Annotation of embedaddon/php/Zend/zend_execute_API.c, revision 1.1
1.1 ! misho 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 321634 2012-01-01 13:15:04Z felipe $ */
! 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);
! 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);
! 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: {
! 163: zval *globals;
! 164:
! 165: ALLOC_ZVAL(globals);
! 166: Z_SET_REFCOUNT_P(globals, 1);
! 167: Z_SET_ISREF_P(globals);
! 168: Z_TYPE_P(globals) = IS_ARRAY;
! 169: Z_ARRVAL_P(globals) = &EG(symbol_table);
! 170: zend_hash_update(&EG(symbol_table), "GLOBALS", sizeof("GLOBALS"), &globals, sizeof(zval *), NULL);
! 171: }
! 172: EG(active_symbol_table) = &EG(symbol_table);
! 173:
! 174: zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_activator TSRMLS_CC);
! 175: EG(opline_ptr) = NULL;
! 176:
! 177: zend_hash_init(&EG(included_files), 5, NULL, NULL, 0);
! 178:
! 179: EG(ticks_count) = 0;
! 180:
! 181: EG(user_error_handler) = NULL;
! 182:
! 183: EG(current_execute_data) = NULL;
! 184:
! 185: zend_stack_init(&EG(user_error_handlers_error_reporting));
! 186: zend_ptr_stack_init(&EG(user_error_handlers));
! 187: zend_ptr_stack_init(&EG(user_exception_handlers));
! 188:
! 189: zend_objects_store_init(&EG(objects_store), 1024);
! 190:
! 191: EG(full_tables_cleanup) = 0;
! 192: #ifdef ZEND_WIN32
! 193: EG(timed_out) = 0;
! 194: #endif
! 195:
! 196: EG(exception) = NULL;
! 197: EG(prev_exception) = NULL;
! 198:
! 199: EG(scope) = NULL;
! 200: EG(called_scope) = NULL;
! 201:
! 202: EG(This) = NULL;
! 203:
! 204: EG(active_op_array) = NULL;
! 205:
! 206: EG(active) = 1;
! 207: }
! 208: /* }}} */
! 209:
! 210: static int zval_call_destructor(zval **zv TSRMLS_DC) /* {{{ */
! 211: {
! 212: if (Z_TYPE_PP(zv) == IS_OBJECT && Z_REFCOUNT_PP(zv) == 1) {
! 213: return ZEND_HASH_APPLY_REMOVE;
! 214: } else {
! 215: return ZEND_HASH_APPLY_KEEP;
! 216: }
! 217: }
! 218: /* }}} */
! 219:
! 220: void shutdown_destructors(TSRMLS_D) /* {{{ */
! 221: {
! 222: zend_try {
! 223: int symbols;
! 224: do {
! 225: symbols = zend_hash_num_elements(&EG(symbol_table));
! 226: zend_hash_reverse_apply(&EG(symbol_table), (apply_func_t) zval_call_destructor TSRMLS_CC);
! 227: } while (symbols != zend_hash_num_elements(&EG(symbol_table)));
! 228: zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC);
! 229: } zend_catch {
! 230: /* if we couldn't destruct cleanly, mark all objects as destructed anyway */
! 231: zend_objects_store_mark_destructed(&EG(objects_store) TSRMLS_CC);
! 232: } zend_end_try();
! 233: }
! 234: /* }}} */
! 235:
! 236: void shutdown_executor(TSRMLS_D) /* {{{ */
! 237: {
! 238: zend_try {
! 239:
! 240: /* Removed because this can not be safely done, e.g. in this situation:
! 241: Object 1 creates object 2
! 242: Object 3 holds reference to object 2.
! 243: Now when 1 and 2 are destroyed, 3 can still access 2 in its destructor, with
! 244: very problematic results */
! 245: /* zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC); */
! 246:
! 247: /* Moved after symbol table cleaners, because some of the cleaners can call
! 248: destructors, which would use EG(symtable_cache_ptr) and thus leave leaks */
! 249: /* while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
! 250: zend_hash_destroy(*EG(symtable_cache_ptr));
! 251: efree(*EG(symtable_cache_ptr));
! 252: EG(symtable_cache_ptr)--;
! 253: }
! 254: */
! 255: zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_deactivator TSRMLS_CC);
! 256: zend_hash_graceful_reverse_destroy(&EG(symbol_table));
! 257: } zend_end_try();
! 258:
! 259: zend_try {
! 260: zval *zeh;
! 261: /* remove error handlers before destroying classes and functions,
! 262: * so that if handler used some class, crash would not happen */
! 263: if (EG(user_error_handler)) {
! 264: zeh = EG(user_error_handler);
! 265: EG(user_error_handler) = NULL;
! 266: zval_dtor(zeh);
! 267: FREE_ZVAL(zeh);
! 268: }
! 269:
! 270: if (EG(user_exception_handler)) {
! 271: zeh = EG(user_exception_handler);
! 272: EG(user_exception_handler) = NULL;
! 273: zval_dtor(zeh);
! 274: FREE_ZVAL(zeh);
! 275: }
! 276:
! 277: zend_stack_destroy(&EG(user_error_handlers_error_reporting));
! 278: zend_stack_init(&EG(user_error_handlers_error_reporting));
! 279: zend_ptr_stack_clean(&EG(user_error_handlers), ZVAL_DESTRUCTOR, 1);
! 280: zend_ptr_stack_clean(&EG(user_exception_handlers), ZVAL_DESTRUCTOR, 1);
! 281: } zend_end_try();
! 282:
! 283: zend_try {
! 284: /* Cleanup static data for functions and arrays.
! 285: * We need a separate cleanup stage because of the following problem:
! 286: * Suppose we destroy class X, which destroys the class's function table,
! 287: * and in the function table we have function foo() that has static $bar.
! 288: * Now if an object of class X is assigned to $bar, its destructor will be
! 289: * called and will fail since X's function table is in mid-destruction.
! 290: * So we want first of all to clean up all data and then move to tables destruction.
! 291: * Note that only run-time accessed data need to be cleaned up, pre-defined data can
! 292: * not contain objects and thus are not probelmatic */
! 293: if (EG(full_tables_cleanup)) {
! 294: zend_hash_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data_full TSRMLS_CC);
! 295: } else {
! 296: zend_hash_reverse_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data TSRMLS_CC);
! 297: }
! 298: zend_hash_apply(EG(class_table), (apply_func_t) zend_cleanup_class_data TSRMLS_CC);
! 299: } zend_end_try();
! 300:
! 301: zend_try {
! 302: zend_vm_stack_destroy(TSRMLS_C);
! 303:
! 304: zend_objects_store_free_object_storage(&EG(objects_store) TSRMLS_CC);
! 305:
! 306: /* Destroy all op arrays */
! 307: if (EG(full_tables_cleanup)) {
! 308: zend_hash_apply(EG(function_table), (apply_func_t) clean_non_persistent_function_full TSRMLS_CC);
! 309: zend_hash_apply(EG(class_table), (apply_func_t) clean_non_persistent_class_full TSRMLS_CC);
! 310: } else {
! 311: zend_hash_reverse_apply(EG(function_table), (apply_func_t) clean_non_persistent_function TSRMLS_CC);
! 312: zend_hash_reverse_apply(EG(class_table), (apply_func_t) clean_non_persistent_class TSRMLS_CC);
! 313: }
! 314:
! 315: while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
! 316: zend_hash_destroy(*EG(symtable_cache_ptr));
! 317: FREE_HASHTABLE(*EG(symtable_cache_ptr));
! 318: EG(symtable_cache_ptr)--;
! 319: }
! 320: } zend_end_try();
! 321:
! 322: zend_try {
! 323: clean_non_persistent_constants(TSRMLS_C);
! 324: } zend_end_try();
! 325:
! 326: zend_try {
! 327: #if 0&&ZEND_DEBUG
! 328: signal(SIGSEGV, original_sigsegv_handler);
! 329: #endif
! 330:
! 331: zend_hash_destroy(&EG(included_files));
! 332:
! 333: zend_ptr_stack_destroy(&EG(arg_types_stack));
! 334: zend_stack_destroy(&EG(user_error_handlers_error_reporting));
! 335: zend_ptr_stack_destroy(&EG(user_error_handlers));
! 336: zend_ptr_stack_destroy(&EG(user_exception_handlers));
! 337: zend_objects_store_destroy(&EG(objects_store));
! 338: if (EG(in_autoload)) {
! 339: zend_hash_destroy(EG(in_autoload));
! 340: FREE_HASHTABLE(EG(in_autoload));
! 341: }
! 342: } zend_end_try();
! 343:
! 344: zend_shutdown_fpu(TSRMLS_C);
! 345:
! 346: EG(active) = 0;
! 347: }
! 348: /* }}} */
! 349:
! 350: /* return class name and "::" or "". */
! 351: ZEND_API char *get_active_class_name(char **space TSRMLS_DC) /* {{{ */
! 352: {
! 353: if (!zend_is_executing(TSRMLS_C)) {
! 354: if (space) {
! 355: *space = "";
! 356: }
! 357: return "";
! 358: }
! 359: switch (EG(current_execute_data)->function_state.function->type) {
! 360: case ZEND_USER_FUNCTION:
! 361: case ZEND_INTERNAL_FUNCTION:
! 362: {
! 363: zend_class_entry *ce = EG(current_execute_data)->function_state.function->common.scope;
! 364:
! 365: if (space) {
! 366: *space = ce ? "::" : "";
! 367: }
! 368: return ce ? ce->name : "";
! 369: }
! 370: default:
! 371: if (space) {
! 372: *space = "";
! 373: }
! 374: return "";
! 375: }
! 376: }
! 377: /* }}} */
! 378:
! 379: ZEND_API char *get_active_function_name(TSRMLS_D) /* {{{ */
! 380: {
! 381: if (!zend_is_executing(TSRMLS_C)) {
! 382: return NULL;
! 383: }
! 384: switch (EG(current_execute_data)->function_state.function->type) {
! 385: case ZEND_USER_FUNCTION: {
! 386: char *function_name = ((zend_op_array *) EG(current_execute_data)->function_state.function)->function_name;
! 387:
! 388: if (function_name) {
! 389: return function_name;
! 390: } else {
! 391: return "main";
! 392: }
! 393: }
! 394: break;
! 395: case ZEND_INTERNAL_FUNCTION:
! 396: return ((zend_internal_function *) EG(current_execute_data)->function_state.function)->function_name;
! 397: break;
! 398: default:
! 399: return NULL;
! 400: }
! 401: }
! 402: /* }}} */
! 403:
! 404: ZEND_API char *zend_get_executed_filename(TSRMLS_D) /* {{{ */
! 405: {
! 406: if (EG(active_op_array)) {
! 407: return EG(active_op_array)->filename;
! 408: } else {
! 409: return "[no active file]";
! 410: }
! 411: }
! 412: /* }}} */
! 413:
! 414: ZEND_API uint zend_get_executed_lineno(TSRMLS_D) /* {{{ */
! 415: {
! 416: if(EG(exception) && EG(opline_ptr) && active_opline->opcode == ZEND_HANDLE_EXCEPTION &&
! 417: active_opline->lineno == 0 && EG(opline_before_exception)) {
! 418: return EG(opline_before_exception)->lineno;
! 419: }
! 420: if (EG(opline_ptr)) {
! 421: return active_opline->lineno;
! 422: } else {
! 423: return 0;
! 424: }
! 425: }
! 426: /* }}} */
! 427:
! 428: ZEND_API zend_bool zend_is_executing(TSRMLS_D) /* {{{ */
! 429: {
! 430: return EG(in_execution);
! 431: }
! 432: /* }}} */
! 433:
! 434: ZEND_API void _zval_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) /* {{{ */
! 435: {
! 436: zval *zv = *zval_ptr;
! 437:
! 438: #if DEBUG_ZEND>=2
! 439: printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);
! 440: #endif
! 441: Z_DELREF_P(zv);
! 442: if (Z_REFCOUNT_P(zv) == 0) {
! 443: TSRMLS_FETCH();
! 444:
! 445: if (zv != &EG(uninitialized_zval)) {
! 446: GC_REMOVE_ZVAL_FROM_BUFFER(zv);
! 447: zval_dtor(zv);
! 448: efree_rel(zv);
! 449: }
! 450: } else {
! 451: TSRMLS_FETCH();
! 452:
! 453: if (Z_REFCOUNT_P(zv) == 1) {
! 454: Z_UNSET_ISREF_P(zv);
! 455: }
! 456:
! 457: GC_ZVAL_CHECK_POSSIBLE_ROOT(zv);
! 458: }
! 459: }
! 460: /* }}} */
! 461:
! 462: ZEND_API void _zval_internal_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) /* {{{ */
! 463: {
! 464: #if DEBUG_ZEND>=2
! 465: printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);
! 466: #endif
! 467: Z_DELREF_PP(zval_ptr);
! 468: if (Z_REFCOUNT_PP(zval_ptr) == 0) {
! 469: zval_internal_dtor(*zval_ptr);
! 470: free(*zval_ptr);
! 471: } else if (Z_REFCOUNT_PP(zval_ptr) == 1) {
! 472: Z_UNSET_ISREF_PP(zval_ptr);
! 473: }
! 474: }
! 475: /* }}} */
! 476:
! 477: ZEND_API int zend_is_true(zval *op) /* {{{ */
! 478: {
! 479: return i_zend_is_true(op);
! 480: }
! 481: /* }}} */
! 482:
! 483: #include "../TSRM/tsrm_strtok_r.h"
! 484:
! 485: #define IS_VISITED_CONSTANT IS_CONSTANT_INDEX
! 486: #define IS_CONSTANT_VISITED(p) (Z_TYPE_P(p) & IS_VISITED_CONSTANT)
! 487: #define Z_REAL_TYPE_P(p) (Z_TYPE_P(p) & ~IS_VISITED_CONSTANT)
! 488: #define MARK_CONSTANT_VISITED(p) Z_TYPE_P(p) |= IS_VISITED_CONSTANT
! 489:
! 490: static void zval_deep_copy(zval **p)
! 491: {
! 492: zval *value;
! 493:
! 494: ALLOC_ZVAL(value);
! 495: *value = **p;
! 496: Z_TYPE_P(value) &= ~IS_CONSTANT_INDEX;
! 497: zval_copy_ctor(value);
! 498: Z_TYPE_P(value) = Z_TYPE_PP(p);
! 499: INIT_PZVAL(value);
! 500: *p = value;
! 501: }
! 502:
! 503: ZEND_API int zval_update_constant_ex(zval **pp, void *arg, zend_class_entry *scope TSRMLS_DC) /* {{{ */
! 504: {
! 505: zval *p = *pp;
! 506: zend_bool inline_change = (zend_bool) (zend_uintptr_t) arg;
! 507: zval const_value;
! 508: char *colon;
! 509:
! 510: if (IS_CONSTANT_VISITED(p)) {
! 511: zend_error(E_ERROR, "Cannot declare self-referencing constant '%s'", Z_STRVAL_P(p));
! 512: } else if ((Z_TYPE_P(p) & IS_CONSTANT_TYPE_MASK) == IS_CONSTANT) {
! 513: int refcount;
! 514: zend_uchar is_ref;
! 515:
! 516: SEPARATE_ZVAL_IF_NOT_REF(pp);
! 517: p = *pp;
! 518:
! 519: MARK_CONSTANT_VISITED(p);
! 520:
! 521: refcount = Z_REFCOUNT_P(p);
! 522: is_ref = Z_ISREF_P(p);
! 523:
! 524: if (!zend_get_constant_ex(p->value.str.val, p->value.str.len, &const_value, scope, Z_REAL_TYPE_P(p) TSRMLS_CC)) {
! 525: char *actual = Z_STRVAL_P(p);
! 526:
! 527: if ((colon = zend_memrchr(Z_STRVAL_P(p), ':', Z_STRLEN_P(p)))) {
! 528: zend_error(E_ERROR, "Undefined class constant '%s'", Z_STRVAL_P(p));
! 529: Z_STRLEN_P(p) -= ((colon - Z_STRVAL_P(p)) + 1);
! 530: if (inline_change) {
! 531: colon = estrndup(colon, Z_STRLEN_P(p));
! 532: efree(Z_STRVAL_P(p));
! 533: Z_STRVAL_P(p) = colon;
! 534: } else {
! 535: Z_STRVAL_P(p) = colon + 1;
! 536: }
! 537: } else {
! 538: char *save = actual, *slash;
! 539: int actual_len = Z_STRLEN_P(p);
! 540: if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) && (slash = (char *)zend_memrchr(actual, '\\', actual_len))) {
! 541: actual = slash + 1;
! 542: actual_len -= (actual - Z_STRVAL_P(p));
! 543: if (inline_change) {
! 544: actual = estrndup(actual, actual_len);
! 545: Z_STRVAL_P(p) = actual;
! 546: Z_STRLEN_P(p) = actual_len;
! 547: }
! 548: }
! 549: if (actual[0] == '\\') {
! 550: if (inline_change) {
! 551: memmove(Z_STRVAL_P(p), Z_STRVAL_P(p)+1, Z_STRLEN_P(p));
! 552: --Z_STRLEN_P(p);
! 553: } else {
! 554: ++actual;
! 555: }
! 556: --actual_len;
! 557: }
! 558: if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) == 0) {
! 559: int fix_save = 0;
! 560: if (save[0] == '\\') {
! 561: save++;
! 562: fix_save = 1;
! 563: }
! 564: zend_error(E_ERROR, "Undefined constant '%s'", save);
! 565: if (fix_save) {
! 566: save--;
! 567: }
! 568: if (inline_change) {
! 569: efree(save);
! 570: }
! 571: save = NULL;
! 572: }
! 573: if (inline_change && save && save != actual) {
! 574: efree(save);
! 575: }
! 576: zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", actual, actual);
! 577: p->type = IS_STRING;
! 578: if (!inline_change) {
! 579: Z_STRVAL_P(p) = actual;
! 580: Z_STRLEN_P(p) = actual_len;
! 581: zval_copy_ctor(p);
! 582: }
! 583: }
! 584: } else {
! 585: if (inline_change) {
! 586: STR_FREE(Z_STRVAL_P(p));
! 587: }
! 588: *p = const_value;
! 589: }
! 590:
! 591: Z_SET_REFCOUNT_P(p, refcount);
! 592: Z_SET_ISREF_TO_P(p, is_ref);
! 593: } else if (Z_TYPE_P(p) == IS_CONSTANT_ARRAY) {
! 594: zval **element, *new_val;
! 595: char *str_index;
! 596: uint str_index_len;
! 597: ulong num_index;
! 598: int ret;
! 599:
! 600: SEPARATE_ZVAL_IF_NOT_REF(pp);
! 601: p = *pp;
! 602: Z_TYPE_P(p) = IS_ARRAY;
! 603:
! 604: if (!inline_change) {
! 605: zval *tmp;
! 606: HashTable *tmp_ht = NULL;
! 607:
! 608: ALLOC_HASHTABLE(tmp_ht);
! 609: zend_hash_init(tmp_ht, zend_hash_num_elements(Z_ARRVAL_P(p)), NULL, ZVAL_PTR_DTOR, 0);
! 610: zend_hash_copy(tmp_ht, Z_ARRVAL_P(p), (copy_ctor_func_t) zval_deep_copy, (void *) &tmp, sizeof(zval *));
! 611: Z_ARRVAL_P(p) = tmp_ht;
! 612: }
! 613:
! 614: /* First go over the array and see if there are any constant indices */
! 615: zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));
! 616: while (zend_hash_get_current_data(Z_ARRVAL_P(p), (void **) &element) == SUCCESS) {
! 617: if (!(Z_TYPE_PP(element) & IS_CONSTANT_INDEX)) {
! 618: zend_hash_move_forward(Z_ARRVAL_P(p));
! 619: continue;
! 620: }
! 621: Z_TYPE_PP(element) &= ~IS_CONSTANT_INDEX;
! 622: if (zend_hash_get_current_key_ex(Z_ARRVAL_P(p), &str_index, &str_index_len, &num_index, 0, NULL) != HASH_KEY_IS_STRING) {
! 623: zend_hash_move_forward(Z_ARRVAL_P(p));
! 624: continue;
! 625: }
! 626: if (!zend_get_constant_ex(str_index, str_index_len - 3, &const_value, scope, str_index[str_index_len - 2] TSRMLS_CC)) {
! 627: char *actual, *save = str_index;
! 628: if ((colon = zend_memrchr(str_index, ':', str_index_len - 3))) {
! 629: zend_error(E_ERROR, "Undefined class constant '%s'", str_index);
! 630: str_index_len -= ((colon - str_index) + 1);
! 631: str_index = colon;
! 632: } else {
! 633: if (str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) {
! 634: if ((actual = (char *)zend_memrchr(str_index, '\\', str_index_len - 3))) {
! 635: actual++;
! 636: str_index_len -= (actual - str_index);
! 637: str_index = actual;
! 638: }
! 639: }
! 640: if (str_index[0] == '\\') {
! 641: ++str_index;
! 642: --str_index_len;
! 643: }
! 644: if (save[0] == '\\') {
! 645: ++save;
! 646: }
! 647: if ((str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) == 0) {
! 648: zend_error(E_ERROR, "Undefined constant '%s'", save);
! 649: }
! 650: zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", str_index, str_index);
! 651: }
! 652: ZVAL_STRINGL(&const_value, str_index, str_index_len-3, 1);
! 653: }
! 654:
! 655: if (Z_REFCOUNT_PP(element) > 1) {
! 656: ALLOC_ZVAL(new_val);
! 657: *new_val = **element;
! 658: zval_copy_ctor(new_val);
! 659: Z_SET_REFCOUNT_P(new_val, 1);
! 660: Z_UNSET_ISREF_P(new_val);
! 661:
! 662: /* preserve this bit for inheritance */
! 663: Z_TYPE_PP(element) |= IS_CONSTANT_INDEX;
! 664: zval_ptr_dtor(element);
! 665: *element = new_val;
! 666: }
! 667:
! 668: switch (Z_TYPE(const_value)) {
! 669: case IS_STRING:
! 670: ret = zend_symtable_update_current_key(Z_ARRVAL_P(p), Z_STRVAL(const_value), Z_STRLEN(const_value) + 1, HASH_UPDATE_KEY_IF_BEFORE);
! 671: break;
! 672: case IS_BOOL:
! 673: case IS_LONG:
! 674: 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);
! 675: break;
! 676: case IS_DOUBLE:
! 677: 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);
! 678: break;
! 679: case IS_NULL:
! 680: ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_STRING, "", 1, 0, HASH_UPDATE_KEY_IF_BEFORE, NULL);
! 681: break;
! 682: default:
! 683: ret = SUCCESS;
! 684: break;
! 685: }
! 686: if (ret == SUCCESS) {
! 687: zend_hash_move_forward(Z_ARRVAL_P(p));
! 688: }
! 689: zval_dtor(&const_value);
! 690: }
! 691: zend_hash_apply_with_argument(Z_ARRVAL_P(p), (apply_func_arg_t) zval_update_constant_inline_change, (void *) scope TSRMLS_CC);
! 692: zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));
! 693: }
! 694: return 0;
! 695: }
! 696: /* }}} */
! 697:
! 698: ZEND_API int zval_update_constant_inline_change(zval **pp, void *scope TSRMLS_DC) /* {{{ */
! 699: {
! 700: return zval_update_constant_ex(pp, (void*)1, scope TSRMLS_CC);
! 701: }
! 702: /* }}} */
! 703:
! 704: ZEND_API int zval_update_constant_no_inline_change(zval **pp, void *scope TSRMLS_DC) /* {{{ */
! 705: {
! 706: return zval_update_constant_ex(pp, (void*)0, scope TSRMLS_CC);
! 707: }
! 708: /* }}} */
! 709:
! 710: ZEND_API int zval_update_constant(zval **pp, void *arg TSRMLS_DC) /* {{{ */
! 711: {
! 712: return zval_update_constant_ex(pp, arg, NULL TSRMLS_CC);
! 713: }
! 714: /* }}} */
! 715:
! 716: int call_user_function(HashTable *function_table, zval **object_pp, zval *function_name, zval *retval_ptr, zend_uint param_count, zval *params[] TSRMLS_DC) /* {{{ */
! 717: {
! 718: zval ***params_array;
! 719: zend_uint i;
! 720: int ex_retval;
! 721: zval *local_retval_ptr = NULL;
! 722:
! 723: if (param_count) {
! 724: params_array = (zval ***) emalloc(sizeof(zval **)*param_count);
! 725: for (i=0; i<param_count; i++) {
! 726: params_array[i] = ¶ms[i];
! 727: }
! 728: } else {
! 729: params_array = NULL;
! 730: }
! 731: ex_retval = call_user_function_ex(function_table, object_pp, function_name, &local_retval_ptr, param_count, params_array, 1, NULL TSRMLS_CC);
! 732: if (local_retval_ptr) {
! 733: COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);
! 734: } else {
! 735: INIT_ZVAL(*retval_ptr);
! 736: }
! 737: if (params_array) {
! 738: efree(params_array);
! 739: }
! 740: return ex_retval;
! 741: }
! 742: /* }}} */
! 743:
! 744: 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) /* {{{ */
! 745: {
! 746: zend_fcall_info fci;
! 747:
! 748: fci.size = sizeof(fci);
! 749: fci.function_table = function_table;
! 750: fci.object_ptr = object_pp ? *object_pp : NULL;
! 751: fci.function_name = function_name;
! 752: fci.retval_ptr_ptr = retval_ptr_ptr;
! 753: fci.param_count = param_count;
! 754: fci.params = params;
! 755: fci.no_separation = (zend_bool) no_separation;
! 756: fci.symbol_table = symbol_table;
! 757:
! 758: return zend_call_function(&fci, NULL TSRMLS_CC);
! 759: }
! 760: /* }}} */
! 761:
! 762: int zend_call_function(zend_fcall_info *fci, zend_fcall_info_cache *fci_cache TSRMLS_DC) /* {{{ */
! 763: {
! 764: zend_uint i;
! 765: zval **original_return_value;
! 766: HashTable *calling_symbol_table;
! 767: zend_op_array *original_op_array;
! 768: zend_op **original_opline_ptr;
! 769: zend_class_entry *current_scope;
! 770: zend_class_entry *current_called_scope;
! 771: zend_class_entry *calling_scope = NULL;
! 772: zend_class_entry *called_scope = NULL;
! 773: zval *current_this;
! 774: zend_execute_data execute_data;
! 775:
! 776: *fci->retval_ptr_ptr = NULL;
! 777:
! 778: if (!EG(active)) {
! 779: return FAILURE; /* executor is already inactive */
! 780: }
! 781:
! 782: if (EG(exception)) {
! 783: return FAILURE; /* we would result in an instable executor otherwise */
! 784: }
! 785:
! 786: switch (fci->size) {
! 787: case sizeof(zend_fcall_info):
! 788: break; /* nothing to do currently */
! 789: default:
! 790: zend_error(E_ERROR, "Corrupted fcall_info provided to zend_call_function()");
! 791: break;
! 792: }
! 793:
! 794: /* Initialize execute_data */
! 795: if (EG(current_execute_data)) {
! 796: execute_data = *EG(current_execute_data);
! 797: EX(op_array) = NULL;
! 798: EX(opline) = NULL;
! 799: EX(object) = NULL;
! 800: } else {
! 801: /* This only happens when we're called outside any execute()'s
! 802: * It shouldn't be strictly necessary to NULL execute_data out,
! 803: * but it may make bugs easier to spot
! 804: */
! 805: memset(&execute_data, 0, sizeof(zend_execute_data));
! 806: }
! 807:
! 808: if (!fci_cache || !fci_cache->initialized) {
! 809: zend_fcall_info_cache fci_cache_local;
! 810: char *callable_name;
! 811: char *error = NULL;
! 812:
! 813: if (!fci_cache) {
! 814: fci_cache = &fci_cache_local;
! 815: }
! 816:
! 817: if (!zend_is_callable_ex(fci->function_name, fci->object_ptr, IS_CALLABLE_CHECK_SILENT, &callable_name, NULL, fci_cache, &error TSRMLS_CC)) {
! 818: if (error) {
! 819: zend_error(E_WARNING, "Invalid callback %s, %s", callable_name, error);
! 820: efree(error);
! 821: }
! 822: if (callable_name) {
! 823: efree(callable_name);
! 824: }
! 825: return FAILURE;
! 826: } else if (error) {
! 827: /* Capitalize the first latter of the error message */
! 828: if (error[0] >= 'a' && error[0] <= 'z') {
! 829: error[0] += ('A' - 'a');
! 830: }
! 831: zend_error(E_STRICT, "%s", error);
! 832: efree(error);
! 833: }
! 834: efree(callable_name);
! 835: }
! 836:
! 837: EX(function_state).function = fci_cache->function_handler;
! 838: calling_scope = fci_cache->calling_scope;
! 839: called_scope = fci_cache->called_scope;
! 840: fci->object_ptr = fci_cache->object_ptr;
! 841: EX(object) = fci->object_ptr;
! 842: if (fci->object_ptr && Z_TYPE_P(fci->object_ptr) == IS_OBJECT &&
! 843: (!EG(objects_store).object_buckets || !EG(objects_store).object_buckets[Z_OBJ_HANDLE_P(fci->object_ptr)].valid)) {
! 844: return FAILURE;
! 845: }
! 846:
! 847: if (EX(function_state).function->common.fn_flags & (ZEND_ACC_ABSTRACT|ZEND_ACC_DEPRECATED)) {
! 848: if (EX(function_state).function->common.fn_flags & ZEND_ACC_ABSTRACT) {
! 849: 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);
! 850: }
! 851: if (EX(function_state).function->common.fn_flags & ZEND_ACC_DEPRECATED) {
! 852: zend_error(E_DEPRECATED, "Function %s%s%s() is deprecated",
! 853: EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",
! 854: EX(function_state).function->common.scope ? "::" : "",
! 855: EX(function_state).function->common.function_name);
! 856: }
! 857: }
! 858:
! 859: ZEND_VM_STACK_GROW_IF_NEEDED(fci->param_count + 1);
! 860:
! 861: for (i=0; i<fci->param_count; i++) {
! 862: zval *param;
! 863:
! 864: if (EX(function_state).function->type == ZEND_INTERNAL_FUNCTION
! 865: && (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) == 0
! 866: && !ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i + 1)
! 867: && PZVAL_IS_REF(*fci->params[i])) {
! 868: ALLOC_ZVAL(param);
! 869: *param = **(fci->params[i]);
! 870: INIT_PZVAL(param);
! 871: zval_copy_ctor(param);
! 872: } else if (ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i + 1)
! 873: && !PZVAL_IS_REF(*fci->params[i])) {
! 874:
! 875: if (Z_REFCOUNT_PP(fci->params[i]) > 1) {
! 876: zval *new_zval;
! 877:
! 878: if (fci->no_separation &&
! 879: !ARG_MAY_BE_SENT_BY_REF(EX(function_state).function, i + 1)) {
! 880: if(i) {
! 881: /* hack to clean up the stack */
! 882: zend_vm_stack_push_nocheck((void *) (zend_uintptr_t)i TSRMLS_CC);
! 883: zend_vm_stack_clear_multiple(TSRMLS_C);
! 884: }
! 885:
! 886: zend_error(E_WARNING, "Parameter %d to %s%s%s() expected to be a reference, value given",
! 887: i+1,
! 888: EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",
! 889: EX(function_state).function->common.scope ? "::" : "",
! 890: EX(function_state).function->common.function_name);
! 891: return FAILURE;
! 892: }
! 893:
! 894: ALLOC_ZVAL(new_zval);
! 895: *new_zval = **fci->params[i];
! 896: zval_copy_ctor(new_zval);
! 897: Z_SET_REFCOUNT_P(new_zval, 1);
! 898: Z_DELREF_PP(fci->params[i]);
! 899: *fci->params[i] = new_zval;
! 900: }
! 901: Z_ADDREF_PP(fci->params[i]);
! 902: Z_SET_ISREF_PP(fci->params[i]);
! 903: param = *fci->params[i];
! 904: } else if (*fci->params[i] != &EG(uninitialized_zval)) {
! 905: Z_ADDREF_PP(fci->params[i]);
! 906: param = *fci->params[i];
! 907: } else {
! 908: ALLOC_ZVAL(param);
! 909: *param = **(fci->params[i]);
! 910: INIT_PZVAL(param);
! 911: }
! 912: zend_vm_stack_push_nocheck(param TSRMLS_CC);
! 913: }
! 914:
! 915: EX(function_state).arguments = zend_vm_stack_top(TSRMLS_C);
! 916: zend_vm_stack_push_nocheck((void*)(zend_uintptr_t)fci->param_count TSRMLS_CC);
! 917:
! 918: current_scope = EG(scope);
! 919: EG(scope) = calling_scope;
! 920:
! 921: current_this = EG(This);
! 922:
! 923: current_called_scope = EG(called_scope);
! 924: if (called_scope) {
! 925: EG(called_scope) = called_scope;
! 926: } else if (EX(function_state).function->type != ZEND_INTERNAL_FUNCTION) {
! 927: EG(called_scope) = NULL;
! 928: }
! 929:
! 930: if (fci->object_ptr) {
! 931: if ((EX(function_state).function->common.fn_flags & ZEND_ACC_STATIC)) {
! 932: EG(This) = NULL;
! 933: } else {
! 934: EG(This) = fci->object_ptr;
! 935:
! 936: if (!PZVAL_IS_REF(EG(This))) {
! 937: Z_ADDREF_P(EG(This)); /* For $this pointer */
! 938: } else {
! 939: zval *this_ptr;
! 940:
! 941: ALLOC_ZVAL(this_ptr);
! 942: *this_ptr = *EG(This);
! 943: INIT_PZVAL(this_ptr);
! 944: zval_copy_ctor(this_ptr);
! 945: EG(This) = this_ptr;
! 946: }
! 947: }
! 948: } else {
! 949: EG(This) = NULL;
! 950: }
! 951:
! 952: EX(prev_execute_data) = EG(current_execute_data);
! 953: EG(current_execute_data) = &execute_data;
! 954:
! 955: if (EX(function_state).function->type == ZEND_USER_FUNCTION) {
! 956: calling_symbol_table = EG(active_symbol_table);
! 957: EG(scope) = EX(function_state).function->common.scope;
! 958: if (fci->symbol_table) {
! 959: EG(active_symbol_table) = fci->symbol_table;
! 960: } else {
! 961: EG(active_symbol_table) = NULL;
! 962: }
! 963:
! 964: original_return_value = EG(return_value_ptr_ptr);
! 965: original_op_array = EG(active_op_array);
! 966: EG(return_value_ptr_ptr) = fci->retval_ptr_ptr;
! 967: EG(active_op_array) = (zend_op_array *) EX(function_state).function;
! 968: original_opline_ptr = EG(opline_ptr);
! 969: zend_execute(EG(active_op_array) TSRMLS_CC);
! 970: if (!fci->symbol_table && EG(active_symbol_table)) {
! 971: if (EG(symtable_cache_ptr)>=EG(symtable_cache_limit)) {
! 972: zend_hash_destroy(EG(active_symbol_table));
! 973: FREE_HASHTABLE(EG(active_symbol_table));
! 974: } else {
! 975: /* clean before putting into the cache, since clean
! 976: could call dtors, which could use cached hash */
! 977: zend_hash_clean(EG(active_symbol_table));
! 978: *(++EG(symtable_cache_ptr)) = EG(active_symbol_table);
! 979: }
! 980: }
! 981: EG(active_symbol_table) = calling_symbol_table;
! 982: EG(active_op_array) = original_op_array;
! 983: EG(return_value_ptr_ptr)=original_return_value;
! 984: EG(opline_ptr) = original_opline_ptr;
! 985: } else if (EX(function_state).function->type == ZEND_INTERNAL_FUNCTION) {
! 986: int call_via_handler = (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) != 0;
! 987: ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);
! 988: if (EX(function_state).function->common.scope) {
! 989: EG(scope) = EX(function_state).function->common.scope;
! 990: }
! 991: ((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);
! 992: /* We shouldn't fix bad extensions here,
! 993: because it can break proper ones (Bug #34045)
! 994: if (!EX(function_state).function->common.return_reference)
! 995: {
! 996: INIT_PZVAL(*fci->retval_ptr_ptr);
! 997: }*/
! 998: if (EG(exception) && fci->retval_ptr_ptr) {
! 999: zval_ptr_dtor(fci->retval_ptr_ptr);
! 1000: *fci->retval_ptr_ptr = NULL;
! 1001: }
! 1002:
! 1003: if (call_via_handler) {
! 1004: /* We must re-initialize function again */
! 1005: fci_cache->initialized = 0;
! 1006: }
! 1007: } else { /* ZEND_OVERLOADED_FUNCTION */
! 1008: ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);
! 1009:
! 1010: /* Not sure what should be done here if it's a static method */
! 1011: if (fci->object_ptr) {
! 1012: 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);
! 1013: } else {
! 1014: zend_error_noreturn(E_ERROR, "Cannot call overloaded function for non-object");
! 1015: }
! 1016:
! 1017: if (EX(function_state).function->type == ZEND_OVERLOADED_FUNCTION_TEMPORARY) {
! 1018: efree(EX(function_state).function->common.function_name);
! 1019: }
! 1020: efree(EX(function_state).function);
! 1021:
! 1022: if (EG(exception) && fci->retval_ptr_ptr) {
! 1023: zval_ptr_dtor(fci->retval_ptr_ptr);
! 1024: *fci->retval_ptr_ptr = NULL;
! 1025: }
! 1026: }
! 1027: zend_vm_stack_clear_multiple(TSRMLS_C);
! 1028:
! 1029: if (EG(This)) {
! 1030: zval_ptr_dtor(&EG(This));
! 1031: }
! 1032: EG(called_scope) = current_called_scope;
! 1033: EG(scope) = current_scope;
! 1034: EG(This) = current_this;
! 1035: EG(current_execute_data) = EX(prev_execute_data);
! 1036:
! 1037: if (EG(exception)) {
! 1038: zend_throw_exception_internal(NULL TSRMLS_CC);
! 1039: }
! 1040: return SUCCESS;
! 1041: }
! 1042: /* }}} */
! 1043:
! 1044: ZEND_API int zend_lookup_class_ex(const char *name, int name_length, int use_autoload, zend_class_entry ***ce TSRMLS_DC) /* {{{ */
! 1045: {
! 1046: zval **args[1];
! 1047: zval autoload_function;
! 1048: zval *class_name_ptr;
! 1049: zval *retval_ptr = NULL;
! 1050: int retval, lc_length;
! 1051: char *lc_name;
! 1052: char *lc_free;
! 1053: zend_fcall_info fcall_info;
! 1054: zend_fcall_info_cache fcall_cache;
! 1055: char dummy = 1;
! 1056: ulong hash;
! 1057: ALLOCA_FLAG(use_heap)
! 1058:
! 1059: if (name == NULL || !name_length) {
! 1060: return FAILURE;
! 1061: }
! 1062:
! 1063: lc_free = lc_name = do_alloca(name_length + 1, use_heap);
! 1064: zend_str_tolower_copy(lc_name, name, name_length);
! 1065: lc_length = name_length + 1;
! 1066:
! 1067: if (lc_name[0] == '\\') {
! 1068: lc_name += 1;
! 1069: lc_length -= 1;
! 1070: }
! 1071:
! 1072: hash = zend_inline_hash_func(lc_name, lc_length);
! 1073:
! 1074: if (zend_hash_quick_find(EG(class_table), lc_name, lc_length, hash, (void **) ce) == SUCCESS) {
! 1075: free_alloca(lc_free, use_heap);
! 1076: return SUCCESS;
! 1077: }
! 1078:
! 1079: /* The compiler is not-reentrant. Make sure we __autoload() only during run-time
! 1080: * (doesn't impact fuctionality of __autoload()
! 1081: */
! 1082: if (!use_autoload || zend_is_compiling(TSRMLS_C)) {
! 1083: free_alloca(lc_free, use_heap);
! 1084: return FAILURE;
! 1085: }
! 1086:
! 1087: if (EG(in_autoload) == NULL) {
! 1088: ALLOC_HASHTABLE(EG(in_autoload));
! 1089: zend_hash_init(EG(in_autoload), 0, NULL, NULL, 0);
! 1090: }
! 1091:
! 1092: if (zend_hash_quick_add(EG(in_autoload), lc_name, lc_length, hash, (void**)&dummy, sizeof(char), NULL) == FAILURE) {
! 1093: free_alloca(lc_free, use_heap);
! 1094: return FAILURE;
! 1095: }
! 1096:
! 1097: ZVAL_STRINGL(&autoload_function, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME) - 1, 0);
! 1098:
! 1099: ALLOC_ZVAL(class_name_ptr);
! 1100: INIT_PZVAL(class_name_ptr);
! 1101: if (name[0] == '\\') {
! 1102: ZVAL_STRINGL(class_name_ptr, name+1, name_length-1, 1);
! 1103: } else {
! 1104: ZVAL_STRINGL(class_name_ptr, name, name_length, 1);
! 1105: }
! 1106:
! 1107: args[0] = &class_name_ptr;
! 1108:
! 1109: fcall_info.size = sizeof(fcall_info);
! 1110: fcall_info.function_table = EG(function_table);
! 1111: fcall_info.function_name = &autoload_function;
! 1112: fcall_info.symbol_table = NULL;
! 1113: fcall_info.retval_ptr_ptr = &retval_ptr;
! 1114: fcall_info.param_count = 1;
! 1115: fcall_info.params = args;
! 1116: fcall_info.object_ptr = NULL;
! 1117: fcall_info.no_separation = 1;
! 1118:
! 1119: fcall_cache.initialized = EG(autoload_func) ? 1 : 0;
! 1120: fcall_cache.function_handler = EG(autoload_func);
! 1121: fcall_cache.calling_scope = NULL;
! 1122: fcall_cache.called_scope = NULL;
! 1123: fcall_cache.object_ptr = NULL;
! 1124:
! 1125: zend_exception_save(TSRMLS_C);
! 1126: retval = zend_call_function(&fcall_info, &fcall_cache TSRMLS_CC);
! 1127: zend_exception_restore(TSRMLS_C);
! 1128:
! 1129: EG(autoload_func) = fcall_cache.function_handler;
! 1130:
! 1131: zval_ptr_dtor(&class_name_ptr);
! 1132:
! 1133: zend_hash_quick_del(EG(in_autoload), lc_name, lc_length, hash);
! 1134:
! 1135: if (retval_ptr) {
! 1136: zval_ptr_dtor(&retval_ptr);
! 1137: }
! 1138:
! 1139: if (retval == FAILURE) {
! 1140: free_alloca(lc_free, use_heap);
! 1141: return FAILURE;
! 1142: }
! 1143:
! 1144: retval = zend_hash_quick_find(EG(class_table), lc_name, lc_length, hash, (void **) ce);
! 1145: free_alloca(lc_free, use_heap);
! 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, 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_execute(new_op_array TSRMLS_CC);
! 1199:
! 1200: CG(interactive) = orig_interactive;
! 1201: if (local_retval_ptr) {
! 1202: if (retval_ptr) {
! 1203: COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);
! 1204: } else {
! 1205: zval_ptr_dtor(&local_retval_ptr);
! 1206: }
! 1207: } else {
! 1208: if (retval_ptr) {
! 1209: INIT_ZVAL(*retval_ptr);
! 1210: }
! 1211: }
! 1212:
! 1213: EG(no_extensions)=0;
! 1214: EG(opline_ptr) = original_opline_ptr;
! 1215: EG(active_op_array) = original_active_op_array;
! 1216: destroy_op_array(new_op_array TSRMLS_CC);
! 1217: efree(new_op_array);
! 1218: EG(return_value_ptr_ptr) = original_return_value_ptr_ptr;
! 1219: retval = SUCCESS;
! 1220: } else {
! 1221: retval = FAILURE;
! 1222: }
! 1223: if (retval_ptr) {
! 1224: zval_dtor(&pv);
! 1225: }
! 1226: return retval;
! 1227: }
! 1228: /* }}} */
! 1229:
! 1230: ZEND_API int zend_eval_string(char *str, zval *retval_ptr, char *string_name TSRMLS_DC) /* {{{ */
! 1231: {
! 1232: return zend_eval_stringl(str, strlen(str), retval_ptr, string_name TSRMLS_CC);
! 1233: }
! 1234: /* }}} */
! 1235:
! 1236: ZEND_API int zend_eval_stringl_ex(char *str, int str_len, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC) /* {{{ */
! 1237: {
! 1238: int result;
! 1239:
! 1240: result = zend_eval_stringl(str, str_len, retval_ptr, string_name TSRMLS_CC);
! 1241: if (handle_exceptions && EG(exception)) {
! 1242: zend_exception_error(EG(exception), E_ERROR TSRMLS_CC);
! 1243: result = FAILURE;
! 1244: }
! 1245: return result;
! 1246: }
! 1247: /* }}} */
! 1248:
! 1249: ZEND_API int zend_eval_string_ex(char *str, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC) /* {{{ */
! 1250: {
! 1251: return zend_eval_stringl_ex(str, strlen(str), retval_ptr, string_name, handle_exceptions TSRMLS_CC);
! 1252: }
! 1253: /* }}} */
! 1254:
! 1255: void execute_new_code(TSRMLS_D) /* {{{ */
! 1256: {
! 1257: zend_op *opline, *end;
! 1258: zend_op *ret_opline;
! 1259: int orig_interactive;
! 1260:
! 1261: if (!(CG(active_op_array)->fn_flags & ZEND_ACC_INTERACTIVE)
! 1262: || CG(active_op_array)->backpatch_count>0
! 1263: || CG(active_op_array)->function_name
! 1264: || CG(active_op_array)->type!=ZEND_USER_FUNCTION) {
! 1265: return;
! 1266: }
! 1267:
! 1268: ret_opline = get_next_op(CG(active_op_array) TSRMLS_CC);
! 1269: ret_opline->opcode = ZEND_RETURN;
! 1270: ret_opline->op1.op_type = IS_CONST;
! 1271: INIT_ZVAL(ret_opline->op1.u.constant);
! 1272: SET_UNUSED(ret_opline->op2);
! 1273:
! 1274: if (!CG(active_op_array)->start_op) {
! 1275: CG(active_op_array)->start_op = CG(active_op_array)->opcodes;
! 1276: }
! 1277:
! 1278: opline=CG(active_op_array)->start_op;
! 1279: end=CG(active_op_array)->opcodes+CG(active_op_array)->last;
! 1280:
! 1281: while (opline<end) {
! 1282: if (opline->op1.op_type == IS_CONST) {
! 1283: Z_SET_ISREF(opline->op1.u.constant);
! 1284: Z_SET_REFCOUNT(opline->op1.u.constant, 2); /* Make sure is_ref won't be reset */
! 1285: }
! 1286: if (opline->op2.op_type == IS_CONST) {
! 1287: Z_SET_ISREF(opline->op2.u.constant);
! 1288: Z_SET_REFCOUNT(opline->op2.u.constant, 2);
! 1289: }
! 1290: switch (opline->opcode) {
! 1291: case ZEND_GOTO:
! 1292: if (Z_TYPE(opline->op2.u.constant) != IS_LONG) {
! 1293: zend_resolve_goto_label(CG(active_op_array), opline, 1 TSRMLS_CC);
! 1294: }
! 1295: /* break omitted intentionally */
! 1296: case ZEND_JMP:
! 1297: opline->op1.u.jmp_addr = &CG(active_op_array)->opcodes[opline->op1.u.opline_num];
! 1298: break;
! 1299: case ZEND_JMPZ:
! 1300: case ZEND_JMPNZ:
! 1301: case ZEND_JMPZ_EX:
! 1302: case ZEND_JMPNZ_EX:
! 1303: case ZEND_JMP_SET:
! 1304: opline->op2.u.jmp_addr = &CG(active_op_array)->opcodes[opline->op2.u.opline_num];
! 1305: break;
! 1306: }
! 1307: ZEND_VM_SET_OPCODE_HANDLER(opline);
! 1308: opline++;
! 1309: }
! 1310:
! 1311: zend_release_labels(TSRMLS_C);
! 1312:
! 1313: EG(return_value_ptr_ptr) = NULL;
! 1314: EG(active_op_array) = CG(active_op_array);
! 1315: orig_interactive = CG(interactive);
! 1316: CG(interactive) = 0;
! 1317: zend_execute(CG(active_op_array) TSRMLS_CC);
! 1318: CG(interactive) = orig_interactive;
! 1319:
! 1320: if (EG(exception)) {
! 1321: zend_exception_error(EG(exception), E_ERROR TSRMLS_CC);
! 1322: }
! 1323:
! 1324: CG(active_op_array)->last -= 1; /* get rid of that ZEND_RETURN */
! 1325: CG(active_op_array)->start_op = CG(active_op_array)->opcodes+CG(active_op_array)->last;
! 1326: }
! 1327: /* }}} */
! 1328:
! 1329: ZEND_API void zend_timeout(int dummy) /* {{{ */
! 1330: {
! 1331: TSRMLS_FETCH();
! 1332:
! 1333: if (zend_on_timeout) {
! 1334: zend_on_timeout(EG(timeout_seconds) TSRMLS_CC);
! 1335: }
! 1336:
! 1337: zend_error(E_ERROR, "Maximum execution time of %d second%s exceeded", EG(timeout_seconds), EG(timeout_seconds) == 1 ? "" : "s");
! 1338: }
! 1339: /* }}} */
! 1340:
! 1341: #ifdef ZEND_WIN32
! 1342: static LRESULT CALLBACK zend_timeout_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) /* {{{ */
! 1343: {
! 1344: switch (message) {
! 1345: case WM_DESTROY:
! 1346: PostQuitMessage(0);
! 1347: break;
! 1348: case WM_REGISTER_ZEND_TIMEOUT:
! 1349: /* wParam is the thread id pointer, lParam is the timeout amount in seconds */
! 1350: if (lParam == 0) {
! 1351: KillTimer(timeout_window, wParam);
! 1352: } else {
! 1353: #ifdef ZTS
! 1354: void ***tsrm_ls;
! 1355: #endif
! 1356: SetTimer(timeout_window, wParam, lParam*1000, NULL);
! 1357: #ifdef ZTS
! 1358: tsrm_ls = ts_resource_ex(0, &wParam);
! 1359: if (!tsrm_ls) {
! 1360: /* shouldn't normally happen */
! 1361: break;
! 1362: }
! 1363: #endif
! 1364: EG(timed_out) = 0;
! 1365: }
! 1366: break;
! 1367: case WM_UNREGISTER_ZEND_TIMEOUT:
! 1368: /* wParam is the thread id pointer */
! 1369: KillTimer(timeout_window, wParam);
! 1370: break;
! 1371: case WM_TIMER: {
! 1372: #ifdef ZTS
! 1373: void ***tsrm_ls;
! 1374:
! 1375: tsrm_ls = ts_resource_ex(0, &wParam);
! 1376: if (!tsrm_ls) {
! 1377: /* Thread died before receiving its timeout? */
! 1378: break;
! 1379: }
! 1380: #endif
! 1381: KillTimer(timeout_window, wParam);
! 1382: EG(timed_out) = 1;
! 1383: }
! 1384: break;
! 1385: default:
! 1386: return DefWindowProc(hWnd, message, wParam, lParam);
! 1387: }
! 1388: return 0;
! 1389: }
! 1390: /* }}} */
! 1391:
! 1392: static unsigned __stdcall timeout_thread_proc(void *pArgs) /* {{{ */
! 1393: {
! 1394: MSG message;
! 1395:
! 1396: wc.style=0;
! 1397: wc.lpfnWndProc = zend_timeout_WndProc;
! 1398: wc.cbClsExtra=0;
! 1399: wc.cbWndExtra=0;
! 1400: wc.hInstance=NULL;
! 1401: wc.hIcon=NULL;
! 1402: wc.hCursor=NULL;
! 1403: wc.hbrBackground=(HBRUSH)(COLOR_BACKGROUND + 5);
! 1404: wc.lpszMenuName=NULL;
! 1405: wc.lpszClassName = "Zend Timeout Window";
! 1406: if (!RegisterClass(&wc)) {
! 1407: return -1;
! 1408: }
! 1409: timeout_window = CreateWindow(wc.lpszClassName, wc.lpszClassName, 0, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, NULL, NULL);
! 1410: SetEvent(timeout_thread_event);
! 1411: while (GetMessage(&message, NULL, 0, 0)) {
! 1412: SendMessage(timeout_window, message.message, message.wParam, message.lParam);
! 1413: if (message.message == WM_QUIT) {
! 1414: break;
! 1415: }
! 1416: }
! 1417: DestroyWindow(timeout_window);
! 1418: UnregisterClass(wc.lpszClassName, NULL);
! 1419: SetEvent(timeout_thread_handle);
! 1420: return 0;
! 1421: }
! 1422: /* }}} */
! 1423:
! 1424: void zend_init_timeout_thread(void) /* {{{ */
! 1425: {
! 1426: timeout_thread_event = CreateEvent(NULL, FALSE, FALSE, NULL);
! 1427: timeout_thread_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
! 1428: _beginthreadex(NULL, 0, timeout_thread_proc, NULL, 0, &timeout_thread_id);
! 1429: WaitForSingleObject(timeout_thread_event, INFINITE);
! 1430: }
! 1431: /* }}} */
! 1432:
! 1433: void zend_shutdown_timeout_thread(void) /* {{{ */
! 1434: {
! 1435: if (!timeout_thread_initialized) {
! 1436: return;
! 1437: }
! 1438: PostThreadMessage(timeout_thread_id, WM_QUIT, 0, 0);
! 1439:
! 1440: /* Wait for thread termination */
! 1441: WaitForSingleObject(timeout_thread_handle, 5000);
! 1442: CloseHandle(timeout_thread_handle);
! 1443: timeout_thread_initialized = 0;
! 1444: }
! 1445: /* }}} */
! 1446:
! 1447: #endif
! 1448:
! 1449: /* This one doesn't exists on QNX */
! 1450: #ifndef SIGPROF
! 1451: #define SIGPROF 27
! 1452: #endif
! 1453:
! 1454: void zend_set_timeout(long seconds, int reset_signals) /* {{{ */
! 1455: {
! 1456: TSRMLS_FETCH();
! 1457:
! 1458: EG(timeout_seconds) = seconds;
! 1459:
! 1460: #ifdef ZEND_WIN32
! 1461: if(!seconds) {
! 1462: return;
! 1463: }
! 1464: if (timeout_thread_initialized == 0 && InterlockedIncrement(&timeout_thread_initialized) == 1) {
! 1465: /* We start up this process-wide thread here and not in zend_startup(), because if Zend
! 1466: * is initialized inside a DllMain(), you're not supposed to start threads from it.
! 1467: */
! 1468: zend_init_timeout_thread();
! 1469: }
! 1470: PostThreadMessage(timeout_thread_id, WM_REGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) seconds);
! 1471: #else
! 1472: # ifdef HAVE_SETITIMER
! 1473: {
! 1474: struct itimerval t_r; /* timeout requested */
! 1475: sigset_t sigset;
! 1476:
! 1477: if(seconds) {
! 1478: t_r.it_value.tv_sec = seconds;
! 1479: t_r.it_value.tv_usec = t_r.it_interval.tv_sec = t_r.it_interval.tv_usec = 0;
! 1480:
! 1481: # ifdef __CYGWIN__
! 1482: setitimer(ITIMER_REAL, &t_r, NULL);
! 1483: }
! 1484: if(reset_signals) {
! 1485: signal(SIGALRM, zend_timeout);
! 1486: sigemptyset(&sigset);
! 1487: sigaddset(&sigset, SIGALRM);
! 1488: }
! 1489: # else
! 1490: setitimer(ITIMER_PROF, &t_r, NULL);
! 1491: }
! 1492: if(reset_signals) {
! 1493: signal(SIGPROF, zend_timeout);
! 1494: sigemptyset(&sigset);
! 1495: sigaddset(&sigset, SIGPROF);
! 1496: }
! 1497: # endif
! 1498: if(reset_signals) {
! 1499: sigprocmask(SIG_UNBLOCK, &sigset, NULL);
! 1500: }
! 1501: }
! 1502: # endif
! 1503: #endif
! 1504: }
! 1505: /* }}} */
! 1506:
! 1507: void zend_unset_timeout(TSRMLS_D) /* {{{ */
! 1508: {
! 1509: #ifdef ZEND_WIN32
! 1510: if(timeout_thread_initialized) {
! 1511: PostThreadMessage(timeout_thread_id, WM_UNREGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) 0);
! 1512: }
! 1513: #else
! 1514: # ifdef HAVE_SETITIMER
! 1515: if (EG(timeout_seconds)) {
! 1516: struct itimerval no_timeout;
! 1517:
! 1518: 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;
! 1519:
! 1520: #ifdef __CYGWIN__
! 1521: setitimer(ITIMER_REAL, &no_timeout, NULL);
! 1522: #else
! 1523: setitimer(ITIMER_PROF, &no_timeout, NULL);
! 1524: #endif
! 1525: }
! 1526: # endif
! 1527: #endif
! 1528: }
! 1529: /* }}} */
! 1530:
! 1531: zend_class_entry *zend_fetch_class(const char *class_name, uint class_name_len, int fetch_type TSRMLS_DC) /* {{{ */
! 1532: {
! 1533: zend_class_entry **pce;
! 1534: int use_autoload = (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) == 0;
! 1535: int silent = (fetch_type & ZEND_FETCH_CLASS_SILENT) != 0;
! 1536:
! 1537: fetch_type &= ZEND_FETCH_CLASS_MASK;
! 1538:
! 1539: check_fetch_type:
! 1540: switch (fetch_type) {
! 1541: case ZEND_FETCH_CLASS_SELF:
! 1542: if (!EG(scope)) {
! 1543: zend_error(E_ERROR, "Cannot access self:: when no class scope is active");
! 1544: }
! 1545: return EG(scope);
! 1546: case ZEND_FETCH_CLASS_PARENT:
! 1547: if (!EG(scope)) {
! 1548: zend_error(E_ERROR, "Cannot access parent:: when no class scope is active");
! 1549: }
! 1550: if (!EG(scope)->parent) {
! 1551: zend_error(E_ERROR, "Cannot access parent:: when current class scope has no parent");
! 1552: }
! 1553: return EG(scope)->parent;
! 1554: case ZEND_FETCH_CLASS_STATIC:
! 1555: if (!EG(called_scope)) {
! 1556: zend_error(E_ERROR, "Cannot access static:: when no class scope is active");
! 1557: }
! 1558: return EG(called_scope);
! 1559: case ZEND_FETCH_CLASS_AUTO: {
! 1560: fetch_type = zend_get_class_fetch_type(class_name, class_name_len);
! 1561: if (fetch_type!=ZEND_FETCH_CLASS_DEFAULT) {
! 1562: goto check_fetch_type;
! 1563: }
! 1564: }
! 1565: break;
! 1566: }
! 1567:
! 1568: if (zend_lookup_class_ex(class_name, class_name_len, use_autoload, &pce TSRMLS_CC) == FAILURE) {
! 1569: if (use_autoload) {
! 1570: if (!silent && !EG(exception)) {
! 1571: if (fetch_type == ZEND_FETCH_CLASS_INTERFACE) {
! 1572: zend_error(E_ERROR, "Interface '%s' not found", class_name);
! 1573: } else {
! 1574: zend_error(E_ERROR, "Class '%s' not found", class_name);
! 1575: }
! 1576: }
! 1577: }
! 1578: return NULL;
! 1579: }
! 1580: return *pce;
! 1581: }
! 1582: /* }}} */
! 1583:
! 1584: #define MAX_ABSTRACT_INFO_CNT 3
! 1585: #define MAX_ABSTRACT_INFO_FMT "%s%s%s%s"
! 1586: #define DISPLAY_ABSTRACT_FN(idx) \
! 1587: ai.afn[idx] ? ZEND_FN_SCOPE_NAME(ai.afn[idx]) : "", \
! 1588: ai.afn[idx] ? "::" : "", \
! 1589: ai.afn[idx] ? ai.afn[idx]->common.function_name : "", \
! 1590: ai.afn[idx] && ai.afn[idx + 1] ? ", " : (ai.afn[idx] && ai.cnt > MAX_ABSTRACT_INFO_CNT ? ", ..." : "")
! 1591:
! 1592: typedef struct _zend_abstract_info {
! 1593: zend_function *afn[MAX_ABSTRACT_INFO_CNT + 1];
! 1594: int cnt;
! 1595: int ctor;
! 1596: } zend_abstract_info;
! 1597:
! 1598: static int zend_verify_abstract_class_function(zend_function *fn, zend_abstract_info *ai TSRMLS_DC) /* {{{ */
! 1599: {
! 1600: if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
! 1601: if (ai->cnt < MAX_ABSTRACT_INFO_CNT) {
! 1602: ai->afn[ai->cnt] = fn;
! 1603: }
! 1604: if (fn->common.fn_flags & ZEND_ACC_CTOR) {
! 1605: if (!ai->ctor) {
! 1606: ai->cnt++;
! 1607: ai->ctor = 1;
! 1608: } else {
! 1609: ai->afn[ai->cnt] = NULL;
! 1610: }
! 1611: } else {
! 1612: ai->cnt++;
! 1613: }
! 1614: }
! 1615: return 0;
! 1616: }
! 1617: /* }}} */
! 1618:
! 1619: void zend_verify_abstract_class(zend_class_entry *ce TSRMLS_DC) /* {{{ */
! 1620: {
! 1621: zend_abstract_info ai;
! 1622:
! 1623: if ((ce->ce_flags & ZEND_ACC_IMPLICIT_ABSTRACT_CLASS) && !(ce->ce_flags & ZEND_ACC_EXPLICIT_ABSTRACT_CLASS)) {
! 1624: memset(&ai, 0, sizeof(ai));
! 1625:
! 1626: zend_hash_apply_with_argument(&ce->function_table, (apply_func_arg_t) zend_verify_abstract_class_function, &ai TSRMLS_CC);
! 1627:
! 1628: if (ai.cnt) {
! 1629: 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 ")",
! 1630: ce->name, ai.cnt,
! 1631: ai.cnt > 1 ? "s" : "",
! 1632: DISPLAY_ABSTRACT_FN(0),
! 1633: DISPLAY_ABSTRACT_FN(1),
! 1634: DISPLAY_ABSTRACT_FN(2)
! 1635: );
! 1636: }
! 1637: }
! 1638: }
! 1639: /* }}} */
! 1640:
! 1641: ZEND_API void zend_reset_all_cv(HashTable *symbol_table TSRMLS_DC) /* {{{ */
! 1642: {
! 1643: zend_execute_data *ex;
! 1644: int i;
! 1645:
! 1646: for (ex = EG(current_execute_data); ex; ex = ex->prev_execute_data) {
! 1647: if (ex->op_array && ex->symbol_table == symbol_table) {
! 1648: for (i = 0; i < ex->op_array->last_var; i++) {
! 1649: ex->CVs[i] = NULL;
! 1650: }
! 1651: }
! 1652: }
! 1653: }
! 1654: /* }}} */
! 1655:
! 1656: ZEND_API int zend_delete_global_variable(char *name, int name_len TSRMLS_DC) /* {{{ */
! 1657: {
! 1658: zend_execute_data *ex;
! 1659: ulong hash_value = zend_inline_hash_func(name, name_len + 1);
! 1660:
! 1661: if (zend_hash_quick_exists(&EG(symbol_table), name, name_len + 1, hash_value)) {
! 1662: for (ex = EG(current_execute_data); ex; ex = ex->prev_execute_data) {
! 1663: if (ex->op_array && ex->symbol_table == &EG(symbol_table)) {
! 1664: int i;
! 1665: for (i = 0; i < ex->op_array->last_var; i++) {
! 1666: if (ex->op_array->vars[i].hash_value == hash_value &&
! 1667: ex->op_array->vars[i].name_len == name_len &&
! 1668: !memcmp(ex->op_array->vars[i].name, name, name_len)
! 1669: ) {
! 1670: ex->CVs[i] = NULL;
! 1671: break;
! 1672: }
! 1673: }
! 1674: }
! 1675: }
! 1676: return zend_hash_quick_del(&EG(symbol_table), name, name_len + 1, hash_value);
! 1677: }
! 1678: return FAILURE;
! 1679: }
! 1680: /* }}} */
! 1681:
! 1682: ZEND_API void zend_rebuild_symbol_table(TSRMLS_D) /* {{{ */
! 1683: {
! 1684: zend_uint i;
! 1685: zend_execute_data *ex;
! 1686:
! 1687: if (!EG(active_symbol_table)) {
! 1688:
! 1689: /* Search for last called user function */
! 1690: ex = EG(current_execute_data);
! 1691: while (ex && !ex->op_array) {
! 1692: ex = ex->prev_execute_data;
! 1693: }
! 1694: if (ex && ex->symbol_table) {
! 1695: EG(active_symbol_table) = ex->symbol_table;
! 1696: return;
! 1697: }
! 1698:
! 1699: if (ex && ex->op_array) {
! 1700: if (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
! 1701: /*printf("Cache hit! Reusing %x\n", symtable_cache[symtable_cache_ptr]);*/
! 1702: EG(active_symbol_table) = *(EG(symtable_cache_ptr)--);
! 1703: } else {
! 1704: ALLOC_HASHTABLE(EG(active_symbol_table));
! 1705: zend_hash_init(EG(active_symbol_table), 0, NULL, ZVAL_PTR_DTOR, 0);
! 1706: /*printf("Cache miss! Initialized %x\n", EG(active_symbol_table));*/
! 1707: }
! 1708: ex->symbol_table = EG(active_symbol_table);
! 1709:
! 1710: if (ex->op_array->this_var != -1 &&
! 1711: !ex->CVs[ex->op_array->this_var] &&
! 1712: EG(This)) {
! 1713: ex->CVs[ex->op_array->this_var] = (zval**)ex->CVs + ex->op_array->last_var + ex->op_array->this_var;
! 1714: *ex->CVs[ex->op_array->this_var] = EG(This);
! 1715: }
! 1716: for (i = 0; i < ex->op_array->last_var; i++) {
! 1717: if (ex->CVs[i]) {
! 1718: zend_hash_quick_update(EG(active_symbol_table),
! 1719: ex->op_array->vars[i].name,
! 1720: ex->op_array->vars[i].name_len + 1,
! 1721: ex->op_array->vars[i].hash_value,
! 1722: (void**)ex->CVs[i],
! 1723: sizeof(zval*),
! 1724: (void**)&ex->CVs[i]);
! 1725: }
! 1726: }
! 1727: }
! 1728: }
! 1729: }
! 1730: /* }}} */
! 1731:
! 1732: /*
! 1733: * Local variables:
! 1734: * tab-width: 4
! 1735: * c-basic-offset: 4
! 1736: * indent-tabs-mode: t
! 1737: * End:
! 1738: */
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