mirror of
https://github.com/php/php-src.git
synced 2024-09-22 02:17:32 +00:00
330 lines
9.8 KiB
C
330 lines
9.8 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| Zend Engine |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1998-2014 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 "zend.h"
|
|
#include "zend_globals.h"
|
|
#include "zend_variables.h"
|
|
#include "zend_API.h"
|
|
#include "zend_objects_API.h"
|
|
|
|
ZEND_API void zend_objects_store_init(zend_objects_store *objects, uint32_t init_size)
|
|
{
|
|
objects->object_buckets = (zend_object **) emalloc(init_size * sizeof(zend_object*));
|
|
objects->top = 1; /* Skip 0 so that handles are true */
|
|
objects->size = init_size;
|
|
objects->free_list_head = -1;
|
|
memset(&objects->object_buckets[0], 0, sizeof(zend_object*));
|
|
}
|
|
|
|
ZEND_API void zend_objects_store_destroy(zend_objects_store *objects)
|
|
{
|
|
efree(objects->object_buckets);
|
|
objects->object_buckets = NULL;
|
|
}
|
|
|
|
ZEND_API void zend_objects_store_call_destructors(zend_objects_store *objects TSRMLS_DC)
|
|
{
|
|
uint32_t i;
|
|
|
|
for (i = 1; i < objects->top ; i++) {
|
|
zend_object *obj = objects->object_buckets[i];
|
|
|
|
if (IS_OBJ_VALID(obj)) {
|
|
if (!(GC_FLAGS(obj) & IS_OBJ_DESTRUCTOR_CALLED)) {
|
|
GC_FLAGS(obj) |= IS_OBJ_DESTRUCTOR_CALLED;
|
|
GC_REFCOUNT(obj)++;
|
|
obj->handlers->dtor_obj(obj TSRMLS_CC);
|
|
GC_REFCOUNT(obj)--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ZEND_API void zend_objects_store_mark_destructed(zend_objects_store *objects TSRMLS_DC)
|
|
{
|
|
uint32_t i;
|
|
|
|
if (!objects->object_buckets) {
|
|
return;
|
|
}
|
|
for (i = 1; i < objects->top ; i++) {
|
|
zend_object *obj = objects->object_buckets[i];
|
|
|
|
if (IS_OBJ_VALID(obj)) {
|
|
GC_FLAGS(obj) |= IS_OBJ_DESTRUCTOR_CALLED;
|
|
}
|
|
}
|
|
}
|
|
|
|
ZEND_API void zend_objects_store_free_object_storage(zend_objects_store *objects TSRMLS_DC)
|
|
{
|
|
uint32_t i;
|
|
|
|
/* Free object properties but don't free object their selves */
|
|
for (i = objects->top - 1; i > 0 ; i--) {
|
|
zend_object *obj = objects->object_buckets[i];
|
|
|
|
if (IS_OBJ_VALID(obj)) {
|
|
if (!(GC_FLAGS(obj) & IS_OBJ_FREE_CALLED)) {
|
|
GC_FLAGS(obj) |= IS_OBJ_FREE_CALLED;
|
|
if (obj->handlers->free_obj) {
|
|
GC_REFCOUNT(obj)++;
|
|
obj->handlers->free_obj(obj TSRMLS_CC);
|
|
GC_REFCOUNT(obj)--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Now free objects theirselves */
|
|
for (i = 1; i < objects->top ; i++) {
|
|
zend_object *obj = objects->object_buckets[i];
|
|
|
|
if (IS_OBJ_VALID(obj)) {
|
|
/* Not adding to free list as we are shutting down anyway */
|
|
void *ptr = ((char*)obj) - obj->handlers->offset;
|
|
GC_REMOVE_FROM_BUFFER(obj);
|
|
efree(ptr);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* Store objects API */
|
|
|
|
ZEND_API void zend_objects_store_put(zend_object *object TSRMLS_DC)
|
|
{
|
|
int handle;
|
|
|
|
if (EG(objects_store).free_list_head != -1) {
|
|
handle = EG(objects_store).free_list_head;
|
|
EG(objects_store).free_list_head = GET_OBJ_BUCKET_NUMBER(EG(objects_store).object_buckets[handle]);
|
|
} else {
|
|
if (EG(objects_store).top == EG(objects_store).size) {
|
|
EG(objects_store).size <<= 1;
|
|
EG(objects_store).object_buckets = (zend_object **) erealloc(EG(objects_store).object_buckets, EG(objects_store).size * sizeof(zend_object*));
|
|
}
|
|
handle = EG(objects_store).top++;
|
|
}
|
|
object->handle = handle;
|
|
EG(objects_store).object_buckets[handle] = object;
|
|
}
|
|
|
|
#define ZEND_OBJECTS_STORE_ADD_TO_FREE_LIST(handle) \
|
|
SET_OBJ_BUCKET_NUMBER(EG(objects_store).object_buckets[handle], EG(objects_store).free_list_head); \
|
|
EG(objects_store).free_list_head = handle;
|
|
|
|
ZEND_API void zend_objects_store_free(zend_object *object TSRMLS_DC) /* {{{ */
|
|
{
|
|
uint32_t handle = object->handle;
|
|
void *ptr = ((char*)object) - object->handlers->offset;
|
|
|
|
GC_REMOVE_FROM_BUFFER(object);
|
|
efree(ptr);
|
|
ZEND_OBJECTS_STORE_ADD_TO_FREE_LIST(handle);
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void zend_objects_store_del(zend_object *object TSRMLS_DC) /* {{{ */
|
|
{
|
|
/* Make sure we hold a reference count during the destructor call
|
|
otherwise, when the destructor ends the storage might be freed
|
|
when the refcount reaches 0 a second time
|
|
*/
|
|
if (EG(objects_store).object_buckets &&
|
|
IS_OBJ_VALID(EG(objects_store).object_buckets[object->handle])) {
|
|
if (GC_REFCOUNT(object) == 0) {
|
|
int failure = 0;
|
|
|
|
if (!(GC_FLAGS(object) & IS_OBJ_DESTRUCTOR_CALLED)) {
|
|
GC_FLAGS(object) |= IS_OBJ_DESTRUCTOR_CALLED;
|
|
|
|
if (object->handlers->dtor_obj) {
|
|
GC_REFCOUNT(object)++;
|
|
zend_try {
|
|
object->handlers->dtor_obj(object TSRMLS_CC);
|
|
} zend_catch {
|
|
failure = 1;
|
|
} zend_end_try();
|
|
GC_REFCOUNT(object)--;
|
|
}
|
|
}
|
|
|
|
if (GC_REFCOUNT(object) == 0) {
|
|
uint32_t handle = object->handle;
|
|
void *ptr;
|
|
|
|
EG(objects_store).object_buckets[handle] = SET_OBJ_INVALID(object);
|
|
if (!(GC_FLAGS(object) & IS_OBJ_FREE_CALLED)) {
|
|
GC_FLAGS(object) |= IS_OBJ_FREE_CALLED;
|
|
if (object->handlers->free_obj) {
|
|
zend_try {
|
|
GC_REFCOUNT(object)++;
|
|
object->handlers->free_obj(object TSRMLS_CC);
|
|
GC_REFCOUNT(object)--;
|
|
} zend_catch {
|
|
failure = 1;
|
|
} zend_end_try();
|
|
}
|
|
}
|
|
ptr = ((char*)object) - object->handlers->offset;
|
|
GC_REMOVE_FROM_BUFFER(object);
|
|
efree(ptr);
|
|
ZEND_OBJECTS_STORE_ADD_TO_FREE_LIST(handle);
|
|
}
|
|
|
|
if (failure) {
|
|
zend_bailout();
|
|
}
|
|
} else {
|
|
GC_REFCOUNT(object)--;
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
/* zend_object_store_set_object:
|
|
* It is ONLY valid to call this function from within the constructor of an
|
|
* overloaded object. Its purpose is to set the object pointer for the object
|
|
* when you can't possibly know its value until you have parsed the arguments
|
|
* from the constructor function. You MUST NOT use this function for any other
|
|
* weird games, or call it at any other time after the object is constructed.
|
|
* */
|
|
ZEND_API void zend_object_store_set_object(zval *zobject, zend_object *object TSRMLS_DC)
|
|
{
|
|
EG(objects_store).object_buckets[Z_OBJ_HANDLE_P(zobject)] = object;
|
|
}
|
|
|
|
/* Called when the ctor was terminated by an exception */
|
|
ZEND_API void zend_object_store_ctor_failed(zend_object *obj TSRMLS_DC)
|
|
{
|
|
GC_FLAGS(obj) |= IS_OBJ_DESTRUCTOR_CALLED;
|
|
}
|
|
|
|
/* Proxy objects workings */
|
|
typedef struct _zend_proxy_object {
|
|
zend_object std;
|
|
zval object;
|
|
zval property;
|
|
} zend_proxy_object;
|
|
|
|
static zend_object_handlers zend_object_proxy_handlers;
|
|
|
|
ZEND_API void zend_objects_proxy_destroy(zend_object *object TSRMLS_DC)
|
|
{
|
|
}
|
|
|
|
ZEND_API void zend_objects_proxy_free_storage(zend_proxy_object *object TSRMLS_DC)
|
|
{
|
|
zval_ptr_dtor(&object->object);
|
|
zval_ptr_dtor(&object->property);
|
|
efree(object);
|
|
}
|
|
|
|
ZEND_API void zend_objects_proxy_clone(zend_proxy_object *object, zend_proxy_object **object_clone TSRMLS_DC)
|
|
{
|
|
*object_clone = emalloc(sizeof(zend_proxy_object));
|
|
(*object_clone)->object = object->object;
|
|
(*object_clone)->property = object->property;
|
|
Z_ADDREF_P(&(*object_clone)->property);
|
|
Z_ADDREF_P(&(*object_clone)->object);
|
|
}
|
|
|
|
ZEND_API zend_object *zend_object_create_proxy(zval *object, zval *member TSRMLS_DC)
|
|
{
|
|
zend_proxy_object *obj = emalloc(sizeof(zend_proxy_object));
|
|
|
|
GC_REFCOUNT(obj) = 1;
|
|
GC_TYPE_INFO(obj) = IS_OBJECT;
|
|
obj->std.ce = NULL;
|
|
obj->std.properties = NULL;
|
|
obj->std.guards = NULL;
|
|
obj->std.handlers = &zend_object_proxy_handlers;
|
|
|
|
ZVAL_COPY(&obj->object, object);
|
|
ZVAL_DUP(&obj->property, member);
|
|
|
|
return (zend_object*)obj;
|
|
}
|
|
|
|
ZEND_API void zend_object_proxy_set(zval *property, zval *value TSRMLS_DC)
|
|
{
|
|
zend_proxy_object *probj = (zend_proxy_object*)Z_OBJ_P(property);
|
|
|
|
if (Z_OBJ_HT(probj->object) && Z_OBJ_HT(probj->object)->write_property) {
|
|
Z_OBJ_HT(probj->object)->write_property(&probj->object, &probj->property, value, NULL TSRMLS_CC);
|
|
} else {
|
|
zend_error(E_WARNING, "Cannot write property of object - no write handler defined");
|
|
}
|
|
}
|
|
|
|
ZEND_API zval* zend_object_proxy_get(zval *property, zval *rv TSRMLS_DC)
|
|
{
|
|
zend_proxy_object *probj = (zend_proxy_object*)Z_OBJ_P(property);
|
|
|
|
if (Z_OBJ_HT(probj->object) && Z_OBJ_HT(probj->object)->read_property) {
|
|
return Z_OBJ_HT(probj->object)->read_property(&probj->object, &probj->property, BP_VAR_R, NULL, rv TSRMLS_CC);
|
|
} else {
|
|
zend_error(E_WARNING, "Cannot read property of object - no read handler defined");
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
ZEND_API zend_object_handlers *zend_get_std_object_handlers(void)
|
|
{
|
|
return &std_object_handlers;
|
|
}
|
|
|
|
static zend_object_handlers zend_object_proxy_handlers = {
|
|
ZEND_OBJECTS_STORE_HANDLERS,
|
|
|
|
NULL, /* read_property */
|
|
NULL, /* write_property */
|
|
NULL, /* read dimension */
|
|
NULL, /* write_dimension */
|
|
NULL, /* get_property_ptr_ptr */
|
|
zend_object_proxy_get, /* get */
|
|
zend_object_proxy_set, /* set */
|
|
NULL, /* has_property */
|
|
NULL, /* unset_property */
|
|
NULL, /* has_dimension */
|
|
NULL, /* unset_dimension */
|
|
NULL, /* get_properties */
|
|
NULL, /* get_method */
|
|
NULL, /* call_method */
|
|
NULL, /* get_constructor */
|
|
NULL, /* get_class_entry */
|
|
NULL, /* get_class_name */
|
|
NULL, /* compare_objects */
|
|
NULL, /* cast_object */
|
|
NULL, /* count_elements */
|
|
};
|
|
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*/
|