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Diffstat (limited to 'Zend/zend_alloc.h')
| -rw-r--r-- | Zend/zend_alloc.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/Zend/zend_alloc.h b/Zend/zend_alloc.h new file mode 100644 index 000000000..d11618288 --- /dev/null +++ b/Zend/zend_alloc.h @@ -0,0 +1,203 @@ +/* + +----------------------------------------------------------------------+ + | Zend Engine | + +----------------------------------------------------------------------+ + | Copyright (c) 1998-2004 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 1.52.2.1 2004/08/11 06:13:12 derick 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:31; + unsigned int cached:1; +} 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 _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; + +#define USE_ZEND_ALLOC 1 + +#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 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)) + +#define safe_estrdup(ptr) ((ptr)?(estrdup(ptr)):(empty_string)) +#define safe_estrndup(ptr, len) ((ptr)?(estrndup((ptr), (len))):(empty_string)) + +#else + +#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) 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) strndup((s), (length)) + +/* Selective persistent/non persistent allocation macros */ +#define pemalloc(size, persistent) malloc(size) +#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) + +#define safe_estrdup(ptr) ((ptr)?(strdup(ptr)):(empty_string)) +#define safe_estrndup(ptr, len) ((ptr)?(strndup((ptr), (len))):(empty_string)) + +#endif + +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: + */ |