/*

   +----------------------------------------------------------------------+

   | Zend OPcache                                                         |

   +----------------------------------------------------------------------+

   | Copyright (c) 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:           |

   | https://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@php.net>                                 |

   |          Zeev Suraski <zeev@php.net>                                 |

   |          Stanislav Malyshev <stas@zend.com>                          |

   |          Dmitry Stogov <dmitry@php.net>                              |

   +----------------------------------------------------------------------+

*/

#include "zend.h"

#include "ZendAccelerator.h"

#include "zend_persist.h"

#include "zend_extensions.h"

#include "zend_shared_alloc.h"

#include "zend_operators.h"

#include "zend_attributes.h"

#include "zend_constants.h"

#define ADD_DUP_SIZE(m,s)  ZCG(current_persistent_script)->size += zend_shared_memdup_size((void*)m, s)

#define ADD_SIZE(m)        ZCG(current_persistent_script)->size += ZEND_ALIGNED_SIZE(m)

# define ADD_STRING(str) ADD_DUP_SIZE((str), _ZSTR_STRUCT_SIZE(ZSTR_LEN(str)))

# define ADD_INTERNED_STRING(str) do { \

    if (ZCG(current_persistent_script)->corrupted) { \

      ADD_STRING(str); \

    } else if (!IS_ACCEL_INTERNED(str)) { \

      zend_string *tmp = accel_new_interned_string(str); \

      if (tmp != (str)) { \

        (str) = tmp; \

      } else { \

        ADD_STRING(str); \

      } \

    } \

  } while (0)

static void zend_persist_zval_calc(zval *z);

static void zend_persist_op_array_calc(zval *zv);

static void zend_hash_persist_calc(HashTable *ht)

{

  if ((HT_FLAGS(ht) & HASH_FLAG_UNINITIALIZED) || ht->nNumUsed == 0) {

    return;

  }

  if (HT_IS_PACKED(ht)) {

    ADD_SIZE(HT_PACKED_USED_SIZE(ht));

  } else if (ht->nNumUsed > HT_MIN_SIZE && ht->nNumUsed < (uint32_t)(-(int32_t)ht->nTableMask) / 4) {

    /* compact table */

    uint32_t hash_size;

    hash_size = (uint32_t)(-(int32_t)ht->nTableMask);

    while (hash_size >> 2 > ht->nNumUsed) {

      hash_size >>= 1;

    }

    ADD_SIZE(hash_size * sizeof(uint32_t) + ht->nNumUsed * sizeof(Bucket));

  } else {

    ADD_SIZE(HT_USED_SIZE(ht));

  }

}

static void zend_persist_ast_calc(zend_ast *ast)

{

  uint32_t i;

  if (ast->kind == ZEND_AST_ZVAL || ast->kind == ZEND_AST_CONSTANT) {

    ADD_SIZE(sizeof(zend_ast_zval));

    zend_persist_zval_calc(&((zend_ast_zval*)(ast))->val);

  } else if (zend_ast_is_list(ast)) {

    zend_ast_list *list = zend_ast_get_list(ast);

    ADD_SIZE(sizeof(zend_ast_list) - sizeof(zend_ast *) + sizeof(zend_ast *) * list->children);

    for (i = 0; i < list->children; i++) {

      if (list->child[i]) {

        zend_persist_ast_calc(list->child[i]);

      }

    }

  } else if (ast->kind == ZEND_AST_OP_ARRAY) {

    ADD_SIZE(sizeof(zend_ast_op_array));

    zval z;

    ZVAL_PTR(&z, zend_ast_get_op_array(ast)->op_array);

    zend_persist_op_array_calc(&z);

  } else if (ast->kind == ZEND_AST_CALLABLE_CONVERT) {

    ADD_SIZE(sizeof(zend_ast_fcc));

  } else if (zend_ast_is_decl(ast)) {

    /* Not implemented. */

    ZEND_UNREACHABLE();

  } else {

    uint32_t children = zend_ast_get_num_children(ast);

    ADD_SIZE(zend_ast_size(children));

    for (i = 0; i < children; i++) {

      if (ast->child[i]) {

        zend_persist_ast_calc(ast->child[i]);

      }

    }

  }

}

static void zend_persist_zval_calc(zval *z)

{

  uint32_t size;

  switch (Z_TYPE_P(z)) {

    case IS_STRING:

      ADD_INTERNED_STRING(Z_STR_P(z));

      if (ZSTR_IS_INTERNED(Z_STR_P(z))) {

        Z_TYPE_FLAGS_P(z) = 0;

      }

      break;

    case IS_ARRAY:

      if (!ZCG(current_persistent_script)->corrupted

       && zend_accel_in_shm(Z_ARR_P(z))) {

        return;

      }

      size = zend_shared_memdup_size(Z_ARR_P(z), sizeof(zend_array));

      if (size) {

        HashTable *ht = Z_ARRVAL_P(z);

        ADD_SIZE(size);

        zend_hash_persist_calc(ht);

        if (HT_IS_PACKED(ht)) {

          zval *zv;

          ZEND_HASH_PACKED_FOREACH_VAL(Z_ARRVAL_P(z), zv) {

            zend_persist_zval_calc(zv);

          } ZEND_HASH_FOREACH_END();

        } else {

          Bucket *p;

          ZEND_HASH_MAP_FOREACH_BUCKET(Z_ARRVAL_P(z), p) {

            if (p->key) {

              ADD_INTERNED_STRING(p->key);

            }

            zend_persist_zval_calc(&p->val);

          } ZEND_HASH_FOREACH_END();

        }

      }

      break;

    case IS_CONSTANT_AST:

      if (ZCG(current_persistent_script)->corrupted

       || !zend_accel_in_shm(Z_AST_P(z))) {

        size = zend_shared_memdup_size(Z_AST_P(z), sizeof(zend_ast_ref));

        if (size) {

          ADD_SIZE(size);

          zend_persist_ast_calc(Z_ASTVAL_P(z));

        }

      }

      break;

    case IS_PTR:

      break;

    default:

      ZEND_ASSERT(Z_TYPE_P(z) < IS_STRING);

      break;

  }

}

static void zend_persist_attributes_calc(HashTable *attributes)

{

  if (!zend_shared_alloc_get_xlat_entry(attributes)

   && (ZCG(current_persistent_script)->corrupted

    || !zend_accel_in_shm(attributes))) {

    zend_attribute *attr;

    uint32_t i;

    zend_shared_alloc_register_xlat_entry(attributes, attributes);

    ADD_SIZE(sizeof(HashTable));

    zend_hash_persist_calc(attributes);

    ZEND_HASH_PACKED_FOREACH_PTR(attributes, attr) {

      ADD_SIZE(ZEND_ATTRIBUTE_SIZE(attr->argc));

      ADD_INTERNED_STRING(attr->name);

      ADD_INTERNED_STRING(attr->lcname);

      if (attr->validation_error != NULL) {

        ADD_INTERNED_STRING(attr->validation_error);

      }

      for (i = 0; i < attr->argc; i++) {

        if (attr->args[i].name) {

          ADD_INTERNED_STRING(attr->args[i].name);

        }

        zend_persist_zval_calc(&attr->args[i].value);

      }

    } ZEND_HASH_FOREACH_END();

  }

}

static void zend_persist_type_calc(zend_type *type)

{

  if (ZEND_TYPE_HAS_LIST(*type)) {

    ADD_SIZE(ZEND_TYPE_LIST_SIZE(ZEND_TYPE_LIST(*type)->num_types));

  }

  zend_type *single_type;

  ZEND_TYPE_FOREACH_MUTABLE(*type, single_type) {

    if (ZEND_TYPE_HAS_LIST(*single_type)) {

      zend_persist_type_calc(single_type);

      continue;

    }

    if (ZEND_TYPE_HAS_NAME(*single_type)) {

      zend_string *type_name = ZEND_TYPE_NAME(*single_type);

      ADD_INTERNED_STRING(type_name);

      ZEND_TYPE_SET_PTR(*single_type, type_name);

    }

  } ZEND_TYPE_FOREACH_END();

}

static void zend_persist_op_array_calc_ex(zend_op_array *op_array)

{

  if (op_array->function_name) {

    zend_string *old_name = op_array->function_name;

    ADD_INTERNED_STRING(op_array->function_name);

    /* Remember old function name, so it can be released multiple times if shared. */

    if (op_array->function_name != old_name

        && !zend_shared_alloc_get_xlat_entry(&op_array->function_name)) {

      zend_shared_alloc_register_xlat_entry(&op_array->function_name, old_name);

    }

  }

  if (op_array->scope) {

    if (zend_shared_alloc_get_xlat_entry(op_array->opcodes)) {

      /* already stored */

      ADD_SIZE(ZEND_ALIGNED_SIZE(zend_extensions_op_array_persist_calc(op_array)));

      return;

    }

  }

  if (op_array->scope

   && !(op_array->fn_flags & ZEND_ACC_CLOSURE)

   && (op_array->scope->ce_flags & ZEND_ACC_CACHED)) {

    return;

  }

  if (op_array->static_variables && !zend_accel_in_shm(op_array->static_variables)) {

    if (!zend_shared_alloc_get_xlat_entry(op_array->static_variables)) {

      Bucket *p;

      zend_shared_alloc_register_xlat_entry(op_array->static_variables, op_array->static_variables);

      ADD_SIZE(sizeof(HashTable));

      zend_hash_persist_calc(op_array->static_variables);

      ZEND_HASH_MAP_FOREACH_BUCKET(op_array->static_variables, p) {

        ZEND_ASSERT(p->key != NULL);

        ADD_INTERNED_STRING(p->key);

        zend_persist_zval_calc(&p->val);

      } ZEND_HASH_FOREACH_END();

    }

  }

  if (op_array->literals) {

    zval *p = op_array->literals;

    zval *end = p + op_array->last_literal;

    ADD_SIZE(sizeof(zval) * op_array->last_literal);

    while (p < end) {

      zend_persist_zval_calc(p);

      p++;

    }

  }

  zend_shared_alloc_register_xlat_entry(op_array->opcodes, op_array->opcodes);

  ADD_SIZE(sizeof(zend_op) * op_array->last);

  /* ZEND_ACC_PTR_OPS and ZEND_ACC_OVERRIDE use the same value */

  if ((op_array->fn_flags & ZEND_ACC_PTR_OPS) && !op_array->function_name) {

    zend_op *op = op_array->opcodes;

    zend_op *end = op + op_array->last;

    while (op < end) {

      if (op->opcode == ZEND_DECLARE_ATTRIBUTED_CONST) {

        HashTable *attributes = Z_PTR_P(RT_CONSTANT(op+1, (op+1)->op1));

        zend_persist_attributes_calc(attributes);

      }

      op++;

    }

  }

  if (op_array->filename) {

    ADD_STRING(op_array->filename);

  }

  if (op_array->arg_info) {

    zend_arg_info *arg_info = op_array->arg_info;

    uint32_t num_args = op_array->num_args;

    uint32_t i;

    if (op_array->fn_flags & ZEND_ACC_VARIADIC) {

      num_args++;

    }

    if (op_array->fn_flags & ZEND_ACC_HAS_RETURN_TYPE) {

      arg_info--;

      num_args++;

    }

    ADD_SIZE(sizeof(zend_arg_info) * num_args);

    for (i = 0; i < num_args; i++) {

      if (arg_info[i].name) {

        ADD_INTERNED_STRING(arg_info[i].name);

      }

      zend_persist_type_calc(&arg_info[i].type);

    }

  }

  if (op_array->live_range) {

    ADD_SIZE(sizeof(zend_live_range) * op_array->last_live_range);

  }

  if (ZCG(accel_directives).save_comments && op_array->doc_comment) {

    ADD_STRING(op_array->doc_comment);

  }

  if (op_array->attributes) {

    zend_persist_attributes_calc(op_array->attributes);

  }

  if (op_array->try_catch_array) {

    ADD_SIZE(sizeof(zend_try_catch_element) * op_array->last_try_catch);

  }

  if (op_array->vars) {

    int i;

    ADD_SIZE(sizeof(zend_string*) * op_array->last_var);

    for (i = 0; i < op_array->last_var; i++) {

      ADD_INTERNED_STRING(op_array->vars[i]);

    }

  }

  if (op_array->num_dynamic_func_defs) {

    ADD_SIZE(sizeof(void *) * op_array->num_dynamic_func_defs);

    for (uint32_t i = 0; i < op_array->num_dynamic_func_defs; i++) {

      zval tmp;

      ZVAL_PTR(&tmp, op_array->dynamic_func_defs[i]);

      zend_persist_op_array_calc(&tmp);

    }

  }

  ADD_SIZE(ZEND_ALIGNED_SIZE(zend_extensions_op_array_persist_calc(op_array)));

}

static void zend_persist_op_array_calc(zval *zv)

{

  zend_op_array *op_array = Z_PTR_P(zv);

  ZEND_ASSERT(op_array->type == ZEND_USER_FUNCTION);

  if (!zend_shared_alloc_get_xlat_entry(op_array)) {

    zend_shared_alloc_register_xlat_entry(op_array, op_array);

    ADD_SIZE(sizeof(zend_op_array));

    zend_persist_op_array_calc_ex(op_array);

  } else {

    /* This can happen during preloading, if a dynamic function definition is declared. */

  }

}

static void zend_persist_class_method_calc(zend_op_array *op_array)

{

  zend_op_array *old_op_array;

  if (op_array->type != ZEND_USER_FUNCTION) {

    ZEND_ASSERT(op_array->type == ZEND_INTERNAL_FUNCTION);

    if (op_array->fn_flags & ZEND_ACC_ARENA_ALLOCATED) {

      old_op_array = zend_shared_alloc_get_xlat_entry(op_array);

      if (!old_op_array) {

        ADD_SIZE(sizeof(zend_internal_function));

        zend_shared_alloc_register_xlat_entry(op_array, op_array);

      }

    }

    return;

  }

  if ((op_array->fn_flags & ZEND_ACC_IMMUTABLE)

   && !ZCG(current_persistent_script)->corrupted

   && zend_accel_in_shm(op_array)) {

    zend_shared_alloc_register_xlat_entry(op_array, op_array);

    return;

  }

  old_op_array = zend_shared_alloc_get_xlat_entry(op_array);

  if (!old_op_array) {

    ADD_SIZE(sizeof(zend_op_array));

    zend_persist_op_array_calc_ex(op_array);

    zend_shared_alloc_register_xlat_entry(op_array, op_array);

  } else {

    /* If op_array is shared, the function name refcount is still incremented for each use,

     * so we need to release it here. We remembered the original function name in xlat. */

    zend_string *old_function_name =

      zend_shared_alloc_get_xlat_entry(&old_op_array->function_name);

    if (old_function_name) {

      zend_string_release_ex(old_function_name, 0);

    }

  }

}

static void zend_persist_property_info_calc(zend_property_info *prop)

{

  ADD_SIZE(sizeof(zend_property_info));

  ADD_INTERNED_STRING(prop->name);

  zend_persist_type_calc(&prop->type);

  if (ZCG(accel_directives).save_comments && prop->doc_comment) {

    ADD_STRING(prop->doc_comment);

  }

  if (prop->attributes) {

    zend_persist_attributes_calc(prop->attributes);

  }

  if (prop->hooks) {

    ADD_SIZE(ZEND_PROPERTY_HOOK_STRUCT_SIZE);

    for (uint32_t i = 0; i < ZEND_PROPERTY_HOOK_COUNT; i++) {

      if (prop->hooks[i]) {

        zend_persist_class_method_calc(&prop->hooks[i]->op_array);

      }

    }

  }

}

static void zend_persist_class_constant_calc(zval *zv)

{

  zend_class_constant *c = Z_PTR_P(zv);

  if (!zend_shared_alloc_get_xlat_entry(c)) {

    if (((c->ce->ce_flags & ZEND_ACC_IMMUTABLE) && !(Z_CONSTANT_FLAGS(c->value) & CONST_OWNED))

     || c->ce->type == ZEND_INTERNAL_CLASS) {

      /* Class constant comes from a different file in shm or internal class, keep existing pointer. */

      return;

    }

    if (!ZCG(current_persistent_script)->corrupted

     && zend_accel_in_shm(Z_PTR_P(zv))) {

      return;

    }

    zend_shared_alloc_register_xlat_entry(c, c);

    ADD_SIZE(sizeof(zend_class_constant));

    zend_persist_zval_calc(&c->value);

    if (ZCG(accel_directives).save_comments && c->doc_comment) {

      ADD_STRING(c->doc_comment);

    }

    if (c->attributes) {

      zend_persist_attributes_calc(c->attributes);

    }

    zend_persist_type_calc(&c->type);

  }

}

void zend_persist_class_entry_calc(zend_class_entry *ce)

{

  Bucket *p;

  if (ce->type == ZEND_USER_CLASS) {

    /* The same zend_class_entry may be reused by class_alias */

    if (zend_shared_alloc_get_xlat_entry(ce)) {

      return;

    }

    zend_shared_alloc_register_xlat_entry(ce, ce);

    ADD_SIZE(sizeof(zend_class_entry));

    if (!(ce->ce_flags & ZEND_ACC_CACHED)) {

      ADD_INTERNED_STRING(ce->name);

      if (ce->parent_name && !(ce->ce_flags & ZEND_ACC_LINKED)) {

        ADD_INTERNED_STRING(ce->parent_name);

      }

    }

    zend_hash_persist_calc(&ce->function_table);

    ZEND_HASH_MAP_FOREACH_BUCKET(&ce->function_table, p) {

      ZEND_ASSERT(p->key != NULL);

      ADD_INTERNED_STRING(p->key);

      zend_persist_class_method_calc(Z_PTR(p->val));

    } ZEND_HASH_FOREACH_END();

    if (ce->default_properties_table) {

        int i;

      ADD_SIZE(sizeof(zval) * ce->default_properties_count);

      for (i = 0; i < ce->default_properties_count; i++) {

        zend_persist_zval_calc(&ce->default_properties_table[i]);

      }

    }

    if (ce->default_static_members_table) {

        int i;

      ADD_SIZE(sizeof(zval) * ce->default_static_members_count);

      for (i = 0; i < ce->default_static_members_count; i++) {

        if (Z_TYPE(ce->default_static_members_table[i]) != IS_INDIRECT) {

          zend_persist_zval_calc(&ce->default_static_members_table[i]);

        }

      }

    }

    zend_hash_persist_calc(&ce->constants_table);

    ZEND_HASH_MAP_FOREACH_BUCKET(&ce->constants_table, p) {

      ZEND_ASSERT(p->key != NULL);

      ADD_INTERNED_STRING(p->key);

      zend_persist_class_constant_calc(&p->val);

    } ZEND_HASH_FOREACH_END();

    zend_hash_persist_calc(&ce->properties_info);

    ZEND_HASH_MAP_FOREACH_BUCKET(&ce->properties_info, p) {

      zend_property_info *prop = Z_PTR(p->val);

      ZEND_ASSERT(p->key != NULL);

      ADD_INTERNED_STRING(p->key);

      if (prop->ce == ce) {

        zend_persist_property_info_calc(prop);

      }

    } ZEND_HASH_FOREACH_END();

    if (ce->properties_info_table) {

      ADD_SIZE(sizeof(zend_property_info *) * ce->default_properties_count);

    }

    if (ce->num_interfaces && (ce->ce_flags & ZEND_ACC_LINKED)) {

      ADD_SIZE(sizeof(zend_class_entry*) * ce->num_interfaces);

    }

    if (ce->iterator_funcs_ptr) {

      ADD_SIZE(sizeof(zend_class_iterator_funcs));

    }

    if (ce->arrayaccess_funcs_ptr) {

      ADD_SIZE(sizeof(zend_class_arrayaccess_funcs));

    }

    if (ce->ce_flags & ZEND_ACC_CACHED) {

      return;

    }

    if (ce->info.user.filename) {

      ADD_STRING(ce->info.user.filename);

    }

    if (ZCG(accel_directives).save_comments && ce->doc_comment) {

      ADD_STRING(ce->doc_comment);

    }

    if (ce->attributes) {

      zend_persist_attributes_calc(ce->attributes);

    }

    if (ce->num_interfaces) {

      uint32_t i;

      if (!(ce->ce_flags & ZEND_ACC_LINKED)) {

        for (i = 0; i < ce->num_interfaces; i++) {

          ADD_INTERNED_STRING(ce->interface_names[i].name);

          ADD_INTERNED_STRING(ce->interface_names[i].lc_name);

        }

        ADD_SIZE(sizeof(zend_class_name) * ce->num_interfaces);

      }

    }

    if (ce->num_traits) {

      uint32_t i;

      for (i = 0; i < ce->num_traits; i++) {

        ADD_INTERNED_STRING(ce->trait_names[i].name);

        ADD_INTERNED_STRING(ce->trait_names[i].lc_name);

      }

      ADD_SIZE(sizeof(zend_class_name) * ce->num_traits);

      if (ce->trait_aliases) {

        i = 0;

        while (ce->trait_aliases[i]) {

          if (ce->trait_aliases[i]->trait_method.method_name) {

            ADD_INTERNED_STRING(ce->trait_aliases[i]->trait_method.method_name);

          }

          if (ce->trait_aliases[i]->trait_method.class_name) {

            ADD_INTERNED_STRING(ce->trait_aliases[i]->trait_method.class_name);

          }

          if (ce->trait_aliases[i]->alias) {

            ADD_INTERNED_STRING(ce->trait_aliases[i]->alias);

          }

          ADD_SIZE(sizeof(zend_trait_alias));

          i++;

        }

        ADD_SIZE(sizeof(zend_trait_alias*) * (i + 1));

      }

      if (ce->trait_precedences) {

        int j;

        i = 0;

        while (ce->trait_precedences[i]) {

          ADD_INTERNED_STRING(ce->trait_precedences[i]->trait_method.method_name);

          ADD_INTERNED_STRING(ce->trait_precedences[i]->trait_method.class_name);

          for (j = 0; j < ce->trait_precedences[i]->num_excludes; j++) {

            ADD_INTERNED_STRING(ce->trait_precedences[i]->exclude_class_names[j]);

          }

          ADD_SIZE(sizeof(zend_trait_precedence) + (ce->trait_precedences[i]->num_excludes - 1) * sizeof(zend_string*));

          i++;

        }

        ADD_SIZE(sizeof(zend_trait_precedence*) * (i + 1));

      }

    }

  }

}

static void zend_accel_persist_class_table_calc(HashTable *class_table)

{

  Bucket *p;

  zend_hash_persist_calc(class_table);

  ZEND_HASH_MAP_FOREACH_BUCKET(class_table, p) {

    ZEND_ASSERT(p->key != NULL);

    ADD_INTERNED_STRING(p->key);

    zend_persist_class_entry_calc(Z_CE(p->val));

  } ZEND_HASH_FOREACH_END();

}

void zend_persist_warnings_calc(uint32_t num_warnings, zend_error_info **warnings) {

  ADD_SIZE(num_warnings * sizeof(zend_error_info *));

  for (uint32_t i = 0; i < num_warnings; i++) {

    ADD_SIZE(sizeof(zend_error_info));

    ADD_STRING(warnings[i]->filename);

    ADD_STRING(warnings[i]->message);

  }

}

static void zend_persist_early_bindings_calc(

  uint32_t num_early_bindings, zend_early_binding *early_bindings)

{

  ADD_SIZE(sizeof(zend_early_binding) * num_early_bindings);

  for (uint32_t i = 0; i < num_early_bindings; i++) {

    zend_early_binding *early_binding = &early_bindings[i];

    ADD_INTERNED_STRING(early_binding->lcname);

    ADD_INTERNED_STRING(early_binding->rtd_key);

    ADD_INTERNED_STRING(early_binding->lc_parent_name);

  }

}

uint32_t zend_accel_script_persist_calc(zend_persistent_script *new_persistent_script, int for_shm)

{

  Bucket *p;

  new_persistent_script->mem = NULL;

  new_persistent_script->size = 0;

  new_persistent_script->corrupted = false;

  ZCG(current_persistent_script) = new_persistent_script;

  if (!for_shm) {

    /* script is not going to be saved in SHM */

    new_persistent_script->corrupted = true;

  }

  ADD_SIZE(sizeof(zend_persistent_script));

  ADD_INTERNED_STRING(new_persistent_script->script.filename);

#if defined(__AVX__) || defined(__SSE2__)

  /* Align size to 64-byte boundary */

  new_persistent_script->size = (new_persistent_script->size + 63) & ~63;

#endif

  if (new_persistent_script->script.class_table.nNumUsed != new_persistent_script->script.class_table.nNumOfElements) {

    zend_hash_rehash(&new_persistent_script->script.class_table);

  }

  zend_accel_persist_class_table_calc(&new_persistent_script->script.class_table);

  if (new_persistent_script->script.function_table.nNumUsed != new_persistent_script->script.function_table.nNumOfElements) {

    zend_hash_rehash(&new_persistent_script->script.function_table);

  }

  zend_hash_persist_calc(&new_persistent_script->script.function_table);

  ZEND_HASH_MAP_FOREACH_BUCKET(&new_persistent_script->script.function_table, p) {

    ZEND_ASSERT(p->key != NULL);

    ADD_INTERNED_STRING(p->key);

    zend_persist_op_array_calc(&p->val);

  } ZEND_HASH_FOREACH_END();

  zend_persist_op_array_calc_ex(&new_persistent_script->script.main_op_array);

  zend_persist_warnings_calc(

    new_persistent_script->num_warnings, new_persistent_script->warnings);

  zend_persist_early_bindings_calc(

    new_persistent_script->num_early_bindings, new_persistent_script->early_bindings);

  new_persistent_script->corrupted = false;

  ZCG(current_persistent_script) = NULL;

  return new_persistent_script->size;

}