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 # define ZEND_MAP_PTR_REAL_BASE(base) \ 50 (base) 51 # define ZEND_MAP_PTR_SET_REAL_BASE(base, ptr) do { \ 52 base = (ptr); \ 53 } while (0) 54 #elif ZEND_MAP_PTR_KIND == ZEND_MAP_PTR_KIND_PTR_OR_OFFSET 55 # define ZEND_MAP_PTR(ptr) \ 56 ptr ## __ptr 57 # define ZEND_MAP_PTR_DEF(type, name) \ 58 type * ZEND_MAP_PTR(name) 59 # define ZEND_MAP_PTR_IS_OFFSET(ptr) \ 60 (((uintptr_t)ZEND_MAP_PTR(ptr)) & 1L) 61 # define ZEND_MAP_PTR_OFFSET2PTR(ptr) \ 62 ((void**)((char*)CG(map_ptr_base) + (uintptr_t)ZEND_MAP_PTR(ptr))) 63 # define ZEND_MAP_PTR_PTR2OFFSET(ptr) \ 64 ((void*)(((char*)(ptr)) - ((char*)CG(map_ptr_base)))) 65 # define ZEND_MAP_PTR_GET(ptr) \ 66 (*(ZEND_MAP_PTR_IS_OFFSET(ptr) ? \ 67 ZEND_MAP_PTR_OFFSET2PTR(ptr) : \ 68 ((void**)(ZEND_MAP_PTR(ptr))))) 69 # define ZEND_MAP_PTR_SET(ptr, val) do { \ 70 void **__p = (void**)(ZEND_MAP_PTR(ptr)); \ 71 if (ZEND_MAP_PTR_IS_OFFSET(ptr)) { \ 72 __p = ZEND_MAP_PTR_OFFSET2PTR(ptr); \ 73 } \ 74 *__p = (val); \ 75 } while (0) 76 # define ZEND_MAP_PTR_INIT(ptr, val) do { \ 77 ZEND_MAP_PTR(ptr) = (val); \ 78 } while (0) 79 # define ZEND_MAP_PTR_NEW(ptr) do { \ 80 ZEND_MAP_PTR(ptr) = zend_map_ptr_new(); \ 81 } while (0) 82 # define ZEND_MAP_PTR_REAL_BASE(base) \ 83 ((void*)(((uintptr_t)(base)) + 1)) 84 # define ZEND_MAP_PTR_SET_REAL_BASE(base, ptr) do { \ 85 base = (void*)(((uintptr_t)(ptr)) - 1); \ 86 } while (0) 87 #else 88 # error "Unknown ZEND_MAP_PTR_KIND" 89 #endif 90 91 ZEND_API void zend_map_ptr_reset(void); 92 ZEND_API void *zend_map_ptr_new(void); 93 ZEND_API void zend_map_ptr_extend(size_t last); 94 95 #endif /* ZEND_MAP_PTR_H */ 96
