1/* 2 * Copyright (c) 2011-2012 Apple Inc. All rights reserved. 3 * 4 * @APPLE_APACHE_LICENSE_HEADER_START@ 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 * @APPLE_APACHE_LICENSE_HEADER_END@ 19 */ 20 21/* 22 * IMPORTANT: This header file describes INTERNAL interfaces to libdispatch 23 * which are subject to change in future releases of Mac OS X. Any applications 24 * relying on these interfaces WILL break. 25 */ 26 27#ifndef __OS_OBJECT_PRIVATE__ 28#define __OS_OBJECT_PRIVATE__ 29 30#include <sys/cdefs.h> 31#include <stddef.h> 32#include <os/object.h> 33 34#ifndef __OSX_AVAILABLE_STARTING 35#define __OSX_AVAILABLE_STARTING(x, y) 36#endif 37 38#if __GNUC__ 39#define OS_OBJECT_NOTHROW __attribute__((__nothrow__)) 40#define OS_OBJECT_NONNULL __attribute__((__nonnull__)) 41#define OS_OBJECT_WARN_RESULT __attribute__((__warn_unused_result__)) 42#define OS_OBJECT_MALLOC __attribute__((__malloc__)) 43#define OS_OBJECT_EXPORT extern __attribute__((visibility("default"))) 44#else 45/*! @parseOnly */ 46#define OS_OBJECT_NOTHROW 47/*! @parseOnly */ 48#define OS_OBJECT_NONNULL 49/*! @parseOnly */ 50#define OS_OBJECT_WARN_RESULT 51/*! @parseOnly */ 52#define OS_OBJECT_MALLOC 53#define OS_OBJECT_EXPORT extern 54#endif 55 56#if OS_OBJECT_USE_OBJC && defined(__has_feature) 57#if __has_feature(objc_arc) 58#define _OS_OBJECT_OBJC_ARC 1 59#else 60#define _OS_OBJECT_OBJC_ARC 0 61#endif 62#else 63#define _OS_OBJECT_OBJC_ARC 0 64#endif 65 66#define _OS_OBJECT_GLOBAL_REFCNT INT_MAX 67 68#define _OS_OBJECT_HEADER(isa, ref_cnt, xref_cnt) \ 69 isa; /* must be pointer-sized */ \ 70 int volatile ref_cnt; \ 71 int volatile xref_cnt 72 73#if OS_OBJECT_HAVE_OBJC_SUPPORT 74// Must match size of compiler-generated OBJC_CLASS structure rdar://10640168 75#define _OS_OBJECT_CLASS_HEADER() \ 76 void *_os_obj_objc_class_t[5] 77#else 78#define _OS_OBJECT_CLASS_HEADER() \ 79 void (*_os_obj_xref_dispose)(_os_object_t); \ 80 void (*_os_obj_dispose)(_os_object_t) 81#endif 82 83#define OS_OBJECT_CLASS(name) OS_##name 84 85#if OS_OBJECT_USE_OBJC 86__OSX_AVAILABLE_STARTING(__MAC_10_8,__IPHONE_6_0) 87OS_OBJECT_EXPORT 88@interface OS_OBJECT_CLASS(object) : NSObject 89- (void)_xref_dispose; 90- (void)_dispose; 91@end 92typedef OS_OBJECT_CLASS(object) *_os_object_t; 93#define _OS_OBJECT_DECL_SUBCLASS_INTERFACE(name, super) \ 94 @interface OS_OBJECT_CLASS(name) : OS_OBJECT_CLASS(super) \ 95 <OS_OBJECT_CLASS(name)> \ 96 @end 97#else 98typedef struct _os_object_s *_os_object_t; 99#endif 100 101__BEGIN_DECLS 102 103#if !_OS_OBJECT_OBJC_ARC 104 105__OSX_AVAILABLE_STARTING(__MAC_10_8,__IPHONE_6_0) 106OS_OBJECT_EXPORT OS_OBJECT_MALLOC OS_OBJECT_WARN_RESULT OS_OBJECT_NOTHROW 107_os_object_t 108_os_object_alloc(const void *cls, size_t size); 109 110__OSX_AVAILABLE_STARTING(__MAC_10_9,__IPHONE_7_0) 111OS_OBJECT_EXPORT OS_OBJECT_MALLOC OS_OBJECT_WARN_RESULT OS_OBJECT_NOTHROW 112_os_object_t 113_os_object_alloc_realized(const void *cls, size_t size); 114 115__OSX_AVAILABLE_STARTING(__MAC_10_8,__IPHONE_6_0) 116OS_OBJECT_EXPORT OS_OBJECT_NONNULL OS_OBJECT_NOTHROW 117void _os_object_dealloc(_os_object_t object); 118 119__OSX_AVAILABLE_STARTING(__MAC_10_8,__IPHONE_6_0) 120OS_OBJECT_EXPORT OS_OBJECT_NONNULL OS_OBJECT_NOTHROW 121_os_object_t 122_os_object_retain(_os_object_t object); 123 124__OSX_AVAILABLE_STARTING(__MAC_10_8,__IPHONE_6_0) 125OS_OBJECT_EXPORT OS_OBJECT_NONNULL OS_OBJECT_NOTHROW 126void 127_os_object_release(_os_object_t object); 128 129__OSX_AVAILABLE_STARTING(__MAC_10_8,__IPHONE_6_0) 130OS_OBJECT_EXPORT OS_OBJECT_NONNULL OS_OBJECT_NOTHROW 131_os_object_t 132_os_object_retain_internal(_os_object_t object); 133 134__OSX_AVAILABLE_STARTING(__MAC_10_8,__IPHONE_6_0) 135OS_OBJECT_EXPORT OS_OBJECT_NONNULL OS_OBJECT_NOTHROW 136void 137_os_object_release_internal(_os_object_t object); 138 139#endif // !_OS_OBJECT_OBJC_ARC 140 141__END_DECLS 142 143#endif 144