1: /*
2: +----------------------------------------------------------------------+
3: | Zend Engine |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1998-2013 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 1.1.1.4 2013/10/14 08:02:48 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_ptr_dtor(&zeh);
258: }
259:
260: if (EG(user_exception_handler)) {
261: zeh = EG(user_exception_handler);
262: EG(user_exception_handler) = NULL;
263: zval_ptr_dtor(&zeh);
264: }
265:
266: zend_stack_destroy(&EG(user_error_handlers_error_reporting));
267: zend_stack_init(&EG(user_error_handlers_error_reporting));
268: zend_ptr_stack_clean(&EG(user_error_handlers), ZVAL_DESTRUCTOR, 1);
269: zend_ptr_stack_clean(&EG(user_exception_handlers), ZVAL_DESTRUCTOR, 1);
270: } zend_end_try();
271:
272: zend_try {
273: /* Cleanup static data for functions and arrays.
274: * We need a separate cleanup stage because of the following problem:
275: * Suppose we destroy class X, which destroys the class's function table,
276: * and in the function table we have function foo() that has static $bar.
277: * Now if an object of class X is assigned to $bar, its destructor will be
278: * called and will fail since X's function table is in mid-destruction.
279: * So we want first of all to clean up all data and then move to tables destruction.
280: * Note that only run-time accessed data need to be cleaned up, pre-defined data can
281: * not contain objects and thus are not probelmatic */
282: if (EG(full_tables_cleanup)) {
283: zend_hash_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data_full TSRMLS_CC);
284: zend_hash_apply(EG(class_table), (apply_func_t) zend_cleanup_class_data TSRMLS_CC);
285: } else {
286: zend_hash_reverse_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data TSRMLS_CC);
287: zend_hash_reverse_apply(EG(class_table), (apply_func_t) zend_cleanup_user_class_data TSRMLS_CC);
288: zend_cleanup_internal_classes(TSRMLS_C);
289: }
290: } zend_end_try();
291:
292: zend_try {
293: zend_vm_stack_destroy(TSRMLS_C);
294:
295: zend_objects_store_free_object_storage(&EG(objects_store) TSRMLS_CC);
296:
297: /* Destroy all op arrays */
298: if (EG(full_tables_cleanup)) {
299: zend_hash_reverse_apply(EG(function_table), (apply_func_t) clean_non_persistent_function_full TSRMLS_CC);
300: zend_hash_reverse_apply(EG(class_table), (apply_func_t) clean_non_persistent_class_full TSRMLS_CC);
301: } else {
302: zend_hash_reverse_apply(EG(function_table), (apply_func_t) clean_non_persistent_function TSRMLS_CC);
303: zend_hash_reverse_apply(EG(class_table), (apply_func_t) clean_non_persistent_class TSRMLS_CC);
304: }
305:
306: while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
307: zend_hash_destroy(*EG(symtable_cache_ptr));
308: FREE_HASHTABLE(*EG(symtable_cache_ptr));
309: EG(symtable_cache_ptr)--;
310: }
311: } zend_end_try();
312:
313: zend_try {
314: clean_non_persistent_constants(TSRMLS_C);
315: } zend_end_try();
316:
317: zend_try {
318: #if 0&&ZEND_DEBUG
319: signal(SIGSEGV, original_sigsegv_handler);
320: #endif
321:
322: zend_hash_destroy(&EG(included_files));
323:
324: zend_ptr_stack_destroy(&EG(arg_types_stack));
325: zend_stack_destroy(&EG(user_error_handlers_error_reporting));
326: zend_ptr_stack_destroy(&EG(user_error_handlers));
327: zend_ptr_stack_destroy(&EG(user_exception_handlers));
328: zend_objects_store_destroy(&EG(objects_store));
329: if (EG(in_autoload)) {
330: zend_hash_destroy(EG(in_autoload));
331: FREE_HASHTABLE(EG(in_autoload));
332: }
333: } zend_end_try();
334:
335: zend_shutdown_fpu(TSRMLS_C);
336:
337: EG(active) = 0;
338: }
339: /* }}} */
340:
341: /* return class name and "::" or "". */
342: ZEND_API const char *get_active_class_name(const char **space TSRMLS_DC) /* {{{ */
343: {
344: if (!zend_is_executing(TSRMLS_C)) {
345: if (space) {
346: *space = "";
347: }
348: return "";
349: }
350: switch (EG(current_execute_data)->function_state.function->type) {
351: case ZEND_USER_FUNCTION:
352: case ZEND_INTERNAL_FUNCTION:
353: {
354: zend_class_entry *ce = EG(current_execute_data)->function_state.function->common.scope;
355:
356: if (space) {
357: *space = ce ? "::" : "";
358: }
359: return ce ? ce->name : "";
360: }
361: default:
362: if (space) {
363: *space = "";
364: }
365: return "";
366: }
367: }
368: /* }}} */
369:
370: ZEND_API const char *get_active_function_name(TSRMLS_D) /* {{{ */
371: {
372: if (!zend_is_executing(TSRMLS_C)) {
373: return NULL;
374: }
375: switch (EG(current_execute_data)->function_state.function->type) {
376: case ZEND_USER_FUNCTION: {
377: const char *function_name = ((zend_op_array *) EG(current_execute_data)->function_state.function)->function_name;
378:
379: if (function_name) {
380: return function_name;
381: } else {
382: return "main";
383: }
384: }
385: break;
386: case ZEND_INTERNAL_FUNCTION:
387: return ((zend_internal_function *) EG(current_execute_data)->function_state.function)->function_name;
388: break;
389: default:
390: return NULL;
391: }
392: }
393: /* }}} */
394:
395: ZEND_API const char *zend_get_executed_filename(TSRMLS_D) /* {{{ */
396: {
397: if (EG(active_op_array)) {
398: return EG(active_op_array)->filename;
399: } else {
400: return "[no active file]";
401: }
402: }
403: /* }}} */
404:
405: ZEND_API uint zend_get_executed_lineno(TSRMLS_D) /* {{{ */
406: {
407: if(EG(exception) && EG(opline_ptr) && active_opline->opcode == ZEND_HANDLE_EXCEPTION &&
408: active_opline->lineno == 0 && EG(opline_before_exception)) {
409: return EG(opline_before_exception)->lineno;
410: }
411: if (EG(opline_ptr)) {
412: return active_opline->lineno;
413: } else {
414: return 0;
415: }
416: }
417: /* }}} */
418:
419: ZEND_API zend_bool zend_is_executing(TSRMLS_D) /* {{{ */
420: {
421: return EG(in_execution);
422: }
423: /* }}} */
424:
425: ZEND_API void _zval_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) /* {{{ */
426: {
427: #if DEBUG_ZEND>=2
428: printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);
429: #endif
430: Z_DELREF_PP(zval_ptr);
431: if (Z_REFCOUNT_PP(zval_ptr) == 0) {
432: TSRMLS_FETCH();
433:
434: if (*zval_ptr != &EG(uninitialized_zval)) {
435: GC_REMOVE_ZVAL_FROM_BUFFER(*zval_ptr);
436: zval_dtor(*zval_ptr);
437: efree_rel(*zval_ptr);
438: }
439: } else {
440: TSRMLS_FETCH();
441:
442: if (Z_REFCOUNT_PP(zval_ptr) == 1) {
443: Z_UNSET_ISREF_PP(zval_ptr);
444: }
445:
446: GC_ZVAL_CHECK_POSSIBLE_ROOT(*zval_ptr);
447: }
448: }
449: /* }}} */
450:
451: ZEND_API void _zval_internal_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) /* {{{ */
452: {
453: #if DEBUG_ZEND>=2
454: printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);
455: #endif
456: Z_DELREF_PP(zval_ptr);
457: if (Z_REFCOUNT_PP(zval_ptr) == 0) {
458: zval_internal_dtor(*zval_ptr);
459: free(*zval_ptr);
460: } else if (Z_REFCOUNT_PP(zval_ptr) == 1) {
461: Z_UNSET_ISREF_PP(zval_ptr);
462: }
463: }
464: /* }}} */
465:
466: ZEND_API int zend_is_true(zval *op) /* {{{ */
467: {
468: return i_zend_is_true(op);
469: }
470: /* }}} */
471:
472: #include "../TSRM/tsrm_strtok_r.h"
473:
474: #define IS_VISITED_CONSTANT IS_CONSTANT_INDEX
475: #define IS_CONSTANT_VISITED(p) (Z_TYPE_P(p) & IS_VISITED_CONSTANT)
476: #define Z_REAL_TYPE_P(p) (Z_TYPE_P(p) & ~IS_VISITED_CONSTANT)
477: #define MARK_CONSTANT_VISITED(p) Z_TYPE_P(p) |= IS_VISITED_CONSTANT
478:
479: static void zval_deep_copy(zval **p)
480: {
481: zval *value;
482:
483: ALLOC_ZVAL(value);
484: *value = **p;
485: Z_TYPE_P(value) &= ~IS_CONSTANT_INDEX;
486: zval_copy_ctor(value);
487: Z_TYPE_P(value) = Z_TYPE_PP(p);
488: INIT_PZVAL(value);
489: *p = value;
490: }
491:
492: ZEND_API int zval_update_constant_ex(zval **pp, void *arg, zend_class_entry *scope TSRMLS_DC) /* {{{ */
493: {
494: zval *p = *pp;
495: zend_bool inline_change = (zend_bool) (zend_uintptr_t) arg;
496: zval const_value;
497: char *colon;
498:
499: if (IS_CONSTANT_VISITED(p)) {
500: zend_error(E_ERROR, "Cannot declare self-referencing constant '%s'", Z_STRVAL_P(p));
501: } else if ((Z_TYPE_P(p) & IS_CONSTANT_TYPE_MASK) == IS_CONSTANT) {
502: int refcount;
503: zend_uchar is_ref;
504:
505: SEPARATE_ZVAL_IF_NOT_REF(pp);
506: p = *pp;
507:
508: MARK_CONSTANT_VISITED(p);
509:
510: refcount = Z_REFCOUNT_P(p);
511: is_ref = Z_ISREF_P(p);
512:
513: if (!zend_get_constant_ex(p->value.str.val, p->value.str.len, &const_value, scope, Z_REAL_TYPE_P(p) TSRMLS_CC)) {
514: char *actual = Z_STRVAL_P(p);
515:
516: if ((colon = (char*)zend_memrchr(Z_STRVAL_P(p), ':', Z_STRLEN_P(p)))) {
517: zend_error(E_ERROR, "Undefined class constant '%s'", Z_STRVAL_P(p));
518: Z_STRLEN_P(p) -= ((colon - Z_STRVAL_P(p)) + 1);
519: if (inline_change) {
520: colon = estrndup(colon, Z_STRLEN_P(p));
521: str_efree(Z_STRVAL_P(p));
522: Z_STRVAL_P(p) = colon;
523: } else {
524: Z_STRVAL_P(p) = colon + 1;
525: }
526: } else {
527: char *save = actual, *slash;
528: int actual_len = Z_STRLEN_P(p);
529: if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) && (slash = (char *)zend_memrchr(actual, '\\', actual_len))) {
530: actual = slash + 1;
531: actual_len -= (actual - Z_STRVAL_P(p));
532: if (inline_change) {
533: actual = estrndup(actual, actual_len);
534: Z_STRVAL_P(p) = actual;
535: Z_STRLEN_P(p) = actual_len;
536: }
537: }
538: if (actual[0] == '\\') {
539: if (inline_change) {
540: memmove(Z_STRVAL_P(p), Z_STRVAL_P(p)+1, Z_STRLEN_P(p));
541: --Z_STRLEN_P(p);
542: } else {
543: ++actual;
544: }
545: --actual_len;
546: }
547: if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) == 0) {
548: int fix_save = 0;
549: if (save[0] == '\\') {
550: save++;
551: fix_save = 1;
552: }
553: zend_error(E_ERROR, "Undefined constant '%s'", save);
554: if (fix_save) {
555: save--;
556: }
557: if (inline_change && !IS_INTERNED(save)) {
558: efree(save);
559: }
560: save = NULL;
561: }
562: if (inline_change && save && save != actual && !IS_INTERNED(save)) {
563: efree(save);
564: }
565: zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", actual, actual);
566: p->type = IS_STRING;
567: if (!inline_change) {
568: Z_STRVAL_P(p) = actual;
569: Z_STRLEN_P(p) = actual_len;
570: zval_copy_ctor(p);
571: }
572: }
573: } else {
574: if (inline_change) {
575: STR_FREE(Z_STRVAL_P(p));
576: }
577: *p = const_value;
578: }
579:
580: Z_SET_REFCOUNT_P(p, refcount);
581: Z_SET_ISREF_TO_P(p, is_ref);
582: } else if (Z_TYPE_P(p) == IS_CONSTANT_ARRAY) {
583: zval **element, *new_val;
584: char *str_index;
585: uint str_index_len;
586: ulong num_index;
587: int ret;
588:
589: SEPARATE_ZVAL_IF_NOT_REF(pp);
590: p = *pp;
591: Z_TYPE_P(p) = IS_ARRAY;
592:
593: if (!inline_change) {
594: zval *tmp;
595: HashTable *tmp_ht = NULL;
596:
597: ALLOC_HASHTABLE(tmp_ht);
598: zend_hash_init(tmp_ht, zend_hash_num_elements(Z_ARRVAL_P(p)), NULL, ZVAL_PTR_DTOR, 0);
599: zend_hash_copy(tmp_ht, Z_ARRVAL_P(p), (copy_ctor_func_t) zval_deep_copy, (void *) &tmp, sizeof(zval *));
600: Z_ARRVAL_P(p) = tmp_ht;
601: }
602:
603: /* First go over the array and see if there are any constant indices */
604: zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));
605: while (zend_hash_get_current_data(Z_ARRVAL_P(p), (void **) &element) == SUCCESS) {
606: if (!(Z_TYPE_PP(element) & IS_CONSTANT_INDEX)) {
607: zend_hash_move_forward(Z_ARRVAL_P(p));
608: continue;
609: }
610: Z_TYPE_PP(element) &= ~IS_CONSTANT_INDEX;
611: if (zend_hash_get_current_key_ex(Z_ARRVAL_P(p), &str_index, &str_index_len, &num_index, 0, NULL) != HASH_KEY_IS_STRING) {
612: zend_hash_move_forward(Z_ARRVAL_P(p));
613: continue;
614: }
615: if (!zend_get_constant_ex(str_index, str_index_len - 3, &const_value, scope, str_index[str_index_len - 2] TSRMLS_CC)) {
616: char *actual;
617: const char *save = str_index;
618: if ((colon = (char*)zend_memrchr(str_index, ':', str_index_len - 3))) {
619: zend_error(E_ERROR, "Undefined class constant '%s'", str_index);
620: str_index_len -= ((colon - str_index) + 1);
621: str_index = colon;
622: } else {
623: if (str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) {
624: if ((actual = (char *)zend_memrchr(str_index, '\\', str_index_len - 3))) {
625: actual++;
626: str_index_len -= (actual - str_index);
627: str_index = actual;
628: }
629: }
630: if (str_index[0] == '\\') {
631: ++str_index;
632: --str_index_len;
633: }
634: if (save[0] == '\\') {
635: ++save;
636: }
637: if ((str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) == 0) {
638: zend_error(E_ERROR, "Undefined constant '%s'", save);
639: }
640: zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", str_index, str_index);
641: }
642: ZVAL_STRINGL(&const_value, str_index, str_index_len-3, 1);
643: }
644:
645: if (Z_REFCOUNT_PP(element) > 1) {
646: ALLOC_ZVAL(new_val);
647: *new_val = **element;
648: zval_copy_ctor(new_val);
649: Z_SET_REFCOUNT_P(new_val, 1);
650: Z_UNSET_ISREF_P(new_val);
651:
652: /* preserve this bit for inheritance */
653: Z_TYPE_PP(element) |= IS_CONSTANT_INDEX;
654: zval_ptr_dtor(element);
655: *element = new_val;
656: }
657:
658: switch (Z_TYPE(const_value)) {
659: case IS_STRING:
660: ret = zend_symtable_update_current_key(Z_ARRVAL_P(p), Z_STRVAL(const_value), Z_STRLEN(const_value) + 1, HASH_UPDATE_KEY_IF_BEFORE);
661: break;
662: case IS_BOOL:
663: case IS_LONG:
664: 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);
665: break;
666: case IS_DOUBLE:
667: 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);
668: break;
669: case IS_NULL:
670: ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_STRING, "", 1, 0, HASH_UPDATE_KEY_IF_BEFORE, NULL);
671: break;
672: default:
673: ret = SUCCESS;
674: break;
675: }
676: if (ret == SUCCESS) {
677: zend_hash_move_forward(Z_ARRVAL_P(p));
678: }
679: zval_dtor(&const_value);
680: }
681: zend_hash_apply_with_argument(Z_ARRVAL_P(p), (apply_func_arg_t) zval_update_constant_inline_change, (void *) scope TSRMLS_CC);
682: zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));
683: }
684: return 0;
685: }
686: /* }}} */
687:
688: ZEND_API int zval_update_constant_inline_change(zval **pp, void *scope TSRMLS_DC) /* {{{ */
689: {
690: return zval_update_constant_ex(pp, (void*)1, scope TSRMLS_CC);
691: }
692: /* }}} */
693:
694: ZEND_API int zval_update_constant_no_inline_change(zval **pp, void *scope TSRMLS_DC) /* {{{ */
695: {
696: return zval_update_constant_ex(pp, (void*)0, scope TSRMLS_CC);
697: }
698: /* }}} */
699:
700: ZEND_API int zval_update_constant(zval **pp, void *arg TSRMLS_DC) /* {{{ */
701: {
702: return zval_update_constant_ex(pp, arg, NULL TSRMLS_CC);
703: }
704: /* }}} */
705:
706: int call_user_function(HashTable *function_table, zval **object_pp, zval *function_name, zval *retval_ptr, zend_uint param_count, zval *params[] TSRMLS_DC) /* {{{ */
707: {
708: zval ***params_array;
709: zend_uint i;
710: int ex_retval;
711: zval *local_retval_ptr = NULL;
712:
713: if (param_count) {
714: params_array = (zval ***) emalloc(sizeof(zval **)*param_count);
715: for (i=0; i<param_count; i++) {
716: params_array[i] = ¶ms[i];
717: }
718: } else {
719: params_array = NULL;
720: }
721: ex_retval = call_user_function_ex(function_table, object_pp, function_name, &local_retval_ptr, param_count, params_array, 1, NULL TSRMLS_CC);
722: if (local_retval_ptr) {
723: COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);
724: } else {
725: INIT_ZVAL(*retval_ptr);
726: }
727: if (params_array) {
728: efree(params_array);
729: }
730: return ex_retval;
731: }
732: /* }}} */
733:
734: 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) /* {{{ */
735: {
736: zend_fcall_info fci;
737:
738: fci.size = sizeof(fci);
739: fci.function_table = function_table;
740: fci.object_ptr = object_pp ? *object_pp : NULL;
741: fci.function_name = function_name;
742: fci.retval_ptr_ptr = retval_ptr_ptr;
743: fci.param_count = param_count;
744: fci.params = params;
745: fci.no_separation = (zend_bool) no_separation;
746: fci.symbol_table = symbol_table;
747:
748: return zend_call_function(&fci, NULL TSRMLS_CC);
749: }
750: /* }}} */
751:
752: int zend_call_function(zend_fcall_info *fci, zend_fcall_info_cache *fci_cache TSRMLS_DC) /* {{{ */
753: {
754: zend_uint i;
755: zval **original_return_value;
756: HashTable *calling_symbol_table;
757: zend_op_array *original_op_array;
758: zend_op **original_opline_ptr;
759: zend_class_entry *current_scope;
760: zend_class_entry *current_called_scope;
761: zend_class_entry *calling_scope = NULL;
762: zend_class_entry *called_scope = NULL;
763: zval *current_this;
764: zend_execute_data execute_data;
765: zend_fcall_info_cache fci_cache_local;
766:
767: *fci->retval_ptr_ptr = NULL;
768:
769: if (!EG(active)) {
770: return FAILURE; /* executor is already inactive */
771: }
772:
773: if (EG(exception)) {
774: return FAILURE; /* we would result in an instable executor otherwise */
775: }
776:
777: switch (fci->size) {
778: case sizeof(zend_fcall_info):
779: break; /* nothing to do currently */
780: default:
781: zend_error(E_ERROR, "Corrupted fcall_info provided to zend_call_function()");
782: break;
783: }
784:
785: /* Initialize execute_data */
786: if (EG(current_execute_data)) {
787: execute_data = *EG(current_execute_data);
788: EX(op_array) = NULL;
789: EX(opline) = NULL;
790: EX(object) = NULL;
791: } else {
792: /* This only happens when we're called outside any execute()'s
793: * It shouldn't be strictly necessary to NULL execute_data out,
794: * but it may make bugs easier to spot
795: */
796: memset(&execute_data, 0, sizeof(zend_execute_data));
797: }
798:
799: if (!fci_cache || !fci_cache->initialized) {
800: char *callable_name;
801: char *error = NULL;
802:
803: if (!fci_cache) {
804: fci_cache = &fci_cache_local;
805: }
806:
807: if (!zend_is_callable_ex(fci->function_name, fci->object_ptr, IS_CALLABLE_CHECK_SILENT, &callable_name, NULL, fci_cache, &error TSRMLS_CC)) {
808: if (error) {
809: zend_error(E_WARNING, "Invalid callback %s, %s", callable_name, error);
810: efree(error);
811: }
812: if (callable_name) {
813: efree(callable_name);
814: }
815: return FAILURE;
816: } else if (error) {
817: /* Capitalize the first latter of the error message */
818: if (error[0] >= 'a' && error[0] <= 'z') {
819: error[0] += ('A' - 'a');
820: }
821: zend_error(E_STRICT, "%s", error);
822: efree(error);
823: }
824: efree(callable_name);
825: }
826:
827: EX(function_state).function = fci_cache->function_handler;
828: calling_scope = fci_cache->calling_scope;
829: called_scope = fci_cache->called_scope;
830: fci->object_ptr = fci_cache->object_ptr;
831: EX(object) = fci->object_ptr;
832: if (fci->object_ptr && Z_TYPE_P(fci->object_ptr) == IS_OBJECT &&
833: (!EG(objects_store).object_buckets || !EG(objects_store).object_buckets[Z_OBJ_HANDLE_P(fci->object_ptr)].valid)) {
834: return FAILURE;
835: }
836:
837: if (EX(function_state).function->common.fn_flags & (ZEND_ACC_ABSTRACT|ZEND_ACC_DEPRECATED)) {
838: if (EX(function_state).function->common.fn_flags & ZEND_ACC_ABSTRACT) {
839: 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);
840: }
841: if (EX(function_state).function->common.fn_flags & ZEND_ACC_DEPRECATED) {
842: zend_error(E_DEPRECATED, "Function %s%s%s() is deprecated",
843: EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",
844: EX(function_state).function->common.scope ? "::" : "",
845: EX(function_state).function->common.function_name);
846: }
847: }
848:
849: ZEND_VM_STACK_GROW_IF_NEEDED(fci->param_count + 1);
850:
851: for (i=0; i<fci->param_count; i++) {
852: zval *param;
853:
854: if (ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i + 1)) {
855: if (!PZVAL_IS_REF(*fci->params[i]) && Z_REFCOUNT_PP(fci->params[i]) > 1) {
856: zval *new_zval;
857:
858: if (fci->no_separation &&
859: !ARG_MAY_BE_SENT_BY_REF(EX(function_state).function, i + 1)) {
860: if (i || UNEXPECTED(ZEND_VM_STACK_ELEMETS(EG(argument_stack)) == (EG(argument_stack)->top))) {
861: /* hack to clean up the stack */
862: zend_vm_stack_push_nocheck((void *) (zend_uintptr_t)i TSRMLS_CC);
863: zend_vm_stack_clear_multiple(TSRMLS_C);
864: }
865:
866: zend_error(E_WARNING, "Parameter %d to %s%s%s() expected to be a reference, value given",
867: i+1,
868: EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",
869: EX(function_state).function->common.scope ? "::" : "",
870: EX(function_state).function->common.function_name);
871: return FAILURE;
872: }
873:
874: ALLOC_ZVAL(new_zval);
875: *new_zval = **fci->params[i];
876: zval_copy_ctor(new_zval);
877: Z_SET_REFCOUNT_P(new_zval, 1);
878: Z_DELREF_PP(fci->params[i]);
879: *fci->params[i] = new_zval;
880: }
881: Z_ADDREF_PP(fci->params[i]);
882: Z_SET_ISREF_PP(fci->params[i]);
883: param = *fci->params[i];
884: } else if (PZVAL_IS_REF(*fci->params[i]) &&
885: /* don't separate references for __call */
886: (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) == 0 ) {
887: ALLOC_ZVAL(param);
888: *param = **(fci->params[i]);
889: INIT_PZVAL(param);
890: zval_copy_ctor(param);
891: } else if (*fci->params[i] != &EG(uninitialized_zval)) {
892: Z_ADDREF_PP(fci->params[i]);
893: param = *fci->params[i];
894: } else {
895: ALLOC_ZVAL(param);
896: *param = **(fci->params[i]);
897: INIT_PZVAL(param);
898: }
899: zend_vm_stack_push_nocheck(param TSRMLS_CC);
900: }
901:
902: EX(function_state).arguments = zend_vm_stack_top(TSRMLS_C);
903: zend_vm_stack_push_nocheck((void*)(zend_uintptr_t)fci->param_count TSRMLS_CC);
904:
905: current_scope = EG(scope);
906: EG(scope) = calling_scope;
907:
908: current_this = EG(This);
909:
910: current_called_scope = EG(called_scope);
911: if (called_scope) {
912: EG(called_scope) = called_scope;
913: } else if (EX(function_state).function->type != ZEND_INTERNAL_FUNCTION) {
914: EG(called_scope) = NULL;
915: }
916:
917: if (fci->object_ptr) {
918: if ((EX(function_state).function->common.fn_flags & ZEND_ACC_STATIC)) {
919: EG(This) = NULL;
920: } else {
921: EG(This) = fci->object_ptr;
922:
923: if (!PZVAL_IS_REF(EG(This))) {
924: Z_ADDREF_P(EG(This)); /* For $this pointer */
925: } else {
926: zval *this_ptr;
927:
928: ALLOC_ZVAL(this_ptr);
929: *this_ptr = *EG(This);
930: INIT_PZVAL(this_ptr);
931: zval_copy_ctor(this_ptr);
932: EG(This) = this_ptr;
933: }
934: }
935: } else {
936: EG(This) = NULL;
937: }
938:
939: EX(prev_execute_data) = EG(current_execute_data);
940: EG(current_execute_data) = &execute_data;
941:
942: if (EX(function_state).function->type == ZEND_USER_FUNCTION) {
943: calling_symbol_table = EG(active_symbol_table);
944: EG(scope) = EX(function_state).function->common.scope;
945: if (fci->symbol_table) {
946: EG(active_symbol_table) = fci->symbol_table;
947: } else {
948: EG(active_symbol_table) = NULL;
949: }
950:
951: original_return_value = EG(return_value_ptr_ptr);
952: original_op_array = EG(active_op_array);
953: EG(return_value_ptr_ptr) = fci->retval_ptr_ptr;
954: EG(active_op_array) = (zend_op_array *) EX(function_state).function;
955: original_opline_ptr = EG(opline_ptr);
956: zend_execute(EG(active_op_array) TSRMLS_CC);
957: if (!fci->symbol_table && EG(active_symbol_table)) {
958: if (EG(symtable_cache_ptr)>=EG(symtable_cache_limit)) {
959: zend_hash_destroy(EG(active_symbol_table));
960: FREE_HASHTABLE(EG(active_symbol_table));
961: } else {
962: /* clean before putting into the cache, since clean
963: could call dtors, which could use cached hash */
964: zend_hash_clean(EG(active_symbol_table));
965: *(++EG(symtable_cache_ptr)) = EG(active_symbol_table);
966: }
967: }
968: EG(active_symbol_table) = calling_symbol_table;
969: EG(active_op_array) = original_op_array;
970: EG(return_value_ptr_ptr)=original_return_value;
971: EG(opline_ptr) = original_opline_ptr;
972: } else if (EX(function_state).function->type == ZEND_INTERNAL_FUNCTION) {
973: int call_via_handler = (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) != 0;
974: ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);
975: if (EX(function_state).function->common.scope) {
976: EG(scope) = EX(function_state).function->common.scope;
977: }
978: ((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);
979: /* We shouldn't fix bad extensions here,
980: because it can break proper ones (Bug #34045)
981: if (!EX(function_state).function->common.return_reference)
982: {
983: INIT_PZVAL(*fci->retval_ptr_ptr);
984: }*/
985: if (EG(exception) && fci->retval_ptr_ptr) {
986: zval_ptr_dtor(fci->retval_ptr_ptr);
987: *fci->retval_ptr_ptr = NULL;
988: }
989:
990: if (call_via_handler) {
991: /* We must re-initialize function again */
992: fci_cache->initialized = 0;
993: }
994: } else { /* ZEND_OVERLOADED_FUNCTION */
995: ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);
996:
997: /* Not sure what should be done here if it's a static method */
998: if (fci->object_ptr) {
999: 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);
1000: } else {
1001: zend_error_noreturn(E_ERROR, "Cannot call overloaded function for non-object");
1002: }
1003:
1004: if (EX(function_state).function->type == ZEND_OVERLOADED_FUNCTION_TEMPORARY) {
1005: efree((char*)EX(function_state).function->common.function_name);
1006: }
1007: efree(EX(function_state).function);
1008:
1009: if (EG(exception) && fci->retval_ptr_ptr) {
1010: zval_ptr_dtor(fci->retval_ptr_ptr);
1011: *fci->retval_ptr_ptr = NULL;
1012: }
1013: }
1014: zend_vm_stack_clear_multiple(TSRMLS_C);
1015:
1016: if (EG(This)) {
1017: zval_ptr_dtor(&EG(This));
1018: }
1019: EG(called_scope) = current_called_scope;
1020: EG(scope) = current_scope;
1021: EG(This) = current_this;
1022: EG(current_execute_data) = EX(prev_execute_data);
1023:
1024: if (EG(exception)) {
1025: zend_throw_exception_internal(NULL TSRMLS_CC);
1026: }
1027: return SUCCESS;
1028: }
1029: /* }}} */
1030:
1031: 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) /* {{{ */
1032: {
1033: zval **args[1];
1034: zval autoload_function;
1035: zval *class_name_ptr;
1036: zval *retval_ptr = NULL;
1037: int retval, lc_length;
1038: char *lc_name;
1039: char *lc_free;
1040: zend_fcall_info fcall_info;
1041: zend_fcall_info_cache fcall_cache;
1042: char dummy = 1;
1043: ulong hash;
1044: ALLOCA_FLAG(use_heap)
1045:
1046: if (key) {
1047: lc_name = Z_STRVAL(key->constant);
1048: lc_length = Z_STRLEN(key->constant) + 1;
1049: hash = key->hash_value;
1050: } else {
1051: if (name == NULL || !name_length) {
1052: return FAILURE;
1053: }
1054:
1055: lc_free = lc_name = do_alloca(name_length + 1, use_heap);
1056: zend_str_tolower_copy(lc_name, name, name_length);
1057: lc_length = name_length + 1;
1058:
1059: if (lc_name[0] == '\\') {
1060: lc_name += 1;
1061: lc_length -= 1;
1062: }
1063:
1064: hash = zend_inline_hash_func(lc_name, lc_length);
1065: }
1066:
1067: if (zend_hash_quick_find(EG(class_table), lc_name, lc_length, hash, (void **) ce) == SUCCESS) {
1068: if (!key) {
1069: free_alloca(lc_free, use_heap);
1070: }
1071: return SUCCESS;
1072: }
1073:
1074: /* The compiler is not-reentrant. Make sure we __autoload() only during run-time
1075: * (doesn't impact functionality of __autoload()
1076: */
1077: if (!use_autoload || zend_is_compiling(TSRMLS_C)) {
1078: if (!key) {
1079: free_alloca(lc_free, use_heap);
1080: }
1081: return FAILURE;
1082: }
1083:
1084: if (EG(in_autoload) == NULL) {
1085: ALLOC_HASHTABLE(EG(in_autoload));
1086: zend_hash_init(EG(in_autoload), 0, NULL, NULL, 0);
1087: }
1088:
1089: if (zend_hash_quick_add(EG(in_autoload), lc_name, lc_length, hash, (void**)&dummy, sizeof(char), NULL) == FAILURE) {
1090: if (!key) {
1091: free_alloca(lc_free, use_heap);
1092: }
1093: return FAILURE;
1094: }
1095:
1096: ZVAL_STRINGL(&autoload_function, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME) - 1, 0);
1097:
1098: ALLOC_ZVAL(class_name_ptr);
1099: INIT_PZVAL(class_name_ptr);
1100: if (name[0] == '\\') {
1101: ZVAL_STRINGL(class_name_ptr, name+1, name_length-1, 1);
1102: } else {
1103: ZVAL_STRINGL(class_name_ptr, name, name_length, 1);
1104: }
1105:
1106: args[0] = &class_name_ptr;
1107:
1108: fcall_info.size = sizeof(fcall_info);
1109: fcall_info.function_table = EG(function_table);
1110: fcall_info.function_name = &autoload_function;
1111: fcall_info.symbol_table = NULL;
1112: fcall_info.retval_ptr_ptr = &retval_ptr;
1113: fcall_info.param_count = 1;
1114: fcall_info.params = args;
1115: fcall_info.object_ptr = NULL;
1116: fcall_info.no_separation = 1;
1117:
1118: fcall_cache.initialized = EG(autoload_func) ? 1 : 0;
1119: fcall_cache.function_handler = EG(autoload_func);
1120: fcall_cache.calling_scope = NULL;
1121: fcall_cache.called_scope = NULL;
1122: fcall_cache.object_ptr = NULL;
1123:
1124: zend_exception_save(TSRMLS_C);
1125: retval = zend_call_function(&fcall_info, &fcall_cache TSRMLS_CC);
1126: zend_exception_restore(TSRMLS_C);
1127:
1128: EG(autoload_func) = fcall_cache.function_handler;
1129:
1130: zval_ptr_dtor(&class_name_ptr);
1131:
1132: zend_hash_quick_del(EG(in_autoload), lc_name, lc_length, hash);
1133:
1134: if (retval_ptr) {
1135: zval_ptr_dtor(&retval_ptr);
1136: }
1137:
1138: if (retval == SUCCESS) {
1139: retval = zend_hash_quick_find(EG(class_table), lc_name, lc_length, hash, (void **) ce);
1140: }
1141: if (!key) {
1142: free_alloca(lc_free, use_heap);
1143: }
1144: return retval;
1145: }
1146: /* }}} */
1147:
1148: ZEND_API int zend_lookup_class(const char *name, int name_length, zend_class_entry ***ce TSRMLS_DC) /* {{{ */
1149: {
1150: return zend_lookup_class_ex(name, name_length, NULL, 1, ce TSRMLS_CC);
1151: }
1152: /* }}} */
1153:
1154: ZEND_API int zend_eval_stringl(char *str, int str_len, zval *retval_ptr, char *string_name TSRMLS_DC) /* {{{ */
1155: {
1156: zval pv;
1157: zend_op_array *new_op_array;
1158: zend_op_array *original_active_op_array = EG(active_op_array);
1159: zend_uint original_compiler_options;
1160: int retval;
1161:
1162: if (retval_ptr) {
1163: Z_STRLEN(pv) = str_len + sizeof("return ;") - 1;
1164: Z_STRVAL(pv) = emalloc(Z_STRLEN(pv) + 1);
1165: memcpy(Z_STRVAL(pv), "return ", sizeof("return ") - 1);
1166: memcpy(Z_STRVAL(pv) + sizeof("return ") - 1, str, str_len);
1167: Z_STRVAL(pv)[Z_STRLEN(pv) - 1] = ';';
1168: Z_STRVAL(pv)[Z_STRLEN(pv)] = '\0';
1169: } else {
1170: Z_STRLEN(pv) = str_len;
1171: Z_STRVAL(pv) = str;
1172: }
1173: Z_TYPE(pv) = IS_STRING;
1174:
1175: /*printf("Evaluating '%s'\n", pv.value.str.val);*/
1176:
1177: original_compiler_options = CG(compiler_options);
1178: CG(compiler_options) = ZEND_COMPILE_DEFAULT_FOR_EVAL;
1179: new_op_array = zend_compile_string(&pv, string_name TSRMLS_CC);
1180: CG(compiler_options) = original_compiler_options;
1181:
1182: if (new_op_array) {
1183: zval *local_retval_ptr=NULL;
1184: zval **original_return_value_ptr_ptr = EG(return_value_ptr_ptr);
1185: zend_op **original_opline_ptr = EG(opline_ptr);
1186: int orig_interactive = CG(interactive);
1187:
1188: EG(return_value_ptr_ptr) = &local_retval_ptr;
1189: EG(active_op_array) = new_op_array;
1190: EG(no_extensions)=1;
1191: if (!EG(active_symbol_table)) {
1192: zend_rebuild_symbol_table(TSRMLS_C);
1193: }
1194: CG(interactive) = 0;
1195:
1196: zend_try {
1197: zend_execute(new_op_array TSRMLS_CC);
1198: } zend_catch {
1199: destroy_op_array(new_op_array TSRMLS_CC);
1200: efree(new_op_array);
1201: zend_bailout();
1202: } zend_end_try();
1203:
1204: CG(interactive) = orig_interactive;
1205: if (local_retval_ptr) {
1206: if (retval_ptr) {
1207: COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);
1208: } else {
1209: zval_ptr_dtor(&local_retval_ptr);
1210: }
1211: } else {
1212: if (retval_ptr) {
1213: INIT_ZVAL(*retval_ptr);
1214: }
1215: }
1216:
1217: EG(no_extensions)=0;
1218: EG(opline_ptr) = original_opline_ptr;
1219: EG(active_op_array) = original_active_op_array;
1220: destroy_op_array(new_op_array TSRMLS_CC);
1221: efree(new_op_array);
1222: EG(return_value_ptr_ptr) = original_return_value_ptr_ptr;
1223: retval = SUCCESS;
1224: } else {
1225: retval = FAILURE;
1226: }
1227: if (retval_ptr) {
1228: zval_dtor(&pv);
1229: }
1230: return retval;
1231: }
1232: /* }}} */
1233:
1234: ZEND_API int zend_eval_string(char *str, zval *retval_ptr, char *string_name TSRMLS_DC) /* {{{ */
1235: {
1236: return zend_eval_stringl(str, strlen(str), retval_ptr, string_name TSRMLS_CC);
1237: }
1238: /* }}} */
1239:
1240: ZEND_API int zend_eval_stringl_ex(char *str, int str_len, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC) /* {{{ */
1241: {
1242: int result;
1243:
1244: result = zend_eval_stringl(str, str_len, retval_ptr, string_name TSRMLS_CC);
1245: if (handle_exceptions && EG(exception)) {
1246: zend_exception_error(EG(exception), E_ERROR TSRMLS_CC);
1247: result = FAILURE;
1248: }
1249: return result;
1250: }
1251: /* }}} */
1252:
1253: ZEND_API int zend_eval_string_ex(char *str, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC) /* {{{ */
1254: {
1255: return zend_eval_stringl_ex(str, strlen(str), retval_ptr, string_name, handle_exceptions TSRMLS_CC);
1256: }
1257: /* }}} */
1258:
1259: void execute_new_code(TSRMLS_D) /* {{{ */
1260: {
1261: zend_op *opline, *end;
1262: zend_op *ret_opline;
1263: int orig_interactive;
1264:
1265: if (!(CG(active_op_array)->fn_flags & ZEND_ACC_INTERACTIVE)
1266: || CG(context).backpatch_count>0
1267: || CG(active_op_array)->function_name
1268: || CG(active_op_array)->type!=ZEND_USER_FUNCTION) {
1269: return;
1270: }
1271:
1272: ret_opline = get_next_op(CG(active_op_array) TSRMLS_CC);
1273: ret_opline->opcode = ZEND_RETURN;
1274: ret_opline->op1_type = IS_CONST;
1275: ret_opline->op1.constant = zend_add_literal(CG(active_op_array), &EG(uninitialized_zval) TSRMLS_CC);
1276: SET_UNUSED(ret_opline->op2);
1277:
1278: if (!EG(start_op)) {
1279: EG(start_op) = CG(active_op_array)->opcodes;
1280: }
1281:
1282: opline=EG(start_op);
1283: end=CG(active_op_array)->opcodes+CG(active_op_array)->last;
1284:
1285: while (opline<end) {
1286: if (opline->op1_type == IS_CONST) {
1287: opline->op1.zv = &CG(active_op_array)->literals[opline->op1.constant].constant;
1288: }
1289: if (opline->op2_type == IS_CONST) {
1290: opline->op2.zv = &CG(active_op_array)->literals[opline->op2.constant].constant;
1291: }
1292: switch (opline->opcode) {
1293: case ZEND_GOTO:
1294: if (Z_TYPE_P(opline->op2.zv) != IS_LONG) {
1295: zend_resolve_goto_label(CG(active_op_array), opline, 1 TSRMLS_CC);
1296: }
1297: /* break omitted intentionally */
1298: case ZEND_JMP:
1299: opline->op1.jmp_addr = &CG(active_op_array)->opcodes[opline->op1.opline_num];
1300: break;
1301: case ZEND_JMPZ:
1302: case ZEND_JMPNZ:
1303: case ZEND_JMPZ_EX:
1304: case ZEND_JMPNZ_EX:
1305: case ZEND_JMP_SET:
1306: case ZEND_JMP_SET_VAR:
1307: opline->op2.jmp_addr = &CG(active_op_array)->opcodes[opline->op2.opline_num];
1308: break;
1309: }
1310: ZEND_VM_SET_OPCODE_HANDLER(opline);
1311: opline++;
1312: }
1313:
1314: zend_release_labels(1 TSRMLS_CC);
1315:
1316: EG(return_value_ptr_ptr) = NULL;
1317: EG(active_op_array) = CG(active_op_array);
1318: orig_interactive = CG(interactive);
1319: CG(interactive) = 0;
1320: zend_execute(CG(active_op_array) TSRMLS_CC);
1321: CG(interactive) = orig_interactive;
1322:
1323: if (EG(exception)) {
1324: zend_exception_error(EG(exception), E_ERROR TSRMLS_CC);
1325: }
1326:
1327: CG(active_op_array)->last -= 1; /* get rid of that ZEND_RETURN */
1328: EG(start_op) = CG(active_op_array)->opcodes+CG(active_op_array)->last;
1329: }
1330: /* }}} */
1331:
1332: ZEND_API void zend_timeout(int dummy) /* {{{ */
1333: {
1334: TSRMLS_FETCH();
1335:
1336: if (zend_on_timeout) {
1337: #ifdef ZEND_SIGNALS
1338: /*
1339: We got here because we got a timeout signal, so we are in a signal handler
1340: at this point. However, we want to be able to timeout any user-supplied
1341: shutdown functions, so pretend we are not in a signal handler while we are
1342: calling these
1343: */
1344: SIGG(running) = 0;
1345: #endif
1346: zend_on_timeout(EG(timeout_seconds) TSRMLS_CC);
1347: }
1348:
1349: zend_error(E_ERROR, "Maximum execution time of %d second%s exceeded", EG(timeout_seconds), EG(timeout_seconds) == 1 ? "" : "s");
1350: }
1351: /* }}} */
1352:
1353: #ifdef ZEND_WIN32
1354: static LRESULT CALLBACK zend_timeout_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) /* {{{ */
1355: {
1356: switch (message) {
1357: case WM_DESTROY:
1358: PostQuitMessage(0);
1359: break;
1360: case WM_REGISTER_ZEND_TIMEOUT:
1361: /* wParam is the thread id pointer, lParam is the timeout amount in seconds */
1362: if (lParam == 0) {
1363: KillTimer(timeout_window, wParam);
1364: } else {
1365: #ifdef ZTS
1366: void ***tsrm_ls;
1367: #endif
1368: SetTimer(timeout_window, wParam, lParam*1000, NULL);
1369: #ifdef ZTS
1370: tsrm_ls = ts_resource_ex(0, &wParam);
1371: if (!tsrm_ls) {
1372: /* shouldn't normally happen */
1373: break;
1374: }
1375: #endif
1376: EG(timed_out) = 0;
1377: }
1378: break;
1379: case WM_UNREGISTER_ZEND_TIMEOUT:
1380: /* wParam is the thread id pointer */
1381: KillTimer(timeout_window, wParam);
1382: break;
1383: case WM_TIMER: {
1384: #ifdef ZTS
1385: void ***tsrm_ls;
1386:
1387: tsrm_ls = ts_resource_ex(0, &wParam);
1388: if (!tsrm_ls) {
1389: /* Thread died before receiving its timeout? */
1390: break;
1391: }
1392: #endif
1393: KillTimer(timeout_window, wParam);
1394: EG(timed_out) = 1;
1395: }
1396: break;
1397: default:
1398: return DefWindowProc(hWnd, message, wParam, lParam);
1399: }
1400: return 0;
1401: }
1402: /* }}} */
1403:
1404: static unsigned __stdcall timeout_thread_proc(void *pArgs) /* {{{ */
1405: {
1406: MSG message;
1407:
1408: wc.style=0;
1409: wc.lpfnWndProc = zend_timeout_WndProc;
1410: wc.cbClsExtra=0;
1411: wc.cbWndExtra=0;
1412: wc.hInstance=NULL;
1413: wc.hIcon=NULL;
1414: wc.hCursor=NULL;
1415: wc.hbrBackground=(HBRUSH)(COLOR_BACKGROUND + 5);
1416: wc.lpszMenuName=NULL;
1417: wc.lpszClassName = "Zend Timeout Window";
1418: if (!RegisterClass(&wc)) {
1419: return -1;
1420: }
1421: timeout_window = CreateWindow(wc.lpszClassName, wc.lpszClassName, 0, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, NULL, NULL);
1422: SetEvent(timeout_thread_event);
1423: while (GetMessage(&message, NULL, 0, 0)) {
1424: SendMessage(timeout_window, message.message, message.wParam, message.lParam);
1425: if (message.message == WM_QUIT) {
1426: break;
1427: }
1428: }
1429: DestroyWindow(timeout_window);
1430: UnregisterClass(wc.lpszClassName, NULL);
1431: SetEvent(timeout_thread_handle);
1432: return 0;
1433: }
1434: /* }}} */
1435:
1436: void zend_init_timeout_thread(void) /* {{{ */
1437: {
1438: timeout_thread_event = CreateEvent(NULL, FALSE, FALSE, NULL);
1439: timeout_thread_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
1440: _beginthreadex(NULL, 0, timeout_thread_proc, NULL, 0, &timeout_thread_id);
1441: WaitForSingleObject(timeout_thread_event, INFINITE);
1442: }
1443: /* }}} */
1444:
1445: void zend_shutdown_timeout_thread(void) /* {{{ */
1446: {
1447: if (!timeout_thread_initialized) {
1448: return;
1449: }
1450: PostThreadMessage(timeout_thread_id, WM_QUIT, 0, 0);
1451:
1452: /* Wait for thread termination */
1453: WaitForSingleObject(timeout_thread_handle, 5000);
1454: CloseHandle(timeout_thread_handle);
1455: timeout_thread_initialized = 0;
1456: }
1457: /* }}} */
1458:
1459: #endif
1460:
1461: /* This one doesn't exists on QNX */
1462: #ifndef SIGPROF
1463: #define SIGPROF 27
1464: #endif
1465:
1466: void zend_set_timeout(long seconds, int reset_signals) /* {{{ */
1467: {
1468: TSRMLS_FETCH();
1469:
1470: EG(timeout_seconds) = seconds;
1471:
1472: #ifdef ZEND_WIN32
1473: if(!seconds) {
1474: return;
1475: }
1476: if (timeout_thread_initialized == 0 && InterlockedIncrement(&timeout_thread_initialized) == 1) {
1477: /* We start up this process-wide thread here and not in zend_startup(), because if Zend
1478: * is initialized inside a DllMain(), you're not supposed to start threads from it.
1479: */
1480: zend_init_timeout_thread();
1481: }
1482: PostThreadMessage(timeout_thread_id, WM_REGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) seconds);
1483: #else
1484: # ifdef HAVE_SETITIMER
1485: {
1486: struct itimerval t_r; /* timeout requested */
1487: int signo;
1488:
1489: if(seconds) {
1490: t_r.it_value.tv_sec = seconds;
1491: t_r.it_value.tv_usec = t_r.it_interval.tv_sec = t_r.it_interval.tv_usec = 0;
1492:
1493: # ifdef __CYGWIN__
1494: setitimer(ITIMER_REAL, &t_r, NULL);
1495: }
1496: signo = SIGALRM;
1497: # else
1498: setitimer(ITIMER_PROF, &t_r, NULL);
1499: }
1500: signo = SIGPROF;
1501: # endif
1502:
1503: if (reset_signals) {
1504: # ifdef ZEND_SIGNALS
1505: zend_signal(signo, zend_timeout TSRMLS_CC);
1506: # else
1507: sigset_t sigset;
1508:
1509: signal(signo, zend_timeout);
1510: sigemptyset(&sigset);
1511: sigaddset(&sigset, signo);
1512: sigprocmask(SIG_UNBLOCK, &sigset, NULL);
1513: # endif
1514: }
1515: }
1516: # endif /* HAVE_SETITIMER */
1517: #endif
1518: }
1519: /* }}} */
1520:
1521: void zend_unset_timeout(TSRMLS_D) /* {{{ */
1522: {
1523: #ifdef ZEND_WIN32
1524: if(timeout_thread_initialized) {
1525: PostThreadMessage(timeout_thread_id, WM_UNREGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) 0);
1526: }
1527: #else
1528: # ifdef HAVE_SETITIMER
1529: if (EG(timeout_seconds)) {
1530: struct itimerval no_timeout;
1531:
1532: 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;
1533:
1534: #ifdef __CYGWIN__
1535: setitimer(ITIMER_REAL, &no_timeout, NULL);
1536: #else
1537: setitimer(ITIMER_PROF, &no_timeout, NULL);
1538: #endif
1539: }
1540: # endif
1541: #endif
1542: }
1543: /* }}} */
1544:
1545: zend_class_entry *zend_fetch_class(const char *class_name, uint class_name_len, int fetch_type TSRMLS_DC) /* {{{ */
1546: {
1547: zend_class_entry **pce;
1548: int use_autoload = (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) == 0;
1549: int silent = (fetch_type & ZEND_FETCH_CLASS_SILENT) != 0;
1550:
1551: fetch_type &= ZEND_FETCH_CLASS_MASK;
1552:
1553: check_fetch_type:
1554: switch (fetch_type) {
1555: case ZEND_FETCH_CLASS_SELF:
1556: if (!EG(scope)) {
1557: zend_error(E_ERROR, "Cannot access self:: when no class scope is active");
1558: }
1559: return EG(scope);
1560: case ZEND_FETCH_CLASS_PARENT:
1561: if (!EG(scope)) {
1562: zend_error(E_ERROR, "Cannot access parent:: when no class scope is active");
1563: }
1564: if (!EG(scope)->parent) {
1565: zend_error(E_ERROR, "Cannot access parent:: when current class scope has no parent");
1566: }
1567: return EG(scope)->parent;
1568: case ZEND_FETCH_CLASS_STATIC:
1569: if (!EG(called_scope)) {
1570: zend_error(E_ERROR, "Cannot access static:: when no class scope is active");
1571: }
1572: return EG(called_scope);
1573: case ZEND_FETCH_CLASS_AUTO: {
1574: fetch_type = zend_get_class_fetch_type(class_name, class_name_len);
1575: if (fetch_type!=ZEND_FETCH_CLASS_DEFAULT) {
1576: goto check_fetch_type;
1577: }
1578: }
1579: break;
1580: }
1581:
1582: if (zend_lookup_class_ex(class_name, class_name_len, NULL, use_autoload, &pce TSRMLS_CC) == FAILURE) {
1583: if (use_autoload) {
1584: if (!silent && !EG(exception)) {
1585: if (fetch_type == ZEND_FETCH_CLASS_INTERFACE) {
1586: zend_error(E_ERROR, "Interface '%s' not found", class_name);
1587: } else if (fetch_type == ZEND_FETCH_CLASS_TRAIT) {
1588: zend_error(E_ERROR, "Trait '%s' not found", class_name);
1589: } else {
1590: zend_error(E_ERROR, "Class '%s' not found", class_name);
1591: }
1592: }
1593: }
1594: return NULL;
1595: }
1596: return *pce;
1597: }
1598: /* }}} */
1599:
1600: 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) /* {{{ */
1601: {
1602: zend_class_entry **pce;
1603: int use_autoload = (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) == 0;
1604:
1605: if (zend_lookup_class_ex(class_name, class_name_len, key, use_autoload, &pce TSRMLS_CC) == FAILURE) {
1606: if (use_autoload) {
1607: if ((fetch_type & ZEND_FETCH_CLASS_SILENT) == 0 && !EG(exception)) {
1608: if ((fetch_type & ZEND_FETCH_CLASS_MASK) == ZEND_FETCH_CLASS_INTERFACE) {
1609: zend_error(E_ERROR, "Interface '%s' not found", class_name);
1610: } else if ((fetch_type & ZEND_FETCH_CLASS_MASK) == ZEND_FETCH_CLASS_TRAIT) {
1611: zend_error(E_ERROR, "Trait '%s' not found", class_name);
1612: } else {
1613: zend_error(E_ERROR, "Class '%s' not found", class_name);
1614: }
1615: }
1616: }
1617: return NULL;
1618: }
1619: return *pce;
1620: }
1621: /* }}} */
1622:
1623: #define MAX_ABSTRACT_INFO_CNT 3
1624: #define MAX_ABSTRACT_INFO_FMT "%s%s%s%s"
1625: #define DISPLAY_ABSTRACT_FN(idx) \
1626: ai.afn[idx] ? ZEND_FN_SCOPE_NAME(ai.afn[idx]) : "", \
1627: ai.afn[idx] ? "::" : "", \
1628: ai.afn[idx] ? ai.afn[idx]->common.function_name : "", \
1629: ai.afn[idx] && ai.afn[idx + 1] ? ", " : (ai.afn[idx] && ai.cnt > MAX_ABSTRACT_INFO_CNT ? ", ..." : "")
1630:
1631: typedef struct _zend_abstract_info {
1632: zend_function *afn[MAX_ABSTRACT_INFO_CNT + 1];
1633: int cnt;
1634: int ctor;
1635: } zend_abstract_info;
1636:
1637: static int zend_verify_abstract_class_function(zend_function *fn, zend_abstract_info *ai TSRMLS_DC) /* {{{ */
1638: {
1639: if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
1640: if (ai->cnt < MAX_ABSTRACT_INFO_CNT) {
1641: ai->afn[ai->cnt] = fn;
1642: }
1643: if (fn->common.fn_flags & ZEND_ACC_CTOR) {
1644: if (!ai->ctor) {
1645: ai->cnt++;
1646: ai->ctor = 1;
1647: } else {
1648: ai->afn[ai->cnt] = NULL;
1649: }
1650: } else {
1651: ai->cnt++;
1652: }
1653: }
1654: return 0;
1655: }
1656: /* }}} */
1657:
1658: void zend_verify_abstract_class(zend_class_entry *ce TSRMLS_DC) /* {{{ */
1659: {
1660: zend_abstract_info ai;
1661:
1662: if ((ce->ce_flags & ZEND_ACC_IMPLICIT_ABSTRACT_CLASS) && !(ce->ce_flags & ZEND_ACC_EXPLICIT_ABSTRACT_CLASS)) {
1663: memset(&ai, 0, sizeof(ai));
1664:
1665: zend_hash_apply_with_argument(&ce->function_table, (apply_func_arg_t) zend_verify_abstract_class_function, &ai TSRMLS_CC);
1666:
1667: if (ai.cnt) {
1668: 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 ")",
1669: ce->name, ai.cnt,
1670: ai.cnt > 1 ? "s" : "",
1671: DISPLAY_ABSTRACT_FN(0),
1672: DISPLAY_ABSTRACT_FN(1),
1673: DISPLAY_ABSTRACT_FN(2)
1674: );
1675: }
1676: }
1677: }
1678: /* }}} */
1679:
1680: ZEND_API void zend_reset_all_cv(HashTable *symbol_table TSRMLS_DC) /* {{{ */
1681: {
1682: zend_execute_data *ex;
1683: int i;
1684:
1685: for (ex = EG(current_execute_data); ex; ex = ex->prev_execute_data) {
1686: if (ex->op_array && ex->symbol_table == symbol_table) {
1687: for (i = 0; i < ex->op_array->last_var; i++) {
1688: ex->CVs[i] = NULL;
1689: }
1690: }
1691: }
1692: }
1693: /* }}} */
1694:
1695: ZEND_API void zend_delete_variable(zend_execute_data *ex, HashTable *ht, const char *name, int name_len, ulong hash_value TSRMLS_DC) /* {{{ */
1696: {
1697: if (zend_hash_quick_del(ht, name, name_len, hash_value) == SUCCESS) {
1698: name_len--;
1699: while (ex && ex->symbol_table == ht) {
1700: int i;
1701:
1702: if (ex->op_array) {
1703: for (i = 0; i < ex->op_array->last_var; i++) {
1704: if (ex->op_array->vars[i].hash_value == hash_value &&
1705: ex->op_array->vars[i].name_len == name_len &&
1706: !memcmp(ex->op_array->vars[i].name, name, name_len)) {
1707: ex->CVs[i] = NULL;
1708: break;
1709: }
1710: }
1711: }
1712: ex = ex->prev_execute_data;
1713: }
1714: }
1715: }
1716: /* }}} */
1717:
1718: ZEND_API int zend_delete_global_variable_ex(const char *name, int name_len, ulong hash_value TSRMLS_DC) /* {{{ */
1719: {
1720: zend_execute_data *ex;
1721:
1722: if (zend_hash_quick_exists(&EG(symbol_table), name, name_len + 1, hash_value)) {
1723: for (ex = EG(current_execute_data); ex; ex = ex->prev_execute_data) {
1724: if (ex->op_array && ex->symbol_table == &EG(symbol_table)) {
1725: int i;
1726: for (i = 0; i < ex->op_array->last_var; i++) {
1727: if (ex->op_array->vars[i].hash_value == hash_value &&
1728: ex->op_array->vars[i].name_len == name_len &&
1729: !memcmp(ex->op_array->vars[i].name, name, name_len)
1730: ) {
1731: ex->CVs[i] = NULL;
1732: break;
1733: }
1734: }
1735: }
1736: }
1737: return zend_hash_quick_del(&EG(symbol_table), name, name_len + 1, hash_value);
1738: }
1739: return FAILURE;
1740: }
1741: /* }}} */
1742:
1743: ZEND_API int zend_delete_global_variable(const char *name, int name_len TSRMLS_DC) /* {{{ */
1744: {
1745: return zend_delete_global_variable_ex(name, name_len, zend_inline_hash_func(name, name_len + 1) TSRMLS_CC);
1746: }
1747: /* }}} */
1748:
1749: ZEND_API void zend_rebuild_symbol_table(TSRMLS_D) /* {{{ */
1750: {
1751: zend_uint i;
1752: zend_execute_data *ex;
1753:
1754: if (!EG(active_symbol_table)) {
1755:
1756: /* Search for last called user function */
1757: ex = EG(current_execute_data);
1758: while (ex && !ex->op_array) {
1759: ex = ex->prev_execute_data;
1760: }
1761: if (ex && ex->symbol_table) {
1762: EG(active_symbol_table) = ex->symbol_table;
1763: return;
1764: }
1765:
1766: if (ex && ex->op_array) {
1767: if (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
1768: /*printf("Cache hit! Reusing %x\n", symtable_cache[symtable_cache_ptr]);*/
1769: EG(active_symbol_table) = *(EG(symtable_cache_ptr)--);
1770: } else {
1771: ALLOC_HASHTABLE(EG(active_symbol_table));
1772: zend_hash_init(EG(active_symbol_table), ex->op_array->last_var, NULL, ZVAL_PTR_DTOR, 0);
1773: /*printf("Cache miss! Initialized %x\n", EG(active_symbol_table));*/
1774: }
1775: ex->symbol_table = EG(active_symbol_table);
1776:
1777: if (ex->op_array->this_var != -1 &&
1778: !ex->CVs[ex->op_array->this_var] &&
1779: EG(This)) {
1780: ex->CVs[ex->op_array->this_var] = (zval**)ex->CVs + ex->op_array->last_var + ex->op_array->this_var;
1781: *ex->CVs[ex->op_array->this_var] = EG(This);
1782: }
1783: for (i = 0; i < ex->op_array->last_var; i++) {
1784: if (ex->CVs[i]) {
1785: zend_hash_quick_update(EG(active_symbol_table),
1786: ex->op_array->vars[i].name,
1787: ex->op_array->vars[i].name_len + 1,
1788: ex->op_array->vars[i].hash_value,
1789: (void**)ex->CVs[i],
1790: sizeof(zval*),
1791: (void**)&ex->CVs[i]);
1792: }
1793: }
1794: }
1795: }
1796: }
1797: /* }}} */
1798:
1799: /*
1800: * Local variables:
1801: * tab-width: 4
1802: * c-basic-offset: 4
1803: * indent-tabs-mode: t
1804: * End:
1805: */
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