root/ext/opcache/zend_accelerator_util_funcs.c
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DEFINITIONS
This source file includes following definitions.
- zend_accel_destroy_zend_function
- zend_accel_destroy_zend_class
- create_persistent_script
- compact_hash_table
- compact_persistent_script
- free_persistent_script
- is_not_internal_function
- zend_accel_free_user_functions
- move_user_function
- zend_accel_move_user_functions
- copy_internal_function
- zend_accel_copy_internal_functions
- zend_destroy_property_info
- zend_clone_zval
- zend_hash_clone_zval
- zend_hash_clone_methods
- zend_hash_clone_prop_info
- zend_prepare_function_for_execution
- zend_class_copy_ctor
- zend_hash_unique_copy
- zend_accel_function_hash_copy
- zend_accel_class_hash_copy
- zend_do_delayed_early_binding
- zend_accel_load_script
- zend_adler32
/*
+----------------------------------------------------------------------+
| Zend OPcache |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2015 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP 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.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
| Stanislav Malyshev <stas@zend.com> |
| Dmitry Stogov <dmitry@zend.com> |
+----------------------------------------------------------------------+
*/
#include "zend_API.h"
#include "zend_constants.h"
#include "zend_accelerator_util_funcs.h"
#include "zend_persist.h"
#include "zend_shared_alloc.h"
#define ZEND_PROTECTED_REFCOUNT (1<<30)
static zend_uint zend_accel_refcount = ZEND_PROTECTED_REFCOUNT;
#if SIZEOF_SIZE_T <= SIZEOF_LONG
/* If sizeof(void*) == sizeof(ulong) we can use zend_hash index functions */
# define accel_xlat_set(old, new) zend_hash_index_update(&ZCG(bind_hash), (ulong)(zend_uintptr_t)(old), &(new), sizeof(void*), NULL)
# define accel_xlat_get(old, new) zend_hash_index_find(&ZCG(bind_hash), (ulong)(zend_uintptr_t)(old), (void**)&(new))
#else
# define accel_xlat_set(old, new) zend_hash_quick_add(&ZCG(bind_hash), (char*)&(old), sizeof(void*), (ulong)(zend_uintptr_t)(old), (void**)&(new), sizeof(void*), NULL)
# define accel_xlat_get(old, new) zend_hash_quick_find(&ZCG(bind_hash), (char*)&(old), sizeof(void*), (ulong)(zend_uintptr_t)(old), (void**)&(new))
#endif
typedef int (*id_function_t)(void *, void *);
typedef void (*unique_copy_ctor_func_t)(void *pElement);
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
static const Bucket *uninitialized_bucket = NULL;
#endif
static int zend_prepare_function_for_execution(zend_op_array *op_array);
static void zend_hash_clone_zval(HashTable *ht, HashTable *source, int bind);
static void zend_accel_destroy_zend_function(zend_function *function)
{
TSRMLS_FETCH();
if (function->type == ZEND_USER_FUNCTION) {
if (function->op_array.static_variables) {
efree(function->op_array.static_variables);
function->op_array.static_variables = NULL;
}
}
destroy_zend_function(function TSRMLS_CC);
}
static void zend_accel_destroy_zend_class(zend_class_entry **pce)
{
zend_class_entry *ce = *pce;
ce->function_table.pDestructor = (dtor_func_t) zend_accel_destroy_zend_function;
destroy_zend_class(pce);
}
zend_persistent_script* create_persistent_script(void)
{
zend_persistent_script *persistent_script = (zend_persistent_script *) emalloc(sizeof(zend_persistent_script));
memset(persistent_script, 0, sizeof(zend_persistent_script));
zend_hash_init(&persistent_script->function_table, 100, NULL, (dtor_func_t) zend_accel_destroy_zend_function, 0);
/* class_table is usually destroyed by free_persistent_script() that
* overrides destructor. ZEND_CLASS_DTOR may be used by standard
* PHP compiler
*/
zend_hash_init(&persistent_script->class_table, 10, NULL, ZEND_CLASS_DTOR, 0);
return persistent_script;
}
static int compact_hash_table(HashTable *ht)
{
uint i = 3;
uint nSize;
Bucket **t;
if (!ht->nNumOfElements) {
/* Empty tables don't allocate space for Buckets */
return 1;
}
if (ht->nNumOfElements >= 0x80000000) {
/* prevent overflow */
nSize = 0x80000000;
} else {
while ((1U << i) < ht->nNumOfElements) {
i++;
}
nSize = 1 << i;
}
if (nSize >= ht->nTableSize) {
/* Keep the size */
return 1;
}
t = (Bucket **)pemalloc(nSize * sizeof(Bucket *), ht->persistent);
if (!t) {
return 0;
}
pefree(ht->arBuckets, ht->persistent);
ht->arBuckets = t;
ht->nTableSize = nSize;
ht->nTableMask = ht->nTableSize - 1;
zend_hash_rehash(ht);
return 1;
}
int compact_persistent_script(zend_persistent_script *persistent_script)
{
return compact_hash_table(&persistent_script->function_table) &&
compact_hash_table(&persistent_script->class_table);
}
void free_persistent_script(zend_persistent_script *persistent_script, int destroy_elements)
{
if (destroy_elements) {
persistent_script->function_table.pDestructor = (dtor_func_t)zend_accel_destroy_zend_function;
persistent_script->class_table.pDestructor = (dtor_func_t)zend_accel_destroy_zend_class;
} else {
persistent_script->function_table.pDestructor = NULL;
persistent_script->class_table.pDestructor = NULL;
}
zend_hash_destroy(&persistent_script->function_table);
zend_hash_destroy(&persistent_script->class_table);
if (persistent_script->full_path) {
efree(persistent_script->full_path);
}
efree(persistent_script);
}
static int is_not_internal_function(zend_function *function)
{
return(function->type != ZEND_INTERNAL_FUNCTION);
}
void zend_accel_free_user_functions(HashTable *ht TSRMLS_DC)
{
dtor_func_t orig_dtor = ht->pDestructor;
ht->pDestructor = NULL;
zend_hash_apply(ht, (apply_func_t) is_not_internal_function TSRMLS_CC);
ht->pDestructor = orig_dtor;
}
static int move_user_function(zend_function *function
#if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO
TSRMLS_DC
#endif
, int num_args, va_list args, zend_hash_key *hash_key)
{
HashTable *function_table = va_arg(args, HashTable *);
(void)num_args; /* keep the compiler happy */
#if ZEND_EXTENSION_API_NO < PHP_5_3_X_API_NO
TSRMLS_FETCH();
#endif
if (function->type == ZEND_USER_FUNCTION) {
zend_hash_quick_update(function_table, hash_key->arKey, hash_key->nKeyLength, hash_key->h, function, sizeof(zend_function), NULL);
return 1;
} else {
return 0;
}
}
void zend_accel_move_user_functions(HashTable *src, HashTable *dst TSRMLS_DC)
{
dtor_func_t orig_dtor = src->pDestructor;
src->pDestructor = NULL;
#if ZEND_EXTENSION_API_NO < PHP_5_3_X_API_NO
zend_hash_apply_with_arguments(src, (apply_func_args_t)move_user_function, 1, dst);
#else
zend_hash_apply_with_arguments(src TSRMLS_CC, (apply_func_args_t)move_user_function, 1, dst);
#endif
src->pDestructor = orig_dtor;
}
static int copy_internal_function(zend_function *function, HashTable *function_table TSRMLS_DC)
{
if (function->type == ZEND_INTERNAL_FUNCTION) {
zend_hash_update(function_table, function->common.function_name, strlen(function->common.function_name) + 1, function, sizeof(zend_function), NULL);
}
return 0;
}
void zend_accel_copy_internal_functions(TSRMLS_D)
{
zend_hash_apply_with_argument(CG(function_table), (apply_func_arg_t)copy_internal_function, &ZCG(function_table) TSRMLS_CC);
ZCG(internal_functions_count) = zend_hash_num_elements(&ZCG(function_table));
}
static void zend_destroy_property_info(zend_property_info *property_info)
{
interned_efree((char*)property_info->name);
if (property_info->doc_comment) {
efree((char*)property_info->doc_comment);
}
}
static inline zval* zend_clone_zval(zval *src, int bind TSRMLS_DC)
{
zval *ret, **ret_ptr = NULL;
if (!bind) {
ALLOC_ZVAL(ret);
*ret = *src;
INIT_PZVAL(ret);
} else if (Z_REFCOUNT_P(src) == 1) {
ALLOC_ZVAL(ret);
*ret = *src;
} else if (accel_xlat_get(src, ret_ptr) != SUCCESS) {
ALLOC_ZVAL(ret);
*ret = *src;
accel_xlat_set(src, ret);
} else {
return *ret_ptr;
}
#if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO
if ((Z_TYPE_P(ret) & IS_CONSTANT_TYPE_MASK) >= IS_ARRAY) {
switch ((Z_TYPE_P(ret) & IS_CONSTANT_TYPE_MASK)) {
#else
if ((Z_TYPE_P(ret) & ~IS_CONSTANT_INDEX) >= IS_ARRAY) {
switch ((Z_TYPE_P(ret) & ~IS_CONSTANT_INDEX)) {
#endif
case IS_STRING:
case IS_CONSTANT:
Z_STRVAL_P(ret) = (char *) interned_estrndup(Z_STRVAL_P(ret), Z_STRLEN_P(ret));
break;
case IS_ARRAY:
case IS_CONSTANT_ARRAY:
if (ret->value.ht && ret->value.ht != &EG(symbol_table)) {
ALLOC_HASHTABLE(ret->value.ht);
zend_hash_clone_zval(ret->value.ht, src->value.ht, 0);
}
break;
}
}
return ret;
}
static void zend_hash_clone_zval(HashTable *ht, HashTable *source, int bind)
{
Bucket *p, *q, **prev;
ulong nIndex;
zval *ppz;
TSRMLS_FETCH();
ht->nTableSize = source->nTableSize;
ht->nTableMask = source->nTableMask;
ht->nNumOfElements = source->nNumOfElements;
ht->nNextFreeElement = source->nNextFreeElement;
ht->pDestructor = ZVAL_PTR_DTOR;
#if ZEND_DEBUG
ht->inconsistent = 0;
#endif
ht->persistent = 0;
ht->arBuckets = NULL;
ht->pListHead = NULL;
ht->pListTail = NULL;
ht->pInternalPointer = NULL;
ht->nApplyCount = 0;
ht->bApplyProtection = 1;
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
if (!ht->nTableMask) {
ht->arBuckets = (Bucket**)&uninitialized_bucket;
return;
}
#endif
ht->arBuckets = (Bucket **) ecalloc(ht->nTableSize, sizeof(Bucket *));
prev = &ht->pListHead;
p = source->pListHead;
while (p) {
nIndex = p->h & ht->nTableMask;
/* Create bucket and initialize key */
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
if (!p->nKeyLength) {
q = (Bucket *) emalloc(sizeof(Bucket));
q->arKey = NULL;
} else if (IS_INTERNED(p->arKey)) {
q = (Bucket *) emalloc(sizeof(Bucket));
q->arKey = p->arKey;
} else {
q = (Bucket *) emalloc(sizeof(Bucket) + p->nKeyLength);
q->arKey = ((char*)q) + sizeof(Bucket);
memcpy((char*)q->arKey, p->arKey, p->nKeyLength);
}
#else
q = (Bucket *) emalloc(sizeof(Bucket) - 1 + p->nKeyLength);
if (p->nKeyLength) {
memcpy(q->arKey, p->arKey, p->nKeyLength);
}
#endif
q->h = p->h;
q->nKeyLength = p->nKeyLength;
/* Insert into hash collision list */
q->pNext = ht->arBuckets[nIndex];
q->pLast = NULL;
if (q->pNext) {
q->pNext->pLast = q;
}
ht->arBuckets[nIndex] = q;
/* Insert into global list */
q->pListLast = ht->pListTail;
ht->pListTail = q;
q->pListNext = NULL;
*prev = q;
prev = &q->pListNext;
/* Copy data */
q->pData = &q->pDataPtr;
if (!bind) {
ALLOC_ZVAL(ppz);
*ppz = *((zval*)p->pDataPtr);
INIT_PZVAL(ppz);
} else if (Z_REFCOUNT_P((zval*)p->pDataPtr) == 1) {
ALLOC_ZVAL(ppz);
*ppz = *((zval*)p->pDataPtr);
} else if (accel_xlat_get(p->pDataPtr, ppz) != SUCCESS) {
ALLOC_ZVAL(ppz);
*ppz = *((zval*)p->pDataPtr);
accel_xlat_set(p->pDataPtr, ppz);
} else {
q->pDataPtr = *(void**)ppz;
p = p->pListNext;
continue;
}
q->pDataPtr = (void*)ppz;
#if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO
if ((Z_TYPE_P((zval*)p->pDataPtr) & IS_CONSTANT_TYPE_MASK) >= IS_ARRAY) {
switch ((Z_TYPE_P((zval*)p->pDataPtr) & IS_CONSTANT_TYPE_MASK)) {
#else
if ((Z_TYPE_P((zval*)p->pDataPtr) & ~IS_CONSTANT_INDEX) >= IS_ARRAY) {
switch ((Z_TYPE_P((zval*)p->pDataPtr) & ~IS_CONSTANT_INDEX)) {
#endif
case IS_STRING:
case IS_CONSTANT:
Z_STRVAL_P(ppz) = (char *) interned_estrndup(Z_STRVAL_P((zval*)p->pDataPtr), Z_STRLEN_P((zval*)p->pDataPtr));
break;
case IS_ARRAY:
case IS_CONSTANT_ARRAY:
if (((zval*)p->pDataPtr)->value.ht && ((zval*)p->pDataPtr)->value.ht != &EG(symbol_table)) {
ALLOC_HASHTABLE(ppz->value.ht);
zend_hash_clone_zval(ppz->value.ht, ((zval*)p->pDataPtr)->value.ht, 0);
}
break;
}
}
p = p->pListNext;
}
ht->pInternalPointer = ht->pListHead;
}
static void zend_hash_clone_methods(HashTable *ht, HashTable *source, zend_class_entry *old_ce, zend_class_entry *ce TSRMLS_DC)
{
Bucket *p, *q, **prev;
ulong nIndex;
zend_class_entry **new_ce;
zend_function** new_prototype;
zend_op_array *new_entry;
ht->nTableSize = source->nTableSize;
ht->nTableMask = source->nTableMask;
ht->nNumOfElements = source->nNumOfElements;
ht->nNextFreeElement = source->nNextFreeElement;
ht->pDestructor = ZEND_FUNCTION_DTOR;
#if ZEND_DEBUG
ht->inconsistent = 0;
#endif
ht->persistent = 0;
ht->pListHead = NULL;
ht->pListTail = NULL;
ht->pInternalPointer = NULL;
ht->nApplyCount = 0;
ht->bApplyProtection = 1;
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
if (!ht->nTableMask) {
ht->arBuckets = (Bucket**)&uninitialized_bucket;
return;
}
#endif
ht->arBuckets = (Bucket **) ecalloc(ht->nTableSize, sizeof(Bucket *));
prev = &ht->pListHead;
p = source->pListHead;
while (p) {
nIndex = p->h & ht->nTableMask;
/* Create bucket and initialize key */
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
if (!p->nKeyLength) {
q = (Bucket *) emalloc(sizeof(Bucket));
q->arKey = NULL;
} else if (IS_INTERNED(p->arKey)) {
q = (Bucket *) emalloc(sizeof(Bucket));
q->arKey = p->arKey;
} else {
q = (Bucket *) emalloc(sizeof(Bucket) + p->nKeyLength);
q->arKey = ((char*)q) + sizeof(Bucket);
memcpy((char*)q->arKey, p->arKey, p->nKeyLength);
}
#else
q = (Bucket *) emalloc(sizeof(Bucket) - 1 + p->nKeyLength);
if (p->nKeyLength) {
memcpy(q->arKey, p->arKey, p->nKeyLength);
}
#endif
q->h = p->h;
q->nKeyLength = p->nKeyLength;
/* Insert into hash collision list */
q->pNext = ht->arBuckets[nIndex];
q->pLast = NULL;
if (q->pNext) {
q->pNext->pLast = q;
}
ht->arBuckets[nIndex] = q;
/* Insert into global list */
q->pListLast = ht->pListTail;
ht->pListTail = q;
q->pListNext = NULL;
*prev = q;
prev = &q->pListNext;
/* Copy data */
q->pData = (void *) emalloc(sizeof(zend_function));
new_entry = (zend_op_array*)q->pData;
*new_entry = *(zend_op_array*)p->pData;
q->pDataPtr = NULL;
/* Copy constructor */
/* we use refcount to show that op_array is referenced from several places */
if (new_entry->refcount != NULL) {
accel_xlat_set(p->pData, new_entry);
}
zend_prepare_function_for_execution(new_entry);
if (old_ce == new_entry->scope) {
new_entry->scope = ce;
} else {
if (accel_xlat_get(new_entry->scope, new_ce) == SUCCESS) {
new_entry->scope = *new_ce;
} else {
zend_error(E_ERROR, ACCELERATOR_PRODUCT_NAME " class loading error, class %s, function %s", ce->name, new_entry->function_name);
}
}
/* update prototype */
if (new_entry->prototype) {
if (accel_xlat_get(new_entry->prototype, new_prototype) == SUCCESS) {
new_entry->prototype = *new_prototype;
} else {
zend_error(E_ERROR, ACCELERATOR_PRODUCT_NAME " class loading error, class %s, function %s", ce->name, new_entry->function_name);
}
}
p = p->pListNext;
}
ht->pInternalPointer = ht->pListHead;
}
static void zend_hash_clone_prop_info(HashTable *ht, HashTable *source, zend_class_entry *old_ce, zend_class_entry *ce TSRMLS_DC)
{
Bucket *p, *q, **prev;
ulong nIndex;
zend_class_entry **new_ce;
zend_property_info *prop_info;
ht->nTableSize = source->nTableSize;
ht->nTableMask = source->nTableMask;
ht->nNumOfElements = source->nNumOfElements;
ht->nNextFreeElement = source->nNextFreeElement;
ht->pDestructor = (dtor_func_t) zend_destroy_property_info;
#if ZEND_DEBUG
ht->inconsistent = 0;
#endif
ht->persistent = 0;
ht->pListHead = NULL;
ht->pListTail = NULL;
ht->pInternalPointer = NULL;
ht->nApplyCount = 0;
ht->bApplyProtection = 1;
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
if (!ht->nTableMask) {
ht->arBuckets = (Bucket**)&uninitialized_bucket;
return;
}
#endif
ht->arBuckets = (Bucket **) ecalloc(ht->nTableSize, sizeof(Bucket *));
prev = &ht->pListHead;
p = source->pListHead;
while (p) {
nIndex = p->h & ht->nTableMask;
/* Create bucket and initialize key */
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
if (!p->nKeyLength) {
q = (Bucket *) emalloc(sizeof(Bucket));
q->arKey = NULL;
} else if (IS_INTERNED(p->arKey)) {
q = (Bucket *) emalloc(sizeof(Bucket));
q->arKey = p->arKey;
} else {
q = (Bucket *) emalloc(sizeof(Bucket) + p->nKeyLength);
q->arKey = ((char*)q) + sizeof(Bucket);
memcpy((char*)q->arKey, p->arKey, p->nKeyLength);
}
#else
q = (Bucket *) emalloc(sizeof(Bucket) - 1 + p->nKeyLength);
if (p->nKeyLength) {
memcpy(q->arKey, p->arKey, p->nKeyLength);
}
#endif
q->h = p->h;
q->nKeyLength = p->nKeyLength;
/* Insert into hash collision list */
q->pNext = ht->arBuckets[nIndex];
q->pLast = NULL;
if (q->pNext) {
q->pNext->pLast = q;
}
ht->arBuckets[nIndex] = q;
/* Insert into global list */
q->pListLast = ht->pListTail;
ht->pListTail = q;
q->pListNext = NULL;
*prev = q;
prev = &q->pListNext;
/* Copy data */
q->pData = (void *) emalloc(sizeof(zend_property_info));
prop_info = q->pData;
*prop_info = *(zend_property_info*)p->pData;
q->pDataPtr = NULL;
/* Copy constructor */
prop_info->name = interned_estrndup(prop_info->name, prop_info->name_length);
if (prop_info->doc_comment) {
if (ZCG(accel_directives).load_comments) {
prop_info->doc_comment = estrndup(prop_info->doc_comment, prop_info->doc_comment_len);
} else {
prop_info->doc_comment = NULL;
}
}
if (prop_info->ce == old_ce) {
prop_info->ce = ce;
} else if (accel_xlat_get(prop_info->ce, new_ce) == SUCCESS) {
prop_info->ce = *new_ce;
} else {
zend_error(E_ERROR, ACCELERATOR_PRODUCT_NAME" class loading error, class %s, property %s", ce->name, prop_info->name);
}
p = p->pListNext;
}
ht->pInternalPointer = ht->pListHead;
}
/* protects reference count, creates copy of statics */
static int zend_prepare_function_for_execution(zend_op_array *op_array)
{
HashTable *shared_statics = op_array->static_variables;
/* protect reference count */
op_array->refcount = &zend_accel_refcount;
(*op_array->refcount) = ZEND_PROTECTED_REFCOUNT;
/* copy statics */
if (shared_statics) {
ALLOC_HASHTABLE(op_array->static_variables);
zend_hash_clone_zval(op_array->static_variables, shared_statics, 0);
}
return 0;
}
#define zend_update_inherited_handler(handler) \
{ \
if (ce->handler != NULL) { \
if (accel_xlat_get(ce->handler, new_func) == SUCCESS) { \
ce->handler = *new_func; \
} else { \
zend_error(E_ERROR, ACCELERATOR_PRODUCT_NAME " class loading error, class %s", ce->name); \
} \
} \
}
/* Protects class' refcount, copies default properties, functions and class name */
static void zend_class_copy_ctor(zend_class_entry **pce)
{
zend_class_entry *ce = *pce;
zend_class_entry *old_ce = ce;
zend_class_entry **new_ce;
zend_function **new_func;
TSRMLS_FETCH();
*pce = ce = emalloc(sizeof(zend_class_entry));
*ce = *old_ce;
ce->refcount = 1;
if (old_ce->refcount != 1) {
/* this class is not used as a parent for any other classes */
accel_xlat_set(old_ce, ce);
}
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
if (old_ce->default_properties_table) {
int i;
ce->default_properties_table = emalloc(sizeof(zval*) * old_ce->default_properties_count);
for (i = 0; i < old_ce->default_properties_count; i++) {
if (old_ce->default_properties_table[i]) {
ce->default_properties_table[i] = zend_clone_zval(old_ce->default_properties_table[i], 0 TSRMLS_CC);
} else {
ce->default_properties_table[i] = NULL;
}
}
}
#else
zend_hash_clone_zval(&ce->default_properties, &old_ce->default_properties, 0);
#endif
zend_hash_clone_methods(&ce->function_table, &old_ce->function_table, old_ce, ce TSRMLS_CC);
/* static members */
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
if (old_ce->default_static_members_table) {
int i;
ce->default_static_members_table = emalloc(sizeof(zval*) * old_ce->default_static_members_count);
for (i = 0; i < old_ce->default_static_members_count; i++) {
if (old_ce->default_static_members_table[i]) {
ce->default_static_members_table[i] = zend_clone_zval(old_ce->default_static_members_table[i], 1 TSRMLS_CC);
} else {
ce->default_static_members_table[i] = NULL;
}
}
}
ce->static_members_table = ce->default_static_members_table;
#else
zend_hash_clone_zval(&ce->default_static_members, &old_ce->default_static_members, 1);
ce->static_members = &ce->default_static_members;
#endif
/* properties_info */
zend_hash_clone_prop_info(&ce->properties_info, &old_ce->properties_info, old_ce, ce TSRMLS_CC);
/* constants table */
zend_hash_clone_zval(&ce->constants_table, &old_ce->constants_table, 0);
ce->name = interned_estrndup(ce->name, ce->name_length);
/* interfaces aren't really implemented, so we create a new table */
if (ce->num_interfaces) {
ce->interfaces = emalloc(sizeof(zend_class_entry *) * ce->num_interfaces);
memset(ce->interfaces, 0, sizeof(zend_class_entry *) * ce->num_interfaces);
} else {
ce->interfaces = NULL;
}
if (ZEND_CE_DOC_COMMENT(ce)) {
if (ZCG(accel_directives).load_comments) {
ZEND_CE_DOC_COMMENT(ce) = estrndup(ZEND_CE_DOC_COMMENT(ce), ZEND_CE_DOC_COMMENT_LEN(ce));
} else {
ZEND_CE_DOC_COMMENT(ce) = NULL;
}
}
if (ce->parent) {
if (accel_xlat_get(ce->parent, new_ce) == SUCCESS) {
ce->parent = *new_ce;
} else {
zend_error(E_ERROR, ACCELERATOR_PRODUCT_NAME" class loading error, class %s", ce->name);
}
}
zend_update_inherited_handler(constructor);
zend_update_inherited_handler(destructor);
zend_update_inherited_handler(clone);
zend_update_inherited_handler(__get);
zend_update_inherited_handler(__set);
zend_update_inherited_handler(__call);
/* 5.1 stuff */
zend_update_inherited_handler(serialize_func);
zend_update_inherited_handler(unserialize_func);
zend_update_inherited_handler(__isset);
zend_update_inherited_handler(__unset);
/* 5.2 stuff */
zend_update_inherited_handler(__tostring);
#if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO
/* 5.3 stuff */
zend_update_inherited_handler(__callstatic);
#endif
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
/* 5.4 traits */
if (ce->trait_aliases) {
zend_trait_alias **trait_aliases;
int i = 0;
while (ce->trait_aliases[i]) {
i++;
}
trait_aliases = emalloc(sizeof(zend_trait_alias*) * (i + 1));
i = 0;
while (ce->trait_aliases[i]) {
trait_aliases[i] = emalloc(sizeof(zend_trait_alias));
memcpy(trait_aliases[i], ce->trait_aliases[i], sizeof(zend_trait_alias));
trait_aliases[i]->trait_method = emalloc(sizeof(zend_trait_method_reference));
memcpy(trait_aliases[i]->trait_method, ce->trait_aliases[i]->trait_method, sizeof(zend_trait_method_reference));
if (trait_aliases[i]->trait_method) {
if (trait_aliases[i]->trait_method->method_name) {
trait_aliases[i]->trait_method->method_name =
estrndup(trait_aliases[i]->trait_method->method_name,
trait_aliases[i]->trait_method->mname_len);
}
if (trait_aliases[i]->trait_method->class_name) {
trait_aliases[i]->trait_method->class_name =
estrndup(trait_aliases[i]->trait_method->class_name,
trait_aliases[i]->trait_method->cname_len);
}
}
if (trait_aliases[i]->alias) {
trait_aliases[i]->alias =
estrndup(trait_aliases[i]->alias,
trait_aliases[i]->alias_len);
}
i++;
}
trait_aliases[i] = NULL;
ce->trait_aliases = trait_aliases;
}
if (ce->trait_precedences) {
zend_trait_precedence **trait_precedences;
int i = 0;
while (ce->trait_precedences[i]) {
i++;
}
trait_precedences = emalloc(sizeof(zend_trait_precedence*) * (i + 1));
i = 0;
while (ce->trait_precedences[i]) {
trait_precedences[i] = emalloc(sizeof(zend_trait_precedence));
memcpy(trait_precedences[i], ce->trait_precedences[i], sizeof(zend_trait_precedence));
trait_precedences[i]->trait_method = emalloc(sizeof(zend_trait_method_reference));
memcpy(trait_precedences[i]->trait_method, ce->trait_precedences[i]->trait_method, sizeof(zend_trait_method_reference));
trait_precedences[i]->trait_method->method_name =
estrndup(trait_precedences[i]->trait_method->method_name,
trait_precedences[i]->trait_method->mname_len);
trait_precedences[i]->trait_method->class_name =
estrndup(trait_precedences[i]->trait_method->class_name,
trait_precedences[i]->trait_method->cname_len);
if (trait_precedences[i]->exclude_from_classes) {
zend_class_entry **exclude_from_classes;
int j = 0;
while (trait_precedences[i]->exclude_from_classes[j]) {
j++;
}
exclude_from_classes = emalloc(sizeof(zend_class_entry*) * (j + 1));
j = 0;
while (trait_precedences[i]->exclude_from_classes[j]) {
exclude_from_classes[j] = (zend_class_entry*)estrndup(
(char*)trait_precedences[i]->exclude_from_classes[j],
strlen((char*)trait_precedences[i]->exclude_from_classes[j]));
j++;
}
exclude_from_classes[j] = NULL;
trait_precedences[i]->exclude_from_classes = exclude_from_classes;
}
i++;
}
trait_precedences[i] = NULL;
ce->trait_precedences = trait_precedences;
}
#endif
}
static int zend_hash_unique_copy(HashTable *target, HashTable *source, unique_copy_ctor_func_t pCopyConstructor, uint size, int ignore_dups, void **fail_data, void **conflict_data)
{
Bucket *p;
void *t;
p = source->pListHead;
while (p) {
if (p->nKeyLength > 0) {
if (zend_hash_quick_add(target, p->arKey, p->nKeyLength, p->h, p->pData, size, &t) == SUCCESS) {
if (pCopyConstructor) {
pCopyConstructor(t);
}
} else {
if (p->nKeyLength > 0 && p->arKey[0] == 0) {
/* Mangled key */
#if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO
if (zend_hash_quick_update(target, p->arKey, p->nKeyLength, p->h, p->pData, size, &t) == SUCCESS) {
if (pCopyConstructor) {
pCopyConstructor(t);
}
}
#endif
} else if (!ignore_dups && zend_hash_quick_find(target, p->arKey, p->nKeyLength, p->h, &t) == SUCCESS) {
*fail_data = p->pData;
*conflict_data = t;
return FAILURE;
}
}
} else {
if (!zend_hash_index_exists(target, p->h) && zend_hash_index_update(target, p->h, p->pData, size, &t) == SUCCESS) {
if (pCopyConstructor) {
pCopyConstructor(t);
}
} else if (!ignore_dups && zend_hash_index_find(target,p->h, &t) == SUCCESS) {
*fail_data = p->pData;
*conflict_data = t;
return FAILURE;
}
}
p = p->pListNext;
}
target->pInternalPointer = target->pListHead;
return SUCCESS;
}
static void zend_accel_function_hash_copy(HashTable *target, HashTable *source, unique_copy_ctor_func_t pCopyConstructor)
{
zend_function *function1, *function2;
TSRMLS_FETCH();
if (zend_hash_unique_copy(target, source, pCopyConstructor, sizeof(zend_function), 0, (void**)&function1, (void**)&function2) != SUCCESS) {
CG(in_compilation) = 1;
zend_set_compiled_filename(function1->op_array.filename TSRMLS_CC);
CG(zend_lineno) = function1->op_array.opcodes[0].lineno;
if (function2->type == ZEND_USER_FUNCTION
&& function2->op_array.last > 0) {
zend_error(E_ERROR, "Cannot redeclare %s() (previously declared in %s:%d)",
function1->common.function_name,
function2->op_array.filename,
(int)function2->op_array.opcodes[0].lineno);
} else {
zend_error(E_ERROR, "Cannot redeclare %s()", function1->common.function_name);
}
}
}
static void zend_accel_class_hash_copy(HashTable *target, HashTable *source, unique_copy_ctor_func_t pCopyConstructor TSRMLS_DC)
{
zend_class_entry **pce1, **pce2;
if (zend_hash_unique_copy(target, source, pCopyConstructor, sizeof(zend_class_entry*), ZCG(accel_directives).ignore_dups, (void**)&pce1, (void**)&pce2) != SUCCESS) {
CG(in_compilation) = 1;
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
zend_set_compiled_filename((*pce1)->info.user.filename TSRMLS_CC);
CG(zend_lineno) = (*pce1)->info.user.line_start;
#else
zend_set_compiled_filename((*pce1)->filename TSRMLS_CC);
CG(zend_lineno) = (*pce1)->line_start;
#endif
zend_error(E_ERROR, "Cannot redeclare class %s", (*pce1)->name);
}
}
#if ZEND_EXTENSION_API_NO < PHP_5_3_X_API_NO
static void zend_do_delayed_early_binding(zend_op_array *op_array, zend_uint early_binding TSRMLS_DC)
{
zend_uint opline_num = early_binding;
if ((int)opline_num != -1) {
zend_bool orig_in_compilation = CG(in_compilation);
char *orig_compiled_filename = zend_set_compiled_filename(op_array->filename TSRMLS_CC);
zend_class_entry **pce;
CG(in_compilation) = 1;
while ((int)opline_num != -1) {
if (zend_lookup_class(Z_STRVAL(op_array->opcodes[opline_num - 1].op2.u.constant), Z_STRLEN(op_array->opcodes[opline_num - 1].op2.u.constant), &pce TSRMLS_CC) == SUCCESS) {
do_bind_inherited_class(&op_array->opcodes[opline_num], EG(class_table), *pce, 1 TSRMLS_CC);
}
opline_num = op_array->opcodes[opline_num].result.u.opline_num;
}
zend_restore_compiled_filename(orig_compiled_filename TSRMLS_CC);
CG(in_compilation) = orig_in_compilation;
}
}
#endif
zend_op_array* zend_accel_load_script(zend_persistent_script *persistent_script, int from_shared_memory TSRMLS_DC)
{
zend_op_array *op_array;
op_array = (zend_op_array *) emalloc(sizeof(zend_op_array));
*op_array = persistent_script->main_op_array;
if (from_shared_memory) {
/* Copy all the necessary stuff from shared memory to regular memory, and protect the shared script */
if (zend_hash_num_elements(&persistent_script->class_table) > 0) {
zend_hash_init(&ZCG(bind_hash), 10, NULL, NULL, 0);
zend_accel_class_hash_copy(CG(class_table), &persistent_script->class_table, (unique_copy_ctor_func_t) zend_class_copy_ctor TSRMLS_CC);
zend_hash_destroy(&ZCG(bind_hash));
}
/* we must first to copy all classes and then prepare functions, since functions may try to bind
classes - which depend on pre-bind class entries existent in the class table */
if (zend_hash_num_elements(&persistent_script->function_table) > 0) {
zend_accel_function_hash_copy(CG(function_table), &persistent_script->function_table, (unique_copy_ctor_func_t)zend_prepare_function_for_execution);
}
zend_prepare_function_for_execution(op_array);
/* Register __COMPILER_HALT_OFFSET__ constant */
if (persistent_script->compiler_halt_offset != 0 &&
persistent_script->full_path) {
char *name, *cfilename;
char haltoff[] = "__COMPILER_HALT_OFFSET__";
int len, clen;
cfilename = persistent_script->full_path;
clen = strlen(cfilename);
zend_mangle_property_name(&name, &len, haltoff, sizeof(haltoff) - 1, cfilename, clen, 0);
if (!zend_hash_exists(EG(zend_constants), name, len + 1)) {
zend_register_long_constant(name, len + 1, persistent_script->compiler_halt_offset, CONST_CS, 0 TSRMLS_CC);
}
efree(name);
}
#if ZEND_EXTENSION_API_NO < PHP_5_3_X_API_NO
if ((int)persistent_script->early_binding != -1) {
zend_do_delayed_early_binding(op_array, persistent_script->early_binding TSRMLS_CC);
}
#endif
} else /* if (!from_shared_memory) */ {
if (zend_hash_num_elements(&persistent_script->function_table) > 0) {
zend_accel_function_hash_copy(CG(function_table), &persistent_script->function_table, NULL);
}
if (zend_hash_num_elements(&persistent_script->class_table) > 0) {
zend_accel_class_hash_copy(CG(class_table), &persistent_script->class_table, NULL TSRMLS_CC);
}
}
#if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO
if (op_array->early_binding != (zend_uint)-1) {
char *orig_compiled_filename = CG(compiled_filename);
CG(compiled_filename) = persistent_script->full_path;
zend_do_delayed_early_binding(op_array TSRMLS_CC);
CG(compiled_filename) = orig_compiled_filename;
}
#endif
if (!from_shared_memory) {
free_persistent_script(persistent_script, 0); /* free only hashes */
}
return op_array;
}
/*
* zend_adler32() is based on zlib implementation
* Computes the Adler-32 checksum of a data stream
*
* Copyright (C) 1995-2005 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*
* Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*
*/
#define ADLER32_BASE 65521 /* largest prime smaller than 65536 */
#define ADLER32_NMAX 5552
/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
#define ADLER32_DO1(buf) {s1 += *(buf); s2 += s1;}
#define ADLER32_DO2(buf, i) ADLER32_DO1(buf + i); ADLER32_DO1(buf + i + 1);
#define ADLER32_DO4(buf, i) ADLER32_DO2(buf, i); ADLER32_DO2(buf, i + 2);
#define ADLER32_DO8(buf, i) ADLER32_DO4(buf, i); ADLER32_DO4(buf, i + 4);
#define ADLER32_DO16(buf) ADLER32_DO8(buf, 0); ADLER32_DO8(buf, 8);
unsigned int zend_adler32(unsigned int checksum, signed char *buf, uint len)
{
unsigned int s1 = checksum & 0xffff;
unsigned int s2 = (checksum >> 16) & 0xffff;
signed char *end;
while (len >= ADLER32_NMAX) {
len -= ADLER32_NMAX;
end = buf + ADLER32_NMAX;
do {
ADLER32_DO16(buf);
buf += 16;
} while (buf != end);
s1 %= ADLER32_BASE;
s2 %= ADLER32_BASE;
}
if (len) {
if (len >= 16) {
end = buf + (len & 0xfff0);
len &= 0xf;
do {
ADLER32_DO16(buf);
buf += 16;
} while (buf != end);
}
if (len) {
end = buf + len;
do {
ADLER32_DO1(buf);
buf++;
} while (buf != end);
}
s1 %= ADLER32_BASE;
s2 %= ADLER32_BASE;
}
return (s2 << 16) | s1;
}