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
|
/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 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@php.net> |
| Zeev Suraski <zeev@php.net> |
| Dmitry Stogov <dmitry@php.net> |
+----------------------------------------------------------------------+
*/
#include <stdio.h>
#include "zend.h"
#include "zend_API.h"
#include "zend_ast.h"
#include "zend_globals.h"
#include "zend_constants.h"
#include "zend_list.h"
#if ZEND_DEBUG
static void ZEND_FASTCALL zend_string_destroy(zend_string *str);
#else
# define zend_string_destroy _efree
#endif
static void ZEND_FASTCALL zend_reference_destroy(zend_reference *ref);
static void ZEND_FASTCALL zend_empty_destroy(zend_reference *ref);
typedef void (ZEND_FASTCALL *zend_rc_dtor_func_t)(zend_refcounted *p);
static const zend_rc_dtor_func_t zend_rc_dtor_func[] = {
/* IS_UNDEF */ (zend_rc_dtor_func_t)zend_empty_destroy,
/* IS_NULL */ (zend_rc_dtor_func_t)zend_empty_destroy,
/* IS_FALSE */ (zend_rc_dtor_func_t)zend_empty_destroy,
/* IS_TRUE */ (zend_rc_dtor_func_t)zend_empty_destroy,
/* IS_LONG */ (zend_rc_dtor_func_t)zend_empty_destroy,
/* IS_DOUBLE */ (zend_rc_dtor_func_t)zend_empty_destroy,
/* IS_STRING */ (zend_rc_dtor_func_t)zend_string_destroy,
/* IS_ARRAY */ (zend_rc_dtor_func_t)zend_array_destroy,
/* IS_OBJECT */ (zend_rc_dtor_func_t)zend_objects_store_del,
/* IS_RESOURCE */ (zend_rc_dtor_func_t)zend_list_free,
/* IS_REFERENCE */ (zend_rc_dtor_func_t)zend_reference_destroy,
/* IS_CONSTANT_AST */ (zend_rc_dtor_func_t)zend_ast_ref_destroy
};
ZEND_API void ZEND_FASTCALL rc_dtor_func(zend_refcounted *p)
{
ZEND_ASSERT(GC_TYPE(p) <= IS_CONSTANT_AST);
zend_rc_dtor_func[GC_TYPE(p)](p);
}
#if ZEND_DEBUG
static void ZEND_FASTCALL zend_string_destroy(zend_string *str)
{
CHECK_ZVAL_STRING(str);
ZEND_ASSERT(!ZSTR_IS_INTERNED(str));
ZEND_ASSERT(GC_REFCOUNT(str) == 0);
ZEND_ASSERT(!(GC_FLAGS(str) & IS_STR_PERSISTENT));
efree(str);
}
#endif
static void ZEND_FASTCALL zend_reference_destroy(zend_reference *ref)
{
ZEND_ASSERT(!ZEND_REF_HAS_TYPE_SOURCES(ref));
i_zval_ptr_dtor(&ref->val);
efree_size(ref, sizeof(zend_reference));
}
static void ZEND_FASTCALL zend_empty_destroy(zend_reference *ref)
{
}
ZEND_API void zval_ptr_dtor(zval *zval_ptr) /* {{{ */
{
i_zval_ptr_dtor(zval_ptr);
}
/* }}} */
ZEND_API void zval_internal_ptr_dtor(zval *zval_ptr) /* {{{ */
{
if (Z_REFCOUNTED_P(zval_ptr)) {
zend_refcounted *ref = Z_COUNTED_P(zval_ptr);
if (GC_DELREF(ref) == 0) {
if (Z_TYPE_P(zval_ptr) == IS_STRING) {
zend_string *str = (zend_string*)ref;
CHECK_ZVAL_STRING(str);
ZEND_ASSERT(!ZSTR_IS_INTERNED(str));
ZEND_ASSERT((GC_FLAGS(str) & IS_STR_PERSISTENT));
free(str);
} else {
zend_error_noreturn(E_CORE_ERROR, "Internal zval's can't be arrays, objects, resources or reference");
}
}
}
}
/* }}} */
/* This function should only be used as a copy constructor, i.e. it
* should only be called AFTER a zval has been copied to another
* location using ZVAL_COPY_VALUE. Do not call it before copying,
* otherwise a reference may be leaked. */
ZEND_API void zval_add_ref(zval *p)
{
if (Z_REFCOUNTED_P(p)) {
if (Z_ISREF_P(p) && Z_REFCOUNT_P(p) == 1) {
ZVAL_COPY(p, Z_REFVAL_P(p));
} else {
Z_ADDREF_P(p);
}
}
}
ZEND_API void ZEND_FASTCALL zval_copy_ctor_func(zval *zvalue)
{
if (EXPECTED(Z_TYPE_P(zvalue) == IS_ARRAY)) {
ZVAL_ARR(zvalue, zend_array_dup(Z_ARRVAL_P(zvalue)));
} else if (EXPECTED(Z_TYPE_P(zvalue) == IS_STRING)) {
ZEND_ASSERT(!ZSTR_IS_INTERNED(Z_STR_P(zvalue)));
CHECK_ZVAL_STRING(Z_STR_P(zvalue));
ZVAL_NEW_STR(zvalue, zend_string_dup(Z_STR_P(zvalue), 0));
}
}
|
