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zend_objects_API.h
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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2018 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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <[email protected]> |
| Zeev Suraski <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_OBJECTS_API_H
#define ZEND_OBJECTS_API_H
#include "zend.h"
#include "zend_compile.h"
#define OBJ_BUCKET_INVALID (1<<0)
#define IS_OBJ_VALID(o) (!(((zend_uintptr_t)(o)) & OBJ_BUCKET_INVALID))
#define SET_OBJ_INVALID(o) ((zend_object*)((((zend_uintptr_t)(o)) | OBJ_BUCKET_INVALID)))
#define GET_OBJ_BUCKET_NUMBER(o) (((zend_intptr_t)(o)) >> 1)
#define SET_OBJ_BUCKET_NUMBER(o, n) do { \
(o) = (zend_object*)((((zend_uintptr_t)(n)) << 1) | OBJ_BUCKET_INVALID); \
} while (0)
#define ZEND_OBJECTS_STORE_ADD_TO_FREE_LIST(h) do { \
SET_OBJ_BUCKET_NUMBER(EG(objects_store).object_buckets[(h)], EG(objects_store).free_list_head); \
EG(objects_store).free_list_head = (h); \
} while (0)
#define OBJ_RELEASE(obj) zend_object_release(obj)
typedef struct _zend_objects_store {
zend_object **object_buckets;
uint32_t top;
uint32_t size;
int free_list_head;
} zend_objects_store;
/* Global store handling functions */
BEGIN_EXTERN_C()
ZEND_API void ZEND_FASTCALL zend_objects_store_init(zend_objects_store *objects, uint32_t init_size);
ZEND_API void ZEND_FASTCALL zend_objects_store_call_destructors(zend_objects_store *objects);
ZEND_API void ZEND_FASTCALL zend_objects_store_mark_destructed(zend_objects_store *objects);
ZEND_API void ZEND_FASTCALL zend_objects_store_free_object_storage(zend_objects_store *objects, zend_bool fast_shutdown);
ZEND_API void ZEND_FASTCALL zend_objects_store_destroy(zend_objects_store *objects);
/* Store API functions */
ZEND_API void ZEND_FASTCALL zend_objects_store_put(zend_object *object);
ZEND_API void ZEND_FASTCALL zend_objects_store_del(zend_object *object);
/* Called when the ctor was terminated by an exception */
static zend_always_inline void zend_object_store_ctor_failed(zend_object *obj)
{
GC_ADD_FLAGS(obj, IS_OBJ_DESTRUCTOR_CALLED);
}
END_EXTERN_C()
static zend_always_inline void zend_object_release(zend_object *obj)
{
if (GC_DELREF(obj) == 0) {
zend_objects_store_del(obj);
} else if (UNEXPECTED(GC_MAY_LEAK((zend_refcounted*)obj))) {
gc_possible_root((zend_refcounted*)obj);
}
}
static zend_always_inline size_t zend_object_properties_size(zend_class_entry *ce)
{
return sizeof(zval) *
(ce->default_properties_count -
((ce->ce_flags & ZEND_ACC_USE_GUARDS) ? 0 : 1));
}
/* Allocates object type and zeros it, but not the properties.
* Properties MUST be initialized using object_properties_init(). */
static zend_always_inline void *zend_object_alloc(size_t obj_size, zend_class_entry *ce) {
void *obj = emalloc(obj_size + zend_object_properties_size(ce));
/* Subtraction of sizeof(zval) is necessary, because zend_object_properties_size() may be
* -sizeof(zval), if the object has no properties. */
memset(obj, 0, obj_size - sizeof(zval));
return obj;
}
#endif /* ZEND_OBJECTS_H */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/