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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 |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
| Dmitry Stogov <dmitry@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include <stdio.h>
#include "zend.h"
#include "zend_API.h"
#include "zend_ast.h"
#include "zend_globals.h"
#include "zend_constants.h"
#include "zend_list.h"
static void ZEND_FASTCALL zend_string_destroy(zend_string *str ZEND_FILE_LINE_DC);
static void ZEND_FASTCALL zend_reference_destroy(zend_reference *ref ZEND_FILE_LINE_DC);
static void ZEND_FASTCALL zend_empty_destroy(zend_reference *ref ZEND_FILE_LINE_DC);
#if ZEND_DEBUG
static void ZEND_FASTCALL zend_array_destroy_wrapper(zend_array *arr ZEND_FILE_LINE_DC);
static void ZEND_FASTCALL zend_object_destroy_wrapper(zend_object *obj ZEND_FILE_LINE_DC);
static void ZEND_FASTCALL zend_resource_destroy_wrapper(zend_resource *res ZEND_FILE_LINE_DC);
static void ZEND_FASTCALL zend_ast_ref_destroy_wrapper(zend_ast_ref *ast ZEND_FILE_LINE_DC);
#else
# define zend_array_destroy_wrapper zend_array_destroy
# define zend_object_destroy_wrapper zend_objects_store_del
# define zend_resource_destroy_wrapper zend_list_free
# define zend_ast_ref_destroy_wrapper zend_ast_ref_destroy
#endif
typedef void ZEND_FASTCALL (*zend_zval_dtor_func_t)(zend_refcounted *p);
static const zend_zval_dtor_func_t zend_zval_dtor_func[] = {
/* IS_UNDEF */ (zend_zval_dtor_func_t)zend_empty_destroy,
/* IS_NULL */ (zend_zval_dtor_func_t)zend_empty_destroy,
/* IS_FALSE */ (zend_zval_dtor_func_t)zend_empty_destroy,
/* IS_TRUE */ (zend_zval_dtor_func_t)zend_empty_destroy,
/* IS_LONG */ (zend_zval_dtor_func_t)zend_empty_destroy,
/* IS_DOUBLE */ (zend_zval_dtor_func_t)zend_empty_destroy,
/* IS_STRING */ (zend_zval_dtor_func_t)zend_string_destroy,
/* IS_ARRAY */ (zend_zval_dtor_func_t)zend_array_destroy_wrapper,
/* IS_OBJECT */ (zend_zval_dtor_func_t)zend_object_destroy_wrapper,
/* IS_RESOURCE */ (zend_zval_dtor_func_t)zend_resource_destroy_wrapper,
/* IS_REFERENCE */ (zend_zval_dtor_func_t)zend_reference_destroy,
/* IS_CONSTANT_AST */ (zend_zval_dtor_func_t)zend_ast_ref_destroy_wrapper
};
ZEND_API void ZEND_FASTCALL _zval_dtor_func(zend_refcounted *p ZEND_FILE_LINE_DC)
{
ZEND_ASSERT(GC_TYPE(p) <= IS_CONSTANT_AST);
zend_zval_dtor_func[GC_TYPE(p)](p);
}
static void ZEND_FASTCALL zend_string_destroy(zend_string *str ZEND_FILE_LINE_DC)
{
CHECK_ZVAL_STRING_REL(str);
ZEND_ASSERT(!ZSTR_IS_INTERNED(str));
ZEND_ASSERT(GC_REFCOUNT(str) == 0);
pefree(str, UNEXPECTED(GC_FLAGS(str) & IS_STR_PERSISTENT));
}
static void ZEND_FASTCALL zend_reference_destroy(zend_reference *ref ZEND_FILE_LINE_DC)
{
i_zval_ptr_dtor(&ref->val ZEND_FILE_LINE_RELAY_CC);
efree_size(ref, sizeof(zend_reference));
}
static void ZEND_FASTCALL zend_empty_destroy(zend_reference *ref ZEND_FILE_LINE_DC)
{
}
#if ZEND_DEBUG
static void ZEND_FASTCALL zend_array_destroy_wrapper(zend_array *arr ZEND_FILE_LINE_DC)
{
zend_array_destroy(arr);
}
static void ZEND_FASTCALL zend_object_destroy_wrapper(zend_object *obj ZEND_FILE_LINE_DC)
{
zend_objects_store_del(obj);
}
static void ZEND_FASTCALL zend_resource_destroy_wrapper(zend_resource *res ZEND_FILE_LINE_DC)
{
zend_list_free(res);
}
static void ZEND_FASTCALL zend_ast_ref_destroy_wrapper(zend_ast_ref *ast ZEND_FILE_LINE_DC)
{
zend_ast_ref_destroy(ast);
}
#endif
ZEND_API void _zval_internal_dtor(zval *zvalue ZEND_FILE_LINE_DC)
{
switch (Z_TYPE_P(zvalue)) {
case IS_STRING:
CHECK_ZVAL_STRING_REL(Z_STR_P(zvalue));
zend_string_release(Z_STR_P(zvalue));
break;
case IS_ARRAY:
case IS_CONSTANT_AST:
case IS_OBJECT:
case IS_RESOURCE:
zend_error_noreturn(E_CORE_ERROR, "Internal zval's can't be arrays, objects or resources");
break;
case IS_REFERENCE: {
zend_reference *ref = (zend_reference*)Z_REF_P(zvalue);
zval_internal_ptr_dtor(&ref->val);
free(ref);
break;
}
case IS_LONG:
case IS_DOUBLE:
case IS_FALSE:
case IS_TRUE:
case IS_NULL:
default:
break;
}
}
ZEND_API void _zval_internal_dtor_for_ptr(zval *zvalue ZEND_FILE_LINE_DC)
{
switch (Z_TYPE_P(zvalue)) {
case IS_STRING:
CHECK_ZVAL_STRING_REL(Z_STR_P(zvalue));
zend_string_free(Z_STR_P(zvalue));
break;
case IS_ARRAY:
case IS_CONSTANT_AST:
case IS_OBJECT:
case IS_RESOURCE:
zend_error_noreturn(E_CORE_ERROR, "Internal zval's can't be arrays, objects or resources");
break;
case IS_REFERENCE: {
zend_reference *ref = (zend_reference*)Z_REF_P(zvalue);
zval_internal_ptr_dtor(&ref->val);
free(ref);
break;
}
case IS_LONG:
case IS_DOUBLE:
case IS_FALSE:
case IS_TRUE:
case IS_NULL:
default:
break;
}
}
/* This function should only be used as a copy constructor, i.e. it
* should only be called AFTER a zval has been copied to another
* location using ZVAL_COPY_VALUE. Do not call it before copying,
* otherwise a reference may be leaked. */
ZEND_API void zval_add_ref(zval *p)
{
if (Z_REFCOUNTED_P(p)) {
if (Z_ISREF_P(p) && Z_REFCOUNT_P(p) == 1) {
ZVAL_COPY(p, Z_REFVAL_P(p));
} else {
Z_ADDREF_P(p);
}
}
}
ZEND_API void zval_add_ref_unref(zval *p)
{
if (Z_REFCOUNTED_P(p)) {
if (Z_ISREF_P(p)) {
ZVAL_COPY(p, Z_REFVAL_P(p));
} else {
Z_ADDREF_P(p);
}
}
}
ZEND_API void ZEND_FASTCALL _zval_copy_ctor_func(zval *zvalue ZEND_FILE_LINE_DC)
{
if (EXPECTED(Z_TYPE_P(zvalue) == IS_ARRAY)) {
ZVAL_ARR(zvalue, zend_array_dup(Z_ARRVAL_P(zvalue)));
} else if (EXPECTED(Z_TYPE_P(zvalue) == IS_STRING)) {
ZEND_ASSERT(!ZSTR_IS_INTERNED(Z_STR_P(zvalue)));
CHECK_ZVAL_STRING_REL(Z_STR_P(zvalue));
ZVAL_NEW_STR(zvalue, zend_string_dup(Z_STR_P(zvalue), 0));
}
}
ZEND_API size_t zend_print_variable(zval *var)
{
return zend_print_zval(var, 0);
}
ZEND_API void _zval_dtor_wrapper(zval *zvalue)
{
zval_dtor(zvalue);
}
#if ZEND_DEBUG
ZEND_API void _zval_internal_dtor_wrapper(zval *zvalue)
{
zval_internal_dtor(zvalue);
}
ZEND_API void _zval_ptr_dtor_wrapper(zval *zval_ptr)
{
i_zval_ptr_dtor(zval_ptr ZEND_FILE_LINE_CC);
}
ZEND_API void _zval_internal_ptr_dtor_wrapper(zval *zval_ptr)
{
zval_internal_ptr_dtor(zval_ptr);
}
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
|
