1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1998-2015 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 /* $Id$ */
21
22 #include <stdio.h>
23 #include "zend.h"
24 #include "zend_API.h"
25 #include "zend_globals.h"
26 #include "zend_constants.h"
27 #include "zend_list.h"
28
29
_zval_dtor_func(zval * zvalue ZEND_FILE_LINE_DC)30 ZEND_API void _zval_dtor_func(zval *zvalue ZEND_FILE_LINE_DC)
31 {
32 switch (Z_TYPE_P(zvalue) & IS_CONSTANT_TYPE_MASK) {
33 case IS_STRING:
34 case IS_CONSTANT:
35 CHECK_ZVAL_STRING_REL(zvalue);
36 STR_FREE_REL(zvalue->value.str.val);
37 break;
38 case IS_ARRAY:
39 case IS_CONSTANT_ARRAY: {
40 TSRMLS_FETCH();
41
42 if (zvalue->value.ht && (zvalue->value.ht != &EG(symbol_table))) {
43 /* break possible cycles */
44 Z_TYPE_P(zvalue) = IS_NULL;
45 zend_hash_destroy(zvalue->value.ht);
46 FREE_HASHTABLE(zvalue->value.ht);
47 }
48 }
49 break;
50 case IS_OBJECT:
51 {
52 TSRMLS_FETCH();
53
54 Z_OBJ_HT_P(zvalue)->del_ref(zvalue TSRMLS_CC);
55 }
56 break;
57 case IS_RESOURCE:
58 {
59 TSRMLS_FETCH();
60
61 /* destroy resource */
62 zend_list_delete(zvalue->value.lval);
63 }
64 break;
65 case IS_LONG:
66 case IS_DOUBLE:
67 case IS_BOOL:
68 case IS_NULL:
69 default:
70 return;
71 break;
72 }
73 }
74
75
_zval_internal_dtor(zval * zvalue ZEND_FILE_LINE_DC)76 ZEND_API void _zval_internal_dtor(zval *zvalue ZEND_FILE_LINE_DC)
77 {
78 switch (Z_TYPE_P(zvalue) & IS_CONSTANT_TYPE_MASK) {
79 case IS_STRING:
80 case IS_CONSTANT:
81 CHECK_ZVAL_STRING_REL(zvalue);
82 str_free(zvalue->value.str.val);
83 break;
84 case IS_ARRAY:
85 case IS_CONSTANT_ARRAY:
86 case IS_OBJECT:
87 case IS_RESOURCE:
88 zend_error(E_CORE_ERROR, "Internal zval's can't be arrays, objects or resources");
89 break;
90 case IS_LONG:
91 case IS_DOUBLE:
92 case IS_BOOL:
93 case IS_NULL:
94 default:
95 break;
96 }
97 }
98
99
zval_add_ref(zval ** p)100 ZEND_API void zval_add_ref(zval **p)
101 {
102 Z_ADDREF_PP(p);
103 }
104
105
_zval_copy_ctor_func(zval * zvalue ZEND_FILE_LINE_DC)106 ZEND_API void _zval_copy_ctor_func(zval *zvalue ZEND_FILE_LINE_DC)
107 {
108 switch (Z_TYPE_P(zvalue) & IS_CONSTANT_TYPE_MASK) {
109 case IS_RESOURCE: {
110 TSRMLS_FETCH();
111
112 zend_list_addref(zvalue->value.lval);
113 }
114 break;
115 case IS_BOOL:
116 case IS_LONG:
117 case IS_NULL:
118 break;
119 case IS_CONSTANT:
120 case IS_STRING:
121 CHECK_ZVAL_STRING_REL(zvalue);
122 if (!IS_INTERNED(zvalue->value.str.val)) {
123 zvalue->value.str.val = (char *) estrndup_rel(zvalue->value.str.val, zvalue->value.str.len);
124 }
125 break;
126 case IS_ARRAY:
127 case IS_CONSTANT_ARRAY: {
128 zval *tmp;
129 HashTable *original_ht = zvalue->value.ht;
130 HashTable *tmp_ht = NULL;
131 TSRMLS_FETCH();
132
133 if (zvalue->value.ht == &EG(symbol_table)) {
134 return; /* do nothing */
135 }
136 ALLOC_HASHTABLE_REL(tmp_ht);
137 zend_hash_init(tmp_ht, zend_hash_num_elements(original_ht), NULL, ZVAL_PTR_DTOR, 0);
138 zvalue->value.ht = tmp_ht;
139 zend_hash_copy(tmp_ht, original_ht, (copy_ctor_func_t) zval_add_ref, (void *) &tmp, sizeof(zval *));
140 tmp_ht->nNextFreeElement = original_ht->nNextFreeElement;
141 }
142 break;
143 case IS_OBJECT:
144 {
145 TSRMLS_FETCH();
146 Z_OBJ_HT_P(zvalue)->add_ref(zvalue TSRMLS_CC);
147 }
148 break;
149 }
150 }
151
152
zend_print_variable(zval * var)153 ZEND_API int zend_print_variable(zval *var)
154 {
155 return zend_print_zval(var, 0);
156 }
157
158
_zval_dtor_wrapper(zval * zvalue)159 ZEND_API void _zval_dtor_wrapper(zval *zvalue)
160 {
161 TSRMLS_FETCH();
162
163 GC_REMOVE_ZVAL_FROM_BUFFER(zvalue);
164 zval_dtor(zvalue);
165 }
166
167
168 #if ZEND_DEBUG
_zval_copy_ctor_wrapper(zval * zvalue)169 ZEND_API void _zval_copy_ctor_wrapper(zval *zvalue)
170 {
171 zval_copy_ctor(zvalue);
172 }
173
174
_zval_internal_dtor_wrapper(zval * zvalue)175 ZEND_API void _zval_internal_dtor_wrapper(zval *zvalue)
176 {
177 zval_internal_dtor(zvalue);
178 }
179
180
_zval_ptr_dtor_wrapper(zval ** zval_ptr)181 ZEND_API void _zval_ptr_dtor_wrapper(zval **zval_ptr)
182 {
183 zval_ptr_dtor(zval_ptr);
184 }
185
186
_zval_internal_ptr_dtor_wrapper(zval ** zval_ptr)187 ZEND_API void _zval_internal_ptr_dtor_wrapper(zval **zval_ptr)
188 {
189 zval_internal_ptr_dtor(zval_ptr);
190 }
191 #endif
192
zval_copy_static_var(zval ** p TSRMLS_DC,int num_args,va_list args,zend_hash_key * key)193 ZEND_API int zval_copy_static_var(zval **p TSRMLS_DC, int num_args, va_list args, zend_hash_key *key) /* {{{ */
194 {
195 HashTable *target = va_arg(args, HashTable*);
196 zend_bool is_ref;
197 zval *tmp;
198
199 if (Z_TYPE_PP(p) & (IS_LEXICAL_VAR|IS_LEXICAL_REF)) {
200 is_ref = Z_TYPE_PP(p) & IS_LEXICAL_REF;
201
202 if (!EG(active_symbol_table)) {
203 zend_rebuild_symbol_table(TSRMLS_C);
204 }
205 if (zend_hash_quick_find(EG(active_symbol_table), key->arKey, key->nKeyLength, key->h, (void **) &p) == FAILURE) {
206 if (is_ref) {
207 ALLOC_INIT_ZVAL(tmp);
208 Z_SET_ISREF_P(tmp);
209 zend_hash_quick_add(EG(active_symbol_table), key->arKey, key->nKeyLength, key->h, &tmp, sizeof(zval*), (void**)&p);
210 } else {
211 tmp = EG(uninitialized_zval_ptr);
212 zend_error(E_NOTICE,"Undefined variable: %s", key->arKey);
213 }
214 } else {
215 if (is_ref) {
216 SEPARATE_ZVAL_TO_MAKE_IS_REF(p);
217 tmp = *p;
218 } else if (Z_ISREF_PP(p)) {
219 ALLOC_INIT_ZVAL(tmp);
220 ZVAL_COPY_VALUE(tmp, *p);
221 zval_copy_ctor(tmp);
222 Z_SET_REFCOUNT_P(tmp, 0);
223 Z_UNSET_ISREF_P(tmp);
224 } else {
225 tmp = *p;
226 }
227 }
228 } else {
229 tmp = *p;
230 }
231 if (zend_hash_quick_add(target, key->arKey, key->nKeyLength, key->h, &tmp, sizeof(zval*), NULL) == SUCCESS) {
232 Z_ADDREF_P(tmp);
233 }
234 return ZEND_HASH_APPLY_KEEP;
235 }
236 /* }}} */
237
238 /*
239 * Local variables:
240 * tab-width: 4
241 * c-basic-offset: 4
242 * indent-tabs-mode: t
243 * End:
244 */
245
