root/ext/opcache/zend_persist.c

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DEFINITIONS

This source file includes following definitions.
  1. zend_hash_persist
  2. zend_persist_ast
  3. zend_persist_zval
  4. zend_persist_zval_ptr
  5. zend_protect_zval
  6. zend_persist_op_array_ex
  7. zend_persist_op_array
  8. zend_persist_property_info
  9. zend_persist_class_entry
  10. zend_update_property_info_ce
  11. zend_update_parent_ce
  12. zend_accel_persist_class_table
  13. zend_accel_script_persist
  14. zend_accel_script_persistable

/*
   +----------------------------------------------------------------------+
   | 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.h"
#include "ZendAccelerator.h"
#include "zend_persist.h"
#include "zend_extensions.h"
#include "zend_shared_alloc.h"
#include "zend_vm.h"
#include "zend_constants.h"
#include "zend_operators.h"

#define zend_accel_store(p, size) \
            (p = _zend_shared_memdup((void*)p, size, 1 TSRMLS_CC))
#define zend_accel_memdup(p, size) \
            _zend_shared_memdup((void*)p, size, 0 TSRMLS_CC)

#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
# define zend_accel_memdup_interned_string(str, len) \
        IS_INTERNED(str) ? str : zend_accel_memdup(str, len)

# define zend_accel_store_interned_string(str, len) do { \
                if (!IS_INTERNED(str)) { zend_accel_store(str, len); } \
        } while (0)
#else
# define zend_accel_memdup_interned_string(str, len) \
        zend_accel_memdup(str, len)

# define zend_accel_store_interned_string(str, len) \
        zend_accel_store(str, len)
#endif

typedef void (*zend_persist_func_t)(void * TSRMLS_DC);

static void zend_persist_zval_ptr(zval **zp TSRMLS_DC);
static void zend_persist_zval(zval *z TSRMLS_DC);

#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
static const Bucket *uninitialized_bucket = NULL;
#endif

static void zend_hash_persist(HashTable *ht, void (*pPersistElement)(void *pElement TSRMLS_DC), size_t el_size TSRMLS_DC)
{
        Bucket *p = ht->pListHead;
        uint i;

        while (p) {
                Bucket *q = p;

                /* persist bucket and key */
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
                p = zend_accel_memdup(p, sizeof(Bucket));
                if (p->nKeyLength) {
                        p->arKey = zend_accel_memdup_interned_string(p->arKey, p->nKeyLength);
                }
#else
                p = zend_accel_memdup(p, sizeof(Bucket) - 1 + p->nKeyLength);
#endif

                /* persist data pointer in bucket */
                if (!p->pDataPtr) {
                        zend_accel_store(p->pData, el_size);
                } else {
                        /* Update p->pData to point to the new p->pDataPtr address, after the bucket relocation */
                        p->pData = &p->pDataPtr;
                }

                /* persist the data itself */
                if (pPersistElement) {
                        pPersistElement(p->pData TSRMLS_CC);
                }

                /* update linked lists */
                if (p->pLast) {
                        p->pLast->pNext = p;
                }
                if (p->pNext) {
                        p->pNext->pLast = p;
                }
                if (p->pListLast) {
                        p->pListLast->pListNext = p;
                }
                if (p->pListNext) {
                        p->pListNext->pListLast = p;
                }

                p = p->pListNext;

                /* delete the old non-persistent bucket */
                efree(q);
        }

        /* update linked lists */
        if (ht->pListHead) {
                ht->pListHead = zend_shared_alloc_get_xlat_entry(ht->pListHead);
        }
        if (ht->pListTail) {
                ht->pListTail = zend_shared_alloc_get_xlat_entry(ht->pListTail);
        }
        if (ht->pInternalPointer) {
                ht->pInternalPointer = zend_shared_alloc_get_xlat_entry(ht->pInternalPointer);
        }

#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
        /* Check if HastTable is initialized */
        if (ht->nTableMask) {
#endif
                if (ht->nNumOfElements) {
                        /* update hash table */
                        for (i = 0; i < ht->nTableSize; i++) {
                                if (ht->arBuckets[i]) {
                                        ht->arBuckets[i] = zend_shared_alloc_get_xlat_entry(ht->arBuckets[i]);
                                }
                        }
                }
                zend_accel_store(ht->arBuckets, sizeof(Bucket*) * ht->nTableSize);
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
        } else {
                ht->arBuckets = (Bucket**)&uninitialized_bucket;
        }
#endif
}

#if ZEND_EXTENSION_API_NO > PHP_5_5_X_API_NO
static zend_ast *zend_persist_ast(zend_ast *ast TSRMLS_DC)
{
        int i;
        zend_ast *node;

        if (ast->kind == ZEND_CONST) {
                node = zend_accel_memdup(ast, sizeof(zend_ast) + sizeof(zval));
                node->u.val = (zval*)(node + 1);
                zend_persist_zval(node->u.val TSRMLS_CC);
        } else {
                node = zend_accel_memdup(ast, sizeof(zend_ast) + sizeof(zend_ast*) * (ast->children - 1));
                for (i = 0; i < ast->children; i++) {
                        if ((&node->u.child)[i]) {
                                (&node->u.child)[i] = zend_persist_ast((&node->u.child)[i] TSRMLS_CC);
                        }
                }
        }
        efree(ast);
        return node;
}
#endif

static void zend_persist_zval(zval *z TSRMLS_DC)
{
#if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO
        switch (z->type & IS_CONSTANT_TYPE_MASK) {
#else
        switch (z->type & ~IS_CONSTANT_INDEX) {
#endif
                case IS_STRING:
                case IS_CONSTANT:
                        zend_accel_store_interned_string(z->value.str.val, z->value.str.len + 1);
                        break;
                case IS_ARRAY:
#if ZEND_EXTENSION_API_NO <= PHP_5_5_API_NO
                case IS_CONSTANT_ARRAY:
#endif
                        zend_accel_store(z->value.ht, sizeof(HashTable));
                        zend_hash_persist(z->value.ht, (zend_persist_func_t) zend_persist_zval_ptr, sizeof(zval**) TSRMLS_CC);
                        break;
#if ZEND_EXTENSION_API_NO > PHP_5_5_X_API_NO
                case IS_CONSTANT_AST:
                        Z_AST_P(z) = zend_persist_ast(Z_AST_P(z) TSRMLS_CC);
                        break;
#endif
        }
}

static void zend_persist_zval_ptr(zval **zp TSRMLS_DC)
{
        zval *new_ptr = zend_shared_alloc_get_xlat_entry(*zp);

        if (new_ptr) {
                *zp = new_ptr;
        } else {
                /* Attempt to store only if we didn't store this zval_ptr yet */
                zend_accel_store(*zp, sizeof(zval));
                zend_persist_zval(*zp TSRMLS_CC);
        }
}

static void zend_protect_zval(zval *z TSRMLS_DC)
{
        PZ_SET_ISREF_P(z);
        PZ_SET_REFCOUNT_P(z, 2);
}

static void zend_persist_op_array_ex(zend_op_array *op_array, zend_persistent_script* main_persistent_script TSRMLS_DC)
{
        zend_op *persist_ptr;
#if ZEND_EXTENSION_API_NO < PHP_5_3_X_API_NO
        int has_jmp = 0;
#endif
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
        zend_literal *orig_literals = NULL;
#endif

        if (op_array->type != ZEND_USER_FUNCTION) {
                return;
        }

#if ZEND_EXTENSION_API_NO <= PHP_5_3_X_API_NO
        op_array->size = op_array->last;
#endif

        if (--(*op_array->refcount) == 0) {
                efree(op_array->refcount);
        }
        op_array->refcount = NULL;

        if (op_array->filename) {
                /* do not free! PHP has centralized filename storage, compiler will free it */
                op_array->filename = zend_accel_memdup(op_array->filename, strlen(op_array->filename) + 1);
        }

        if (main_persistent_script) {
                zend_bool orig_in_execution = EG(in_execution);
                zend_op_array *orig_op_array = EG(active_op_array);
                zval offset;

#if ZEND_EXTENSION_API_NO < PHP_5_3_X_API_NO
                main_persistent_script->early_binding = -1;
#endif
                EG(in_execution) = 1;
                EG(active_op_array) = op_array;
                if (zend_get_constant("__COMPILER_HALT_OFFSET__", sizeof("__COMPILER_HALT_OFFSET__") - 1, &offset TSRMLS_CC)) {
                        main_persistent_script->compiler_halt_offset = Z_LVAL(offset);
                }
                EG(active_op_array) = orig_op_array;
                EG(in_execution) = orig_in_execution;
        }

#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
        if (op_array->literals) {
                orig_literals = zend_shared_alloc_get_xlat_entry(op_array->literals);
                if (orig_literals) {
                        op_array->literals = orig_literals;
                } else {
                        zend_literal *p = zend_accel_memdup(op_array->literals, sizeof(zend_literal) * op_array->last_literal);
                        zend_literal *end = p + op_array->last_literal;
                        orig_literals = op_array->literals;
                        op_array->literals = p;
                        while (p < end) {
                                zend_persist_zval(&p->constant TSRMLS_CC);
                                zend_protect_zval(&p->constant TSRMLS_CC);
                                p++;
                        }
                        efree(orig_literals);
                }
        }
#endif

        if ((persist_ptr = zend_shared_alloc_get_xlat_entry(op_array->opcodes))) {
                op_array->opcodes = persist_ptr;
        } else {
                zend_op *new_opcodes = zend_accel_memdup(op_array->opcodes, sizeof(zend_op) * op_array->last);
                zend_op *opline = new_opcodes;
                zend_op *end = new_opcodes + op_array->last;
                int offset = 0;

                for (; opline < end ; opline++, offset++) {
                        if (ZEND_OP1_TYPE(opline) == IS_CONST) {
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
                                opline->op1.zv = (zval*)((char*)opline->op1.zv + ((char*)op_array->literals - (char*)orig_literals));
#else
                                zend_persist_zval(&opline->op1.u.constant TSRMLS_CC);
                                zend_protect_zval(&opline->op1.u.constant TSRMLS_CC);
#endif
                        }
                        if (ZEND_OP2_TYPE(opline) == IS_CONST) {
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
                                opline->op2.zv = (zval*)((char*)opline->op2.zv + ((char*)op_array->literals - (char*)orig_literals));
#else
                                zend_persist_zval(&opline->op2.u.constant TSRMLS_CC);
                                zend_protect_zval(&opline->op2.u.constant TSRMLS_CC);
#endif
                        }

#if ZEND_EXTENSION_API_NO < PHP_5_3_X_API_NO
                        switch (opline->opcode) {
                                case ZEND_JMP:
                                        has_jmp = 1;
                                        if (ZEND_DONE_PASS_TWO(op_array)) {
                                                ZEND_OP1(opline).jmp_addr = &new_opcodes[ZEND_OP1(opline).jmp_addr - op_array->opcodes];
                                        }
                                        break;
                                case ZEND_JMPZ:
                                case ZEND_JMPNZ:
                                case ZEND_JMPZ_EX:
                                case ZEND_JMPNZ_EX:
                                        has_jmp = 1;
                                        if (ZEND_DONE_PASS_TWO(op_array)) {
                                                ZEND_OP2(opline).jmp_addr = &new_opcodes[ZEND_OP2(opline).jmp_addr - op_array->opcodes];
                                        }
                                        break;
                                case ZEND_JMPZNZ:
                                case ZEND_BRK:
                                case ZEND_CONT:
                                        has_jmp = 1;
                                        break;
                                case ZEND_DECLARE_INHERITED_CLASS:
                                        if (main_persistent_script && ZCG(accel_directives).inherited_hack) {
                                        if (!has_jmp &&
                                           ((opline + 2) >= end ||
                                            (opline + 1)->opcode != ZEND_FETCH_CLASS ||
                                            (opline + 2)->opcode != ZEND_ADD_INTERFACE)) {

                                                zend_uint *opline_num = &main_persistent_script->early_binding;

                                                while ((int)*opline_num != -1) {
                                                        opline_num = &new_opcodes[*opline_num].result.u.opline_num;
                                                }
                                                *opline_num = opline - new_opcodes;
                                                opline->result.op_type = IS_UNUSED;
                                                opline->result.u.opline_num = -1;
                                                opline->opcode = ZEND_DECLARE_INHERITED_CLASS_DELAYED;
                                                ZEND_VM_SET_OPCODE_HANDLER(opline);
                                        }
                                        break;
                                }
                        }

#else /* if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO */

                        if (ZEND_DONE_PASS_TWO(op_array)) {
                                /* fix jumps to point to new array */
                                switch (opline->opcode) {
                                        case ZEND_JMP:
                                        case ZEND_GOTO:
#if ZEND_EXTENSION_API_NO > PHP_5_4_X_API_NO
                                        case ZEND_FAST_CALL:
#endif
                                                ZEND_OP1(opline).jmp_addr = &new_opcodes[ZEND_OP1(opline).jmp_addr - op_array->opcodes];
                                                break;
                                        case ZEND_JMPZ:
                                        case ZEND_JMPNZ:
                                        case ZEND_JMPZ_EX:
                                        case ZEND_JMPNZ_EX:
                                        case ZEND_JMP_SET:
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
                                        case ZEND_JMP_SET_VAR:
#endif
                                                ZEND_OP2(opline).jmp_addr = &new_opcodes[ZEND_OP2(opline).jmp_addr - op_array->opcodes];
                                                break;
                                }
                        }
#endif /* if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO */
                }

                efree(op_array->opcodes);
                op_array->opcodes = new_opcodes;

#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
                if (op_array->run_time_cache) {
                        efree(op_array->run_time_cache);
                        op_array->run_time_cache = NULL;
                }
#endif
        }

        if (op_array->function_name) {
                char *new_name;
                if ((new_name = zend_shared_alloc_get_xlat_entry(op_array->function_name))) {
                        op_array->function_name = new_name;
                } else {
                        zend_accel_store(op_array->function_name, strlen(op_array->function_name) + 1);
                }
        }

        if (op_array->arg_info) {
                zend_arg_info *new_ptr;
                if ((new_ptr = zend_shared_alloc_get_xlat_entry(op_array->arg_info))) {
                        op_array->arg_info = new_ptr;
                } else {
                        zend_uint i;

                        zend_accel_store(op_array->arg_info, sizeof(zend_arg_info) * op_array->num_args);
                        for (i = 0; i < op_array->num_args; i++) {
                                if (op_array->arg_info[i].name) {
                                        zend_accel_store_interned_string(op_array->arg_info[i].name, op_array->arg_info[i].name_len + 1);
                                }
                                if (op_array->arg_info[i].class_name) {
                                        zend_accel_store_interned_string(op_array->arg_info[i].class_name, op_array->arg_info[i].class_name_len + 1);
                                }
                        }
                }
        }

        if (op_array->brk_cont_array) {
                zend_accel_store(op_array->brk_cont_array, sizeof(zend_brk_cont_element) * op_array->last_brk_cont);
        }

        if (op_array->static_variables) {
                zend_hash_persist(op_array->static_variables, (zend_persist_func_t) zend_persist_zval_ptr, sizeof(zval**) TSRMLS_CC);
                zend_accel_store(op_array->static_variables, sizeof(HashTable));
        }

        if (op_array->scope) {
                op_array->scope = zend_shared_alloc_get_xlat_entry(op_array->scope);
        }

        if (op_array->doc_comment) {
                if (ZCG(accel_directives).save_comments) {
                        zend_accel_store(op_array->doc_comment, op_array->doc_comment_len + 1);
                } else {
                        if (!zend_shared_alloc_get_xlat_entry(op_array->doc_comment)) {
                                zend_shared_alloc_register_xlat_entry(op_array->doc_comment, op_array->doc_comment);
                                efree((char*)op_array->doc_comment);
                        }
                        op_array->doc_comment = NULL;
                        op_array->doc_comment_len = 0;
                }
        }

        if (op_array->try_catch_array) {
                zend_accel_store(op_array->try_catch_array, sizeof(zend_try_catch_element) * op_array->last_try_catch);
        }

        if (op_array->vars) {
                if ((persist_ptr = zend_shared_alloc_get_xlat_entry(op_array->vars))) {
                        op_array->vars = (zend_compiled_variable*)persist_ptr;
                } else {
                        int i;
                        zend_accel_store(op_array->vars, sizeof(zend_compiled_variable) * op_array->last_var);
                        for (i = 0; i < op_array->last_var; i++) {
                                zend_accel_store_interned_string(op_array->vars[i].name, op_array->vars[i].name_len + 1);
                        }
                }
        }

        /* "prototype" may be undefined if "scope" isn't set */
        if (op_array->scope && op_array->prototype) {
                if ((persist_ptr = zend_shared_alloc_get_xlat_entry(op_array->prototype))) {
                        op_array->prototype = (union _zend_function*)persist_ptr;
                        /* we use refcount to show that op_array is referenced from several places */
                        op_array->prototype->op_array.refcount++;
                }
        } else {
                op_array->prototype = NULL;
        }
}

static void zend_persist_op_array(zend_op_array *op_array TSRMLS_DC)
{
        zend_persist_op_array_ex(op_array, NULL TSRMLS_CC);
}

static void zend_persist_property_info(zend_property_info *prop TSRMLS_DC)
{
        zend_accel_store_interned_string(prop->name, prop->name_length + 1);
        if (prop->doc_comment) {
                if (ZCG(accel_directives).save_comments) {
                        zend_accel_store(prop->doc_comment, prop->doc_comment_len + 1);
                } else {
                        if (!zend_shared_alloc_get_xlat_entry(prop->doc_comment)) {
                                zend_shared_alloc_register_xlat_entry(prop->doc_comment, prop->doc_comment);
                                efree((char*)prop->doc_comment);
                        }
                        prop->doc_comment = NULL;
                        prop->doc_comment_len = 0;
                }
        }
}

static void zend_persist_class_entry(zend_class_entry **pce TSRMLS_DC)
{
        zend_class_entry *ce = *pce;

        if (ce->type == ZEND_USER_CLASS) {
                *pce = zend_accel_store(ce, sizeof(zend_class_entry));
                zend_accel_store_interned_string(ce->name, ce->name_length + 1);
                zend_hash_persist(&ce->function_table, (zend_persist_func_t) zend_persist_op_array, sizeof(zend_op_array) TSRMLS_CC);
#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
                if (ce->default_properties_table) {
                    int i;

                        zend_accel_store(ce->default_properties_table, sizeof(zval*) * ce->default_properties_count);
                        for (i = 0; i < ce->default_properties_count; i++) {
                                if (ce->default_properties_table[i]) {
                                        zend_persist_zval_ptr(&ce->default_properties_table[i] TSRMLS_CC);
                                }
                        }
                }
                if (ce->default_static_members_table) {
                    int i;

                        zend_accel_store(ce->default_static_members_table, sizeof(zval*) * ce->default_static_members_count);
                        for (i = 0; i < ce->default_static_members_count; i++) {
                                if (ce->default_static_members_table[i]) {
                                        zend_persist_zval_ptr(&ce->default_static_members_table[i] TSRMLS_CC);
                                }
                        }
                }
                ce->static_members_table = NULL;
#else
                zend_hash_persist(&ce->default_properties, (zend_persist_func_t) zend_persist_zval_ptr, sizeof(zval**) TSRMLS_CC);
                zend_hash_persist(&ce->default_static_members, (zend_persist_func_t) zend_persist_zval_ptr, sizeof(zval**) TSRMLS_CC);
                ce->static_members = NULL;
#endif
                zend_hash_persist(&ce->constants_table, (zend_persist_func_t) zend_persist_zval_ptr, sizeof(zval**) TSRMLS_CC);

                if (ZEND_CE_FILENAME(ce)) {
                        /* do not free! PHP has centralized filename storage, compiler will free it */
                        ZEND_CE_FILENAME(ce) = zend_accel_memdup(ZEND_CE_FILENAME(ce), strlen(ZEND_CE_FILENAME(ce)) + 1);
                }
                if (ZEND_CE_DOC_COMMENT(ce)) {
                        if (ZCG(accel_directives).save_comments) {
                                zend_accel_store(ZEND_CE_DOC_COMMENT(ce), ZEND_CE_DOC_COMMENT_LEN(ce) + 1);
                        } else {
                                if (!zend_shared_alloc_get_xlat_entry(ZEND_CE_DOC_COMMENT(ce))) {
                                        zend_shared_alloc_register_xlat_entry(ZEND_CE_DOC_COMMENT(ce), ZEND_CE_DOC_COMMENT(ce));
                                        efree((char*)ZEND_CE_DOC_COMMENT(ce));
                                }
                                ZEND_CE_DOC_COMMENT(ce) = NULL;
                                ZEND_CE_DOC_COMMENT_LEN(ce) = 0;
                        }
                }
                zend_hash_persist(&ce->properties_info, (zend_persist_func_t) zend_persist_property_info, sizeof(zend_property_info) TSRMLS_CC);
                if (ce->num_interfaces && ce->interfaces) {
                        efree(ce->interfaces);
                }
                ce->interfaces = NULL; /* will be filled in on fetch */

#if ZEND_EXTENSION_API_NO > PHP_5_3_X_API_NO
                if (ce->num_traits && ce->traits) {
                        efree(ce->traits);
                }
                ce->traits = NULL;

                if (ce->trait_aliases) {
                        int i = 0;
                        while (ce->trait_aliases[i]) {
                                if (ce->trait_aliases[i]->trait_method) {
                                        if (ce->trait_aliases[i]->trait_method->method_name) {
                                                zend_accel_store(ce->trait_aliases[i]->trait_method->method_name,
                                                        ce->trait_aliases[i]->trait_method->mname_len + 1);
                                        }
                                        if (ce->trait_aliases[i]->trait_method->class_name) {
                                                zend_accel_store(ce->trait_aliases[i]->trait_method->class_name,
                                                        ce->trait_aliases[i]->trait_method->cname_len + 1);
                                        }
                                        ce->trait_aliases[i]->trait_method->ce = NULL;
                                        zend_accel_store(ce->trait_aliases[i]->trait_method,
                                                sizeof(zend_trait_method_reference));
                                }

                                if (ce->trait_aliases[i]->alias) {
                                        zend_accel_store(ce->trait_aliases[i]->alias,
                                                ce->trait_aliases[i]->alias_len + 1);
                                }

#if ZEND_EXTENSION_API_NO <= PHP_5_4_X_API_NO
                ce->trait_aliases[i]->function = NULL;
#endif
                                zend_accel_store(ce->trait_aliases[i], sizeof(zend_trait_alias));
                                i++;
                        }

                        zend_accel_store(ce->trait_aliases, sizeof(zend_trait_alias*) * (i + 1));
                }

                if (ce->trait_precedences) {
                        int i = 0;

                        while (ce->trait_precedences[i]) {
                                zend_accel_store(ce->trait_precedences[i]->trait_method->method_name,
                                        ce->trait_precedences[i]->trait_method->mname_len + 1);
                                zend_accel_store(ce->trait_precedences[i]->trait_method->class_name,
                                        ce->trait_precedences[i]->trait_method->cname_len + 1);
                                ce->trait_precedences[i]->trait_method->ce = NULL;
                                zend_accel_store(ce->trait_precedences[i]->trait_method,
                                        sizeof(zend_trait_method_reference));

                                if (ce->trait_precedences[i]->exclude_from_classes) {
                                        int j = 0;

                                        while (ce->trait_precedences[i]->exclude_from_classes[j]) {
                                                zend_accel_store(ce->trait_precedences[i]->exclude_from_classes[j],
                                                        strlen((char*)ce->trait_precedences[i]->exclude_from_classes[j]) + 1);
                                                j++;
                                        }
                                        zend_accel_store(ce->trait_precedences[i]->exclude_from_classes,
                                                sizeof(zend_class_entry*) * (j + 1));
                                }

#if ZEND_EXTENSION_API_NO <= PHP_5_4_X_API_NO
                ce->trait_precedences[i]->function = NULL;
#endif
                                zend_accel_store(ce->trait_precedences[i], sizeof(zend_trait_precedence));
                                i++;
                        }
                        zend_accel_store(
                                ce->trait_precedences, sizeof(zend_trait_precedence*) * (i + 1));
                }
#endif
        }
}

static int zend_update_property_info_ce(zend_property_info *prop TSRMLS_DC)
{
        prop->ce = zend_shared_alloc_get_xlat_entry(prop->ce);
        return 0;
}

static int zend_update_parent_ce(zend_class_entry **pce TSRMLS_DC)
{
        zend_class_entry *ce = *pce;

        if (ce->parent) {
                ce->parent = zend_shared_alloc_get_xlat_entry(ce->parent);
                /* We use refcount to show if the class is used as a parent */
                ce->parent->refcount++;
        }

        /* update methods */
        if (ce->constructor) {
                ce->constructor = zend_shared_alloc_get_xlat_entry(ce->constructor);
                /* we use refcount to show that op_array is referenced from several places */
                ce->constructor->op_array.refcount++;
        }
        if (ce->destructor) {
                ce->destructor = zend_shared_alloc_get_xlat_entry(ce->destructor);
                ce->destructor->op_array.refcount++;
        }
        if (ce->clone) {
                ce->clone = zend_shared_alloc_get_xlat_entry(ce->clone);
                ce->clone->op_array.refcount++;
        }
        if (ce->__get) {
                ce->__get = zend_shared_alloc_get_xlat_entry(ce->__get);
                ce->__get->op_array.refcount++;
        }
        if (ce->__set) {
                ce->__set = zend_shared_alloc_get_xlat_entry(ce->__set);
                ce->__set->op_array.refcount++;
        }
        if (ce->__call) {
                ce->__call = zend_shared_alloc_get_xlat_entry(ce->__call);
                ce->__call->op_array.refcount++;
        }
        if (ce->serialize_func) {
                ce->serialize_func = zend_shared_alloc_get_xlat_entry(ce->serialize_func);
                ce->serialize_func->op_array.refcount++;
        }
        if (ce->unserialize_func) {
                ce->unserialize_func = zend_shared_alloc_get_xlat_entry(ce->unserialize_func);
                ce->unserialize_func->op_array.refcount++;
        }
        if (ce->__isset) {
                ce->__isset = zend_shared_alloc_get_xlat_entry(ce->__isset);
                ce->__isset->op_array.refcount++;
        }
        if (ce->__unset) {
                ce->__unset = zend_shared_alloc_get_xlat_entry(ce->__unset);
                ce->__unset->op_array.refcount++;
        }
        if (ce->__tostring) {
                ce->__tostring = zend_shared_alloc_get_xlat_entry(ce->__tostring);
                ce->__tostring->op_array.refcount++;
        }
#if ZEND_EXTENSION_API_NO >= PHP_5_3_X_API_NO
        if (ce->__callstatic) {
                ce->__callstatic = zend_shared_alloc_get_xlat_entry(ce->__callstatic);
                ce->__callstatic->op_array.refcount++;
        }
#endif
#if ZEND_EXTENSION_API_NO >= PHP_5_6_X_API_NO
        if (ce->__debugInfo) {
                ce->__debugInfo = zend_shared_alloc_get_xlat_entry(ce->__debugInfo);
                ce->__debugInfo->op_array.refcount++;
        }
#endif
        zend_hash_apply(&ce->properties_info, (apply_func_t) zend_update_property_info_ce TSRMLS_CC);
        return 0;
}

static void zend_accel_persist_class_table(HashTable *class_table TSRMLS_DC)
{
    zend_hash_persist(class_table, (zend_persist_func_t) zend_persist_class_entry, sizeof(zend_class_entry*) TSRMLS_CC);
        zend_hash_apply(class_table, (apply_func_t) zend_update_parent_ce TSRMLS_CC);
}

zend_persistent_script *zend_accel_script_persist(zend_persistent_script *script, char **key, unsigned int key_length TSRMLS_DC)
{
        zend_shared_alloc_clear_xlat_table();
        zend_hash_persist(&script->function_table, (zend_persist_func_t) zend_persist_op_array, sizeof(zend_op_array) TSRMLS_CC);
        zend_accel_persist_class_table(&script->class_table TSRMLS_CC);
        zend_persist_op_array_ex(&script->main_op_array, script TSRMLS_CC);
        *key = zend_accel_memdup(*key, key_length + 1);
        zend_accel_store(script->full_path, script->full_path_len + 1);
        zend_accel_store(script, sizeof(zend_persistent_script));

        return script;
}

int zend_accel_script_persistable(zend_persistent_script *script)
{
        return 1;
}

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