1 /* 2 +----------------------------------------------------------------------+ 3 | Zend Engine | 4 +----------------------------------------------------------------------+ 5 | Copyright (c) Zend Technologies Ltd. (http://www.zend.com) | 6 +----------------------------------------------------------------------+ 7 | This source file is subject to version 2.00 of the Zend license, | 8 | that is bundled with this package in the file LICENSE, and is | 9 | available through the world-wide-web at the following url: | 10 | http://www.zend.com/license/2_00.txt. | 11 | If you did not receive a copy of the Zend license and are unable to | 12 | obtain it through the world-wide-web, please send a note to | 13 | license@zend.com so we can mail you a copy immediately. | 14 +----------------------------------------------------------------------+ 15 | Authors: Dmitry Stogov <dmitry@php.net> | 16 +----------------------------------------------------------------------+ 17 */ 18 19 #ifndef ZEND_MAP_PTR_H 20 #define ZEND_MAP_PTR_H 21 22 #include "zend_portability.h" 23 24 #define ZEND_MAP_PTR_KIND_PTR 0 25 #define ZEND_MAP_PTR_KIND_PTR_OR_OFFSET 1 26 27 //#if defined(ZTS) || defined(TSRM_WIN32) 28 # define ZEND_MAP_PTR_KIND ZEND_MAP_PTR_KIND_PTR_OR_OFFSET 29 //#else 30 //# define ZEND_MAP_PTR_KIND ZEND_MAP_PTR_KIND_PTR 31 //#endif 32 33 #if ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR 34 # define ZEND_MAP_PTR(ptr) \ 35 ptr ## __ptr 36 # define ZEND_MAP_PTR_DEF(type, name) \ 37 type * ZEND_MAP_PTR(name) 38 # define ZEND_MAP_PTR_GET(ptr) \ 39 (*(ZEND_MAP_PTR(ptr))) 40 # define ZEND_MAP_PTR_SET(ptr, val) do { \ 41 (*(ZEND_MAP_PTR(ptr))) = (val); \ 42 } while (0) 43 # define ZEND_MAP_PTR_INIT(ptr, val) do { \ 44 ZEND_MAP_PTR(ptr) = (val); \ 45 } while (0) 46 # define ZEND_MAP_PTR_NEW(ptr) do { \ 47 ZEND_MAP_PTR(ptr) = zend_map_ptr_new(); \ 48 } while (0) 49 #elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET 50 # define ZEND_MAP_PTR(ptr) \ 51 ptr ## __ptr 52 # define ZEND_MAP_PTR_DEF(type, name) \ 53 type * ZEND_MAP_PTR(name) 54 # define ZEND_MAP_PTR_IS_OFFSET(ptr) \ 55 (((uintptr_t)ZEND_MAP_PTR(ptr)) & 1L) 56 # define ZEND_MAP_PTR_OFFSET2PTR(ptr) \ 57 ((void**)((char*)CG(map_ptr_base) + (uintptr_t)ZEND_MAP_PTR(ptr) - 1)) 58 # define ZEND_MAP_PTR_PTR2OFFSET(ptr) \ 59 ((void*)((uintptr_t)(((char*)(ptr)) - ((char*)CG(map_ptr_base))) | 1L)) 60 # define ZEND_MAP_PTR_GET(ptr) \ 61 (ZEND_MAP_PTR_IS_OFFSET(ptr) ? \ 62 *(ZEND_MAP_PTR_OFFSET2PTR(ptr)) : \ 63 (void*)(*(ZEND_MAP_PTR(ptr)))) 64 # define ZEND_MAP_PTR_SET(ptr, val) do { \ 65 if (ZEND_MAP_PTR_IS_OFFSET(ptr)) { \ 66 *(ZEND_MAP_PTR_OFFSET2PTR(ptr)) = (val); \ 67 } else { \ 68 *(ZEND_MAP_PTR(ptr)) = (val); \ 69 } \ 70 } while (0) 71 # define ZEND_MAP_PTR_INIT(ptr, val) do { \ 72 ZEND_MAP_PTR(ptr) = (val); \ 73 } while (0) 74 # define ZEND_MAP_PTR_NEW(ptr) do { \ 75 ZEND_MAP_PTR(ptr) = zend_map_ptr_new(); \ 76 } while (0) 77 #else 78 # error "Unknown ZEND_MAP_PTR_KIND" 79 #endif 80 81 ZEND_API void zend_map_ptr_reset(void); 82 ZEND_API void *zend_map_ptr_new(void); 83 ZEND_API void zend_map_ptr_extend(size_t last); 84 85 #endif /* ZEND_MAP_PTR_H */ 86
