diff options
Diffstat (limited to 'Zend/zend_execute_API.c')
| -rw-r--r-- | Zend/zend_execute_API.c | 1189 |
1 files changed, 0 insertions, 1189 deletions
diff --git a/Zend/zend_execute_API.c b/Zend/zend_execute_API.c deleted file mode 100644 index 3d2c4ccd28..0000000000 --- a/Zend/zend_execute_API.c +++ /dev/null @@ -1,1189 +0,0 @@ -/* - +----------------------------------------------------------------------+ - | Zend Engine | - +----------------------------------------------------------------------+ - | Copyright (c) 1998-2004 Zend Technologies Ltd. (http://www.zend.com) | - +----------------------------------------------------------------------+ - | This source file is subject to version 2.00 of the Zend license, | - | that is bundled with this package in the file LICENSE, and is | - | available through the world-wide-web at the following url: | - | http://www.zend.com/license/2_00.txt. | - | If you did not receive a copy of the Zend license and are unable to | - | obtain it through the world-wide-web, please send a note to | - | license@zend.com so we can mail you a copy immediately. | - +----------------------------------------------------------------------+ - | Authors: Andi Gutmans <andi@zend.com> | - | Zeev Suraski <zeev@zend.com> | - +----------------------------------------------------------------------+ -*/ - -/* $Id$ */ - -#include <stdio.h> -#include <signal.h> - -#include "zend.h" -#include "zend_compile.h" -#include "zend_execute.h" -#include "zend_API.h" -#include "zend_ptr_stack.h" -#include "zend_constants.h" -#include "zend_extensions.h" -#include "zend_default_classes.h" -#ifdef HAVE_SYS_TIME_H -#include <sys/time.h> -#endif - -ZEND_API void (*zend_execute)(zend_op_array *op_array TSRMLS_DC); -ZEND_API void (*zend_execute_internal)(zend_execute_data *execute_data_ptr, int return_value_used TSRMLS_DC); - -/* true globals */ -ZEND_API zend_fcall_info_cache empty_fcall_info_cache = { 0, NULL, NULL, NULL }; - -#ifdef ZEND_WIN32 -#include <process.h> -static WNDCLASS wc; -static HWND timeout_window; -static HANDLE timeout_thread_event; -static DWORD timeout_thread_id; -static int timeout_thread_initialized=0; -#endif - - -#if ZEND_DEBUG -static void (*original_sigsegv_handler)(int); -static void zend_handle_sigsegv(int dummy) -{ - fflush(stdout); - fflush(stderr); - if (original_sigsegv_handler==zend_handle_sigsegv) { - signal(SIGSEGV, original_sigsegv_handler); - } else { - signal(SIGSEGV, SIG_DFL); - } - { - TSRMLS_FETCH(); - - fprintf(stderr, "SIGSEGV caught on opcode %d on opline %d of %s() at %s:%d\n\n", - active_opline->opcode, - active_opline-EG(active_op_array)->opcodes, - get_active_function_name(TSRMLS_C), - zend_get_executed_filename(TSRMLS_C), - zend_get_executed_lineno(TSRMLS_C)); - } - if (original_sigsegv_handler!=zend_handle_sigsegv) { - original_sigsegv_handler(dummy); - } -} -#endif - - -static void zend_extension_activator(zend_extension *extension TSRMLS_DC) -{ - if (extension->activate) { - extension->activate(); - } -} - - -static void zend_extension_deactivator(zend_extension *extension TSRMLS_DC) -{ - if (extension->deactivate) { - extension->deactivate(); - } -} - - -static int is_not_internal_function(zend_function *function TSRMLS_DC) -{ - if (function->type == ZEND_INTERNAL_FUNCTION) { - return EG(full_tables_cleanup) ? 0 : ZEND_HASH_APPLY_STOP; - } else { - return EG(full_tables_cleanup) ? 1 : ZEND_HASH_APPLY_REMOVE; - } -} - - -static int is_not_internal_class(zend_class_entry **ce TSRMLS_DC) -{ - if ((*ce)->type == ZEND_INTERNAL_CLASS) { - return EG(full_tables_cleanup) ? 0 : ZEND_HASH_APPLY_STOP; - } else { - return EG(full_tables_cleanup) ? 1 : ZEND_HASH_APPLY_REMOVE; - } -} - - -void init_executor(TSRMLS_D) -{ - INIT_ZVAL(EG(uninitialized_zval)); -/* trick to make uninitialized_zval never be modified, passed by ref, etc. */ - EG(uninitialized_zval).refcount++; - INIT_ZVAL(EG(error_zval)); - EG(uninitialized_zval_ptr)=&EG(uninitialized_zval); - EG(error_zval_ptr)=&EG(error_zval); - zend_ptr_stack_init(&EG(arg_types_stack)); -/* destroys stack frame, therefore makes core dumps worthless */ -#if 0&&ZEND_DEBUG - original_sigsegv_handler = signal(SIGSEGV, zend_handle_sigsegv); -#endif - EG(return_value_ptr_ptr) = NULL; - - EG(symtable_cache_ptr) = EG(symtable_cache)-1; - EG(symtable_cache_limit)=EG(symtable_cache)+SYMTABLE_CACHE_SIZE-1; - EG(no_extensions)=0; - EG(implicit_clone)=0; - - EG(function_table) = CG(function_table); - EG(class_table) = CG(class_table); - - EG(in_execution) = 0; - EG(in_autoload) = 0; - - zend_ptr_stack_init(&EG(argument_stack)); - - zend_hash_init(&EG(symbol_table), 50, NULL, ZVAL_PTR_DTOR, 0); - { - zval *globals; - - ALLOC_ZVAL(globals); - globals->refcount=1; - globals->is_ref=1; - globals->type = IS_ARRAY; - globals->value.ht = &EG(symbol_table); - zend_hash_update(&EG(symbol_table), "GLOBALS", sizeof("GLOBALS"), &globals, sizeof(zval *), NULL); - } - EG(active_symbol_table) = &EG(symbol_table); - - zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_activator TSRMLS_CC); - EG(opline_ptr) = NULL; - EG(garbage_ptr) = 0; - - zend_hash_init(&EG(included_files), 5, NULL, NULL, 0); - - EG(ticks_count) = 0; - - EG(user_error_handler) = NULL; - - EG(current_execute_data) = NULL; - - zend_stack_init(&EG(user_error_handlers_error_reporting)); - zend_ptr_stack_init(&EG(user_error_handlers)); - zend_ptr_stack_init(&EG(user_exception_handlers)); - - zend_objects_store_init(&EG(objects_store), 1024); - - EG(full_tables_cleanup) = 0; -#ifdef ZEND_WIN32 - EG(timed_out) = 0; -#endif - - EG(exception) = NULL; - - EG(scope) = NULL; - - EG(current_execute_data) = NULL; - - EG(This) = NULL; - - EG(float_separator)[0] = '.'; -} - -void shutdown_executor(TSRMLS_D) -{ - zend_try { -/* Removed because this can not be safely done, e.g. in this situation: - Object 1 creates object 2 - Object 3 holds reference to object 2. - Now when 1 and 2 are destroyed, 3 can still access 2 in its destructor, with - very problematic results */ -/* zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC); */ - -/* Moved after symbol table cleaners, because some of the cleaners can call - destructors, which would use EG(symtable_cache_ptr) and thus leave leaks */ -/* while (EG(symtable_cache_ptr)>=EG(symtable_cache)) { - zend_hash_destroy(*EG(symtable_cache_ptr)); - efree(*EG(symtable_cache_ptr)); - EG(symtable_cache_ptr)--; - } -*/ - zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_deactivator TSRMLS_CC); - - zend_hash_graceful_reverse_destroy(&EG(symbol_table)); - } zend_end_try(); - - zend_try { - zval *zeh; - /* remove error handlers before destroying classes and functions, - so that if handler used some class, crash would not happen */ - if (EG(user_error_handler)) { - zeh = EG(user_error_handler); - EG(user_error_handler) = NULL; - zval_dtor(zeh); - FREE_ZVAL(zeh); - } - - if (EG(user_exception_handler)) { - zeh = EG(user_exception_handler); - EG(user_exception_handler) = NULL; - zval_dtor(zeh); - FREE_ZVAL(zeh); - } - - zend_stack_destroy(&EG(user_error_handlers_error_reporting)); - zend_stack_init(&EG(user_error_handlers_error_reporting)); - zend_ptr_stack_clean(&EG(user_error_handlers), ZVAL_DESTRUCTOR, 1); - zend_ptr_stack_clean(&EG(user_exception_handlers), ZVAL_DESTRUCTOR, 1); - } zend_end_try(); - - zend_try { - /* Cleanup static data for functions and arrays. - We need separate cleanup stage because of the following problem: - Suppose we destroy class X, which destroys function table, - and in function table we have function foo() that has static $bar. Now if - object of class X is assigned to $bar, its destructor will be called and will - fail since X's function table is in mid-destruction. - So we want first of all to clean up all data and then move to tables destruction. - Note that only run-time accessed data need to be cleaned up, pre-defined data can - not contain objects and thus are not probelmatic */ - zend_hash_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data TSRMLS_CC); - zend_hash_apply(EG(class_table), (apply_func_t) zend_cleanup_class_data TSRMLS_CC); - - while (EG(garbage_ptr)) { - if (EG(garbage)[--EG(garbage_ptr)]->refcount==1) { - zval_ptr_dtor(&EG(garbage)[EG(garbage_ptr)]); - } - } - - zend_ptr_stack_destroy(&EG(argument_stack)); - - /* Destroy all op arrays */ - if (EG(full_tables_cleanup)) { - zend_hash_apply(EG(function_table), (apply_func_t) is_not_internal_function TSRMLS_CC); - zend_hash_apply(EG(class_table), (apply_func_t) is_not_internal_class TSRMLS_CC); - } else { - zend_hash_reverse_apply(EG(function_table), (apply_func_t) is_not_internal_function TSRMLS_CC); - zend_hash_reverse_apply(EG(class_table), (apply_func_t) is_not_internal_class TSRMLS_CC); - } - - while (EG(symtable_cache_ptr)>=EG(symtable_cache)) { - zend_hash_destroy(*EG(symtable_cache_ptr)); - FREE_HASHTABLE(*EG(symtable_cache_ptr)); - EG(symtable_cache_ptr)--; - } - } zend_end_try(); - - zend_try { - clean_non_persistent_constants(TSRMLS_C); - } zend_end_try(); - - /* The regular list must be destroyed after the main symbol table, - * op arrays, and constants are destroyed. - */ - zend_destroy_rsrc_list(&EG(regular_list) TSRMLS_CC); - - zend_try { -#if ZEND_DEBUG - signal(SIGSEGV, original_sigsegv_handler); -#endif - - zend_hash_destroy(&EG(included_files)); - - zend_ptr_stack_destroy(&EG(arg_types_stack)); - zend_stack_destroy(&EG(user_error_handlers_error_reporting)); - zend_ptr_stack_destroy(&EG(user_error_handlers)); - zend_ptr_stack_destroy(&EG(user_exception_handlers)); - zend_objects_store_destroy(&EG(objects_store)); - } zend_end_try(); -} - - -ZEND_API char *get_active_function_name(TSRMLS_D) -{ - if (!zend_is_executing(TSRMLS_C)) { - return NULL; - } - switch (EG(function_state_ptr)->function->type) { - case ZEND_USER_FUNCTION: { - char *function_name = ((zend_op_array *) EG(function_state_ptr)->function)->function_name; - - if (function_name) { - return function_name; - } else { - return "main"; - } - } - break; - case ZEND_INTERNAL_FUNCTION: - return ((zend_internal_function *) EG(function_state_ptr)->function)->function_name; - break; - default: - return NULL; - } -} - - -ZEND_API char *zend_get_executed_filename(TSRMLS_D) -{ - if (EG(active_op_array)) { - return EG(active_op_array)->filename; - } else { - return "[no active file]"; - } -} - - -ZEND_API uint zend_get_executed_lineno(TSRMLS_D) -{ - if (EG(opline_ptr)) { - return active_opline->lineno; - } else { - return 0; - } -} - - -ZEND_API zend_bool zend_is_executing(TSRMLS_D) -{ - return EG(in_execution); -} - - -ZEND_API void _zval_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) -{ -#if DEBUG_ZEND>=2 - printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, (*zval_ptr)->refcount, (*zval_ptr)->refcount-1); -#endif - (*zval_ptr)->refcount--; - if ((*zval_ptr)->refcount==0) { - zval_dtor(*zval_ptr); - safe_free_zval_ptr_rel(*zval_ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC); - } else if ((*zval_ptr)->refcount == 1) { - (*zval_ptr)->is_ref = 0; - } -} - - -ZEND_API void _zval_internal_ptr_dtor(zval **zval_ptr ZEND_FILE_LINE_DC) -{ -#if DEBUG_ZEND>=2 - printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, (*zval_ptr)->refcount, (*zval_ptr)->refcount-1); -#endif - (*zval_ptr)->refcount--; - if ((*zval_ptr)->refcount==0) { - zval_internal_dtor(*zval_ptr); - free(*zval_ptr); - } else if ((*zval_ptr)->refcount == 1) { - (*zval_ptr)->is_ref = 0; - } -} - - -ZEND_API int zend_is_true(zval *op) -{ - return i_zend_is_true(op); -} - -#include "../TSRM/tsrm_strtok_r.h" - -ZEND_API int zval_update_constant(zval **pp, void *arg TSRMLS_DC) -{ - zval *p = *pp; - zend_bool inline_change = (zend_bool) (unsigned long) arg; - zval const_value; - - if (p->type == IS_CONSTANT) { - int refcount; - - SEPARATE_ZVAL(pp); - p = *pp; - - refcount = p->refcount; - - if (!zend_get_constant(p->value.str.val, p->value.str.len, &const_value TSRMLS_CC)) { - zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", - p->value.str.val, - p->value.str.val); - p->type = IS_STRING; - if (!inline_change) { - zval_copy_ctor(p); - } - } else { - if (inline_change) { - STR_FREE(p->value.str.val); - } - *p = const_value; - } - - INIT_PZVAL(p); - p->refcount = refcount; - } else if (p->type == IS_CONSTANT_ARRAY) { - zval **element, *new_val; - char *str_index; - uint str_index_len; - ulong num_index; - - SEPARATE_ZVAL(pp); - p = *pp; - p->type = IS_ARRAY; - - /* First go over the array and see if there are any constant indices */ - zend_hash_internal_pointer_reset(p->value.ht); - while (zend_hash_get_current_data(p->value.ht, (void **) &element)==SUCCESS) { - if (!(Z_TYPE_PP(element) & IS_CONSTANT_INDEX)) { - zend_hash_move_forward(p->value.ht); - continue; - } - Z_TYPE_PP(element) &= ~IS_CONSTANT_INDEX; - if (zend_hash_get_current_key_ex(p->value.ht, &str_index, &str_index_len, &num_index, 0, NULL)!=HASH_KEY_IS_STRING) { - zend_hash_move_forward(p->value.ht); - continue; - } - if (!zend_get_constant(str_index, str_index_len-1, &const_value TSRMLS_CC)) { - zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'", str_index, str_index); - zend_hash_move_forward(p->value.ht); - continue; - } - - if (const_value.type == IS_STRING && const_value.value.str.len == str_index_len-1 && - !strncmp(const_value.value.str.val, str_index, str_index_len)) { - /* constant value is the same as its name */ - zval_dtor(&const_value); - zend_hash_move_forward(p->value.ht); - continue; - } - - ALLOC_ZVAL(new_val); - *new_val = **element; - zval_copy_ctor(new_val); - new_val->refcount = 1; - new_val->is_ref = 0; - - /* preserve this bit for inheritance */ - Z_TYPE_PP(element) |= IS_CONSTANT_INDEX; - - switch (const_value.type) { - case IS_STRING: - zend_hash_update(p->value.ht, const_value.value.str.val, const_value.value.str.len+1, &new_val, sizeof(zval *), NULL); - break; - case IS_LONG: - zend_hash_index_update(p->value.ht, const_value.value.lval, &new_val, sizeof(zval *), NULL); - break; - } - zend_hash_del(p->value.ht, str_index, str_index_len); - zval_dtor(&const_value); - } - zend_hash_apply_with_argument(p->value.ht, (apply_func_arg_t) zval_update_constant, (void *) 1 TSRMLS_CC); - zend_hash_internal_pointer_reset(p->value.ht); - } - return 0; -} - - -int call_user_function(HashTable *function_table, zval **object_pp, zval *function_name, zval *retval_ptr, zend_uint param_count, zval *params[] TSRMLS_DC) -{ - zval ***params_array = (zval ***) emalloc(sizeof(zval **)*param_count); - zend_uint i; - int ex_retval; - zval *local_retval_ptr; - - for (i=0; i<param_count; i++) { - params_array[i] = ¶ms[i]; - } - ex_retval = call_user_function_ex(function_table, object_pp, function_name, &local_retval_ptr, param_count, params_array, 1, NULL TSRMLS_CC); - if (local_retval_ptr) { - COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr); - } else { - INIT_ZVAL(*retval_ptr); - } - efree(params_array); - return ex_retval; -} - - -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) -{ - zend_fcall_info fci; - - fci.size = sizeof(fci); - fci.function_table = function_table; - fci.object_pp = object_pp; - fci.function_name = function_name; - fci.retval_ptr_ptr = retval_ptr_ptr; - fci.param_count = param_count; - fci.params = params; - fci.no_separation = (zend_bool) no_separation; - fci.symbol_table = symbol_table; - - return zend_call_function(&fci, NULL TSRMLS_CC); -} - - -int zend_call_function(zend_fcall_info *fci, zend_fcall_info_cache *fci_cache TSRMLS_DC) -{ - zend_uint i; - zval **original_return_value; - HashTable *calling_symbol_table; - zend_function_state *original_function_state_ptr; - zend_op_array *original_op_array; - zend_op **original_opline_ptr; - zval *orig_free_op1, *orig_free_op2; - int (*orig_unary_op)(zval *result, zval *op1); - int (*orig_binary_op)(zval *result, zval *op1, zval *op2 TSRMLS_DC); - zend_class_entry *current_scope; - zend_class_entry *calling_scope = NULL; - char *function_name_lc; - zval *current_this; - zend_execute_data execute_data; - zval *method_name; - zval *params_array; - int call_via_handler = 0; - - switch (fci->size) { - case sizeof(zend_fcall_info): - break; /* nothing to do currently */ - default: - zend_error(E_ERROR, "Corrupted fcall_info provided to zend_call_function()"); - break; - } - - /* Initialize execute_data */ - EX(fbc) = NULL; - EX(object) = NULL; - EX(Ts) = NULL; - EX(op_array) = NULL; - EX(opline) = NULL; - *fci->retval_ptr_ptr = NULL; - - if (!fci_cache || !fci_cache->initialized) { - if (fci->function_name->type==IS_ARRAY) { /* assume array($obj, $name) couple */ - zval **tmp_object_ptr, **tmp_real_function_name; - - if (zend_hash_index_find(fci->function_name->value.ht, 0, (void **) &tmp_object_ptr)==FAILURE) { - return FAILURE; - } - if (zend_hash_index_find(fci->function_name->value.ht, 1, (void **) &tmp_real_function_name)==FAILURE) { - return FAILURE; - } - fci->function_name = *tmp_real_function_name; - SEPARATE_ZVAL_IF_NOT_REF(tmp_object_ptr); - fci->object_pp = tmp_object_ptr; - (*fci->object_pp)->is_ref = 1; - } - - if (fci->object_pp && !*fci->object_pp) { - fci->object_pp = NULL; - } - - if (fci->object_pp) { - /* TBI!! new object handlers */ - if (Z_TYPE_PP(fci->object_pp) == IS_OBJECT) { - if (!IS_ZEND_STD_OBJECT(**fci->object_pp)) { - zend_error(E_WARNING, "Cannot use call_user_function on objects without a class entry"); - return FAILURE; - } - - calling_scope = Z_OBJCE_PP(fci->object_pp); - fci->function_table = &calling_scope->function_table; - EX(object) = *fci->object_pp; - } else if (Z_TYPE_PP(fci->object_pp) == IS_STRING) { - zend_class_entry **ce; - int found = FAILURE; - - if (EG(active_op_array) && strcmp(Z_STRVAL_PP(fci->object_pp), "self") == 0) { - ce = &(EG(active_op_array)->scope); - found = (*ce != NULL?SUCCESS:FAILURE); - } else if (strcmp(Z_STRVAL_PP(fci->object_pp), "parent") == 0 && EG(active_op_array) && EG(active_op_array)->scope) { - ce = &(EG(active_op_array)->scope->parent); - found = (*ce != NULL?SUCCESS:FAILURE); - } else { - found = zend_lookup_class(Z_STRVAL_PP(fci->object_pp), Z_STRLEN_PP(fci->object_pp), &ce TSRMLS_CC); - } - if (found == FAILURE) - return FAILURE; - - fci->function_table = &(*ce)->function_table; - calling_scope = *ce; - fci->object_pp = NULL; - } - - if (fci->function_table == NULL) { - return FAILURE; - } - } - - if (fci->function_name->type!=IS_STRING) { - return FAILURE; - } - - function_name_lc = zend_str_tolower_dup(fci->function_name->value.str.val, fci->function_name->value.str.len); - - if (zend_hash_find(fci->function_table, function_name_lc, fci->function_name->value.str.len+1, (void **) &EX(function_state).function)==FAILURE) { - /* try calling __call */ - if (calling_scope && calling_scope->__call) { - EX(function_state).function = calling_scope->__call; - /* prepare params */ - ALLOC_INIT_ZVAL(method_name); - ZVAL_STRINGL(method_name, function_name_lc, fci->function_name->value.str.len, 0); - - ALLOC_INIT_ZVAL(params_array); - array_init(params_array); - call_via_handler = 1; - } else { - efree(function_name_lc); - return FAILURE; - } - } else { - efree(function_name_lc); - } - if (fci_cache) { - fci_cache->function_handler = EX(function_state).function; - fci_cache->object_pp = fci->object_pp; - fci_cache->calling_scope = calling_scope; - fci_cache->initialized = 1; - } - } else { - EX(function_state).function = fci_cache->function_handler; - calling_scope = fci_cache->calling_scope; - fci->object_pp = fci_cache->object_pp; - } - - for (i=0; i<fci->param_count; i++) { - zval *param; - - if (ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i+1) - && !PZVAL_IS_REF(*fci->params[i])) { - if ((*fci->params[i])->refcount>1) { - zval *new_zval; - - if (fci->no_separation) { - return FAILURE; - } - ALLOC_ZVAL(new_zval); - *new_zval = **fci->params[i]; - zval_copy_ctor(new_zval); - new_zval->refcount = 1; - (*fci->params[i])->refcount--; - *fci->params[i] = new_zval; - } - (*fci->params[i])->refcount++; - (*fci->params[i])->is_ref = 1; - param = *fci->params[i]; - } else if (*fci->params[i] != &EG(uninitialized_zval)) { - (*fci->params[i])->refcount++; - param = *fci->params[i]; - } else { - ALLOC_ZVAL(param); - *param = **(fci->params[i]); - INIT_PZVAL(param); - } - if (call_via_handler) { - add_next_index_zval(params_array, param); - } else { - zend_ptr_stack_push(&EG(argument_stack), param); - } - } - - if (call_via_handler) { - zend_ptr_stack_push(&EG(argument_stack), method_name); - zend_ptr_stack_push(&EG(argument_stack), params_array); - fci->param_count = 2; - } - - zend_ptr_stack_n_push(&EG(argument_stack), 2, (void *) (long) fci->param_count, NULL); - - original_function_state_ptr = EG(function_state_ptr); - EG(function_state_ptr) = &EX(function_state); - - current_scope = EG(scope); - EG(scope) = calling_scope; - - current_this = EG(This); - - if (fci->object_pp) { - EG(This) = *fci->object_pp; - - if (!PZVAL_IS_REF(EG(This))) { - EG(This)->refcount++; /* For $this pointer */ - } else { - zval *this_ptr; - - ALLOC_ZVAL(this_ptr); - *this_ptr = *EG(This); - INIT_PZVAL(this_ptr); - zval_copy_ctor(this_ptr); - EG(This) = this_ptr; - } - } else { - EG(This) = NULL; - if (calling_scope && !(EX(function_state).function->common.fn_flags & ZEND_ACC_STATIC)) { - int severity; - if (EX(function_state).function->common.fn_flags & ZEND_ACC_ALLOW_STATIC) { - severity = E_STRICT; - } else { - severity = E_ERROR; - } - zend_error(E_STRICT, "Non-static method %s::%s() cannot be called statically", calling_scope->name, EX(function_state).function->common.function_name); - } - } - - EX(prev_execute_data) = EG(current_execute_data); - EG(current_execute_data) = &execute_data; - - if (EX(function_state).function->type == ZEND_USER_FUNCTION) { - calling_symbol_table = EG(active_symbol_table); - EG(scope) = EX(function_state).function->common.scope; - if (fci->symbol_table) { - EG(active_symbol_table) = fci->symbol_table; - } else { - ALLOC_HASHTABLE(EG(active_symbol_table)); - zend_hash_init(EG(active_symbol_table), 0, NULL, ZVAL_PTR_DTOR, 0); - } - - original_return_value = EG(return_value_ptr_ptr); - original_op_array = EG(active_op_array); - EG(return_value_ptr_ptr) = fci->retval_ptr_ptr; - EG(active_op_array) = (zend_op_array *) EX(function_state).function; - original_opline_ptr = EG(opline_ptr); - orig_free_op1 = EG(free_op1); - orig_free_op2 = EG(free_op2); - orig_unary_op = EG(unary_op); - orig_binary_op = EG(binary_op); - zend_execute(EG(active_op_array) TSRMLS_CC); - if (!fci->symbol_table) { - zend_hash_destroy(EG(active_symbol_table)); - FREE_HASHTABLE(EG(active_symbol_table)); - } - EG(active_symbol_table) = calling_symbol_table; - EG(active_op_array) = original_op_array; - EG(return_value_ptr_ptr)=original_return_value; - EG(opline_ptr) = original_opline_ptr; - EG(free_op1) = orig_free_op1; - EG(free_op2) = orig_free_op2; - EG(unary_op) = orig_unary_op; - EG(binary_op) = orig_binary_op; - } else { - ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr); - if (EX(function_state).function->common.scope) { - EG(scope) = EX(function_state).function->common.scope; - } - ((zend_internal_function *) EX(function_state).function)->handler(fci->param_count, *fci->retval_ptr_ptr, (fci->object_pp?*fci->object_pp:NULL), 1 TSRMLS_CC); - INIT_PZVAL(*fci->retval_ptr_ptr); - } - zend_ptr_stack_clear_multiple(TSRMLS_C); - if (call_via_handler) { - zval_ptr_dtor(&method_name); - zval_ptr_dtor(¶ms_array); - } - EG(function_state_ptr) = original_function_state_ptr; - - if (EG(This)) { - zval_ptr_dtor(&EG(This)); - } - EG(scope) = current_scope; - EG(This) = current_this; - EG(current_execute_data) = EX(prev_execute_data); - return SUCCESS; -} - - -ZEND_API int zend_lookup_class(char *name, int name_length, zend_class_entry ***ce TSRMLS_DC) -{ - zval **args[1]; - zval autoload_function; - zval class_name, *class_name_ptr = &class_name; - zval *retval_ptr; - int retval; - char *lc_name; - zval *exception; - - lc_name = do_alloca(name_length + 1); - zend_str_tolower_copy(lc_name, name, name_length); - - if (zend_hash_find(EG(class_table), lc_name, name_length+1, (void **) ce) == SUCCESS) { - free_alloca(lc_name); - return SUCCESS; - } - - if (EG(in_autoload)) { - free_alloca(lc_name); - return FAILURE; - } - EG(in_autoload) = 1; - - ZVAL_STRINGL(&autoload_function, "__autoload", sizeof("__autoload")-1, 0); - - INIT_PZVAL(class_name_ptr); - ZVAL_STRINGL(class_name_ptr, name, name_length, 0); - - args[0] = &class_name_ptr; - - exception = EG(exception); - EG(exception) = NULL; - retval = call_user_function_ex(EG(function_table), NULL, &autoload_function, &retval_ptr, 1, args, 0, NULL TSRMLS_CC); - - EG(in_autoload) = 0; - - if (retval == FAILURE) { - EG(exception) = exception; - free_alloca(lc_name); - return FAILURE; - } - - if (EG(exception)) { - free_alloca(lc_name); - zend_error(E_ERROR, "__autoload(%s) threw an exception of type '%s'", name, Z_OBJCE_P(EG(exception))->name); - return FAILURE; - } - EG(exception) = exception; - - /* If an exception is thrown retval_ptr will be NULL but we bailout before we reach this point */ - zval_ptr_dtor(&retval_ptr); - - retval = zend_hash_find(EG(class_table), lc_name, name_length + 1, (void **) ce); - free_alloca(lc_name); - return retval; -} - -ZEND_API int zend_eval_string(char *str, zval *retval_ptr, char *string_name TSRMLS_DC) -{ - zval pv; - zend_op_array *new_op_array; - zend_op_array *original_active_op_array = EG(active_op_array); - zend_function_state *original_function_state_ptr = EG(function_state_ptr); - zend_uchar original_handle_op_arrays; - int retval; - - if (retval_ptr) { - pv.value.str.len = strlen(str)+sizeof("return ;")-1; - pv.value.str.val = emalloc(pv.value.str.len+1); - strcpy(pv.value.str.val, "return "); - strcat(pv.value.str.val, str); - strcat(pv.value.str.val, " ;"); - } else { - pv.value.str.len = strlen(str); - pv.value.str.val = estrndup(str, pv.value.str.len); - } - pv.type = IS_STRING; - - /*printf("Evaluating '%s'\n", pv.value.str.val);*/ - - original_handle_op_arrays = CG(handle_op_arrays); - CG(handle_op_arrays) = 0; - new_op_array = compile_string(&pv, string_name TSRMLS_CC); - CG(handle_op_arrays) = original_handle_op_arrays; - - if (new_op_array) { - zval *local_retval_ptr=NULL; - zval **original_return_value_ptr_ptr = EG(return_value_ptr_ptr); - zend_op **original_opline_ptr = EG(opline_ptr); - - EG(return_value_ptr_ptr) = &local_retval_ptr; - EG(active_op_array) = new_op_array; - EG(no_extensions)=1; - - zend_execute(new_op_array TSRMLS_CC); - - if (local_retval_ptr) { - if (retval_ptr) { - COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr); - } else { - zval_ptr_dtor(&local_retval_ptr); - } - } else { - if (retval_ptr) { - INIT_ZVAL(*retval_ptr); - } - } - - EG(no_extensions)=0; - EG(opline_ptr) = original_opline_ptr; - EG(active_op_array) = original_active_op_array; - EG(function_state_ptr) = original_function_state_ptr; - destroy_op_array(new_op_array TSRMLS_CC); - efree(new_op_array); - EG(return_value_ptr_ptr) = original_return_value_ptr_ptr; - retval = SUCCESS; - } else { - retval = FAILURE; - } - zval_dtor(&pv); - return retval; -} - - -ZEND_API int zend_eval_string_ex(char *str, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC) -{ - int result; - zval *exception = EG(exception); - - if (handle_exceptions) { - EG(exception) = NULL; - } - result = zend_eval_string(str, retval_ptr, string_name TSRMLS_CC); - if (handle_exceptions && EG(exception)) { - zend_exception_error(EG(exception) TSRMLS_CC); - zval_ptr_dtor(&EG(exception)); - EG(exception) = exception; - result = FAILURE; - } - return result; -} - - -void execute_new_code(TSRMLS_D) -{ - zend_op *opline, *end; - zend_op *ret_opline; - zval *local_retval=NULL; - - if (!CG(interactive) - || CG(active_op_array)->backpatch_count>0 - || CG(active_op_array)->function_name - || CG(active_op_array)->type!=ZEND_USER_FUNCTION) { - return; - } - - ret_opline = get_next_op(CG(active_op_array) TSRMLS_CC); - ret_opline->opcode = ZEND_RETURN; - ret_opline->op1.op_type = IS_CONST; - INIT_ZVAL(ret_opline->op1.u.constant); - SET_UNUSED(ret_opline->op2); - - if (!CG(active_op_array)->start_op) { - CG(active_op_array)->start_op = CG(active_op_array)->opcodes; - } - - opline=CG(active_op_array)->start_op; - end=CG(active_op_array)->opcodes+CG(active_op_array)->last; - - while (opline<end) { - if (opline->op1.op_type==IS_CONST) { - opline->op1.u.constant.is_ref = 1; - opline->op1.u.constant.refcount = 2; /* Make sure is_ref won't be reset */ - } - if (opline->op2.op_type==IS_CONST) { - opline->op2.u.constant.is_ref = 1; - opline->op2.u.constant.refcount = 2; - } - opline->handler = zend_opcode_handlers[opline->opcode]; - opline++; - } - - EG(return_value_ptr_ptr) = &local_retval; - EG(active_op_array) = CG(active_op_array); - zend_execute(CG(active_op_array) TSRMLS_CC); - if (local_retval) { - zval_ptr_dtor(&local_retval); - } - - CG(active_op_array)->last--; /* get rid of that ZEND_RETURN */ - CG(active_op_array)->start_op = CG(active_op_array)->opcodes+CG(active_op_array)->last; -} - - -ZEND_API void zend_timeout(int dummy) -{ - TSRMLS_FETCH(); - - if (zend_on_timeout) { - zend_on_timeout(EG(timeout_seconds) TSRMLS_CC); - } - - zend_error(E_ERROR, "Maximum execution time of %d second%s exceeded", - EG(timeout_seconds), EG(timeout_seconds) == 1 ? "" : "s"); -} - - -#ifdef ZEND_WIN32 -static LRESULT CALLBACK zend_timeout_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) -{ - switch (message) { - case WM_DESTROY: - PostQuitMessage(0); - break; - case WM_REGISTER_ZEND_TIMEOUT: - /* wParam is the thread id pointer, lParam is the timeout amount in seconds */ - if (lParam==0) { - KillTimer(timeout_window, wParam); - } else { - SetTimer(timeout_window, wParam, lParam*1000, NULL); - } - break; - case WM_UNREGISTER_ZEND_TIMEOUT: - /* wParam is the thread id pointer */ - KillTimer(timeout_window, wParam); - break; - case WM_TIMER: { -#ifdef ZTS - void ***tsrm_ls; - - tsrm_ls = ts_resource_ex(0, &wParam); - if (!tsrm_ls) { - /* Thread died before receiving its timeout? */ - break; - } -#endif - KillTimer(timeout_window, wParam); - EG(timed_out) = 1; - } - break; - default: - return DefWindowProc(hWnd, message, wParam, lParam); - } - return 0; -} - - - -static unsigned __stdcall timeout_thread_proc(void *pArgs) -{ - MSG message; - - wc.style=0; - wc.lpfnWndProc = zend_timeout_WndProc; - wc.cbClsExtra=0; - wc.cbWndExtra=0; - wc.hInstance=NULL; - wc.hIcon=NULL; - wc.hCursor=NULL; - wc.hbrBackground=(HBRUSH)(COLOR_BACKGROUND + 5); - wc.lpszMenuName=NULL; - wc.lpszClassName = "Zend Timeout Window"; - if (!RegisterClass(&wc)) { - return -1; - } - timeout_window = CreateWindow(wc.lpszClassName, wc.lpszClassName, 0, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, NULL, NULL); - SetEvent(timeout_thread_event); - while (GetMessage(&message, NULL, 0, 0)) { - SendMessage(timeout_window, message.message, message.wParam, message.lParam); - if (message.message == WM_QUIT) { - break; - } - } - DestroyWindow(timeout_window); - UnregisterClass(wc.lpszClassName, NULL); - return 0; -} - - -void zend_init_timeout_thread() -{ - timeout_thread_event = CreateEvent(NULL, FALSE, FALSE, NULL); - _beginthreadex(NULL, 0, timeout_thread_proc, NULL, 0, &timeout_thread_id); - WaitForSingleObject(timeout_thread_event, INFINITE); -} - - -void zend_shutdown_timeout_thread() -{ - if (!timeout_thread_initialized) { - return; - } - PostThreadMessage(timeout_thread_id, WM_QUIT, 0, 0); -} - -#endif - -/* This one doesn't exists on QNX */ -#ifndef SIGPROF -#define SIGPROF 27 -#endif - -void zend_set_timeout(long seconds) -{ - TSRMLS_FETCH(); - - EG(timeout_seconds) = seconds; -#ifdef ZEND_WIN32 - if (timeout_thread_initialized==0 && InterlockedIncrement(&timeout_thread_initialized)==1) { - /* We start up this process-wide thread here and not in zend_startup(), because if Zend - * is initialized inside a DllMain(), you're not supposed to start threads from it. - */ - zend_init_timeout_thread(); - } - PostThreadMessage(timeout_thread_id, WM_REGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) seconds); -#else -# ifdef HAVE_SETITIMER - { - struct itimerval t_r; /* timeout requested */ - sigset_t sigset; - - t_r.it_value.tv_sec = seconds; - t_r.it_value.tv_usec = t_r.it_interval.tv_sec = t_r.it_interval.tv_usec = 0; - - setitimer(ITIMER_PROF, &t_r, NULL); - signal(SIGPROF, zend_timeout); - sigemptyset(&sigset); - sigaddset(&sigset, SIGPROF); - sigprocmask(SIG_UNBLOCK, &sigset, NULL); - } -# endif -#endif -} - - -void zend_unset_timeout(TSRMLS_D) -{ -#ifdef ZEND_WIN32 - PostThreadMessage(timeout_thread_id, WM_UNREGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) 0); -#else -# ifdef HAVE_SETITIMER - { - struct itimerval no_timeout; - - 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; - - setitimer(ITIMER_PROF, &no_timeout, NULL); - } -# endif -#endif -} - - -zend_class_entry *zend_fetch_class(char *class_name, uint class_name_len, int fetch_type TSRMLS_DC) -{ - zend_class_entry **pce; - zend_bool in_autoload; - -check_fetch_type: - switch (fetch_type) { - case ZEND_FETCH_CLASS_SELF: - if (!EG(scope)) { - zend_error(E_ERROR, "Cannot access self:: when no class scope is active"); - } - return EG(scope); - case ZEND_FETCH_CLASS_PARENT: - if (!EG(scope)) { - zend_error(E_ERROR, "Cannot access parent:: when no class scope is active"); - } - if (!EG(scope)->parent) { - zend_error(E_ERROR, "Cannot access parent:: when current class scope has no parent"); - } - return EG(scope)->parent; - case ZEND_FETCH_CLASS_AUTO: { - fetch_type = zend_get_class_fetch_type(class_name, class_name_len); - if (fetch_type!=ZEND_FETCH_CLASS_DEFAULT) { - goto check_fetch_type; - } - } - break; - } - - in_autoload = EG(in_autoload); - EG(in_autoload) = 0; - if (zend_lookup_class(class_name, class_name_len, &pce TSRMLS_CC)==FAILURE) { - EG(in_autoload) = in_autoload; - zend_error(E_ERROR, "Class '%s' not found", class_name); - } - EG(in_autoload) = in_autoload; - return *pce; -} - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * indent-tabs-mode: t - * End: - */ |