author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 11 Jun 2010 15:26:22 +0300 | |
changeset 34 | 5fae379060a7 |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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/* |
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* |
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* Copyright (c) 1996,1997 |
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* Silicon Graphics Computer Systems, Inc. |
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* |
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* Copyright (c) 1997 |
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* Moscow Center for SPARC Technology |
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* |
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* Copyright (c) 1999 |
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* Boris Fomitchev |
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* |
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* This material is provided "as is", with absolutely no warranty expressed |
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* or implied. Any use is at your own risk. |
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* |
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* Permission to use or copy this software for any purpose is hereby granted |
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* without fee, provided the above notices are retained on all copies. |
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* Permission to modify the code and to distribute modified code is granted, |
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* provided the above notices are retained, and a notice that the code was |
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* modified is included with the above copyright notice. |
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* |
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*/ |
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#ifndef _STLP_ALLOC_C |
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#define _STLP_ALLOC_C |
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|
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#ifndef _STLP_INTERNAL_ALLOC_H |
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# include <stl/_alloc.h> |
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#endif |
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#if defined (__WATCOMC__) |
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# pragma warning 13 9 |
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# pragma warning 367 9 |
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# pragma warning 368 9 |
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#endif |
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_STLP_BEGIN_NAMESPACE |
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template <class _Alloc> |
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void * _STLP_CALL __debug_alloc<_Alloc>::allocate(size_t __n) { |
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size_t __total_extra = __extra_before_chunk() + __extra_after_chunk(); |
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size_t __real_n = __n + __total_extra; |
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if (__real_n < __n) { |
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//It means that we rolled on size_t, __n must be very large, lets hope |
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//that allocating it will raised a bad_alloc exception: |
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__real_n = __n + (__total_extra - __real_n - 1); |
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} |
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__alloc_header *__result = (__alloc_header *)__allocator_type::allocate(__real_n); |
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memset((char*)__result, __shred_byte, __real_n * sizeof(value_type)); |
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__result->__magic = __magic; |
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__result->__type_size = sizeof(value_type); |
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__result->_M_size = (_STLP_UINT32_T)__n; |
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return ((char*)__result) + (long)__extra_before; |
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} |
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template <class _Alloc> |
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void _STLP_CALL |
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__debug_alloc<_Alloc>::deallocate(void *__p, size_t __n) { |
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__alloc_header * __real_p = (__alloc_header*)((char *)__p -(long)__extra_before); |
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// check integrity |
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_STLP_VERBOSE_ASSERT(__real_p->__magic != __deleted_magic, _StlMsg_DBA_DELETED_TWICE) |
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_STLP_VERBOSE_ASSERT(__real_p->__magic == __magic, _StlMsg_DBA_NEVER_ALLOCATED) |
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_STLP_VERBOSE_ASSERT(__real_p->__type_size == 1,_StlMsg_DBA_TYPE_MISMATCH) |
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_STLP_VERBOSE_ASSERT(__real_p->_M_size == __n, _StlMsg_DBA_SIZE_MISMATCH) |
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// check pads on both sides |
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unsigned char* __tmp; |
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for (__tmp = (unsigned char*)(__real_p + 1); __tmp < (unsigned char*)__p; ++__tmp) { |
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_STLP_VERBOSE_ASSERT(*__tmp == __shred_byte, _StlMsg_DBA_UNDERRUN) |
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} |
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size_t __real_n = __n + __extra_before_chunk() + __extra_after_chunk(); |
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for (__tmp= ((unsigned char*)__p) + __n * sizeof(value_type); |
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__tmp < ((unsigned char*)__real_p) + __real_n ; ++__tmp) { |
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_STLP_VERBOSE_ASSERT(*__tmp == __shred_byte, _StlMsg_DBA_OVERRUN) |
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} |
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// that may be unfortunate, just in case |
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__real_p->__magic = __deleted_magic; |
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memset((char*)__p, __shred_byte, __n * sizeof(value_type)); |
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__allocator_type::deallocate(__real_p, __real_n); |
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} |
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_STLP_END_NAMESPACE |
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#endif /* _STLP_ALLOC_C */ |
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// Local Variables: |
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// mode:C++ |
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// End: |