117 lines
4.5 KiB
C
117 lines
4.5 KiB
C
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/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 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@php.net> |
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| Zeev Suraski <zeev@php.net> |
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+----------------------------------------------------------------------+
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*/
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#ifndef ZEND_OBJECTS_API_H
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#define ZEND_OBJECTS_API_H
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#include "zend.h"
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#include "zend_compile.h"
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#define OBJ_BUCKET_INVALID (1<<0)
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#define IS_OBJ_VALID(o) (!(((uintptr_t)(o)) & OBJ_BUCKET_INVALID))
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#define SET_OBJ_INVALID(o) ((zend_object*)((((uintptr_t)(o)) | OBJ_BUCKET_INVALID)))
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#define GET_OBJ_BUCKET_NUMBER(o) (((intptr_t)(o)) >> 1)
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#define SET_OBJ_BUCKET_NUMBER(o, n) do { \
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(o) = (zend_object*)((((uintptr_t)(n)) << 1) | OBJ_BUCKET_INVALID); \
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} while (0)
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#define ZEND_OBJECTS_STORE_ADD_TO_FREE_LIST(h) do { \
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SET_OBJ_BUCKET_NUMBER(EG(objects_store).object_buckets[(h)], EG(objects_store).free_list_head); \
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EG(objects_store).free_list_head = (h); \
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} while (0)
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#define OBJ_RELEASE(obj) zend_object_release(obj)
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typedef struct _zend_objects_store {
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zend_object **object_buckets;
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uint32_t top;
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uint32_t size;
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int free_list_head;
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} zend_objects_store;
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/* Global store handling functions */
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BEGIN_EXTERN_C()
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ZEND_API void ZEND_FASTCALL zend_objects_store_init(zend_objects_store *objects, uint32_t init_size);
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ZEND_API void ZEND_FASTCALL zend_objects_store_call_destructors(zend_objects_store *objects);
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ZEND_API void ZEND_FASTCALL zend_objects_store_mark_destructed(zend_objects_store *objects);
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ZEND_API void ZEND_FASTCALL zend_objects_store_free_object_storage(zend_objects_store *objects, bool fast_shutdown);
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ZEND_API void ZEND_FASTCALL zend_objects_store_destroy(zend_objects_store *objects);
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/* Store API functions */
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ZEND_API void ZEND_FASTCALL zend_objects_store_put(zend_object *object);
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ZEND_API void ZEND_FASTCALL zend_objects_store_del(zend_object *object);
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/* Called when the ctor was terminated by an exception */
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static zend_always_inline void zend_object_store_ctor_failed(zend_object *obj)
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{
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GC_ADD_FLAGS(obj, IS_OBJ_DESTRUCTOR_CALLED);
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}
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END_EXTERN_C()
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static zend_always_inline void zend_object_release(zend_object *obj)
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{
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if (GC_DELREF(obj) == 0) {
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zend_objects_store_del(obj);
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} else if (UNEXPECTED(GC_MAY_LEAK((zend_refcounted*)obj))) {
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gc_possible_root((zend_refcounted*)obj);
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}
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}
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static zend_always_inline size_t zend_object_properties_size(zend_class_entry *ce)
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{
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return sizeof(zval) *
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(ce->default_properties_count -
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((ce->ce_flags & ZEND_ACC_USE_GUARDS) ? 0 : 1));
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}
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/* Allocates object type and zeros it, but not the standard zend_object and properties.
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* Standard object MUST be initialized using zend_object_std_init().
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* Properties MUST be initialized using object_properties_init(). */
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static zend_always_inline void *zend_object_alloc(size_t obj_size, zend_class_entry *ce) {
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void *obj = emalloc(obj_size + zend_object_properties_size(ce));
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memset(obj, 0, obj_size - sizeof(zend_object));
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return obj;
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}
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static inline zend_property_info *zend_get_property_info_for_slot(zend_object *obj, zval *slot)
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{
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zend_property_info **table = obj->ce->properties_info_table;
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intptr_t prop_num = slot - obj->properties_table;
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ZEND_ASSERT(prop_num >= 0 && prop_num < obj->ce->default_properties_count);
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return table[prop_num];
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}
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/* Helper for cases where we're only interested in property info of typed properties. */
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static inline zend_property_info *zend_get_typed_property_info_for_slot(zend_object *obj, zval *slot)
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{
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zend_property_info *prop_info = zend_get_property_info_for_slot(obj, slot);
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if (prop_info && ZEND_TYPE_IS_SET(prop_info->type)) {
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return prop_info;
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}
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return NULL;
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}
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#endif /* ZEND_OBJECTS_H */
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