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Fast Class Cache

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This is generalization of idea, that was previously usesd for caching
resolution of class_entries in zend_type. Now very similar mechanizm is
used for general zend_string into zend_class_entry resolution.

Interned zend_string with IS_STR_CLASS_NAME_MAP_PTR GC_FLAG uses its
refcount to adress corresponding zend_class_entry cache slot.
The refcount keeps an offset to this slot from CG(map_ptr_base).
Flag may be checked by ZSTR_HAS_CE_CACHE(str), cache slot may be read by
ZSTR_GET_CE_CACHE(str) and set by ZSTR_SET_CE_CACHE(str, ce).
This commit is contained in:
Dmitry Stogov 2021-04-08 23:37:40 +03:00
parent ad4b928750
commit d8e4fbae62
16 changed files with 216 additions and 135 deletions
Download patch file Download diff file Expand all files Collapse all files

14
Zend/zend_inheritance.c
View file

@ -2682,6 +2682,9 @@ ZEND_API zend_class_entry *zend_do_link_class(zend_class_entry *ce, zend_string
}
zv = zend_hash_find_ex(CG(class_table), key, 1);
Z_CE_P(zv) = ret;
if (ZSTR_HAS_CE_CACHE(ret->name)) {
ZSTR_SET_CE_CACHE(ret->name, ret);
}
return ret;
}
} else {
@ -2803,6 +2806,10 @@ ZEND_API zend_class_entry *zend_do_link_class(zend_class_entry *ce, zend_string
free_alloca(traits_and_interfaces, use_heap);
}
if (ZSTR_HAS_CE_CACHE(ce->name)) {
ZSTR_SET_CE_CACHE(ce->name, ce);
}
return ce;
}
/* }}} */
@ -2875,6 +2882,9 @@ zend_class_entry *zend_try_early_bind(zend_class_entry *ce, zend_class_entry *pa
return NULL;
}
}
if (ZSTR_HAS_CE_CACHE(ret->name)) {
ZSTR_SET_CE_CACHE(ret->name, ret);
}
return ret;
}
} else {
@ -2942,6 +2952,10 @@ zend_class_entry *zend_try_early_bind(zend_class_entry *ce, zend_class_entry *pa
}
}
if (ZSTR_HAS_CE_CACHE(ce->name)) {
ZSTR_SET_CE_CACHE(ce->name, ce);
}
return ce;
}
return NULL;