File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / php / Zend / zend_alloc.h
Revision 1.1.1.4 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Sun Jun 15 20:04:03 2014 UTC (10 years, 4 months ago) by misho
Branches: php, MAIN
CVS tags: v5_4_29, HEAD
php 5.4.29

    1: /*
    2:    +----------------------------------------------------------------------+
    3:    | Zend Engine                                                          |
    4:    +----------------------------------------------------------------------+
    5:    | Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
    6:    +----------------------------------------------------------------------+
    7:    | This source file is subject to version 2.00 of the Zend license,     |
    8:    | that is bundled with this package in the file LICENSE, and is        | 
    9:    | available through the world-wide-web at the following url:           |
   10:    | http://www.zend.com/license/2_00.txt.                                |
   11:    | If you did not receive a copy of the Zend license and are unable to  |
   12:    | obtain it through the world-wide-web, please send a note to          |
   13:    | license@zend.com so we can mail you a copy immediately.              |
   14:    +----------------------------------------------------------------------+
   15:    | Authors: Andi Gutmans <andi@zend.com>                                |
   16:    |          Zeev Suraski <zeev@zend.com>                                |
   17:    +----------------------------------------------------------------------+
   18: */
   19: 
   20: /* $Id: zend_alloc.h,v 1.1.1.4 2014/06/15 20:04:03 misho Exp $ */
   21: 
   22: #ifndef ZEND_ALLOC_H
   23: #define ZEND_ALLOC_H
   24: 
   25: #include <stdio.h>
   26: 
   27: #include "../TSRM/TSRM.h"
   28: #include "zend.h"
   29: 
   30: #ifndef ZEND_MM_ALIGNMENT
   31: # define ZEND_MM_ALIGNMENT 8
   32: # define ZEND_MM_ALIGNMENT_LOG2 3
   33: #elif ZEND_MM_ALIGNMENT < 4
   34: # undef ZEND_MM_ALIGNMENT
   35: # undef ZEND_MM_ALIGNMENT_LOG2
   36: # define ZEND_MM_ALIGNMENT 4
   37: # define ZEND_MM_ALIGNMENT_LOG2 2
   38: #endif
   39: 
   40: #define ZEND_MM_ALIGNMENT_MASK ~(ZEND_MM_ALIGNMENT-1)
   41: 
   42: #define ZEND_MM_ALIGNED_SIZE(size)	(((size) + ZEND_MM_ALIGNMENT - 1) & ZEND_MM_ALIGNMENT_MASK)
   43: 
   44: typedef struct _zend_leak_info {
   45: 	void *addr;
   46: 	size_t size;
   47: 	const char *filename;
   48: 	uint lineno;
   49: 	const char *orig_filename;
   50: 	uint orig_lineno;
   51: } zend_leak_info;
   52: 
   53: BEGIN_EXTERN_C()
   54: 
   55: ZEND_API char *zend_strndup(const char *s, unsigned int length) ZEND_ATTRIBUTE_MALLOC;
   56: 
   57: ZEND_API void *_emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
   58: 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;
   59: ZEND_API void *_safe_malloc(size_t nmemb, size_t size, size_t offset) ZEND_ATTRIBUTE_MALLOC;
   60: ZEND_API void _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
   61: ZEND_API void *_ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
   62: ZEND_API void *_erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
   63: ZEND_API void *_safe_erealloc(void *ptr, size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
   64: ZEND_API void *_safe_realloc(void *ptr, size_t nmemb, size_t size, size_t offset);
   65: ZEND_API char *_estrdup(const char *s ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
   66: ZEND_API char *_estrndup(const char *s, unsigned int length ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
   67: ZEND_API size_t _zend_mem_block_size(void *ptr TSRMLS_DC ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
   68: 
   69: /* Standard wrapper macros */
   70: #define emalloc(size)						_emalloc((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
   71: #define safe_emalloc(nmemb, size, offset)	_safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
   72: #define efree(ptr)							_efree((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
   73: #define ecalloc(nmemb, size)				_ecalloc((nmemb), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
   74: #define erealloc(ptr, size)					_erealloc((ptr), (size), 0 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
   75: #define safe_erealloc(ptr, nmemb, size, offset)	_safe_erealloc((ptr), (nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
   76: #define erealloc_recoverable(ptr, size)		_erealloc((ptr), (size), 1 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
   77: #define estrdup(s)							_estrdup((s) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
   78: #define estrndup(s, length)					_estrndup((s), (length) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
   79: #define zend_mem_block_size(ptr)			_zend_mem_block_size((ptr) TSRMLS_CC ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
   80: 
   81: /* Relay wrapper macros */
   82: #define emalloc_rel(size)						_emalloc((size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
   83: #define safe_emalloc_rel(nmemb, size, offset)	_safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
   84: #define efree_rel(ptr)							_efree((ptr) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
   85: #define ecalloc_rel(nmemb, size)				_ecalloc((nmemb), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
   86: #define erealloc_rel(ptr, size)					_erealloc((ptr), (size), 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
   87: #define erealloc_recoverable_rel(ptr, size)		_erealloc((ptr), (size), 1 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
   88: #define safe_erealloc_rel(ptr, nmemb, size, offset)	_safe_erealloc((ptr), (nmemb), (size), (offset) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
   89: #define estrdup_rel(s)							_estrdup((s) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
   90: #define estrndup_rel(s, length)					_estrndup((s), (length) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
   91: #define zend_mem_block_size_rel(ptr)			_zend_mem_block_size((ptr) TSRMLS_CC ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
   92: 
   93: inline static void * __zend_malloc(size_t len)
   94: {
   95: 	void *tmp = malloc(len);
   96: 	if (tmp) {
   97: 		return tmp;
   98: 	}
   99: 	fprintf(stderr, "Out of memory\n");
  100: 	exit(1);
  101: }
  102: 
  103: inline static void * __zend_calloc(size_t nmemb, size_t len)
  104: {
  105: 	void *tmp = _safe_malloc(nmemb, len, 0);
  106: 	memset(tmp, 0, nmemb * len);
  107: 	return tmp;
  108: }
  109: 
  110: inline static void * __zend_realloc(void *p, size_t len)
  111: {
  112: 	p = realloc(p, len);
  113: 	if (p) {
  114: 		return p;
  115: 	}
  116: 	fprintf(stderr, "Out of memory\n");
  117: 	exit(1);
  118: }
  119: 
  120: 
  121: /* Selective persistent/non persistent allocation macros */
  122: #define pemalloc(size, persistent) ((persistent)?__zend_malloc(size):emalloc(size))
  123: #define safe_pemalloc(nmemb, size, offset, persistent)	((persistent)?_safe_malloc(nmemb, size, offset):safe_emalloc(nmemb, size, offset))
  124: #define pefree(ptr, persistent)  ((persistent)?free(ptr):efree(ptr))
  125: #define pecalloc(nmemb, size, persistent) ((persistent)?__zend_calloc((nmemb), (size)):ecalloc((nmemb), (size)))
  126: #define perealloc(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc((ptr), (size)))
  127: #define safe_perealloc(ptr, nmemb, size, offset, persistent)	((persistent)?_safe_realloc((ptr), (nmemb), (size), (offset)):safe_erealloc((ptr), (nmemb), (size), (offset)))
  128: #define perealloc_recoverable(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc_recoverable((ptr), (size)))
  129: #define pestrdup(s, persistent) ((persistent)?strdup(s):estrdup(s))
  130: #define pestrndup(s, length, persistent) ((persistent)?zend_strndup((s),(length)):estrndup((s),(length)))
  131: 
  132: #define pemalloc_rel(size, persistent) ((persistent)?__zend_malloc(size):emalloc_rel(size))
  133: #define pefree_rel(ptr, persistent)	((persistent)?free(ptr):efree_rel(ptr))
  134: #define pecalloc_rel(nmemb, size, persistent) ((persistent)?__zend_calloc((nmemb), (size)):ecalloc_rel((nmemb), (size)))
  135: #define perealloc_rel(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc_rel((ptr), (size)))
  136: #define perealloc_recoverable_rel(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc_recoverable_rel((ptr), (size)))
  137: #define pestrdup_rel(s, persistent) ((persistent)?strdup(s):estrdup_rel(s))
  138: 
  139: #define safe_estrdup(ptr)  ((ptr)?(estrdup(ptr)):STR_EMPTY_ALLOC())
  140: #define safe_estrndup(ptr, len) ((ptr)?(estrndup((ptr), (len))):STR_EMPTY_ALLOC())
  141: 
  142: ZEND_API int zend_set_memory_limit(size_t memory_limit);
  143: 
  144: ZEND_API void start_memory_manager(TSRMLS_D);
  145: ZEND_API void shutdown_memory_manager(int silent, int full_shutdown TSRMLS_DC);
  146: ZEND_API int is_zend_mm(TSRMLS_D);
  147: 
  148: #if ZEND_DEBUG
  149: ZEND_API int _mem_block_check(void *ptr, int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
  150: ZEND_API void _full_mem_check(int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
  151: void zend_debug_alloc_output(char *format, ...);
  152: #define mem_block_check(ptr, silent) _mem_block_check(ptr, silent ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
  153: #define full_mem_check(silent) _full_mem_check(silent ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
  154: #else
  155: #define mem_block_check(type, ptr, silent)
  156: #define full_mem_check(silent)
  157: #endif
  158: 
  159: ZEND_API size_t zend_memory_usage(int real_usage TSRMLS_DC);
  160: ZEND_API size_t zend_memory_peak_usage(int real_usage TSRMLS_DC);
  161: 
  162: END_EXTERN_C()
  163: 
  164: /* fast cache for zval's */
  165: #define ALLOC_ZVAL(z)	\
  166: 	(z) = (zval *) emalloc(sizeof(zval))
  167: 
  168: #define FREE_ZVAL(z)	\
  169: 	efree_rel(z)
  170: 
  171: #define ALLOC_ZVAL_REL(z)	\
  172: 	(z) = (zval *) emalloc_rel(sizeof(zval))
  173: 
  174: #define FREE_ZVAL_REL(z)	\
  175: 	efree_rel(z)
  176: 
  177: /* fast cache for HashTables */
  178: #define ALLOC_HASHTABLE(ht)	\
  179: 	(ht) = (HashTable *) emalloc(sizeof(HashTable))
  180: 
  181: #define FREE_HASHTABLE(ht)	\
  182: 	efree(ht)
  183: 
  184: #define ALLOC_HASHTABLE_REL(ht)	\
  185: 	(ht) = (HashTable *) emalloc_rel(sizeof(HashTable))
  186: 
  187: #define FREE_HASHTABLE_REL(ht)	\
  188: 	efree_rel(ht)
  189: 
  190: /* Heap functions */
  191: typedef struct _zend_mm_heap zend_mm_heap;
  192: 
  193: ZEND_API zend_mm_heap *zend_mm_startup(void);
  194: ZEND_API void zend_mm_shutdown(zend_mm_heap *heap, int full_shutdown, int silent TSRMLS_DC);
  195: ZEND_API void *_zend_mm_alloc(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
  196: ZEND_API void _zend_mm_free(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
  197: ZEND_API void *_zend_mm_realloc(zend_mm_heap *heap, void *p, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
  198: ZEND_API size_t _zend_mm_block_size(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
  199: 
  200: #define zend_mm_alloc(heap, size)			_zend_mm_alloc((heap), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
  201: #define zend_mm_free(heap, p)				_zend_mm_free((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
  202: #define zend_mm_realloc(heap, p, size)		_zend_mm_realloc((heap), (p), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
  203: #define zend_mm_block_size(heap, p)			_zend_mm_block_size((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
  204: 
  205: #define zend_mm_alloc_rel(heap, size)		_zend_mm_alloc((heap), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
  206: #define zend_mm_free_rel(heap, p)			_zend_mm_free((heap), (p) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
  207: #define zend_mm_realloc_rel(heap, p, size)	_zend_mm_realloc((heap), (p), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
  208: #define zend_mm_block_size_rel(heap, p)		_zend_mm_block_size((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
  209: 
  210: /* Heaps with user defined storage */
  211: typedef struct _zend_mm_storage zend_mm_storage;
  212: 
  213: typedef struct _zend_mm_segment {
  214: 	size_t	size;
  215: 	struct _zend_mm_segment *next_segment;
  216: } zend_mm_segment;
  217: 
  218: typedef struct _zend_mm_mem_handlers {
  219: 	const char *name;
  220: 	zend_mm_storage* (*init)(void *params);
  221: 	void (*dtor)(zend_mm_storage *storage);
  222: 	void (*compact)(zend_mm_storage *storage);
  223: 	zend_mm_segment* (*_alloc)(zend_mm_storage *storage, size_t size);
  224: 	zend_mm_segment* (*_realloc)(zend_mm_storage *storage, zend_mm_segment *ptr, size_t size);
  225: 	void (*_free)(zend_mm_storage *storage, zend_mm_segment *ptr);
  226: } zend_mm_mem_handlers;
  227: 
  228: struct _zend_mm_storage {
  229: 	const zend_mm_mem_handlers *handlers;
  230: 	void *data;
  231: };
  232: 
  233: ZEND_API zend_mm_heap *zend_mm_startup_ex(const zend_mm_mem_handlers *handlers, size_t block_size, size_t reserve_size, int internal, void *params);
  234: ZEND_API zend_mm_heap *zend_mm_set_heap(zend_mm_heap *new_heap TSRMLS_DC);
  235: ZEND_API zend_mm_storage *zend_mm_get_storage(zend_mm_heap *heap);
  236: 
  237: ZEND_API void zend_mm_set_custom_handlers(zend_mm_heap *heap,
  238:                                           void* (*_malloc)(size_t),
  239:                                           void  (*_free)(void*),
  240:                                           void* (*_realloc)(void*, size_t));
  241: 
  242: #endif
  243: 
  244: /*
  245:  * Local variables:
  246:  * tab-width: 4
  247:  * c-basic-offset: 4
  248:  * indent-tabs-mode: t
  249:  * End:
  250:  */

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