Zend/zend_string.h

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This source file includes following definitions.
_str_erealloc
   1 /*
   2    +----------------------------------------------------------------------+
   3    | Zend Engine                                                          |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 1998-2016 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: Dmitry Stogov <dmitry@zend.com>                             |
  16    +----------------------------------------------------------------------+
  17 */
  18 
  19 /* $Id: $ */
  20 
  21 #ifndef ZEND_STRING_H
  22 #define ZEND_STRING_H
  23 
  24 #include "zend.h"
  25 
  26 BEGIN_EXTERN_C()
  27 ZEND_API extern const char *(*zend_new_interned_string)(const char *str, int len, int free_src TSRMLS_DC);
  28 ZEND_API extern void (*zend_interned_strings_snapshot)(TSRMLS_D);
  29 ZEND_API extern void (*zend_interned_strings_restore)(TSRMLS_D);
  30 
  31 void zend_interned_strings_init(TSRMLS_D);
  32 void zend_interned_strings_dtor(TSRMLS_D);
  33 END_EXTERN_C()
  34 
  35 #ifndef ZTS
  36 
  37 #define IS_INTERNED(s) \
  38         (((s) >= CG(interned_strings_start)) && ((s) < CG(interned_strings_end)))
  39 
  40 #else
  41 
  42 #define IS_INTERNED(s) \
  43         (0)
  44 
  45 #endif
  46 
  47 #define INTERNED_LEN(s) \
  48         (((Bucket*)(((char*)(s))-sizeof(Bucket)))->nKeyLength)
  49 
  50 #define INTERNED_HASH(s) \
  51         (((Bucket*)(((char*)(s))-sizeof(Bucket)))->h)
  52 
  53 #define str_efree(s) do { \
  54                 if (!IS_INTERNED(s)) { \
  55                         efree((char*)s); \
  56                 } \
  57         } while (0)
  58 
  59 #define str_efree_rel(s) do { \
  60                 if (!IS_INTERNED(s)) { \
  61                         efree_rel((char *)s); \
  62                 } \
  63         } while (0)
  64 
  65 #define str_free(s) do { \
  66                 if (!IS_INTERNED(s)) { \
  67                         free((char*)s); \
  68                 } \
  69         } while (0)
  70 
  71 #define str_erealloc(str, new_len) \
  72         (IS_INTERNED(str) \
  73          ? _str_erealloc(str, new_len, INTERNED_LEN(str)) \
  74          : erealloc(str, new_len))
  75 
  76 static inline char *_str_erealloc(char *str, size_t new_len, size_t old_len) {
  77         char *buf = (char *) emalloc(new_len);
  78         memcpy(buf, str, old_len);
  79         return buf;
  80 }
  81 
  82 #define str_estrndup(str, len) \
  83         (IS_INTERNED(str) ? (str) : estrndup((str), (len)))
  84 
  85 #define str_strndup(str, len) \
  86         (IS_INTERNED(str) ? (str) : zend_strndup((str), (len)));
  87 
  88 #define str_hash(str, len) \
  89         (IS_INTERNED(str) ? INTERNED_HASH(str) : zend_hash_func((str), (len)+1))
  90 
  91 
  92 #endif /* ZEND_STRING_H */
  93 
  94 /*
  95  * Local variables:
  96  * tab-width: 4
  97  * c-basic-offset: 4
  98  * indent-tabs-mode: t
  99  * End:
 100  */
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root/Zend/zend_string.h

INCLUDED FROM

DEFINITIONS
