mirror of
https://github.com/php/php-src.git
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321 lines
16 KiB
C
321 lines
16 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2015 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#ifndef ZEND_ALLOC_H
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#define ZEND_ALLOC_H
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#include <stdio.h>
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#include "../TSRM/TSRM.h"
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#include "zend.h"
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#ifndef ZEND_MM_ALIGNMENT
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# define ZEND_MM_ALIGNMENT Z_L(8)
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# define ZEND_MM_ALIGNMENT_LOG2 Z_L(3)
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#elif ZEND_MM_ALIGNMENT < 4
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# undef ZEND_MM_ALIGNMENT
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# undef ZEND_MM_ALIGNMENT_LOG2
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# define ZEND_MM_ALIGNMENT Z_L(4)
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# define ZEND_MM_ALIGNMENT_LOG2 Z_L(2)
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#endif
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#define ZEND_MM_ALIGNMENT_MASK ~(ZEND_MM_ALIGNMENT - Z_L(1))
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#define ZEND_MM_ALIGNED_SIZE(size) (((size) + ZEND_MM_ALIGNMENT - Z_L(1)) & ZEND_MM_ALIGNMENT_MASK)
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typedef struct _zend_leak_info {
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void *addr;
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size_t size;
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const char *filename;
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const char *orig_filename;
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uint lineno;
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uint orig_lineno;
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} zend_leak_info;
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#if ZEND_DEBUG
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typedef struct _zend_mm_debug_info {
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size_t size;
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const char *filename;
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const char *orig_filename;
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uint lineno;
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uint orig_lineno;
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} zend_mm_debug_info;
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# define ZEND_MM_OVERHEAD ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info))
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#else
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# define ZEND_MM_OVERHEAD 0
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#endif
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BEGIN_EXTERN_C()
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ZEND_API char* ZEND_FASTCALL zend_strndup(const char *s, size_t length) ZEND_ATTRIBUTE_MALLOC;
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ZEND_API void* ZEND_FASTCALL _emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(1);
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ZEND_API void* ZEND_FASTCALL _safe_emalloc(size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
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ZEND_API void* ZEND_FASTCALL _safe_malloc(size_t nmemb, size_t size, size_t offset) ZEND_ATTRIBUTE_MALLOC;
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ZEND_API void ZEND_FASTCALL _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API void* ZEND_FASTCALL _ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE2(1,2);
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ZEND_API void* ZEND_FASTCALL _erealloc(void *ptr, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_ALLOC_SIZE(2);
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ZEND_API void* ZEND_FASTCALL _erealloc2(void *ptr, size_t size, size_t copy_size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_ALLOC_SIZE(2);
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ZEND_API void* ZEND_FASTCALL _safe_erealloc(void *ptr, size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API void* ZEND_FASTCALL _safe_realloc(void *ptr, size_t nmemb, size_t size, size_t offset);
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ZEND_API char* ZEND_FASTCALL _estrdup(const char *s ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
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ZEND_API char* ZEND_FASTCALL _estrndup(const char *s, size_t length ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
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ZEND_API size_t ZEND_FASTCALL _zend_mem_block_size(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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#include "zend_alloc_sizes.h"
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/* _emalloc() & _efree() specialization */
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#if !ZEND_DEBUG && !defined(_WIN32)
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# define _ZEND_BIN_ALLOCATOR_DEF(_num, _size, _elements, _pages, x, y) \
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ZEND_API void* ZEND_FASTCALL _emalloc_ ## _size(void) ZEND_ATTRIBUTE_MALLOC;
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ZEND_MM_BINS_INFO(_ZEND_BIN_ALLOCATOR_DEF, x, y)
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ZEND_API void* ZEND_FASTCALL _emalloc_large(size_t size) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(1);
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ZEND_API void* ZEND_FASTCALL _emalloc_huge(size_t size) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(1);
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# define _ZEND_BIN_ALLOCATOR_SELECTOR_START(_num, _size, _elements, _pages, size, y) \
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((size <= _size) ? _emalloc_ ## _size() :
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# define _ZEND_BIN_ALLOCATOR_SELECTOR_END(_num, _size, _elements, _pages, size, y) \
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)
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# define ZEND_ALLOCATOR(size) \
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ZEND_MM_BINS_INFO(_ZEND_BIN_ALLOCATOR_SELECTOR_START, size, y) \
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((size <= ZEND_MM_MAX_LARGE_SIZE) ? _emalloc_large(size) : _emalloc_huge(size)) \
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ZEND_MM_BINS_INFO(_ZEND_BIN_ALLOCATOR_SELECTOR_END, size, y)
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# define _emalloc(size) \
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(__builtin_constant_p(size) ? \
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ZEND_ALLOCATOR(size) \
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: \
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_emalloc(size) \
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)
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# define _ZEND_BIN_DEALLOCATOR_DEF(_num, _size, _elements, _pages, x, y) \
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ZEND_API void ZEND_FASTCALL _efree_ ## _size(void *);
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ZEND_MM_BINS_INFO(_ZEND_BIN_DEALLOCATOR_DEF, x, y)
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ZEND_API void ZEND_FASTCALL _efree_large(void *, size_t size);
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ZEND_API void ZEND_FASTCALL _efree_huge(void *, size_t size);
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# define _ZEND_BIN_DEALLOCATOR_SELECTOR_START(_num, _size, _elements, _pages, ptr, size) \
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if (size <= _size) { _efree_ ## _size(ptr); } else
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# define ZEND_DEALLOCATOR(ptr, size) \
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ZEND_MM_BINS_INFO(_ZEND_BIN_DEALLOCATOR_SELECTOR_START, ptr, size) \
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if (size <= ZEND_MM_MAX_LARGE_SIZE) { _efree_large(ptr, size); } \
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else { _efree_huge(ptr, size); }
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# define efree_size(ptr, size) do { \
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if (__builtin_constant_p(size)) { \
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ZEND_DEALLOCATOR(ptr, size) \
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} else { \
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_efree(ptr); \
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} \
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} while (0)
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# define efree_size_rel(ptr, size) \
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efree_size(ptr, size)
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#else
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# define efree_size(ptr, size) \
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efree(ptr)
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# define efree_size_rel(ptr, size) \
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efree_rel(ptr)
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#define _emalloc_large _emalloc
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#define _emalloc_huge _emalloc
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#define _efree_large _efree
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#define _efree_huge _efree
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#endif
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/* Standard wrapper macros */
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#define emalloc(size) _emalloc((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define emalloc_large(size) _emalloc_large((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define emalloc_huge(size) _emalloc_huge((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define safe_emalloc(nmemb, size, offset) _safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define efree(ptr) _efree((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define efree_large(ptr) _efree_large((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define efree_huge(ptr) _efree_huge((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define ecalloc(nmemb, size) _ecalloc((nmemb), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define erealloc(ptr, size) _erealloc((ptr), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define erealloc2(ptr, size, copy_size) _erealloc2((ptr), (size), (copy_size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define safe_erealloc(ptr, nmemb, size, offset) _safe_erealloc((ptr), (nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define erealloc_recoverable(ptr, size) _erealloc((ptr), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define erealloc2_recoverable(ptr, size, copy_size) _erealloc2((ptr), (size), (copy_size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define estrdup(s) _estrdup((s) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define estrndup(s, length) _estrndup((s), (length) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define zend_mem_block_size(ptr) _zend_mem_block_size((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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/* Relay wrapper macros */
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#define emalloc_rel(size) _emalloc((size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define safe_emalloc_rel(nmemb, size, offset) _safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define efree_rel(ptr) _efree((ptr) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define ecalloc_rel(nmemb, size) _ecalloc((nmemb), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define erealloc_rel(ptr, size) _erealloc((ptr), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define erealloc2_rel(ptr, size, copy_size) _erealloc2((ptr), (size), (copy_size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define erealloc_recoverable_rel(ptr, size) _erealloc((ptr), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define erealloc2_recoverable_rel(ptr, size, copy_size) _erealloc2((ptr), (size), (copy_size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define safe_erealloc_rel(ptr, nmemb, size, offset) _safe_erealloc((ptr), (nmemb), (size), (offset) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define estrdup_rel(s) _estrdup((s) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define estrndup_rel(s, length) _estrndup((s), (length) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define zend_mem_block_size_rel(ptr) _zend_mem_block_size((ptr) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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zend_always_inline static void * __zend_malloc(size_t len)
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{
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void *tmp = malloc(len);
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if (tmp) {
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return tmp;
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}
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fprintf(stderr, "Out of memory\n");
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exit(1);
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}
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zend_always_inline static void * __zend_calloc(size_t nmemb, size_t len)
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{
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void *tmp = _safe_malloc(nmemb, len, 0);
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memset(tmp, 0, nmemb * len);
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return tmp;
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}
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zend_always_inline static void * __zend_realloc(void *p, size_t len)
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{
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p = realloc(p, len);
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if (p) {
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return p;
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}
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fprintf(stderr, "Out of memory\n");
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exit(1);
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}
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/* Selective persistent/non persistent allocation macros */
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#define pemalloc(size, persistent) ((persistent)?__zend_malloc(size):emalloc(size))
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#define safe_pemalloc(nmemb, size, offset, persistent) ((persistent)?_safe_malloc(nmemb, size, offset):safe_emalloc(nmemb, size, offset))
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#define pefree(ptr, persistent) ((persistent)?free(ptr):efree(ptr))
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#define pefree_size(ptr, size, persistent) ((persistent)?free(ptr):efree_size(ptr, size))
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#define pecalloc(nmemb, size, persistent) ((persistent)?__zend_calloc((nmemb), (size)):ecalloc((nmemb), (size)))
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#define perealloc(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc((ptr), (size)))
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#define perealloc2(ptr, size, copy_size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc2((ptr), (size), (copy_size)))
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#define safe_perealloc(ptr, nmemb, size, offset, persistent) ((persistent)?_safe_realloc((ptr), (nmemb), (size), (offset)):safe_erealloc((ptr), (nmemb), (size), (offset)))
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#define perealloc_recoverable(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc_recoverable((ptr), (size)))
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#define perealloc2_recoverable(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc2_recoverable((ptr), (size), (copy_size)))
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#define pestrdup(s, persistent) ((persistent)?strdup(s):estrdup(s))
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#define pestrndup(s, length, persistent) ((persistent)?zend_strndup((s),(length)):estrndup((s),(length)))
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#define pemalloc_rel(size, persistent) ((persistent)?__zend_malloc(size):emalloc_rel(size))
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#define pefree_rel(ptr, persistent) ((persistent)?free(ptr):efree_rel(ptr))
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#define pecalloc_rel(nmemb, size, persistent) ((persistent)?__zend_calloc((nmemb), (size)):ecalloc_rel((nmemb), (size)))
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#define perealloc_rel(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc_rel((ptr), (size)))
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#define perealloc2_rel(ptr, size, copy_size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc2_rel((ptr), (size), (copy_size)))
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#define perealloc_recoverable_rel(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc_recoverable_rel((ptr), (size)))
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#define perealloc2_recoverable_rel(ptr, size, copy_size, persistent) ((persistent)?realloc((ptr), (size)):erealloc2_recoverable_rel((ptr), (size), (copy_size)))
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#define pestrdup_rel(s, persistent) ((persistent)?strdup(s):estrdup_rel(s))
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ZEND_API int zend_set_memory_limit(size_t memory_limit);
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ZEND_API void start_memory_manager(void);
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ZEND_API void shutdown_memory_manager(int silent, int full_shutdown);
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ZEND_API int is_zend_mm(void);
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ZEND_API size_t zend_memory_usage(int real_usage);
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ZEND_API size_t zend_memory_peak_usage(int real_usage);
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/* fast cache for HashTables */
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#define ALLOC_HASHTABLE(ht) \
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(ht) = (HashTable *) emalloc(sizeof(HashTable))
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#define FREE_HASHTABLE(ht) \
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efree_size(ht, sizeof(HashTable))
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#define ALLOC_HASHTABLE_REL(ht) \
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(ht) = (HashTable *) emalloc_rel(sizeof(HashTable))
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#define FREE_HASHTABLE_REL(ht) \
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efree_size_rel(ht, sizeof(HashTable))
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/* Heap functions */
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typedef struct _zend_mm_heap zend_mm_heap;
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ZEND_API zend_mm_heap *zend_mm_startup(void);
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ZEND_API void zend_mm_shutdown(zend_mm_heap *heap, int full_shutdown, int silent);
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ZEND_API void* ZEND_FASTCALL _zend_mm_alloc(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
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ZEND_API void ZEND_FASTCALL _zend_mm_free(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API void* ZEND_FASTCALL _zend_mm_realloc(zend_mm_heap *heap, void *p, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API void* ZEND_FASTCALL _zend_mm_realloc2(zend_mm_heap *heap, void *p, size_t size, size_t copy_size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API size_t ZEND_FASTCALL _zend_mm_block_size(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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#define zend_mm_alloc(heap, size) _zend_mm_alloc((heap), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define zend_mm_free(heap, p) _zend_mm_free((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define zend_mm_realloc(heap, p, size) _zend_mm_realloc((heap), (p), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define zend_mm_realloc2(heap, p, size, copy_size) _zend_mm_realloc2((heap), (p), (size), (copy_size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define zend_mm_block_size(heap, p) _zend_mm_block_size((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define zend_mm_alloc_rel(heap, size) _zend_mm_alloc((heap), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define zend_mm_free_rel(heap, p) _zend_mm_free((heap), (p) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define zend_mm_realloc_rel(heap, p, size) _zend_mm_realloc((heap), (p), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define zend_mm_realloc2_rel(heap, p, size, copy_size) _zend_mm_realloc2((heap), (p), (size), (copy_size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define zend_mm_block_size_rel(heap, p) _zend_mm_block_size((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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ZEND_API zend_mm_heap *zend_mm_set_heap(zend_mm_heap *new_heap);
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ZEND_API void zend_mm_set_custom_handlers(zend_mm_heap *heap,
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void* (*_malloc)(size_t),
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void (*_free)(void*),
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void* (*_realloc)(void*, size_t));
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ZEND_API void zend_mm_get_custom_handlers(zend_mm_heap *heap,
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void* (**_malloc)(size_t),
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void (**_free)(void*),
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void* (**_realloc)(void*, size_t));
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typedef struct _zend_mm_storage zend_mm_storage;
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typedef void* (*zend_mm_chunk_alloc_t)(zend_mm_storage *storage, size_t size, size_t alignment);
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typedef void (*zend_mm_chunk_free_t)(zend_mm_storage *storage, void *chunk, size_t size);
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typedef void (*zend_mm_chunk_truncate_t)(zend_mm_storage *storage, void *chunk, size_t old_size, size_t new_size);
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typedef void (*zend_mm_storage_dtor_t)(zend_mm_storage *storage);
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struct _zend_mm_storage {
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zend_mm_chunk_alloc_t chunk_alloc;
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zend_mm_chunk_free_t chunk_free;
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zend_mm_chunk_truncate_t chunk_truncate;
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zend_mm_storage_dtor_t dtor;
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};
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ZEND_API zend_mm_storage *zend_mm_get_storage(zend_mm_heap *heap);
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ZEND_API zend_mm_heap *zend_mm_startup_ex(zend_mm_storage *storage);
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END_EXTERN_C()
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#endif
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/*
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* Local variables:
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* tab-width: 4
|
|
* c-basic-offset: 4
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|
* indent-tabs-mode: t
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* End:
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|
*/
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