/* +----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) 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: Dmitry Stogov <dmitry@php.net> | +----------------------------------------------------------------------+ */ #ifndef ZEND_MAP_PTR_H #define ZEND_MAP_PTR_H #include "zend_portability.h" #define ZEND_MAP_PTR_KIND_PTR 0 #define ZEND_MAP_PTR_KIND_PTR_OR_OFFSET 1 #define ZEND_MAP_PTR_KIND ZEND_MAP_PTR_KIND_PTR_OR_OFFSET #define ZEND_MAP_PTR(ptr) \ ptr ## __ptr #define ZEND_MAP_PTR_DEF(type, name) \ type ZEND_MAP_PTR(name) #define ZEND_MAP_PTR_OFFSET2PTR(offset) \ ((void**)((char*)CG(map_ptr_base) + offset)) #define ZEND_MAP_PTR_PTR2OFFSET(ptr) \ ((void*)(((char*)(ptr)) - ((char*)CG(map_ptr_base)))) #define ZEND_MAP_PTR_INIT(ptr, val) do { \ ZEND_MAP_PTR(ptr) = (val); \ } while (0) #define ZEND_MAP_PTR_NEW(ptr) do { \ ZEND_MAP_PTR(ptr) = zend_map_ptr_new(); \ } while (0) #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET # define ZEND_MAP_PTR_NEW_OFFSET() \ ((uint32_t)(uintptr_t)zend_map_ptr_new()) # define ZEND_MAP_PTR_IS_OFFSET(ptr) \ (((uintptr_t)ZEND_MAP_PTR(ptr)) & 1L) # define ZEND_MAP_PTR_GET(ptr) \ ((ZEND_MAP_PTR_IS_OFFSET(ptr) ? \ ZEND_MAP_PTR_GET_IMM(ptr) : \ ((void*)(ZEND_MAP_PTR(ptr))))) # define ZEND_MAP_PTR_GET_IMM(ptr) \ (*ZEND_MAP_PTR_OFFSET2PTR((uintptr_t)ZEND_MAP_PTR(ptr))) # define ZEND_MAP_PTR_SET(ptr, val) do { \ if (ZEND_MAP_PTR_IS_OFFSET(ptr)) { \ ZEND_MAP_PTR_SET_IMM(ptr, val); \ } else { \ ZEND_MAP_PTR_INIT(ptr, val); \ } \ } while (0) # define ZEND_MAP_PTR_SET_IMM(ptr, val) do { \ void **__p = ZEND_MAP_PTR_OFFSET2PTR((uintptr_t)ZEND_MAP_PTR(ptr)); \ *__p = (val); \ } while (0) # define ZEND_MAP_PTR_BIASED_BASE(real_base) \ ((void*)(((uintptr_t)(real_base)) - 1)) #else # error "Unknown ZEND_MAP_PTR_KIND" #endif BEGIN_EXTERN_C() ZEND_API void zend_map_ptr_reset(void); ZEND_API void *zend_map_ptr_new(void); ZEND_API void zend_map_ptr_extend(size_t last); ZEND_API void zend_alloc_ce_cache(zend_string *type_name); END_EXTERN_C() #endif /* ZEND_MAP_PTR_H */