mirror of
https://github.com/php/php-src.git
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142 lines
5.8 KiB
C
142 lines
5.8 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2002 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 at through the world-wide-web at |
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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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#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_globals_macros.h"
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#include "zend_mm.h"
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#define MEM_BLOCK_START_MAGIC 0x7312F8DCL
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#define MEM_BLOCK_END_MAGIC 0x2A8FCC84L
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#define MEM_BLOCK_FREED_MAGIC 0x99954317L
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#define MEM_BLOCK_CACHED_MAGIC 0xFB8277DCL
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typedef struct _zend_mem_header {
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#if ZEND_DEBUG
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long magic;
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char *filename;
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uint lineno;
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int reported;
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char *orig_filename;
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uint orig_lineno;
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# ifdef ZTS
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THREAD_T thread_id;
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# endif
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#endif
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#if ZEND_DEBUG || !defined(ZEND_MM)
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struct _zend_mem_header *pNext;
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struct _zend_mem_header *pLast;
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#endif
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unsigned int size:31;
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unsigned int cached:1;
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} zend_mem_header;
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typedef union _align_test {
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void *ptr;
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double dbl;
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long lng;
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} align_test;
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#define MAX_CACHED_MEMORY 11
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#define MAX_CACHED_ENTRIES 256
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#define PRE_INIT_CACHE_ENTRIES 32
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#if (defined (__GNUC__) && __GNUC__ >= 2)
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#define PLATFORM_ALIGNMENT (__alignof__ (align_test))
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#else
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#define PLATFORM_ALIGNMENT (sizeof(align_test))
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#endif
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#define MEM_HEADER_PADDING (((PLATFORM_ALIGNMENT-sizeof(zend_mem_header))%PLATFORM_ALIGNMENT+PLATFORM_ALIGNMENT)%PLATFORM_ALIGNMENT)
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BEGIN_EXTERN_C()
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ZEND_API char *zend_strndup(const char *s, unsigned int length);
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ZEND_API void *_emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API void _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API void *_ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API void *_erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API char *_estrdup(const char *s ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API char *_estrndup(const char *s, unsigned int length ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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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 efree(ptr) _efree((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), 0 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define erealloc_recoverable(ptr, size) _erealloc((ptr), (size), 1 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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/* 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 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), 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
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#define erealloc_recoverable_rel(ptr, size) _erealloc((ptr), (size), 1 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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/* Selective persistent/non persistent allocation macros */
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#define pemalloc(size, persistent) ((persistent)?malloc(size):emalloc(size))
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#define pefree(ptr, persistent) ((persistent)?free(ptr):efree(ptr))
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#define pecalloc(nmemb, size, persistent) ((persistent)?calloc((nmemb), (size)):ecalloc((nmemb), (size)))
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#define perealloc(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc((ptr), (size)))
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#define perealloc_recoverable(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc_recoverable((ptr), (size)))
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#define pestrdup(s, persistent) ((persistent)?strdup(s):estrdup(s))
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#define safe_estrdup(ptr) ((ptr)?(estrdup(ptr)):(empty_string))
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#define safe_estrndup(ptr, len) ((ptr)?(estrndup((ptr), (len))):(empty_string))
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ZEND_API int zend_set_memory_limit(unsigned int memory_limit);
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ZEND_API void start_memory_manager(TSRMLS_D);
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ZEND_API void shutdown_memory_manager(int silent, int clean_cache TSRMLS_DC);
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#if ZEND_DEBUG
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ZEND_API int _mem_block_check(void *ptr, int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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ZEND_API void _full_mem_check(int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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void zend_debug_alloc_output(char *format, ...);
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#define mem_block_check(ptr, silent) _mem_block_check(ptr, silent ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#define full_mem_check(silent) _full_mem_check(silent ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
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#else
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#define mem_block_check(type, ptr, silent)
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#define full_mem_check(silent)
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#endif
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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
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* c-basic-offset: 4
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* End:
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*/
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