Annotation of embedaddon/php/Zend/zend_objects.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_objects.c 321634 2012-01-01 13:15:04Z felipe $ */
! 21:
! 22: #include "zend.h"
! 23: #include "zend_globals.h"
! 24: #include "zend_variables.h"
! 25: #include "zend_API.h"
! 26: #include "zend_interfaces.h"
! 27: #include "zend_exceptions.h"
! 28:
! 29: ZEND_API void zend_object_std_init(zend_object *object, zend_class_entry *ce TSRMLS_DC)
! 30: {
! 31: ALLOC_HASHTABLE(object->properties);
! 32: zend_hash_init(object->properties, 0, NULL, ZVAL_PTR_DTOR, 0);
! 33:
! 34: object->ce = ce;
! 35: object->guards = NULL;
! 36: }
! 37:
! 38: ZEND_API void zend_object_std_dtor(zend_object *object TSRMLS_DC)
! 39: {
! 40: if (object->guards) {
! 41: zend_hash_destroy(object->guards);
! 42: FREE_HASHTABLE(object->guards);
! 43: }
! 44: if (object->properties) {
! 45: zend_hash_destroy(object->properties);
! 46: FREE_HASHTABLE(object->properties);
! 47: }
! 48: }
! 49:
! 50: ZEND_API void zend_objects_destroy_object(zend_object *object, zend_object_handle handle TSRMLS_DC)
! 51: {
! 52: zend_function *destructor = object ? object->ce->destructor : NULL;
! 53:
! 54: if (destructor) {
! 55: zval *old_exception;
! 56: zval *obj;
! 57: zend_object_store_bucket *obj_bucket;
! 58:
! 59: if (destructor->op_array.fn_flags & (ZEND_ACC_PRIVATE|ZEND_ACC_PROTECTED)) {
! 60: if (destructor->op_array.fn_flags & ZEND_ACC_PRIVATE) {
! 61: /* Ensure that if we're calling a private function, we're allowed to do so.
! 62: */
! 63: if (object->ce != EG(scope)) {
! 64: zend_class_entry *ce = object->ce;
! 65:
! 66: zend_error(EG(in_execution) ? E_ERROR : E_WARNING,
! 67: "Call to private %s::__destruct() from context '%s'%s",
! 68: ce->name,
! 69: EG(scope) ? EG(scope)->name : "",
! 70: EG(in_execution) ? "" : " during shutdown ignored");
! 71: return;
! 72: }
! 73: } else {
! 74: /* Ensure that if we're calling a protected function, we're allowed to do so.
! 75: */
! 76: if (!zend_check_protected(destructor->common.scope, EG(scope))) {
! 77: zend_class_entry *ce = object->ce;
! 78:
! 79: zend_error(EG(in_execution) ? E_ERROR : E_WARNING,
! 80: "Call to protected %s::__destruct() from context '%s'%s",
! 81: ce->name,
! 82: EG(scope) ? EG(scope)->name : "",
! 83: EG(in_execution) ? "" : " during shutdown ignored");
! 84: return;
! 85: }
! 86: }
! 87: }
! 88:
! 89: MAKE_STD_ZVAL(obj);
! 90: Z_TYPE_P(obj) = IS_OBJECT;
! 91: Z_OBJ_HANDLE_P(obj) = handle;
! 92: obj_bucket = &EG(objects_store).object_buckets[handle];
! 93: if (!obj_bucket->bucket.obj.handlers) {
! 94: obj_bucket->bucket.obj.handlers = &std_object_handlers;
! 95: }
! 96: Z_OBJ_HT_P(obj) = obj_bucket->bucket.obj.handlers;
! 97: zval_copy_ctor(obj);
! 98:
! 99: /* Make sure that destructors are protected from previously thrown exceptions.
! 100: * For example, if an exception was thrown in a function and when the function's
! 101: * local variable destruction results in a destructor being called.
! 102: */
! 103: old_exception = NULL;
! 104: if (EG(exception)) {
! 105: if (Z_OBJ_HANDLE_P(EG(exception)) == handle) {
! 106: zend_error(E_ERROR, "Attempt to destruct pending exception");
! 107: } else {
! 108: old_exception = EG(exception);
! 109: EG(exception) = NULL;
! 110: }
! 111: }
! 112: zend_call_method_with_0_params(&obj, object->ce, &destructor, ZEND_DESTRUCTOR_FUNC_NAME, NULL);
! 113: if (old_exception) {
! 114: if (EG(exception)) {
! 115: zend_exception_set_previous(EG(exception), old_exception TSRMLS_CC);
! 116: } else {
! 117: EG(exception) = old_exception;
! 118: }
! 119: }
! 120: zval_ptr_dtor(&obj);
! 121: }
! 122: }
! 123:
! 124: ZEND_API void zend_objects_free_object_storage(zend_object *object TSRMLS_DC)
! 125: {
! 126: zend_object_std_dtor(object TSRMLS_CC);
! 127: efree(object);
! 128: }
! 129:
! 130: ZEND_API zend_object_value zend_objects_new(zend_object **object, zend_class_entry *class_type TSRMLS_DC)
! 131: {
! 132: zend_object_value retval;
! 133:
! 134: *object = emalloc(sizeof(zend_object));
! 135: (*object)->ce = class_type;
! 136: 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);
! 137: retval.handlers = &std_object_handlers;
! 138: (*object)->guards = NULL;
! 139: return retval;
! 140: }
! 141:
! 142: ZEND_API zend_object *zend_objects_get_address(const zval *zobject TSRMLS_DC)
! 143: {
! 144: return (zend_object *)zend_object_store_get_object(zobject TSRMLS_CC);
! 145: }
! 146:
! 147: 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)
! 148: {
! 149: zend_hash_copy(new_object->properties, old_object->properties, zval_copy_property_ctor(old_object->ce), (void *) NULL /* Not used anymore */, sizeof(zval *));
! 150:
! 151: if (old_object->ce->clone) {
! 152: zval *new_obj;
! 153:
! 154: MAKE_STD_ZVAL(new_obj);
! 155: new_obj->type = IS_OBJECT;
! 156: new_obj->value.obj = new_obj_val;
! 157: zval_copy_ctor(new_obj);
! 158:
! 159: zend_call_method_with_0_params(&new_obj, old_object->ce, &old_object->ce->clone, ZEND_CLONE_FUNC_NAME, NULL);
! 160:
! 161: zval_ptr_dtor(&new_obj);
! 162: }
! 163: }
! 164:
! 165: ZEND_API zend_object_value zend_objects_clone_obj(zval *zobject TSRMLS_DC)
! 166: {
! 167: zend_object_value new_obj_val;
! 168: zend_object *old_object;
! 169: zend_object *new_object;
! 170: zend_object_handle handle = Z_OBJ_HANDLE_P(zobject);
! 171:
! 172: /* assume that create isn't overwritten, so when clone depends on the
! 173: * overwritten one then it must itself be overwritten */
! 174: old_object = zend_objects_get_address(zobject TSRMLS_CC);
! 175: new_obj_val = zend_objects_new(&new_object, old_object->ce TSRMLS_CC);
! 176:
! 177: ALLOC_HASHTABLE(new_object->properties);
! 178: zend_hash_init(new_object->properties, 0, NULL, ZVAL_PTR_DTOR, 0);
! 179:
! 180: zend_objects_clone_members(new_object, new_obj_val, old_object, handle TSRMLS_CC);
! 181:
! 182: return new_obj_val;
! 183: }
! 184:
! 185: /*
! 186: * Local variables:
! 187: * tab-width: 4
! 188: * c-basic-offset: 4
! 189: * indent-tabs-mode: t
! 190: * End:
! 191: */
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