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https://github.com/php/php-src.git
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211 lines
7.2 KiB
C
211 lines
7.2 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2008 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#include "zend.h"
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#include "zend_globals.h"
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#include "zend_variables.h"
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#include "zend_API.h"
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#include "zend_interfaces.h"
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#include "zend_exceptions.h"
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ZEND_API void zend_object_std_init(zend_object *object, zend_class_entry *ce TSRMLS_DC)
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{
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ALLOC_HASHTABLE(object->properties);
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zend_hash_init(object->properties, 0, NULL, ZVAL_PTR_DTOR, 0);
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object->ce = ce;
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object->guards = NULL;
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}
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ZEND_API void zend_object_std_dtor(zend_object *object TSRMLS_DC)
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{
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if (object->guards) {
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zend_hash_destroy(object->guards);
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FREE_HASHTABLE(object->guards);
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}
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if (object->properties) {
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zend_hash_destroy(object->properties);
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FREE_HASHTABLE(object->properties);
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}
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}
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ZEND_API void zend_objects_destroy_object(zend_object *object, zend_object_handle handle TSRMLS_DC)
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{
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zend_function *destructor = object->ce->destructor;
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if (destructor) {
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zval *obj;
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zval *old_exception;
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if (destructor->op_array.fn_flags & (ZEND_ACC_PRIVATE|ZEND_ACC_PROTECTED)) {
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if (destructor->op_array.fn_flags & ZEND_ACC_PRIVATE) {
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/* Ensure that if we're calling a private function, we're allowed to do so.
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*/
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if (object->ce != EG(scope)) {
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zend_class_entry *ce = object->ce;
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zend_error(EG(in_execution) ? E_ERROR : E_WARNING,
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"Call to private %s::__destruct() from context '%s'%s",
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ce->name,
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EG(scope) ? EG(scope)->name : "",
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EG(in_execution) ? "" : " during shutdown ignored");
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return;
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}
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} else {
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/* Ensure that if we're calling a protected function, we're allowed to do so.
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*/
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if (!zend_check_protected(destructor->common.scope, EG(scope))) {
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zend_class_entry *ce = object->ce;
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zend_error(EG(in_execution) ? E_ERROR : E_WARNING,
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"Call to protected %s::__destruct() from context '%s'%s",
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ce->name,
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EG(scope) ? EG(scope)->name : "",
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EG(in_execution) ? "" : " during shutdown ignored");
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return;
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}
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}
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}
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MAKE_STD_ZVAL(obj);
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Z_TYPE_P(obj) = IS_OBJECT;
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Z_OBJ_HANDLE_P(obj) = handle;
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/* TODO: We cannot set proper handlers. */
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Z_OBJ_HT_P(obj) = &std_object_handlers;
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zval_copy_ctor(obj);
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/* Make sure that destructors are protected from previously thrown exceptions.
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* For example, if an exception was thrown in a function and when the function's
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* local variable destruction results in a destructor being called.
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*/
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old_exception = EG(exception);
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EG(exception) = NULL;
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zend_call_method_with_0_params(&obj, object->ce, &destructor, ZEND_DESTRUCTOR_FUNC_NAME, NULL);
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if (old_exception) {
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if (EG(exception)) {
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zend_class_entry *default_exception_ce = zend_exception_get_default(TSRMLS_C);
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zval *file = zend_read_property(default_exception_ce, old_exception, "file", sizeof("file")-1, 1 TSRMLS_CC);
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zval *line = zend_read_property(default_exception_ce, old_exception, "line", sizeof("line")-1, 1 TSRMLS_CC);
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zval_ptr_dtor(&obj);
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zval_ptr_dtor(&EG(exception));
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EG(exception) = old_exception;
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zend_error(E_ERROR, "Ignoring exception from %s::__destruct() while an exception is already active (Uncaught %s in %s on line %ld)",
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object->ce->name, Z_OBJCE_P(old_exception)->name, Z_STRVAL_P(file), Z_LVAL_P(line));
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}
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EG(exception) = old_exception;
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}
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zval_ptr_dtor(&obj);
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}
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}
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ZEND_API void zend_objects_free_object_storage(zend_object *object TSRMLS_DC)
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{
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zend_object_std_dtor(object TSRMLS_CC);
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efree(object);
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}
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ZEND_API zend_object_value zend_objects_new(zend_object **object, zend_class_entry *class_type TSRMLS_DC)
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{
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zend_object_value retval;
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*object = emalloc(sizeof(zend_object));
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(*object)->ce = class_type;
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retval.handle = zend_objects_store_put(*object, (zend_objects_store_dtor_t) zend_objects_destroy_object, (zend_objects_free_object_storage_t) zend_objects_free_object_storage, NULL TSRMLS_CC);
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retval.handlers = &std_object_handlers;
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(*object)->guards = NULL;
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return retval;
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}
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ZEND_API zend_object *zend_objects_get_address(zval *zobject TSRMLS_DC)
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{
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return (zend_object *)zend_object_store_get_object(zobject TSRMLS_CC);
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}
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static void zval_add_ref_or_clone(zval **p)
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{
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if (Z_TYPE_PP(p) == IS_OBJECT && !PZVAL_IS_REF(*p)) {
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TSRMLS_FETCH();
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if (Z_OBJ_HANDLER_PP(p, clone_obj) == NULL) {
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zend_error(E_ERROR, "Trying to clone an uncloneable object of class %s", Z_OBJCE_PP(p)->name);
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} else {
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zval *orig = *p;
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ALLOC_ZVAL(*p);
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**p = *orig;
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INIT_PZVAL(*p);
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(*p)->value.obj = Z_OBJ_HT_PP(p)->clone_obj(orig TSRMLS_CC);
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}
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} else {
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Z_ADDREF_PP(p);
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}
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}
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ZEND_API void zend_objects_clone_members(zend_object *new_object, zend_object_value new_obj_val, zend_object *old_object, zend_object_handle handle TSRMLS_DC)
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{
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if (EG(ze1_compatibility_mode)) {
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zend_hash_copy(new_object->properties, old_object->properties, (copy_ctor_func_t) zval_add_ref_or_clone, (void *) NULL /* Not used anymore */, sizeof(zval *));
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} else {
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zend_hash_copy(new_object->properties, old_object->properties, (copy_ctor_func_t) zval_add_ref, (void *) NULL /* Not used anymore */, sizeof(zval *));
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}
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if (old_object->ce->clone) {
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zval *new_obj;
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MAKE_STD_ZVAL(new_obj);
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new_obj->type = IS_OBJECT;
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new_obj->value.obj = new_obj_val;
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zval_copy_ctor(new_obj);
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zend_call_method_with_0_params(&new_obj, old_object->ce, &old_object->ce->clone, ZEND_CLONE_FUNC_NAME, NULL);
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zval_ptr_dtor(&new_obj);
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}
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}
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ZEND_API zend_object_value zend_objects_clone_obj(zval *zobject TSRMLS_DC)
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{
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zend_object_value new_obj_val;
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zend_object *old_object;
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zend_object *new_object;
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zend_object_handle handle = Z_OBJ_HANDLE_P(zobject);
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/* assume that create isn't overwritten, so when clone depends on the
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* overwritten one then it must itself be overwritten */
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old_object = zend_objects_get_address(zobject TSRMLS_CC);
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new_obj_val = zend_objects_new(&new_object, old_object->ce TSRMLS_CC);
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ALLOC_HASHTABLE(new_object->properties);
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zend_hash_init(new_object->properties, 0, NULL, ZVAL_PTR_DTOR, 0);
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zend_objects_clone_members(new_object, new_obj_val, old_object, handle TSRMLS_CC);
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return new_obj_val;
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}
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* indent-tabs-mode: t
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* End:
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*/
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