Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tag: php-5.4.0alpha1
Fetching contributors…

Cannot retrieve contributors at this time

file 250 lines (205 sloc) 12.002 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250
/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2011 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> |
+----------------------------------------------------------------------+
*/

/* $Id$ */

#ifndef ZEND_ALLOC_H
#define ZEND_ALLOC_H

#include <stdio.h>

#include "../TSRM/TSRM.h"
#include "zend.h"

#ifndef ZEND_MM_ALIGNMENT
# define ZEND_MM_ALIGNMENT 8
# define ZEND_MM_ALIGNMENT_LOG2 3
#elif ZEND_MM_ALIGNMENT < 4
# undef ZEND_MM_ALIGNMENT
# undef ZEND_MM_ALIGNMENT_LOG2
# define ZEND_MM_ALIGNMENT 4
# define ZEND_MM_ALIGNMENT_LOG2 2
#endif

#define ZEND_MM_ALIGNMENT_MASK ~(ZEND_MM_ALIGNMENT-1)

#define ZEND_MM_ALIGNED_SIZE(size) (((size) + ZEND_MM_ALIGNMENT - 1) & ZEND_MM_ALIGNMENT_MASK)

typedef struct _zend_leak_info {
void *addr;
size_t size;
char *filename;
uint lineno;
char *orig_filename;
uint orig_lineno;
} zend_leak_info;

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 void *_safe_erealloc(void *ptr, size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
ZEND_API void *_safe_realloc(void *ptr, size_t nmemb, size_t size, size_t offset);
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;
ZEND_API size_t _zend_mem_block_size(void *ptr TSRMLS_DC ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);

/* 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 safe_erealloc(ptr, nmemb, size, offset) _safe_erealloc((ptr), (nmemb), (size), (offset) 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)
#define zend_mem_block_size(ptr) _zend_mem_block_size((ptr) TSRMLS_CC 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 safe_erealloc_rel(ptr, nmemb, size, offset) _safe_erealloc((ptr), (nmemb), (size), (offset) 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)
#define zend_mem_block_size_rel(ptr) _zend_mem_block_size((ptr) TSRMLS_CC ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)

inline static void * __zend_malloc(size_t len)
{
void *tmp = malloc(len);
if (tmp) {
return tmp;
}
fprintf(stderr, "Out of memory\n");
exit(1);
}

inline static void * __zend_calloc(size_t nmemb, size_t len)
{
void *tmp = _safe_malloc(nmemb, len, 0);
memset(tmp, 0, nmemb * len);
return tmp;
}

inline static void * __zend_realloc(void *p, size_t len)
{
p = realloc(p, len);
if (p) {
return p;
}
fprintf(stderr, "Out of memory\n");
exit(1);
}


/* Selective persistent/non persistent allocation macros */
#define pemalloc(size, persistent) ((persistent)?__zend_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)?__zend_calloc((nmemb), (size)):ecalloc((nmemb), (size)))
#define perealloc(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc((ptr), (size)))
#define safe_perealloc(ptr, nmemb, size, offset, persistent) ((persistent)?_safe_realloc((ptr), (nmemb), (size), (offset)):safe_erealloc((ptr), (nmemb), (size), (offset)))
#define perealloc_recoverable(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc_recoverable((ptr), (size)))
#define pestrdup(s, persistent) ((persistent)?strdup(s):estrdup(s))
#define pestrndup(s, length, persistent) ((persistent)?zend_strndup((s),(length)):estrndup((s),(length)))

#define pemalloc_rel(size, persistent) ((persistent)?__zend_malloc(size):emalloc_rel(size))
#define pefree_rel(ptr, persistent) ((persistent)?free(ptr):efree_rel(ptr))
#define pecalloc_rel(nmemb, size, persistent) ((persistent)?__zend_calloc((nmemb), (size)):ecalloc_rel((nmemb), (size)))
#define perealloc_rel(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc_rel((ptr), (size)))
#define perealloc_recoverable_rel(ptr, size, persistent) ((persistent)?__zend_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)):STR_EMPTY_ALLOC())
#define safe_estrndup(ptr, len) ((ptr)?(estrndup((ptr), (len))):STR_EMPTY_ALLOC())

ZEND_API int zend_set_memory_limit(size_t memory_limit);

ZEND_API void start_memory_manager(TSRMLS_D);
ZEND_API void shutdown_memory_manager(int silent, int full_shutdown TSRMLS_DC);
ZEND_API int is_zend_mm(TSRMLS_D);

#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

ZEND_API size_t zend_memory_usage(int real_usage TSRMLS_DC);
ZEND_API size_t zend_memory_peak_usage(int real_usage TSRMLS_DC);

END_EXTERN_C()

/* fast cache for zval's */
#define ALLOC_ZVAL(z) \
(z) = (zval *) emalloc(sizeof(zval))

#define FREE_ZVAL(z) \
efree_rel(z)

#define ALLOC_ZVAL_REL(z) \
(z) = (zval *) emalloc_rel(sizeof(zval))

#define FREE_ZVAL_REL(z) \
efree_rel(z)

/* fast cache for HashTables */
#define ALLOC_HASHTABLE(ht) \
(ht) = (HashTable *) emalloc(sizeof(HashTable))

#define FREE_HASHTABLE(ht) \
efree(ht)

#define ALLOC_HASHTABLE_REL(ht) \
(ht) = (HashTable *) emalloc_rel(sizeof(HashTable))

#define FREE_HASHTABLE_REL(ht) \
efree_rel(ht)

/* Heap functions */
typedef struct _zend_mm_heap zend_mm_heap;

ZEND_API zend_mm_heap *zend_mm_startup(void);
ZEND_API void zend_mm_shutdown(zend_mm_heap *heap, int full_shutdown, int silent TSRMLS_DC);
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;
ZEND_API void _zend_mm_free(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
ZEND_API void *_zend_mm_realloc(zend_mm_heap *heap, void *p, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
ZEND_API size_t _zend_mm_block_size(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);

#define zend_mm_alloc(heap, size) _zend_mm_alloc((heap), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define zend_mm_free(heap, p) _zend_mm_free((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define zend_mm_realloc(heap, p, size) _zend_mm_realloc((heap), (p), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define zend_mm_block_size(heap, p) _zend_mm_block_size((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)

#define zend_mm_alloc_rel(heap, size) _zend_mm_alloc((heap), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
#define zend_mm_free_rel(heap, p) _zend_mm_free((heap), (p) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
#define zend_mm_realloc_rel(heap, p, size) _zend_mm_realloc((heap), (p), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC)
#define zend_mm_block_size_rel(heap, p) _zend_mm_block_size((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)

/* Heaps with user defined storage */
typedef struct _zend_mm_storage zend_mm_storage;

typedef struct _zend_mm_segment {
size_t size;
struct _zend_mm_segment *next_segment;
} zend_mm_segment;

typedef struct _zend_mm_mem_handlers {
const char *name;
zend_mm_storage* (*init)(void *params);
void (*dtor)(zend_mm_storage *storage);
void (*compact)(zend_mm_storage *storage);
zend_mm_segment* (*_alloc)(zend_mm_storage *storage, size_t size);
zend_mm_segment* (*_realloc)(zend_mm_storage *storage, zend_mm_segment *ptr, size_t size);
void (*_free)(zend_mm_storage *storage, zend_mm_segment *ptr);
} zend_mm_mem_handlers;

struct _zend_mm_storage {
const zend_mm_mem_handlers *handlers;
void *data;
};

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);
ZEND_API zend_mm_heap *zend_mm_set_heap(zend_mm_heap *new_heap TSRMLS_DC);
ZEND_API zend_mm_storage *zend_mm_get_storage(zend_mm_heap *heap);

ZEND_API void zend_mm_set_custom_handlers(zend_mm_heap *heap,
                                          void* (*_malloc)(size_t),
                                          void (*_free)(void*),
                                          void* (*_realloc)(void*, size_t));

#endif

/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
Something went wrong with that request. Please try again.