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