PAL.C.T MINI SHELL
/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2015 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"
ZEND_API void ZEND_FASTCALL _zval_dtor_func(zend_refcounted *p ZEND_FILE_LINE_DC)
{
switch (GC_TYPE(p)) {
case IS_STRING:
case IS_CONSTANT: {
zend_string *str = (zend_string*)p;
CHECK_ZVAL_STRING_REL(str);
zend_string_release(str);
break;
}
case IS_ARRAY: {
zend_array *arr = (zend_array*)p;
ZEND_ASSERT(GC_REFCOUNT(arr) <= 1);
zend_array_destroy(arr);
break;
}
case IS_CONSTANT_AST: {
zend_ast_ref *ast = (zend_ast_ref*)p;
zend_ast_destroy_and_free(ast->ast);
efree_size(ast, sizeof(zend_ast_ref));
break;
}
case IS_OBJECT: {
zend_object *obj = (zend_object*)p;
OBJ_RELEASE(obj);
break;
}
case IS_RESOURCE: {
zend_resource *res = (zend_resource*)p;
if (--GC_REFCOUNT(res) == 0) {
/* destroy resource */
zend_list_free(res);
}
break;
}
case IS_REFERENCE: {
zend_reference *ref = (zend_reference*)p;
if (--GC_REFCOUNT(ref) == 0) {
i_zval_ptr_dtor(&ref->val ZEND_FILE_LINE_RELAY_CC);
efree_size(ref, sizeof(zend_reference));
}
break;
}
default:
break;
}
}
ZEND_API void ZEND_FASTCALL _zval_dtor_func_for_ptr(zend_refcounted *p ZEND_FILE_LINE_DC)
{
switch (GC_TYPE(p)) {
case IS_STRING:
case IS_CONSTANT: {
zend_string *str = (zend_string*)p;
CHECK_ZVAL_STRING_REL(str);
zend_string_free(str);
break;
}
case IS_ARRAY: {
zend_array *arr = (zend_array*)p;
zend_array_destroy(arr);
break;
}
case IS_CONSTANT_AST: {
zend_ast_ref *ast = (zend_ast_ref*)p;
zend_ast_destroy_and_free(ast->ast);
efree_size(ast, sizeof(zend_ast_ref));
break;
}
case IS_OBJECT: {
zend_object *obj = (zend_object*)p;
zend_objects_store_del(obj);
break;
}
case IS_RESOURCE: {
zend_resource *res = (zend_resource*)p;
/* destroy resource */
zend_list_free(res);
break;
}
case IS_REFERENCE: {
zend_reference *ref = (zend_reference*)p;
i_zval_ptr_dtor(&ref->val ZEND_FILE_LINE_RELAY_CC);
efree_size(ref, sizeof(zend_reference));
break;
}
default:
break;
}
}
ZEND_API void _zval_internal_dtor(zval *zvalue ZEND_FILE_LINE_DC)
{
switch (Z_TYPE_P(zvalue)) {
case IS_STRING:
case IS_CONSTANT:
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:
case IS_CONSTANT:
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) ||
EXPECTED(Z_TYPE_P(zvalue) == IS_CONSTANT)) {
CHECK_ZVAL_STRING_REL(Z_STR_P(zvalue));
Z_STR_P(zvalue) = zend_string_dup(Z_STR_P(zvalue), 0);
} else if (EXPECTED(Z_TYPE_P(zvalue) == IS_CONSTANT_AST)) {
zend_ast_ref *ast = emalloc(sizeof(zend_ast_ref));
GC_REFCOUNT(ast) = 1;
GC_TYPE_INFO(ast) = IS_CONSTANT_AST;
ast->ast = zend_ast_copy(Z_ASTVAL_P(zvalue));
Z_AST_P(zvalue) = ast;
}
}
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
ZEND_API int zval_copy_static_var(zval *p, int num_args, va_list args, zend_hash_key *key) /* {{{ */
{
zend_array *symbol_table;
HashTable *target = va_arg(args, HashTable*);
zend_bool is_ref;
zval tmp;
if (Z_CONST_FLAGS_P(p) & (IS_LEXICAL_VAR|IS_LEXICAL_REF)) {
is_ref = Z_CONST_FLAGS_P(p) & IS_LEXICAL_REF;
symbol_table = zend_rebuild_symbol_table();
p = zend_hash_find(symbol_table, key->key);
if (!p) {
p = &tmp;
ZVAL_NULL(&tmp);
if (is_ref) {
ZVAL_NEW_REF(&tmp, &tmp);
zend_hash_add_new(symbol_table, key->key, &tmp);
Z_ADDREF_P(p);
} else {
zend_error(E_NOTICE,"Undefined variable: %s", ZSTR_VAL(key->key));
}
} else {
if (Z_TYPE_P(p) == IS_INDIRECT) {
p = Z_INDIRECT_P(p);
if (Z_TYPE_P(p) == IS_UNDEF) {
if (!is_ref) {
zend_error(E_NOTICE,"Undefined variable: %s", ZSTR_VAL(key->key));
p = &tmp;
ZVAL_NULL(&tmp);
} else {
ZVAL_NULL(p);
}
}
}
if (is_ref) {
ZVAL_MAKE_REF(p);
Z_ADDREF_P(p);
} else if (Z_ISREF_P(p)) {
ZVAL_DUP(&tmp, Z_REFVAL_P(p));
p = &tmp;
} else if (Z_REFCOUNTED_P(p)) {
Z_ADDREF_P(p);
}
}
} else if (Z_REFCOUNTED_P(p)) {
Z_ADDREF_P(p);
}
zend_hash_add(target, key->key, p);
return ZEND_HASH_APPLY_KEEP;
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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