1: /*
2: +----------------------------------------------------------------------+
3: | Zend Engine |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1998-2012 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_execute_API.c,v 1.1.1.2 2012/05/29 12:34:35 misho Exp $ */
21:
22: #include <stdio.h>
23: #include <signal.h>
24:
25: #include "zend.h"
26: #include "zend_compile.h"
27: #include "zend_execute.h"
28: #include "zend_API.h"
29: #include "zend_ptr_stack.h"
30: #include "zend_constants.h"
31: #include "zend_extensions.h"
32: #include "zend_exceptions.h"
33: #include "zend_closures.h"
34: #include "zend_vm.h"
35: #include "zend_float.h"
36: #ifdef HAVE_SYS_TIME_H
37: #include <sys/time.h>
38: #endif
39:
40: ZEND_API void (*zend_execute)(zend_op_array *op_array TSRMLS_DC);
41: ZEND_API void (*zend_execute_internal)(zend_execute_data *execute_data_ptr, int return_value_used TSRMLS_DC);
42:
43: /* true globals */
44: ZEND_API const zend_fcall_info empty_fcall_info = { 0, NULL, NULL, NULL, NULL, 0, NULL, NULL, 0 };
45: ZEND_API const zend_fcall_info_cache empty_fcall_info_cache = { 0, NULL, NULL, NULL, NULL };
46:
47: #ifdef ZEND_WIN32
48: #include <process.h>
49: static WNDCLASS wc;
50: static HWND timeout_window;
51: static HANDLE timeout_thread_event;
52: static HANDLE timeout_thread_handle;
53: static DWORD timeout_thread_id;
54: static int timeout_thread_initialized=0;
55: #endif
56:
57: #if 0&&ZEND_DEBUG
58: static void (*original_sigsegv_handler)(int);
59: static void zend_handle_sigsegv(int dummy) /* {{{ */
60: {
61: fflush(stdout);
62: fflush(stderr);
63: if (original_sigsegv_handler == zend_handle_sigsegv) {
64: signal(SIGSEGV, original_sigsegv_handler);
65: } else {
66: signal(SIGSEGV, SIG_DFL);
67: }
68: {
69: TSRMLS_FETCH();
70:
71: fprintf(stderr, "SIGSEGV caught on opcode %d on opline %d of %s() at %s:%d\n\n",
72: active_opline->opcode,
73: active_opline-EG(active_op_array)->opcodes,
74: get_active_function_name(TSRMLS_C),
75: zend_get_executed_filename(TSRMLS_C),
76: zend_get_executed_lineno(TSRMLS_C));
77: /* See http://support.microsoft.com/kb/190351 */
78: #ifdef PHP_WIN32
79: fflush(stderr);
80: #endif
81: }
82: if (original_sigsegv_handler!=zend_handle_sigsegv) {
83: original_sigsegv_handler(dummy);
84: }
85: }
86: /* }}} */
87: #endif
88:
89: static void zend_extension_activator(zend_extension *extension TSRMLS_DC) /* {{{ */
90: {
91: if (extension->activate) {
92: extension->activate();
93: }
94: }
95: /* }}} */
96:
97: static void zend_extension_deactivator(zend_extension *extension TSRMLS_DC) /* {{{ */
98: {
99: if (extension->deactivate) {
100: extension->deactivate();
101: }
102: }
103: /* }}} */
104:
105: static int clean_non_persistent_function(zend_function *function TSRMLS_DC) /* {{{ */
106: {
107: return (function->type == ZEND_INTERNAL_FUNCTION) ? ZEND_HASH_APPLY_STOP : ZEND_HASH_APPLY_REMOVE;
108: }
109: /* }}} */
110:
111: static int clean_non_persistent_function_full(zend_function *function TSRMLS_DC) /* {{{ */
112: {
113: return (function->type == ZEND_INTERNAL_FUNCTION) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE;
114: }
115: /* }}} */
116:
117: static int clean_non_persistent_class(zend_class_entry **ce TSRMLS_DC) /* {{{ */
118: {
119: return ((*ce)->type == ZEND_INTERNAL_CLASS) ? ZEND_HASH_APPLY_STOP : ZEND_HASH_APPLY_REMOVE;
120: }
121: /* }}} */
122:
123: static int clean_non_persistent_class_full(zend_class_entry **ce TSRMLS_DC) /* {{{ */
124: {
125: return ((*ce)->type == ZEND_INTERNAL_CLASS) ? ZEND_HASH_APPLY_KEEP : ZEND_HASH_APPLY_REMOVE;
126: }
127: /* }}} */
128:
129: void init_executor(TSRMLS_D) /* {{{ */
130: {
131: zend_init_fpu(TSRMLS_C);
132:
133: INIT_ZVAL(EG(uninitialized_zval));
134: /* trick to make uninitialized_zval never be modified, passed by ref, etc. */
135: Z_ADDREF(EG(uninitialized_zval));
136: INIT_ZVAL(EG(error_zval));
137: EG(uninitialized_zval_ptr)=&EG(uninitialized_zval);
138: EG(error_zval_ptr)=&EG(error_zval);
139: zend_ptr_stack_init(&EG(arg_types_stack));
140: /* destroys stack frame, therefore makes core dumps worthless */
141: #if 0&&ZEND_DEBUG
142: original_sigsegv_handler = signal(SIGSEGV, zend_handle_sigsegv);
143: #endif
144: EG(return_value_ptr_ptr) = NULL;
145:
146: EG(symtable_cache_ptr) = EG(symtable_cache) - 1;
147: EG(symtable_cache_limit) = EG(symtable_cache) + SYMTABLE_CACHE_SIZE - 1;
148: EG(no_extensions) = 0;
149:
150: EG(function_table) = CG(function_table);
151: EG(class_table) = CG(class_table);
152:
153: EG(in_execution) = 0;
154: EG(in_autoload) = NULL;
155: EG(autoload_func) = NULL;
156: EG(error_handling) = EH_NORMAL;
157:
158: zend_vm_stack_init(TSRMLS_C);
159: zend_vm_stack_push((void *) NULL TSRMLS_CC);
160:
161: zend_hash_init(&EG(symbol_table), 50, NULL, ZVAL_PTR_DTOR, 0);
162: EG(active_symbol_table) = &EG(symbol_table);
163:
164: zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_activator TSRMLS_CC);
165: EG(opline_ptr) = NULL;
166:
167: zend_hash_init(&EG(included_files), 5, NULL, NULL, 0);
168:
169: EG(ticks_count) = 0;
170:
171: EG(user_error_handler) = NULL;
172:
173: EG(current_execute_data) = NULL;
174:
175: zend_stack_init(&EG(user_error_handlers_error_reporting));
176: zend_ptr_stack_init(&EG(user_error_handlers));
177: zend_ptr_stack_init(&EG(user_exception_handlers));
178:
179: zend_objects_store_init(&EG(objects_store), 1024);
180:
181: EG(full_tables_cleanup) = 0;
182: #ifdef ZEND_WIN32
183: EG(timed_out) = 0;
184: #endif
185:
186: EG(exception) = NULL;
187: EG(prev_exception) = NULL;
188:
189: EG(scope) = NULL;
190: EG(called_scope) = NULL;
191:
192: EG(This) = NULL;
193:
194: EG(active_op_array) = NULL;
195:
196: EG(active) = 1;
197: EG(start_op) = NULL;
198: }
199: /* }}} */
200:
201: static int zval_call_destructor(zval **zv TSRMLS_DC) /* {{{ */
202: {
203: if (Z_TYPE_PP(zv) == IS_OBJECT && Z_REFCOUNT_PP(zv) == 1) {
204: return ZEND_HASH_APPLY_REMOVE;
205: } else {
206: return ZEND_HASH_APPLY_KEEP;
207: }
208: }
209: /* }}} */
210:
211: void shutdown_destructors(TSRMLS_D) /* {{{ */
212: {
213: zend_try {
214: int symbols;
215: do {
216: symbols = zend_hash_num_elements(&EG(symbol_table));
217: zend_hash_reverse_apply(&EG(symbol_table), (apply_func_t) zval_call_destructor TSRMLS_CC);
218: } while (symbols != zend_hash_num_elements(&EG(symbol_table)));
219: zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC);
220: } zend_catch {
221: /* if we couldn't destruct cleanly, mark all objects as destructed anyway */
222: zend_objects_store_mark_destructed(&EG(objects_store) TSRMLS_CC);
223: } zend_end_try();
224: }
225: /* }}} */
226:
227: void shutdown_executor(TSRMLS_D) /* {{{ */
228: {
229: zend_try {
230:
231: /* Removed because this can not be safely done, e.g. in this situation:
232: Object 1 creates object 2
233: Object 3 holds reference to object 2.
234: Now when 1 and 2 are destroyed, 3 can still access 2 in its destructor, with
235: very problematic results */
236: /* zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC); */
237:
238: /* Moved after symbol table cleaners, because some of the cleaners can call
239: destructors, which would use EG(symtable_cache_ptr) and thus leave leaks */
240: /* while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
241: zend_hash_destroy(*EG(symtable_cache_ptr));
242: efree(*EG(symtable_cache_ptr));
243: EG(symtable_cache_ptr)--;
244: }
245: */
246: zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_deactivator TSRMLS_CC);
247: zend_hash_graceful_reverse_destroy(&EG(symbol_table));
248: } zend_end_try();
249:
250: zend_try {
251: zval *zeh;
252: /* remove error handlers before destroying classes and functions,
253: * so that if handler used some class, crash would not happen */
254: if (EG(user_error_handler)) {
255: zeh = EG(user_error_handler);
256: EG(user_error_handler) = NULL;
257: zval_dtor(zeh);
258: FREE_ZVAL(zeh);
259: }
260:
261: if (EG(user_exception_handler)) {
262: zeh = EG(user_exception_handler);
263: EG(user_exception_handler) = NULL;
264: zval_dtor(zeh);
265: FREE_ZVAL(zeh);
266: }
267:
268: zend_stack_destroy(&EG(user_error_handlers_error_reporting));
269: zend_stack_init(&EG(user_error_handlers_error_reporting));
270: zend_ptr_stack_clean(&EG(user_error_handlers), ZVAL_DESTRUCTOR, 1);
271: zend_ptr_stack_clean(&EG(user_exception_handlers), ZVAL_DESTRUCTOR, 1);
272: } zend_end_try();
273:
274: zend_try {
275: /* Cleanup static data for functions and arrays.
276: * We need a separate cleanup stage because of the following problem:
277: * Suppose we destroy class X, which destroys the class's function table,
278: * and in the function table we have function foo() that has static $bar.
279: * Now if an object of class X is assigned to $bar, its destructor will be
280: * called and will fail since X's function table is in mid-destruction.
281: * So we want first of all to clean up all data and then move to tables destruction.
282: * Note that only run-time accessed data need to be cleaned up, pre-defined data can
283: * not contain objects and thus are not probelmatic */
284: if (EG(full_tables_cleanup)) {
285: zend_hash_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data_full TSRMLS_CC);
286: zend_hash_apply(EG(class_table), (apply_func_t) zend_cleanup_class_data TSRMLS_CC);
287: } else {
288: zend_hash_reverse_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data TSRMLS_CC);
289: zend_hash_reverse_apply(EG(class_table), (apply_func_t) zend_cleanup_user_class_data TSRMLS_CC);
290: zend_cleanup_internal_classes(TSRMLS_C);
291: }
292: } zend_end_try();
293:
294: zend_try {
295: zend_vm_stack_destroy(TSRMLS_C);
296:
297: zend_objects_store_free_object_storage(&EG(objects_store) TSRMLS_CC);
298:
299: /* Destroy all op arrays */
300: if (EG(full_tables_cleanup)) {
301: zend_hash_reverse_apply(EG(function_table), (apply_func_t) clean_non_persistent_function_full TSRMLS_CC);
302: zend_hash_reverse_apply(EG(class_table), (apply_func_t) clean_non_persistent_class_full TSRMLS_CC);
303: } else {
304: zend_hash_reverse_apply(EG(function_table), (apply_func_t) clean_non_persistent_function TSRMLS_CC);
305: zend_hash_reverse_apply(EG(class_table), (apply_func_t) clean_non_persistent_class TSRMLS_CC);
306: }
307:
308: while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
309: zend_hash_destroy(*EG(symtable_cache_ptr));
310: FREE_HASHTABLE(*EG(symtable_cache_ptr));
311: EG(symtable_cache_ptr)--;
312: }
313: } zend_end_try();
314:
315: zend_try {
316: clean_non_persistent_constants(TSRMLS_C);
317: } zend_end_try();
318:
319: zend_try {
320: #if 0&&ZEND_DEBUG
321: signal(SIGSEGV, original_sigsegv_handler);
322: #endif
323:
324: zend_hash_destroy(&EG(included_files));
325:
326: zend_ptr_stack_destroy(&EG(arg_types_stack));
327: zend_stack_destroy(&EG(user_error_handlers_error_reporting));
328: zend_ptr_stack_destroy(&EG(user_error_handlers));
329: zend_ptr_stack_destroy(&EG(user_exception_handlers));
330: zend_objects_store_destroy(&EG(objects_store));
331: if (EG(in_autoload)) {
332: zend_hash_destroy(EG(in_autoload));
333: FREE_HASHTABLE(EG(in_autoload));
334: }
335: } zend_end_try();
336:
337: zend_shutdown_fpu(TSRMLS_C);
338:
339: EG(active) = 0;
340: }
341: /* }}} */
342:
343: /* return class name and "::" or "". */
344: ZEND_API const char *get_active_class_name(const char **space TSRMLS_DC) /* {{{ */
345: {
346: if (!zend_is_executing(TSRMLS_C)) {
347: if (space) {
348: *space = "";
349: }
350: return "";
351: }
352: switch (EG(current_execute_data)->function_state.function->type) {
353: case ZEND_USER_FUNCTION:
354: case ZEND_INTERNAL_FUNCTION:
355: {
356: zend_class_entry *ce = EG(current_execute_data)->function_state.function->common.scope;
357:
358: if (space) {
359: *space = ce ? "::" : "";
360: }
361: return ce ? ce->name : "";
362: }
363: default:
364: if (space) {
365: *space = "";
366: }
367: return "";
368: }
369: }
370: /* }}} */
371:
372: ZEND_API const char *get_active_function_name(TSRMLS_D) /* {{{ */
373: {
374: if (!zend_is_executing(TSRMLS_C)) {
375: return NULL;
376: }
377: switch (EG(current_execute_data)->function_state.function->type) {
378: case ZEND_USER_FUNCTION: {
379: const char *function_name = ((zend_op_array *) EG(current_execute_data)->function_state.function)->function_name;
380:
381: if (function_name) {
382: return function_name;
383: } else {
384: return "main";
385: }
386: }
387: break;
388: case ZEND_INTERNAL_FUNCTION:
389: return ((zend_internal_function *) EG(current_execute_data)->function_state.function)->function_name;
390: break;
391: default:
392: return NULL;
393: }
394: }
395: /* }}} */
396:
397: ZEND_API const char *zend_get_executed_filename(TSRMLS_D) /* {{{ */
398: {
399: if (EG(active_op_array)) {
400: return EG(active_op_array)->filename;
401: } else {
402: return "[no active file]";
403: }
404: }
405: /* }}} */
406:
407: ZEND_API uint zend_get_executed_lineno(TSRMLS_D) /* {{{ */
408: {
409: if(EG(exception) && EG(opline_ptr) && active_opline->opcode == ZEND_HANDLE_EXCEPTION &&
410: active_opline->lineno == 0 && EG(opline_before_exception)) {
411: return EG(opline_before_exception)->lineno;
412: }
413: if (EG(opline_ptr)) {
414: return active_opline->lineno;
415: } else {
416: return 0;
417: }
418: }
419: /* }}} */
420:
421: ZEND_API zend_bool zend_is_executing(TSRMLS_D) /* {{{ */
422: {
423: return EG(in_execution);
424: }
425: /* }}} */
426:
427: ZEND_API void _zval_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) /* {{{ */
428: {
429: #if DEBUG_ZEND>=2
430: printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);
431: #endif
432: Z_DELREF_PP(zval_ptr);
433: if (Z_REFCOUNT_PP(zval_ptr) == 0) {
434: TSRMLS_FETCH();
435:
436: if (*zval_ptr != &EG(uninitialized_zval)) {
437: GC_REMOVE_ZVAL_FROM_BUFFER(*zval_ptr);
438: zval_dtor(*zval_ptr);
439: efree_rel(*zval_ptr);
440: }
441: } else {
442: TSRMLS_FETCH();
443:
444: if (Z_REFCOUNT_PP(zval_ptr) == 1) {
445: Z_UNSET_ISREF_PP(zval_ptr);
446: }
447:
448: GC_ZVAL_CHECK_POSSIBLE_ROOT(*zval_ptr);
449: }
450: }
451: /* }}} */
452:
453: ZEND_API void _zval_internal_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) /* {{{ */
454: {
455: #if DEBUG_ZEND>=2
456: printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);
457: #endif
458: Z_DELREF_PP(zval_ptr);
459: if (Z_REFCOUNT_PP(zval_ptr) == 0) {
460: zval_internal_dtor(*zval_ptr);
461: free(*zval_ptr);
462: } else if (Z_REFCOUNT_PP(zval_ptr) == 1) {
463: Z_UNSET_ISREF_PP(zval_ptr);
464: }
465: }
466: /* }}} */
467:
468: ZEND_API int zend_is_true(zval *op) /* {{{ */
469: {
470: return i_zend_is_true(op);
471: }
472: /* }}} */
473:
474: #include "../TSRM/tsrm_strtok_r.h"
475:
476: #define IS_VISITED_CONSTANT IS_CONSTANT_INDEX
477: #define IS_CONSTANT_VISITED(p) (Z_TYPE_P(p) & IS_VISITED_CONSTANT)
478: #define Z_REAL_TYPE_P(p) (Z_TYPE_P(p) & ~IS_VISITED_CONSTANT)
479: #define MARK_CONSTANT_VISITED(p) Z_TYPE_P(p) |= IS_VISITED_CONSTANT
480:
481: static void zval_deep_copy(zval **p)
482: {
483: zval *value;
484:
485: ALLOC_ZVAL(value);
486: *value = **p;
487: Z_TYPE_P(value) &= ~IS_CONSTANT_INDEX;
488: zval_copy_ctor(value);
489: Z_TYPE_P(value) = Z_TYPE_PP(p);
490: INIT_PZVAL(value);
491: *p = value;
492: }
493:
494: ZEND_API int zval_update_constant_ex(zval **pp, void *arg, zend_class_entry *scope TSRMLS_DC) /* {{{ */
495: {
496: zval *p = *pp;
497: zend_bool inline_change = (zend_bool) (zend_uintptr_t) arg;
498: zval const_value;
499: char *colon;
500:
501: if (IS_CONSTANT_VISITED(p)) {
502: zend_error(E_ERROR, "Cannot declare self-referencing constant '%s'", Z_STRVAL_P(p));
503: } else if ((Z_TYPE_P(p) & IS_CONSTANT_TYPE_MASK) == IS_CONSTANT) {
504: int refcount;
505: zend_uchar is_ref;
506:
507: SEPARATE_ZVAL_IF_NOT_REF(pp);
508: p = *pp;
509:
510: MARK_CONSTANT_VISITED(p);
511:
512: refcount = Z_REFCOUNT_P(p);
513: is_ref = Z_ISREF_P(p);
514:
515: if (!zend_get_constant_ex(p->value.str.val, p->value.str.len, &const_value, scope, Z_REAL_TYPE_P(p) TSRMLS_CC)) {
516: char *actual = Z_STRVAL_P(p);
517:
518: if ((colon = (char*)zend_memrchr(Z_STRVAL_P(p), ':', Z_STRLEN_P(p)))) {
519: zend_error(E_ERROR, "Undefined class constant '%s'", Z_STRVAL_P(p));
520: Z_STRLEN_P(p) -= ((colon - Z_STRVAL_P(p)) + 1);
521: if (inline_change) {
522: colon = estrndup(colon, Z_STRLEN_P(p));
523: str_efree(Z_STRVAL_P(p));
524: Z_STRVAL_P(p) = colon;
525: } else {
526: Z_STRVAL_P(p) = colon + 1;
527: }
528: } else {
529: char *save = actual, *slash;
530: int actual_len = Z_STRLEN_P(p);
531: if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) && (slash = (char *)zend_memrchr(actual, '\\', actual_len))) {
532: actual = slash + 1;
533: actual_len -= (actual - Z_STRVAL_P(p));
534: if (inline_change) {
535: actual = estrndup(actual, actual_len);
536: Z_STRVAL_P(p) = actual;
537: Z_STRLEN_P(p) = actual_len;
538: }
539: }
540: if (actual[0] == '\\') {
541: if (inline_change) {
542: memmove(Z_STRVAL_P(p), Z_STRVAL_P(p)+1, Z_STRLEN_P(p));
543: --Z_STRLEN_P(p);
544: } else {
545: ++actual;
546: }
547: --actual_len;
548: }
549: if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) == 0) {
550: int fix_save = 0;
551: if (save[0] == '\\') {
552: save++;
553: fix_save = 1;
554: }
555: zend_error(E_ERROR, "Undefined constant '%s'", save);
556: if (fix_save) {
557: save--;
558: }
559: if (inline_change && !IS_INTERNED(save)) {
560: efree(save);
561: }
562: save = NULL;
563: }
564: if (inline_change && save && save != actual && !IS_INTERNED(save)) {
565: efree(save);
566: }
567: zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", actual, actual);
568: p->type = IS_STRING;
569: if (!inline_change) {
570: Z_STRVAL_P(p) = actual;
571: Z_STRLEN_P(p) = actual_len;
572: zval_copy_ctor(p);
573: }
574: }
575: } else {
576: if (inline_change) {
577: STR_FREE(Z_STRVAL_P(p));
578: }
579: *p = const_value;
580: }
581:
582: Z_SET_REFCOUNT_P(p, refcount);
583: Z_SET_ISREF_TO_P(p, is_ref);
584: } else if (Z_TYPE_P(p) == IS_CONSTANT_ARRAY) {
585: zval **element, *new_val;
586: char *str_index;
587: uint str_index_len;
588: ulong num_index;
589: int ret;
590:
591: SEPARATE_ZVAL_IF_NOT_REF(pp);
592: p = *pp;
593: Z_TYPE_P(p) = IS_ARRAY;
594:
595: if (!inline_change) {
596: zval *tmp;
597: HashTable *tmp_ht = NULL;
598:
599: ALLOC_HASHTABLE(tmp_ht);
600: zend_hash_init(tmp_ht, zend_hash_num_elements(Z_ARRVAL_P(p)), NULL, ZVAL_PTR_DTOR, 0);
601: zend_hash_copy(tmp_ht, Z_ARRVAL_P(p), (copy_ctor_func_t) zval_deep_copy, (void *) &tmp, sizeof(zval *));
602: Z_ARRVAL_P(p) = tmp_ht;
603: }
604:
605: /* First go over the array and see if there are any constant indices */
606: zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));
607: while (zend_hash_get_current_data(Z_ARRVAL_P(p), (void **) &element) == SUCCESS) {
608: if (!(Z_TYPE_PP(element) & IS_CONSTANT_INDEX)) {
609: zend_hash_move_forward(Z_ARRVAL_P(p));
610: continue;
611: }
612: Z_TYPE_PP(element) &= ~IS_CONSTANT_INDEX;
613: if (zend_hash_get_current_key_ex(Z_ARRVAL_P(p), &str_index, &str_index_len, &num_index, 0, NULL) != HASH_KEY_IS_STRING) {
614: zend_hash_move_forward(Z_ARRVAL_P(p));
615: continue;
616: }
617: if (!zend_get_constant_ex(str_index, str_index_len - 3, &const_value, scope, str_index[str_index_len - 2] TSRMLS_CC)) {
618: char *actual;
619: const char *save = str_index;
620: if ((colon = (char*)zend_memrchr(str_index, ':', str_index_len - 3))) {
621: zend_error(E_ERROR, "Undefined class constant '%s'", str_index);
622: str_index_len -= ((colon - str_index) + 1);
623: str_index = colon;
624: } else {
625: if (str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) {
626: if ((actual = (char *)zend_memrchr(str_index, '\\', str_index_len - 3))) {
627: actual++;
628: str_index_len -= (actual - str_index);
629: str_index = actual;
630: }
631: }
632: if (str_index[0] == '\\') {
633: ++str_index;
634: --str_index_len;
635: }
636: if (save[0] == '\\') {
637: ++save;
638: }
639: if ((str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) == 0) {
640: zend_error(E_ERROR, "Undefined constant '%s'", save);
641: }
642: zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", str_index, str_index);
643: }
644: ZVAL_STRINGL(&const_value, str_index, str_index_len-3, 1);
645: }
646:
647: if (Z_REFCOUNT_PP(element) > 1) {
648: ALLOC_ZVAL(new_val);
649: *new_val = **element;
650: zval_copy_ctor(new_val);
651: Z_SET_REFCOUNT_P(new_val, 1);
652: Z_UNSET_ISREF_P(new_val);
653:
654: /* preserve this bit for inheritance */
655: Z_TYPE_PP(element) |= IS_CONSTANT_INDEX;
656: zval_ptr_dtor(element);
657: *element = new_val;
658: }
659:
660: switch (Z_TYPE(const_value)) {
661: case IS_STRING:
662: ret = zend_symtable_update_current_key(Z_ARRVAL_P(p), Z_STRVAL(const_value), Z_STRLEN(const_value) + 1, HASH_UPDATE_KEY_IF_BEFORE);
663: break;
664: case IS_BOOL:
665: case IS_LONG:
666: ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_LONG, NULL, 0, Z_LVAL(const_value), HASH_UPDATE_KEY_IF_BEFORE, NULL);
667: break;
668: case IS_DOUBLE:
669: ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_LONG, NULL, 0, zend_dval_to_lval(Z_DVAL(const_value)), HASH_UPDATE_KEY_IF_BEFORE, NULL);
670: break;
671: case IS_NULL:
672: ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_STRING, "", 1, 0, HASH_UPDATE_KEY_IF_BEFORE, NULL);
673: break;
674: default:
675: ret = SUCCESS;
676: break;
677: }
678: if (ret == SUCCESS) {
679: zend_hash_move_forward(Z_ARRVAL_P(p));
680: }
681: zval_dtor(&const_value);
682: }
683: zend_hash_apply_with_argument(Z_ARRVAL_P(p), (apply_func_arg_t) zval_update_constant_inline_change, (void *) scope TSRMLS_CC);
684: zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));
685: }
686: return 0;
687: }
688: /* }}} */
689:
690: ZEND_API int zval_update_constant_inline_change(zval **pp, void *scope TSRMLS_DC) /* {{{ */
691: {
692: return zval_update_constant_ex(pp, (void*)1, scope TSRMLS_CC);
693: }
694: /* }}} */
695:
696: ZEND_API int zval_update_constant_no_inline_change(zval **pp, void *scope TSRMLS_DC) /* {{{ */
697: {
698: return zval_update_constant_ex(pp, (void*)0, scope TSRMLS_CC);
699: }
700: /* }}} */
701:
702: ZEND_API int zval_update_constant(zval **pp, void *arg TSRMLS_DC) /* {{{ */
703: {
704: return zval_update_constant_ex(pp, arg, NULL TSRMLS_CC);
705: }
706: /* }}} */
707:
708: int call_user_function(HashTable *function_table, zval **object_pp, zval *function_name, zval *retval_ptr, zend_uint param_count, zval *params[] TSRMLS_DC) /* {{{ */
709: {
710: zval ***params_array;
711: zend_uint i;
712: int ex_retval;
713: zval *local_retval_ptr = NULL;
714:
715: if (param_count) {
716: params_array = (zval ***) emalloc(sizeof(zval **)*param_count);
717: for (i=0; i<param_count; i++) {
718: params_array[i] = ¶ms[i];
719: }
720: } else {
721: params_array = NULL;
722: }
723: ex_retval = call_user_function_ex(function_table, object_pp, function_name, &local_retval_ptr, param_count, params_array, 1, NULL TSRMLS_CC);
724: if (local_retval_ptr) {
725: COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);
726: } else {
727: INIT_ZVAL(*retval_ptr);
728: }
729: if (params_array) {
730: efree(params_array);
731: }
732: return ex_retval;
733: }
734: /* }}} */
735:
736: int call_user_function_ex(HashTable *function_table, zval **object_pp, zval *function_name, zval **retval_ptr_ptr, zend_uint param_count, zval **params[], int no_separation, HashTable *symbol_table TSRMLS_DC) /* {{{ */
737: {
738: zend_fcall_info fci;
739:
740: fci.size = sizeof(fci);
741: fci.function_table = function_table;
742: fci.object_ptr = object_pp ? *object_pp : NULL;
743: fci.function_name = function_name;
744: fci.retval_ptr_ptr = retval_ptr_ptr;
745: fci.param_count = param_count;
746: fci.params = params;
747: fci.no_separation = (zend_bool) no_separation;
748: fci.symbol_table = symbol_table;
749:
750: return zend_call_function(&fci, NULL TSRMLS_CC);
751: }
752: /* }}} */
753:
754: int zend_call_function(zend_fcall_info *fci, zend_fcall_info_cache *fci_cache TSRMLS_DC) /* {{{ */
755: {
756: zend_uint i;
757: zval **original_return_value;
758: HashTable *calling_symbol_table;
759: zend_op_array *original_op_array;
760: zend_op **original_opline_ptr;
761: zend_class_entry *current_scope;
762: zend_class_entry *current_called_scope;
763: zend_class_entry *calling_scope = NULL;
764: zend_class_entry *called_scope = NULL;
765: zval *current_this;
766: zend_execute_data execute_data;
767: zend_fcall_info_cache fci_cache_local;
768:
769: *fci->retval_ptr_ptr = NULL;
770:
771: if (!EG(active)) {
772: return FAILURE; /* executor is already inactive */
773: }
774:
775: if (EG(exception)) {
776: return FAILURE; /* we would result in an instable executor otherwise */
777: }
778:
779: switch (fci->size) {
780: case sizeof(zend_fcall_info):
781: break; /* nothing to do currently */
782: default:
783: zend_error(E_ERROR, "Corrupted fcall_info provided to zend_call_function()");
784: break;
785: }
786:
787: /* Initialize execute_data */
788: if (EG(current_execute_data)) {
789: execute_data = *EG(current_execute_data);
790: EX(op_array) = NULL;
791: EX(opline) = NULL;
792: EX(object) = NULL;
793: } else {
794: /* This only happens when we're called outside any execute()'s
795: * It shouldn't be strictly necessary to NULL execute_data out,
796: * but it may make bugs easier to spot
797: */
798: memset(&execute_data, 0, sizeof(zend_execute_data));
799: }
800:
801: if (!fci_cache || !fci_cache->initialized) {
802: char *callable_name;
803: char *error = NULL;
804:
805: if (!fci_cache) {
806: fci_cache = &fci_cache_local;
807: }
808:
809: if (!zend_is_callable_ex(fci->function_name, fci->object_ptr, IS_CALLABLE_CHECK_SILENT, &callable_name, NULL, fci_cache, &error TSRMLS_CC)) {
810: if (error) {
811: zend_error(E_WARNING, "Invalid callback %s, %s", callable_name, error);
812: efree(error);
813: }
814: if (callable_name) {
815: efree(callable_name);
816: }
817: return FAILURE;
818: } else if (error) {
819: /* Capitalize the first latter of the error message */
820: if (error[0] >= 'a' && error[0] <= 'z') {
821: error[0] += ('A' - 'a');
822: }
823: zend_error(E_STRICT, "%s", error);
824: efree(error);
825: }
826: efree(callable_name);
827: }
828:
829: EX(function_state).function = fci_cache->function_handler;
830: calling_scope = fci_cache->calling_scope;
831: called_scope = fci_cache->called_scope;
832: fci->object_ptr = fci_cache->object_ptr;
833: EX(object) = fci->object_ptr;
834: if (fci->object_ptr && Z_TYPE_P(fci->object_ptr) == IS_OBJECT &&
835: (!EG(objects_store).object_buckets || !EG(objects_store).object_buckets[Z_OBJ_HANDLE_P(fci->object_ptr)].valid)) {
836: return FAILURE;
837: }
838:
839: if (EX(function_state).function->common.fn_flags & (ZEND_ACC_ABSTRACT|ZEND_ACC_DEPRECATED)) {
840: if (EX(function_state).function->common.fn_flags & ZEND_ACC_ABSTRACT) {
841: zend_error_noreturn(E_ERROR, "Cannot call abstract method %s::%s()", EX(function_state).function->common.scope->name, EX(function_state).function->common.function_name);
842: }
843: if (EX(function_state).function->common.fn_flags & ZEND_ACC_DEPRECATED) {
844: zend_error(E_DEPRECATED, "Function %s%s%s() is deprecated",
845: EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",
846: EX(function_state).function->common.scope ? "::" : "",
847: EX(function_state).function->common.function_name);
848: }
849: }
850:
851: ZEND_VM_STACK_GROW_IF_NEEDED(fci->param_count + 1);
852:
853: for (i=0; i<fci->param_count; i++) {
854: zval *param;
855:
856: if (ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i + 1)) {
857: if (!PZVAL_IS_REF(*fci->params[i]) && Z_REFCOUNT_PP(fci->params[i]) > 1) {
858: zval *new_zval;
859:
860: if (fci->no_separation &&
861: !ARG_MAY_BE_SENT_BY_REF(EX(function_state).function, i + 1)) {
862: if (i || UNEXPECTED(ZEND_VM_STACK_ELEMETS(EG(argument_stack)) == (EG(argument_stack)->top))) {
863: /* hack to clean up the stack */
864: zend_vm_stack_push_nocheck((void *) (zend_uintptr_t)i TSRMLS_CC);
865: zend_vm_stack_clear_multiple(TSRMLS_C);
866: }
867:
868: zend_error(E_WARNING, "Parameter %d to %s%s%s() expected to be a reference, value given",
869: i+1,
870: EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",
871: EX(function_state).function->common.scope ? "::" : "",
872: EX(function_state).function->common.function_name);
873: return FAILURE;
874: }
875:
876: ALLOC_ZVAL(new_zval);
877: *new_zval = **fci->params[i];
878: zval_copy_ctor(new_zval);
879: Z_SET_REFCOUNT_P(new_zval, 1);
880: Z_DELREF_PP(fci->params[i]);
881: *fci->params[i] = new_zval;
882: }
883: Z_ADDREF_PP(fci->params[i]);
884: Z_SET_ISREF_PP(fci->params[i]);
885: param = *fci->params[i];
886: } else if (PZVAL_IS_REF(*fci->params[i]) &&
887: /* don't separate references for __call */
888: (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) == 0 ) {
889: ALLOC_ZVAL(param);
890: *param = **(fci->params[i]);
891: INIT_PZVAL(param);
892: zval_copy_ctor(param);
893: } else if (*fci->params[i] != &EG(uninitialized_zval)) {
894: Z_ADDREF_PP(fci->params[i]);
895: param = *fci->params[i];
896: } else {
897: ALLOC_ZVAL(param);
898: *param = **(fci->params[i]);
899: INIT_PZVAL(param);
900: }
901: zend_vm_stack_push_nocheck(param TSRMLS_CC);
902: }
903:
904: EX(function_state).arguments = zend_vm_stack_top(TSRMLS_C);
905: zend_vm_stack_push_nocheck((void*)(zend_uintptr_t)fci->param_count TSRMLS_CC);
906:
907: current_scope = EG(scope);
908: EG(scope) = calling_scope;
909:
910: current_this = EG(This);
911:
912: current_called_scope = EG(called_scope);
913: if (called_scope) {
914: EG(called_scope) = called_scope;
915: } else if (EX(function_state).function->type != ZEND_INTERNAL_FUNCTION) {
916: EG(called_scope) = NULL;
917: }
918:
919: if (fci->object_ptr) {
920: if ((EX(function_state).function->common.fn_flags & ZEND_ACC_STATIC)) {
921: EG(This) = NULL;
922: } else {
923: EG(This) = fci->object_ptr;
924:
925: if (!PZVAL_IS_REF(EG(This))) {
926: Z_ADDREF_P(EG(This)); /* For $this pointer */
927: } else {
928: zval *this_ptr;
929:
930: ALLOC_ZVAL(this_ptr);
931: *this_ptr = *EG(This);
932: INIT_PZVAL(this_ptr);
933: zval_copy_ctor(this_ptr);
934: EG(This) = this_ptr;
935: }
936: }
937: } else {
938: EG(This) = NULL;
939: }
940:
941: EX(prev_execute_data) = EG(current_execute_data);
942: EG(current_execute_data) = &execute_data;
943:
944: if (EX(function_state).function->type == ZEND_USER_FUNCTION) {
945: calling_symbol_table = EG(active_symbol_table);
946: EG(scope) = EX(function_state).function->common.scope;
947: if (fci->symbol_table) {
948: EG(active_symbol_table) = fci->symbol_table;
949: } else {
950: EG(active_symbol_table) = NULL;
951: }
952:
953: original_return_value = EG(return_value_ptr_ptr);
954: original_op_array = EG(active_op_array);
955: EG(return_value_ptr_ptr) = fci->retval_ptr_ptr;
956: EG(active_op_array) = (zend_op_array *) EX(function_state).function;
957: original_opline_ptr = EG(opline_ptr);
958: zend_execute(EG(active_op_array) TSRMLS_CC);
959: if (!fci->symbol_table && EG(active_symbol_table)) {
960: if (EG(symtable_cache_ptr)>=EG(symtable_cache_limit)) {
961: zend_hash_destroy(EG(active_symbol_table));
962: FREE_HASHTABLE(EG(active_symbol_table));
963: } else {
964: /* clean before putting into the cache, since clean
965: could call dtors, which could use cached hash */
966: zend_hash_clean(EG(active_symbol_table));
967: *(++EG(symtable_cache_ptr)) = EG(active_symbol_table);
968: }
969: }
970: EG(active_symbol_table) = calling_symbol_table;
971: EG(active_op_array) = original_op_array;
972: EG(return_value_ptr_ptr)=original_return_value;
973: EG(opline_ptr) = original_opline_ptr;
974: } else if (EX(function_state).function->type == ZEND_INTERNAL_FUNCTION) {
975: int call_via_handler = (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) != 0;
976: ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);
977: if (EX(function_state).function->common.scope) {
978: EG(scope) = EX(function_state).function->common.scope;
979: }
980: ((zend_internal_function *) EX(function_state).function)->handler(fci->param_count, *fci->retval_ptr_ptr, fci->retval_ptr_ptr, fci->object_ptr, 1 TSRMLS_CC);
981: /* We shouldn't fix bad extensions here,
982: because it can break proper ones (Bug #34045)
983: if (!EX(function_state).function->common.return_reference)
984: {
985: INIT_PZVAL(*fci->retval_ptr_ptr);
986: }*/
987: if (EG(exception) && fci->retval_ptr_ptr) {
988: zval_ptr_dtor(fci->retval_ptr_ptr);
989: *fci->retval_ptr_ptr = NULL;
990: }
991:
992: if (call_via_handler) {
993: /* We must re-initialize function again */
994: fci_cache->initialized = 0;
995: }
996: } else { /* ZEND_OVERLOADED_FUNCTION */
997: ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);
998:
999: /* Not sure what should be done here if it's a static method */
1000: if (fci->object_ptr) {
1001: Z_OBJ_HT_P(fci->object_ptr)->call_method(EX(function_state).function->common.function_name, fci->param_count, *fci->retval_ptr_ptr, fci->retval_ptr_ptr, fci->object_ptr, 1 TSRMLS_CC);
1002: } else {
1003: zend_error_noreturn(E_ERROR, "Cannot call overloaded function for non-object");
1004: }
1005:
1006: if (EX(function_state).function->type == ZEND_OVERLOADED_FUNCTION_TEMPORARY) {
1007: efree((char*)EX(function_state).function->common.function_name);
1008: }
1009: efree(EX(function_state).function);
1010:
1011: if (EG(exception) && fci->retval_ptr_ptr) {
1012: zval_ptr_dtor(fci->retval_ptr_ptr);
1013: *fci->retval_ptr_ptr = NULL;
1014: }
1015: }
1016: zend_vm_stack_clear_multiple(TSRMLS_C);
1017:
1018: if (EG(This)) {
1019: zval_ptr_dtor(&EG(This));
1020: }
1021: EG(called_scope) = current_called_scope;
1022: EG(scope) = current_scope;
1023: EG(This) = current_this;
1024: EG(current_execute_data) = EX(prev_execute_data);
1025:
1026: if (EG(exception)) {
1027: zend_throw_exception_internal(NULL TSRMLS_CC);
1028: }
1029: return SUCCESS;
1030: }
1031: /* }}} */
1032:
1033: ZEND_API int zend_lookup_class_ex(const char *name, int name_length, const zend_literal *key, int use_autoload, zend_class_entry ***ce TSRMLS_DC) /* {{{ */
1034: {
1035: zval **args[1];
1036: zval autoload_function;
1037: zval *class_name_ptr;
1038: zval *retval_ptr = NULL;
1039: int retval, lc_length;
1040: char *lc_name;
1041: char *lc_free;
1042: zend_fcall_info fcall_info;
1043: zend_fcall_info_cache fcall_cache;
1044: char dummy = 1;
1045: ulong hash;
1046: ALLOCA_FLAG(use_heap)
1047:
1048: if (key) {
1049: lc_name = Z_STRVAL(key->constant);
1050: lc_length = Z_STRLEN(key->constant) + 1;
1051: hash = key->hash_value;
1052: } else {
1053: if (name == NULL || !name_length) {
1054: return FAILURE;
1055: }
1056:
1057: lc_free = lc_name = do_alloca(name_length + 1, use_heap);
1058: zend_str_tolower_copy(lc_name, name, name_length);
1059: lc_length = name_length + 1;
1060:
1061: if (lc_name[0] == '\\') {
1062: lc_name += 1;
1063: lc_length -= 1;
1064: }
1065:
1066: hash = zend_inline_hash_func(lc_name, lc_length);
1067: }
1068:
1069: if (zend_hash_quick_find(EG(class_table), lc_name, lc_length, hash, (void **) ce) == SUCCESS) {
1070: if (!key) {
1071: free_alloca(lc_free, use_heap);
1072: }
1073: return SUCCESS;
1074: }
1075:
1076: /* The compiler is not-reentrant. Make sure we __autoload() only during run-time
1077: * (doesn't impact fuctionality of __autoload()
1078: */
1079: if (!use_autoload || zend_is_compiling(TSRMLS_C)) {
1080: if (!key) {
1081: free_alloca(lc_free, use_heap);
1082: }
1083: return FAILURE;
1084: }
1085:
1086: if (EG(in_autoload) == NULL) {
1087: ALLOC_HASHTABLE(EG(in_autoload));
1088: zend_hash_init(EG(in_autoload), 0, NULL, NULL, 0);
1089: }
1090:
1091: if (zend_hash_quick_add(EG(in_autoload), lc_name, lc_length, hash, (void**)&dummy, sizeof(char), NULL) == FAILURE) {
1092: if (!key) {
1093: free_alloca(lc_free, use_heap);
1094: }
1095: return FAILURE;
1096: }
1097:
1098: ZVAL_STRINGL(&autoload_function, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME) - 1, 0);
1099:
1100: ALLOC_ZVAL(class_name_ptr);
1101: INIT_PZVAL(class_name_ptr);
1102: if (name[0] == '\\') {
1103: ZVAL_STRINGL(class_name_ptr, name+1, name_length-1, 1);
1104: } else {
1105: ZVAL_STRINGL(class_name_ptr, name, name_length, 1);
1106: }
1107:
1108: args[0] = &class_name_ptr;
1109:
1110: fcall_info.size = sizeof(fcall_info);
1111: fcall_info.function_table = EG(function_table);
1112: fcall_info.function_name = &autoload_function;
1113: fcall_info.symbol_table = NULL;
1114: fcall_info.retval_ptr_ptr = &retval_ptr;
1115: fcall_info.param_count = 1;
1116: fcall_info.params = args;
1117: fcall_info.object_ptr = NULL;
1118: fcall_info.no_separation = 1;
1119:
1120: fcall_cache.initialized = EG(autoload_func) ? 1 : 0;
1121: fcall_cache.function_handler = EG(autoload_func);
1122: fcall_cache.calling_scope = NULL;
1123: fcall_cache.called_scope = NULL;
1124: fcall_cache.object_ptr = NULL;
1125:
1126: zend_exception_save(TSRMLS_C);
1127: retval = zend_call_function(&fcall_info, &fcall_cache TSRMLS_CC);
1128: zend_exception_restore(TSRMLS_C);
1129:
1130: EG(autoload_func) = fcall_cache.function_handler;
1131:
1132: zval_ptr_dtor(&class_name_ptr);
1133:
1134: zend_hash_quick_del(EG(in_autoload), lc_name, lc_length, hash);
1135:
1136: if (retval_ptr) {
1137: zval_ptr_dtor(&retval_ptr);
1138: }
1139:
1140: if (retval == SUCCESS) {
1141: retval = zend_hash_quick_find(EG(class_table), lc_name, lc_length, hash, (void **) ce);
1142: }
1143: if (!key) {
1144: free_alloca(lc_free, use_heap);
1145: }
1146: return retval;
1147: }
1148: /* }}} */
1149:
1150: ZEND_API int zend_lookup_class(const char *name, int name_length, zend_class_entry ***ce TSRMLS_DC) /* {{{ */
1151: {
1152: return zend_lookup_class_ex(name, name_length, NULL, 1, ce TSRMLS_CC);
1153: }
1154: /* }}} */
1155:
1156: ZEND_API int zend_eval_stringl(char *str, int str_len, zval *retval_ptr, char *string_name TSRMLS_DC) /* {{{ */
1157: {
1158: zval pv;
1159: zend_op_array *new_op_array;
1160: zend_op_array *original_active_op_array = EG(active_op_array);
1161: zend_uint original_compiler_options;
1162: int retval;
1163:
1164: if (retval_ptr) {
1165: Z_STRLEN(pv) = str_len + sizeof("return ;") - 1;
1166: Z_STRVAL(pv) = emalloc(Z_STRLEN(pv) + 1);
1167: memcpy(Z_STRVAL(pv), "return ", sizeof("return ") - 1);
1168: memcpy(Z_STRVAL(pv) + sizeof("return ") - 1, str, str_len);
1169: Z_STRVAL(pv)[Z_STRLEN(pv) - 1] = ';';
1170: Z_STRVAL(pv)[Z_STRLEN(pv)] = '\0';
1171: } else {
1172: Z_STRLEN(pv) = str_len;
1173: Z_STRVAL(pv) = str;
1174: }
1175: Z_TYPE(pv) = IS_STRING;
1176:
1177: /*printf("Evaluating '%s'\n", pv.value.str.val);*/
1178:
1179: original_compiler_options = CG(compiler_options);
1180: CG(compiler_options) = ZEND_COMPILE_DEFAULT_FOR_EVAL;
1181: new_op_array = zend_compile_string(&pv, string_name TSRMLS_CC);
1182: CG(compiler_options) = original_compiler_options;
1183:
1184: if (new_op_array) {
1185: zval *local_retval_ptr=NULL;
1186: zval **original_return_value_ptr_ptr = EG(return_value_ptr_ptr);
1187: zend_op **original_opline_ptr = EG(opline_ptr);
1188: int orig_interactive = CG(interactive);
1189:
1190: EG(return_value_ptr_ptr) = &local_retval_ptr;
1191: EG(active_op_array) = new_op_array;
1192: EG(no_extensions)=1;
1193: if (!EG(active_symbol_table)) {
1194: zend_rebuild_symbol_table(TSRMLS_C);
1195: }
1196: CG(interactive) = 0;
1197:
1198: zend_try {
1199: zend_execute(new_op_array TSRMLS_CC);
1200: } zend_catch {
1201: destroy_op_array(new_op_array TSRMLS_CC);
1202: efree(new_op_array);
1203: zend_bailout();
1204: } zend_end_try();
1205:
1206: CG(interactive) = orig_interactive;
1207: if (local_retval_ptr) {
1208: if (retval_ptr) {
1209: COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);
1210: } else {
1211: zval_ptr_dtor(&local_retval_ptr);
1212: }
1213: } else {
1214: if (retval_ptr) {
1215: INIT_ZVAL(*retval_ptr);
1216: }
1217: }
1218:
1219: EG(no_extensions)=0;
1220: EG(opline_ptr) = original_opline_ptr;
1221: EG(active_op_array) = original_active_op_array;
1222: destroy_op_array(new_op_array TSRMLS_CC);
1223: efree(new_op_array);
1224: EG(return_value_ptr_ptr) = original_return_value_ptr_ptr;
1225: retval = SUCCESS;
1226: } else {
1227: retval = FAILURE;
1228: }
1229: if (retval_ptr) {
1230: zval_dtor(&pv);
1231: }
1232: return retval;
1233: }
1234: /* }}} */
1235:
1236: ZEND_API int zend_eval_string(char *str, zval *retval_ptr, char *string_name TSRMLS_DC) /* {{{ */
1237: {
1238: return zend_eval_stringl(str, strlen(str), retval_ptr, string_name TSRMLS_CC);
1239: }
1240: /* }}} */
1241:
1242: ZEND_API int zend_eval_stringl_ex(char *str, int str_len, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC) /* {{{ */
1243: {
1244: int result;
1245:
1246: result = zend_eval_stringl(str, str_len, retval_ptr, string_name TSRMLS_CC);
1247: if (handle_exceptions && EG(exception)) {
1248: zend_exception_error(EG(exception), E_ERROR TSRMLS_CC);
1249: result = FAILURE;
1250: }
1251: return result;
1252: }
1253: /* }}} */
1254:
1255: ZEND_API int zend_eval_string_ex(char *str, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC) /* {{{ */
1256: {
1257: return zend_eval_stringl_ex(str, strlen(str), retval_ptr, string_name, handle_exceptions TSRMLS_CC);
1258: }
1259: /* }}} */
1260:
1261: void execute_new_code(TSRMLS_D) /* {{{ */
1262: {
1263: zend_op *opline, *end;
1264: zend_op *ret_opline;
1265: int orig_interactive;
1266:
1267: if (!(CG(active_op_array)->fn_flags & ZEND_ACC_INTERACTIVE)
1268: || CG(context).backpatch_count>0
1269: || CG(active_op_array)->function_name
1270: || CG(active_op_array)->type!=ZEND_USER_FUNCTION) {
1271: return;
1272: }
1273:
1274: ret_opline = get_next_op(CG(active_op_array) TSRMLS_CC);
1275: ret_opline->opcode = ZEND_RETURN;
1276: ret_opline->op1_type = IS_CONST;
1277: ret_opline->op1.constant = zend_add_literal(CG(active_op_array), &EG(uninitialized_zval) TSRMLS_CC);
1278: SET_UNUSED(ret_opline->op2);
1279:
1280: if (!EG(start_op)) {
1281: EG(start_op) = CG(active_op_array)->opcodes;
1282: }
1283:
1284: opline=EG(start_op);
1285: end=CG(active_op_array)->opcodes+CG(active_op_array)->last;
1286:
1287: while (opline<end) {
1288: if (opline->op1_type == IS_CONST) {
1289: opline->op1.zv = &CG(active_op_array)->literals[opline->op1.constant].constant;
1290: }
1291: if (opline->op2_type == IS_CONST) {
1292: opline->op2.zv = &CG(active_op_array)->literals[opline->op2.constant].constant;
1293: }
1294: switch (opline->opcode) {
1295: case ZEND_GOTO:
1296: if (Z_TYPE_P(opline->op2.zv) != IS_LONG) {
1297: zend_resolve_goto_label(CG(active_op_array), opline, 1 TSRMLS_CC);
1298: }
1299: /* break omitted intentionally */
1300: case ZEND_JMP:
1301: opline->op1.jmp_addr = &CG(active_op_array)->opcodes[opline->op1.opline_num];
1302: break;
1303: case ZEND_JMPZ:
1304: case ZEND_JMPNZ:
1305: case ZEND_JMPZ_EX:
1306: case ZEND_JMPNZ_EX:
1307: case ZEND_JMP_SET:
1308: case ZEND_JMP_SET_VAR:
1309: opline->op2.jmp_addr = &CG(active_op_array)->opcodes[opline->op2.opline_num];
1310: break;
1311: }
1312: ZEND_VM_SET_OPCODE_HANDLER(opline);
1313: opline++;
1314: }
1315:
1316: zend_release_labels(TSRMLS_C);
1317:
1318: EG(return_value_ptr_ptr) = NULL;
1319: EG(active_op_array) = CG(active_op_array);
1320: orig_interactive = CG(interactive);
1321: CG(interactive) = 0;
1322: zend_execute(CG(active_op_array) TSRMLS_CC);
1323: CG(interactive) = orig_interactive;
1324:
1325: if (EG(exception)) {
1326: zend_exception_error(EG(exception), E_ERROR TSRMLS_CC);
1327: }
1328:
1329: CG(active_op_array)->last -= 1; /* get rid of that ZEND_RETURN */
1330: EG(start_op) = CG(active_op_array)->opcodes+CG(active_op_array)->last;
1331: }
1332: /* }}} */
1333:
1334: ZEND_API void zend_timeout(int dummy) /* {{{ */
1335: {
1336: TSRMLS_FETCH();
1337:
1338: if (zend_on_timeout) {
1339: #ifdef ZEND_SIGNALS
1340: /*
1341: We got here because we got a timeout signal, so we are in a signal handler
1342: at this point. However, we want to be able to timeout any user-supplied
1343: shutdown functions, so pretend we are not in a signal handler while we are
1344: calling these
1345: */
1346: SIGG(running) = 0;
1347: #endif
1348: zend_on_timeout(EG(timeout_seconds) TSRMLS_CC);
1349: }
1350:
1351: zend_error(E_ERROR, "Maximum execution time of %d second%s exceeded", EG(timeout_seconds), EG(timeout_seconds) == 1 ? "" : "s");
1352: }
1353: /* }}} */
1354:
1355: #ifdef ZEND_WIN32
1356: static LRESULT CALLBACK zend_timeout_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) /* {{{ */
1357: {
1358: switch (message) {
1359: case WM_DESTROY:
1360: PostQuitMessage(0);
1361: break;
1362: case WM_REGISTER_ZEND_TIMEOUT:
1363: /* wParam is the thread id pointer, lParam is the timeout amount in seconds */
1364: if (lParam == 0) {
1365: KillTimer(timeout_window, wParam);
1366: } else {
1367: #ifdef ZTS
1368: void ***tsrm_ls;
1369: #endif
1370: SetTimer(timeout_window, wParam, lParam*1000, NULL);
1371: #ifdef ZTS
1372: tsrm_ls = ts_resource_ex(0, &wParam);
1373: if (!tsrm_ls) {
1374: /* shouldn't normally happen */
1375: break;
1376: }
1377: #endif
1378: EG(timed_out) = 0;
1379: }
1380: break;
1381: case WM_UNREGISTER_ZEND_TIMEOUT:
1382: /* wParam is the thread id pointer */
1383: KillTimer(timeout_window, wParam);
1384: break;
1385: case WM_TIMER: {
1386: #ifdef ZTS
1387: void ***tsrm_ls;
1388:
1389: tsrm_ls = ts_resource_ex(0, &wParam);
1390: if (!tsrm_ls) {
1391: /* Thread died before receiving its timeout? */
1392: break;
1393: }
1394: #endif
1395: KillTimer(timeout_window, wParam);
1396: EG(timed_out) = 1;
1397: }
1398: break;
1399: default:
1400: return DefWindowProc(hWnd, message, wParam, lParam);
1401: }
1402: return 0;
1403: }
1404: /* }}} */
1405:
1406: static unsigned __stdcall timeout_thread_proc(void *pArgs) /* {{{ */
1407: {
1408: MSG message;
1409:
1410: wc.style=0;
1411: wc.lpfnWndProc = zend_timeout_WndProc;
1412: wc.cbClsExtra=0;
1413: wc.cbWndExtra=0;
1414: wc.hInstance=NULL;
1415: wc.hIcon=NULL;
1416: wc.hCursor=NULL;
1417: wc.hbrBackground=(HBRUSH)(COLOR_BACKGROUND + 5);
1418: wc.lpszMenuName=NULL;
1419: wc.lpszClassName = "Zend Timeout Window";
1420: if (!RegisterClass(&wc)) {
1421: return -1;
1422: }
1423: timeout_window = CreateWindow(wc.lpszClassName, wc.lpszClassName, 0, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, NULL, NULL);
1424: SetEvent(timeout_thread_event);
1425: while (GetMessage(&message, NULL, 0, 0)) {
1426: SendMessage(timeout_window, message.message, message.wParam, message.lParam);
1427: if (message.message == WM_QUIT) {
1428: break;
1429: }
1430: }
1431: DestroyWindow(timeout_window);
1432: UnregisterClass(wc.lpszClassName, NULL);
1433: SetEvent(timeout_thread_handle);
1434: return 0;
1435: }
1436: /* }}} */
1437:
1438: void zend_init_timeout_thread(void) /* {{{ */
1439: {
1440: timeout_thread_event = CreateEvent(NULL, FALSE, FALSE, NULL);
1441: timeout_thread_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
1442: _beginthreadex(NULL, 0, timeout_thread_proc, NULL, 0, &timeout_thread_id);
1443: WaitForSingleObject(timeout_thread_event, INFINITE);
1444: }
1445: /* }}} */
1446:
1447: void zend_shutdown_timeout_thread(void) /* {{{ */
1448: {
1449: if (!timeout_thread_initialized) {
1450: return;
1451: }
1452: PostThreadMessage(timeout_thread_id, WM_QUIT, 0, 0);
1453:
1454: /* Wait for thread termination */
1455: WaitForSingleObject(timeout_thread_handle, 5000);
1456: CloseHandle(timeout_thread_handle);
1457: timeout_thread_initialized = 0;
1458: }
1459: /* }}} */
1460:
1461: #endif
1462:
1463: /* This one doesn't exists on QNX */
1464: #ifndef SIGPROF
1465: #define SIGPROF 27
1466: #endif
1467:
1468: void zend_set_timeout(long seconds, int reset_signals) /* {{{ */
1469: {
1470: TSRMLS_FETCH();
1471:
1472: EG(timeout_seconds) = seconds;
1473:
1474: #ifdef ZEND_WIN32
1475: if(!seconds) {
1476: return;
1477: }
1478: if (timeout_thread_initialized == 0 && InterlockedIncrement(&timeout_thread_initialized) == 1) {
1479: /* We start up this process-wide thread here and not in zend_startup(), because if Zend
1480: * is initialized inside a DllMain(), you're not supposed to start threads from it.
1481: */
1482: zend_init_timeout_thread();
1483: }
1484: PostThreadMessage(timeout_thread_id, WM_REGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) seconds);
1485: #else
1486: # ifdef HAVE_SETITIMER
1487: {
1488: struct itimerval t_r; /* timeout requested */
1489: int signo;
1490:
1491: if(seconds) {
1492: t_r.it_value.tv_sec = seconds;
1493: t_r.it_value.tv_usec = t_r.it_interval.tv_sec = t_r.it_interval.tv_usec = 0;
1494:
1495: # ifdef __CYGWIN__
1496: setitimer(ITIMER_REAL, &t_r, NULL);
1497: }
1498: signo = SIGALRM;
1499: # else
1500: setitimer(ITIMER_PROF, &t_r, NULL);
1501: }
1502: signo = SIGPROF;
1503: # endif
1504:
1505: if (reset_signals) {
1506: # ifdef ZEND_SIGNALS
1507: zend_signal(signo, zend_timeout TSRMLS_CC);
1508: # else
1509: sigset_t sigset;
1510:
1511: signal(signo, zend_timeout);
1512: sigemptyset(&sigset);
1513: sigaddset(&sigset, signo);
1514: sigprocmask(SIG_UNBLOCK, &sigset, NULL);
1515: # endif
1516: }
1517: }
1518: # endif /* HAVE_SETITIMER */
1519: #endif
1520: }
1521: /* }}} */
1522:
1523: void zend_unset_timeout(TSRMLS_D) /* {{{ */
1524: {
1525: #ifdef ZEND_WIN32
1526: if(timeout_thread_initialized) {
1527: PostThreadMessage(timeout_thread_id, WM_UNREGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) 0);
1528: }
1529: #else
1530: # ifdef HAVE_SETITIMER
1531: if (EG(timeout_seconds)) {
1532: struct itimerval no_timeout;
1533:
1534: no_timeout.it_value.tv_sec = no_timeout.it_value.tv_usec = no_timeout.it_interval.tv_sec = no_timeout.it_interval.tv_usec = 0;
1535:
1536: #ifdef __CYGWIN__
1537: setitimer(ITIMER_REAL, &no_timeout, NULL);
1538: #else
1539: setitimer(ITIMER_PROF, &no_timeout, NULL);
1540: #endif
1541: }
1542: # endif
1543: #endif
1544: }
1545: /* }}} */
1546:
1547: zend_class_entry *zend_fetch_class(const char *class_name, uint class_name_len, int fetch_type TSRMLS_DC) /* {{{ */
1548: {
1549: zend_class_entry **pce;
1550: int use_autoload = (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) == 0;
1551: int silent = (fetch_type & ZEND_FETCH_CLASS_SILENT) != 0;
1552:
1553: fetch_type &= ZEND_FETCH_CLASS_MASK;
1554:
1555: check_fetch_type:
1556: switch (fetch_type) {
1557: case ZEND_FETCH_CLASS_SELF:
1558: if (!EG(scope)) {
1559: zend_error(E_ERROR, "Cannot access self:: when no class scope is active");
1560: }
1561: return EG(scope);
1562: case ZEND_FETCH_CLASS_PARENT:
1563: if (!EG(scope)) {
1564: zend_error(E_ERROR, "Cannot access parent:: when no class scope is active");
1565: }
1566: if (!EG(scope)->parent) {
1567: zend_error(E_ERROR, "Cannot access parent:: when current class scope has no parent");
1568: }
1569: return EG(scope)->parent;
1570: case ZEND_FETCH_CLASS_STATIC:
1571: if (!EG(called_scope)) {
1572: zend_error(E_ERROR, "Cannot access static:: when no class scope is active");
1573: }
1574: return EG(called_scope);
1575: case ZEND_FETCH_CLASS_AUTO: {
1576: fetch_type = zend_get_class_fetch_type(class_name, class_name_len);
1577: if (fetch_type!=ZEND_FETCH_CLASS_DEFAULT) {
1578: goto check_fetch_type;
1579: }
1580: }
1581: break;
1582: }
1583:
1584: if (zend_lookup_class_ex(class_name, class_name_len, NULL, use_autoload, &pce TSRMLS_CC) == FAILURE) {
1585: if (use_autoload) {
1586: if (!silent && !EG(exception)) {
1587: if (fetch_type == ZEND_FETCH_CLASS_INTERFACE) {
1588: zend_error(E_ERROR, "Interface '%s' not found", class_name);
1589: } else if (fetch_type == ZEND_FETCH_CLASS_TRAIT) {
1590: zend_error(E_ERROR, "Trait '%s' not found", class_name);
1591: } else {
1592: zend_error(E_ERROR, "Class '%s' not found", class_name);
1593: }
1594: }
1595: }
1596: return NULL;
1597: }
1598: return *pce;
1599: }
1600: /* }}} */
1601:
1602: zend_class_entry *zend_fetch_class_by_name(const char *class_name, uint class_name_len, const zend_literal *key, int fetch_type TSRMLS_DC) /* {{{ */
1603: {
1604: zend_class_entry **pce;
1605: int use_autoload = (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) == 0;
1606:
1607: if (zend_lookup_class_ex(class_name, class_name_len, key, use_autoload, &pce TSRMLS_CC) == FAILURE) {
1608: if (use_autoload) {
1609: if ((fetch_type & ZEND_FETCH_CLASS_SILENT) == 0 && !EG(exception)) {
1610: if ((fetch_type & ZEND_FETCH_CLASS_MASK) == ZEND_FETCH_CLASS_INTERFACE) {
1611: zend_error(E_ERROR, "Interface '%s' not found", class_name);
1612: } else if ((fetch_type & ZEND_FETCH_CLASS_MASK) == ZEND_FETCH_CLASS_TRAIT) {
1613: zend_error(E_ERROR, "Trait '%s' not found", class_name);
1614: } else {
1615: zend_error(E_ERROR, "Class '%s' not found", class_name);
1616: }
1617: }
1618: }
1619: return NULL;
1620: }
1621: return *pce;
1622: }
1623: /* }}} */
1624:
1625: #define MAX_ABSTRACT_INFO_CNT 3
1626: #define MAX_ABSTRACT_INFO_FMT "%s%s%s%s"
1627: #define DISPLAY_ABSTRACT_FN(idx) \
1628: ai.afn[idx] ? ZEND_FN_SCOPE_NAME(ai.afn[idx]) : "", \
1629: ai.afn[idx] ? "::" : "", \
1630: ai.afn[idx] ? ai.afn[idx]->common.function_name : "", \
1631: ai.afn[idx] && ai.afn[idx + 1] ? ", " : (ai.afn[idx] && ai.cnt > MAX_ABSTRACT_INFO_CNT ? ", ..." : "")
1632:
1633: typedef struct _zend_abstract_info {
1634: zend_function *afn[MAX_ABSTRACT_INFO_CNT + 1];
1635: int cnt;
1636: int ctor;
1637: } zend_abstract_info;
1638:
1639: static int zend_verify_abstract_class_function(zend_function *fn, zend_abstract_info *ai TSRMLS_DC) /* {{{ */
1640: {
1641: if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
1642: if (ai->cnt < MAX_ABSTRACT_INFO_CNT) {
1643: ai->afn[ai->cnt] = fn;
1644: }
1645: if (fn->common.fn_flags & ZEND_ACC_CTOR) {
1646: if (!ai->ctor) {
1647: ai->cnt++;
1648: ai->ctor = 1;
1649: } else {
1650: ai->afn[ai->cnt] = NULL;
1651: }
1652: } else {
1653: ai->cnt++;
1654: }
1655: }
1656: return 0;
1657: }
1658: /* }}} */
1659:
1660: void zend_verify_abstract_class(zend_class_entry *ce TSRMLS_DC) /* {{{ */
1661: {
1662: zend_abstract_info ai;
1663:
1664: if ((ce->ce_flags & ZEND_ACC_IMPLICIT_ABSTRACT_CLASS) && !(ce->ce_flags & ZEND_ACC_EXPLICIT_ABSTRACT_CLASS)) {
1665: memset(&ai, 0, sizeof(ai));
1666:
1667: zend_hash_apply_with_argument(&ce->function_table, (apply_func_arg_t) zend_verify_abstract_class_function, &ai TSRMLS_CC);
1668:
1669: if (ai.cnt) {
1670: zend_error(E_ERROR, "Class %s contains %d abstract method%s and must therefore be declared abstract or implement the remaining methods (" MAX_ABSTRACT_INFO_FMT MAX_ABSTRACT_INFO_FMT MAX_ABSTRACT_INFO_FMT ")",
1671: ce->name, ai.cnt,
1672: ai.cnt > 1 ? "s" : "",
1673: DISPLAY_ABSTRACT_FN(0),
1674: DISPLAY_ABSTRACT_FN(1),
1675: DISPLAY_ABSTRACT_FN(2)
1676: );
1677: }
1678: }
1679: }
1680: /* }}} */
1681:
1682: ZEND_API void zend_reset_all_cv(HashTable *symbol_table TSRMLS_DC) /* {{{ */
1683: {
1684: zend_execute_data *ex;
1685: int i;
1686:
1687: for (ex = EG(current_execute_data); ex; ex = ex->prev_execute_data) {
1688: if (ex->op_array && ex->symbol_table == symbol_table) {
1689: for (i = 0; i < ex->op_array->last_var; i++) {
1690: ex->CVs[i] = NULL;
1691: }
1692: }
1693: }
1694: }
1695: /* }}} */
1696:
1697: ZEND_API void zend_delete_variable(zend_execute_data *ex, HashTable *ht, const char *name, int name_len, ulong hash_value TSRMLS_DC) /* {{{ */
1698: {
1699: if (zend_hash_quick_del(ht, name, name_len, hash_value) == SUCCESS) {
1700: name_len--;
1701: while (ex && ex->symbol_table == ht) {
1702: int i;
1703:
1704: if (ex->op_array) {
1705: for (i = 0; i < ex->op_array->last_var; i++) {
1706: if (ex->op_array->vars[i].hash_value == hash_value &&
1707: ex->op_array->vars[i].name_len == name_len &&
1708: !memcmp(ex->op_array->vars[i].name, name, name_len)) {
1709: ex->CVs[i] = NULL;
1710: break;
1711: }
1712: }
1713: }
1714: ex = ex->prev_execute_data;
1715: }
1716: }
1717: }
1718: /* }}} */
1719:
1720: ZEND_API int zend_delete_global_variable_ex(const char *name, int name_len, ulong hash_value TSRMLS_DC) /* {{{ */
1721: {
1722: zend_execute_data *ex;
1723:
1724: if (zend_hash_quick_exists(&EG(symbol_table), name, name_len + 1, hash_value)) {
1725: for (ex = EG(current_execute_data); ex; ex = ex->prev_execute_data) {
1726: if (ex->op_array && ex->symbol_table == &EG(symbol_table)) {
1727: int i;
1728: for (i = 0; i < ex->op_array->last_var; i++) {
1729: if (ex->op_array->vars[i].hash_value == hash_value &&
1730: ex->op_array->vars[i].name_len == name_len &&
1731: !memcmp(ex->op_array->vars[i].name, name, name_len)
1732: ) {
1733: ex->CVs[i] = NULL;
1734: break;
1735: }
1736: }
1737: }
1738: }
1739: return zend_hash_quick_del(&EG(symbol_table), name, name_len + 1, hash_value);
1740: }
1741: return FAILURE;
1742: }
1743: /* }}} */
1744:
1745: ZEND_API int zend_delete_global_variable(const char *name, int name_len TSRMLS_DC) /* {{{ */
1746: {
1747: return zend_delete_global_variable_ex(name, name_len, zend_inline_hash_func(name, name_len + 1) TSRMLS_CC);
1748: }
1749: /* }}} */
1750:
1751: ZEND_API void zend_rebuild_symbol_table(TSRMLS_D) /* {{{ */
1752: {
1753: zend_uint i;
1754: zend_execute_data *ex;
1755:
1756: if (!EG(active_symbol_table)) {
1757:
1758: /* Search for last called user function */
1759: ex = EG(current_execute_data);
1760: while (ex && !ex->op_array) {
1761: ex = ex->prev_execute_data;
1762: }
1763: if (ex && ex->symbol_table) {
1764: EG(active_symbol_table) = ex->symbol_table;
1765: return;
1766: }
1767:
1768: if (ex && ex->op_array) {
1769: if (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
1770: /*printf("Cache hit! Reusing %x\n", symtable_cache[symtable_cache_ptr]);*/
1771: EG(active_symbol_table) = *(EG(symtable_cache_ptr)--);
1772: } else {
1773: ALLOC_HASHTABLE(EG(active_symbol_table));
1774: zend_hash_init(EG(active_symbol_table), ex->op_array->last_var, NULL, ZVAL_PTR_DTOR, 0);
1775: /*printf("Cache miss! Initialized %x\n", EG(active_symbol_table));*/
1776: }
1777: ex->symbol_table = EG(active_symbol_table);
1778:
1779: if (ex->op_array->this_var != -1 &&
1780: !ex->CVs[ex->op_array->this_var] &&
1781: EG(This)) {
1782: ex->CVs[ex->op_array->this_var] = (zval**)ex->CVs + ex->op_array->last_var + ex->op_array->this_var;
1783: *ex->CVs[ex->op_array->this_var] = EG(This);
1784: }
1785: for (i = 0; i < ex->op_array->last_var; i++) {
1786: if (ex->CVs[i]) {
1787: zend_hash_quick_update(EG(active_symbol_table),
1788: ex->op_array->vars[i].name,
1789: ex->op_array->vars[i].name_len + 1,
1790: ex->op_array->vars[i].hash_value,
1791: (void**)ex->CVs[i],
1792: sizeof(zval*),
1793: (void**)&ex->CVs[i]);
1794: }
1795: }
1796: }
1797: }
1798: }
1799: /* }}} */
1800:
1801: /*
1802: * Local variables:
1803: * tab-width: 4
1804: * c-basic-offset: 4
1805: * indent-tabs-mode: t
1806: * End:
1807: */
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