, which itself was derived from the SGI STL implementation. - */ - -#include "gc.h" // For size_t - -/* First some helpers to allow us to dispatch on whether or not a type - * is known to be pointerfree. - * These are private, except that the client may invoke the - * GC_DECLARE_PTRFREE macro. - */ - -struct GC_true_type {}; -struct GC_false_type {}; - -template -struct GC_type_traits { - GC_false_type GC_is_ptr_free; -}; - -# define GC_DECLARE_PTRFREE(T) \ -template<> struct GC_type_traits { GC_true_type GC_is_ptr_free; } - -GC_DECLARE_PTRFREE(signed char); -GC_DECLARE_PTRFREE(unsigned char); -GC_DECLARE_PTRFREE(signed short); -GC_DECLARE_PTRFREE(unsigned short); -GC_DECLARE_PTRFREE(signed int); -GC_DECLARE_PTRFREE(unsigned int); -GC_DECLARE_PTRFREE(signed long); -GC_DECLARE_PTRFREE(unsigned long); -GC_DECLARE_PTRFREE(float); -GC_DECLARE_PTRFREE(double); -/* The client may want to add others. */ - -// In the following GC_Tp is GC_true_type iff we are allocating a -// pointerfree object. -template -inline void * GC_selective_alloc(size_t n, GC_Tp) { - return GC_MALLOC(n); -} - -template <> -inline void * GC_selective_alloc(size_t n, GC_true_type) { - return GC_MALLOC_ATOMIC(n); -} - -/* Now the public gc_allocator class: - */ -template -class gc_allocator { -public: - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef GC_Tp* pointer; - typedef const GC_Tp* const_pointer; - typedef GC_Tp& reference; - typedef const GC_Tp& const_reference; - typedef GC_Tp value_type; - - template struct rebind { - typedef gc_allocator other; - }; - - gc_allocator() {} -# ifndef _MSC_VER - // I'm not sure why this is needed here in addition to the following. - // The standard specifies it for the standard allocator, but VC++ rejects - // it. -HB - gc_allocator(const gc_allocator&) throw() {} -# endif - template gc_allocator(const gc_allocator&) throw() {} - ~gc_allocator() throw() {} - - pointer address(reference GC_x) const { return &GC_x; } - const_pointer address(const_reference GC_x) const { return &GC_x; } - - // GC_n is permitted to be 0. The C++ standard says nothing about what - // the return value is when GC_n == 0. - GC_Tp* allocate(size_type GC_n, const void* = 0) { - GC_type_traits traits; - return static_cast - (GC_selective_alloc(GC_n * sizeof(GC_Tp), - traits.GC_is_ptr_free)); - } - - // __p is not permitted to be a null pointer. - void deallocate(pointer __p, size_type GC_n) - { GC_FREE(__p); } - - size_type max_size() const throw() - { return size_t(-1) / sizeof(GC_Tp); } - - void construct(pointer __p, const GC_Tp& __val) { new(__p) GC_Tp(__val); } - void destroy(pointer __p) { __p->~GC_Tp(); } -}; - -template<> -class gc_allocator { - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef void* pointer; - typedef const void* const_pointer; - typedef void value_type; - - template struct rebind { - typedef gc_allocator other; - }; -}; - - -template -inline bool operator==(const gc_allocator&, const gc_allocator&) -{ - return true; -} - -template -inline bool operator!=(const gc_allocator&, const gc_allocator&) -{ - return false; -} - -/* - * And the public traceable_allocator class. - */ - -// Note that we currently don't specialize the pointer-free case, since a -// pointer-free traceable container doesn't make that much sense, -// though it could become an issue due to abstraction boundaries. -template -class traceable_allocator { -public: - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef GC_Tp* pointer; - typedef const GC_Tp* const_pointer; - typedef GC_Tp& reference; - typedef const GC_Tp& const_reference; - typedef GC_Tp value_type; - - template struct rebind { - typedef traceable_allocator other; - }; - - traceable_allocator() throw() {} -# ifndef _MSC_VER - traceable_allocator(const traceable_allocator&) throw() {} -# endif - template traceable_allocator - (const traceable_allocator&) throw() {} - ~traceable_allocator() throw() {} - - pointer address(reference GC_x) const { return &GC_x; } - const_pointer address(const_reference GC_x) const { return &GC_x; } - - // GC_n is permitted to be 0. The C++ standard says nothing about what - // the return value is when GC_n == 0. - GC_Tp* allocate(size_type GC_n, const void* = 0) { - return static_cast(GC_MALLOC_UNCOLLECTABLE(GC_n * sizeof(GC_Tp))); - } - - // __p is not permitted to be a null pointer. - void deallocate(pointer __p, size_type GC_n) - { GC_FREE(__p); } - - size_type max_size() const throw() - { return size_t(-1) / sizeof(GC_Tp); } - - void construct(pointer __p, const GC_Tp& __val) { new(__p) GC_Tp(__val); } - void destroy(pointer __p) { __p->~GC_Tp(); } -}; - -template<> -class traceable_allocator { - typedef size_t size_type; - typedef ptrdiff_t difference_type; - typedef void* pointer; - typedef const void* const_pointer; - typedef void value_type; - - template struct rebind { - typedef traceable_allocator other; - }; -}; - - -template -inline bool operator==(const traceable_allocator&, const traceable_allocator&) -{ - return true; -} - -template -inline bool operator!=(const traceable_allocator&, const traceable_allocator&) -{ - return false; -} - -- cgit v1.2.3