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/* +----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) 1998-2006 Zend Technologies Ltd. (http://www.zend.com) | +----------------------------------------------------------------------+ | This source file is subject to version 2.00 of the Zend license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.zend.com/license/2_00.txt. | | If you did not receive a copy of the Zend license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@zend.com so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Authors: Andi Gutmans <andi@zend.com> | | Zeev Suraski <zeev@zend.com> | +----------------------------------------------------------------------+ */ /* $Id: zend_alloc.h,v 1.63.2.2 2006/01/04 23:53:03 andi Exp $ */ #ifndef ZEND_ALLOC_H #define ZEND_ALLOC_H #include <stdio.h> #include "../TSRM/TSRM.h" #include "zend_globals_macros.h" #include "zend_mm.h" #define MEM_BLOCK_START_MAGIC 0x7312F8DCL #define MEM_BLOCK_END_MAGIC 0x2A8FCC84L #define MEM_BLOCK_FREED_MAGIC 0x99954317L #define MEM_BLOCK_CACHED_MAGIC 0xFB8277DCL typedef struct _zend_mem_header { #if ZEND_DEBUG long magic; char *filename; uint lineno; int reported; char *orig_filename; uint orig_lineno; # ifdef ZTS THREAD_T thread_id; # endif #endif #if ZEND_DEBUG || !defined(ZEND_MM) struct _zend_mem_header *pNext; struct _zend_mem_header *pLast; #endif unsigned int size; } zend_mem_header; typedef union _align_test { void *ptr; double dbl; long lng; } align_test; #define MAX_CACHED_MEMORY 11 #define MAX_CACHED_ENTRIES 256 #define PRE_INIT_CACHE_ENTRIES 32 #if ZEND_GCC_VERSION >= 2000 # define PLATFORM_ALIGNMENT (__alignof__ (align_test)) #else # define PLATFORM_ALIGNMENT (sizeof(align_test)) #endif #define MEM_HEADER_PADDING (((PLATFORM_ALIGNMENT-sizeof(zend_mem_header))%PLATFORM_ALIGNMENT+PLATFORM_ALIGNMENT)%PLATFORM_ALIGNMENT) BEGIN_EXTERN_C() ZEND_API char *zend_strndup(const char *s, unsigned int length) ZEND_ATTRIBUTE_MALLOC; ZEND_API void *_emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; ZEND_API void *_safe_emalloc(size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; ZEND_API void *_safe_malloc(size_t nmemb, size_t size, size_t offset) ZEND_ATTRIBUTE_MALLOC; ZEND_API void _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); ZEND_API void *_ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; ZEND_API void *_erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); ZEND_API char *_estrdup(const char *s ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; ZEND_API char *_estrndup(const char *s, unsigned int length ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; #if USE_ZEND_ALLOC /* Standard wrapper macros */ #define emalloc(size) _emalloc((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define safe_emalloc(nmemb, size, offset) _safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define efree(ptr) _efree((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define ecalloc(nmemb, size) _ecalloc((nmemb), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define erealloc(ptr, size) _erealloc((ptr), (size), 0 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define erealloc_recoverable(ptr, size) _erealloc((ptr), (size), 1 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define estrdup(s) _estrdup((s) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define estrndup(s, length) _estrndup((s), (length) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) /* Relay wrapper macros */ #define emalloc_rel(size) _emalloc((size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define safe_emalloc_rel(nmemb, size, offset) _safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define efree_rel(ptr) _efree((ptr) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define ecalloc_rel(nmemb, size) _ecalloc((nmemb), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define erealloc_rel(ptr, size) _erealloc((ptr), (size), 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define erealloc_recoverable_rel(ptr, size) _erealloc((ptr), (size), 1 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define estrdup_rel(s) _estrdup((s) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define estrndup_rel(s, length) _estrndup((s), (length) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) /* Selective persistent/non persistent allocation macros */ #define pemalloc(size, persistent) ((persistent)?malloc(size):emalloc(size)) #define safe_pemalloc(nmemb, size, offset, persistent) ((persistent)?_safe_malloc(nmemb, size, offset):safe_emalloc(nmemb, size, offset)) #define pefree(ptr, persistent) ((persistent)?free(ptr):efree(ptr)) #define pecalloc(nmemb, size, persistent) ((persistent)?calloc((nmemb), (size)):ecalloc((nmemb), (size))) #define perealloc(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc((ptr), (size))) #define perealloc_recoverable(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc_recoverable((ptr), (size))) #define pestrdup(s, persistent) ((persistent)?strdup(s):estrdup(s)) #define pemalloc_rel(size, persistent) ((persistent)?malloc(size):emalloc_rel(size)) #define pefree_rel(ptr, persistent) ((persistent)?free(ptr):efree_rel(ptr)) #define pecalloc_rel(nmemb, size, persistent) ((persistent)?calloc((nmemb), (size)):ecalloc_rel((nmemb), (size))) #define perealloc_rel(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc_rel((ptr), (size))) #define perealloc_recoverable_rel(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc_recoverable_rel((ptr), (size))) #define pestrdup_rel(s, persistent) ((persistent)?strdup(s):estrdup_rel(s)) #else #undef _GNU_SOURCE #define _GNU_SOURCE #include <string.h> #undef _GNU_SOURCE /* Standard wrapper macros */ #define emalloc(size) malloc(size) #define safe_emalloc(nmemb, size, offset) malloc((nmemb) * (size) + (offset)) #define efree(ptr) free(ptr) #define ecalloc(nmemb, size) calloc((nmemb), (size)) #define erealloc(ptr, size) realloc((ptr), (size)) #define erealloc_recoverable(ptr, size) realloc((ptr), (size)) #define estrdup(s) strdup(s) #define estrndup(s, length) zend_strndup((s), (length)) /* Relay wrapper macros */ #define emalloc_rel(size) malloc(size) #define safe_emalloc_rel(nmemb, size, offset) malloc((nmemb) * (size) + (offset)) #define efree_rel(ptr) free(ptr) #define ecalloc_rel(nmemb, size) calloc((nmemb), (size)) #define erealloc_rel(ptr, size) realloc((ptr), (size)) #define erealloc_recoverable_rel(ptr, size) realloc((ptr), (size)) #define estrdup_rel(s) strdup(s) #define estrndup_rel(s, length) zend_strndup((s), (length)) /* Selective persistent/non persistent allocation macros */ #define pemalloc(size, persistent) malloc(size) #define safe_pemalloc(nmemb, size, offset, persistent) malloc((nmemb) * (size) + (offset)) #define pefree(ptr, persistent) free(ptr) #define pecalloc(nmemb, size, persistent) calloc((nmemb), (size)) #define perealloc(ptr, size, persistent) realloc((ptr), (size)) #define perealloc_recoverable(ptr, size, persistent) realloc((ptr), (size)) #define pestrdup(s, persistent) strdup(s) #define pemalloc_rel(size, persistent) malloc(size) #define pefree_rel(ptr, persistent) free(ptr) #define pecalloc_rel(nmemb, size, persistent) calloc((nmemb), (size)) #define perealloc_rel(ptr, size, persistent) realloc((ptr), (size)) #define perealloc_recoverable_rel(ptr, size, persistent) realloc((ptr), (size)) #define pestrdup_rel(s, persistent) strdup(s) #endif /* !USE_ZEND_ALLOC */ #define safe_estrdup(ptr) ((ptr)?(estrdup(ptr)):STR_EMPTY_ALLOC()) #define safe_estrndup(ptr, len) ((ptr)?(estrndup((ptr), (len))):STR_EMPTY_ALLOC()) ZEND_API int zend_set_memory_limit(unsigned int memory_limit); ZEND_API void start_memory_manager(TSRMLS_D); ZEND_API void shutdown_memory_manager(int silent, int full_shutdown TSRMLS_DC); #if ZEND_DEBUG ZEND_API int _mem_block_check(void *ptr, int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); ZEND_API void _full_mem_check(int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); void zend_debug_alloc_output(char *format, ...); #define mem_block_check(ptr, silent) _mem_block_check(ptr, silent ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define full_mem_check(silent) _full_mem_check(silent ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #else #define mem_block_check(type, ptr, silent) #define full_mem_check(silent) #endif END_EXTERN_C() #endif /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * indent-tabs-mode: t * End: */