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https://github.com/darlinghq/darling-objc4.git
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255 lines
12 KiB
C
255 lines
12 KiB
C
/*
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* Copyright (c) 2004-2007 Apple Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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#ifndef _OBJC_AUTO_H_
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#define _OBJC_AUTO_H_
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#include <objc/objc.h>
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#include <malloc/malloc.h>
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#include <stdint.h>
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#include <stddef.h>
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#include <string.h>
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#include <Availability.h>
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#include <TargetConditionals.h>
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#include <sys/types.h>
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#include <libkern/OSAtomic.h>
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// Define OBJC_SILENCE_GC_DEPRECATIONS=1 to temporarily
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// silence deprecation warnings for GC functions.
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#if OBJC_SILENCE_GC_DEPRECATIONS
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# define OBJC_GC_DEPRECATED(message)
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#elif __has_extension(attribute_deprecated_with_message)
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# define OBJC_GC_DEPRECATED(message) __attribute__((deprecated(message ". Define OBJC_SILENCE_GC_DEPRECATIONS=1 to temporarily silence this diagnostic.")))
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#else
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# define OBJC_GC_DEPRECATED(message) __attribute__((deprecated))
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#endif
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enum {
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OBJC_RATIO_COLLECTION = (0 << 0),
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OBJC_GENERATIONAL_COLLECTION = (1 << 0),
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OBJC_FULL_COLLECTION = (2 << 0),
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OBJC_EXHAUSTIVE_COLLECTION = (3 << 0),
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OBJC_COLLECT_IF_NEEDED = (1 << 3),
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OBJC_WAIT_UNTIL_DONE = (1 << 4)
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};
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enum {
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OBJC_CLEAR_RESIDENT_STACK = (1 << 0)
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};
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#if !defined(OBJC_NO_GC) || \
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(OBJC_DECLARE_SYMBOLS && !defined(OBJC_NO_GC_API))
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/* Out-of-line declarations */
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OBJC_EXPORT void objc_collect(unsigned long options)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.6, 10.8, "it does nothing");
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OBJC_EXPORT BOOL objc_collectingEnabled(void)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.5, 10.8, "it always returns NO");
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OBJC_EXPORT malloc_zone_t *objc_collectableZone(void)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.7, 10.8, "it always returns nil");
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OBJC_EXPORT void objc_setCollectionThreshold(size_t threshold)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.5, 10.8, "it does nothing");
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OBJC_EXPORT void objc_setCollectionRatio(size_t ratio)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.5, 10.8, "it does nothing");
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OBJC_EXPORT BOOL objc_atomicCompareAndSwapPtr(id predicate, id replacement, volatile id *objectLocation)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.6, 10.8, "use OSAtomicCompareAndSwapPtr instead");
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OBJC_EXPORT BOOL objc_atomicCompareAndSwapPtrBarrier(id predicate, id replacement, volatile id *objectLocation)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.6, 10.8, "use OSAtomicCompareAndSwapPtrBarrier instead");
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OBJC_EXPORT BOOL objc_atomicCompareAndSwapGlobal(id predicate, id replacement, volatile id *objectLocation)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.6, 10.8, "use OSAtomicCompareAndSwapPtr instead");
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OBJC_EXPORT BOOL objc_atomicCompareAndSwapGlobalBarrier(id predicate, id replacement, volatile id *objectLocation)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.6, 10.8, "use OSAtomicCompareAndSwapPtrBarrier instead");
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OBJC_EXPORT BOOL objc_atomicCompareAndSwapInstanceVariable(id predicate, id replacement, volatile id *objectLocation)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.6, 10.8, "use OSAtomicCompareAndSwapPtr instead");
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OBJC_EXPORT BOOL objc_atomicCompareAndSwapInstanceVariableBarrier(id predicate, id replacement, volatile id *objectLocation)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.6, 10.8, "use OSAtomicCompareAndSwapPtrBarrier instead");
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OBJC_EXPORT id objc_assign_strongCast(id val, id *dest)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.4, 10.8, "use a simple assignment instead");
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OBJC_EXPORT id objc_assign_global(id val, id *dest)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.4, 10.8, "use a simple assignment instead");
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OBJC_EXPORT id objc_assign_threadlocal(id val, id *dest)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.7, 10.8, "use a simple assignment instead");
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OBJC_EXPORT id objc_assign_ivar(id value, id dest, ptrdiff_t offset)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.4, 10.8, "use a simple assignment instead");
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OBJC_EXPORT void *objc_memmove_collectable(void *dst, const void *src, size_t size)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.4, 10.8, "use memmove instead");
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OBJC_EXPORT id objc_read_weak(id *location)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.5, 10.8, "use a simple read instead, or convert to zeroing __weak");
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OBJC_EXPORT id objc_assign_weak(id value, id *location)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.5, 10.8, "use a simple assignment instead, or convert to zeroing __weak");
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OBJC_EXPORT void objc_registerThreadWithCollector(void)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.6, 10.8, "it does nothing");
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OBJC_EXPORT void objc_unregisterThreadWithCollector(void)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.6, 10.8, "it does nothing");
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OBJC_EXPORT void objc_assertRegisteredThreadWithCollector(void)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.6, 10.8, "it does nothing");
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OBJC_EXPORT void objc_clear_stack(unsigned long options)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.5, 10.8, "it does nothing");
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OBJC_EXPORT BOOL objc_is_finalized(void *ptr)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.4, 10.8, "it always returns NO");
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OBJC_EXPORT void objc_finalizeOnMainThread(Class cls)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.5, 10.5, "it does nothing");
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OBJC_EXPORT BOOL objc_collecting_enabled(void)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.4, 10.5, "it always returns NO");
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OBJC_EXPORT void objc_set_collection_threshold(size_t threshold)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.4, 10.5, "it does nothing");
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OBJC_EXPORT void objc_set_collection_ratio(size_t ratio)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.4, 10.5, "it does nothing");
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OBJC_EXPORT void objc_start_collector_thread(void)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.4, 10.5, "it does nothing");
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OBJC_EXPORT void objc_startCollectorThread(void)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.5, 10.7, "it does nothing");
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OBJC_EXPORT id objc_allocate_object(Class cls, int extra)
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OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE(10.4, 10.4, "use class_createInstance instead");
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/* !defined(OBJC_NO_GC) */
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#else
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/* defined(OBJC_NO_GC) */
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/* Inline declarations */
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_collect(unsigned long options __unused) { }
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OBJC_GC_DEPRECATED("it always returns NO")
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static OBJC_INLINE BOOL objc_collectingEnabled(void) { return NO; }
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#if TARGET_OS_OSX
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OBJC_GC_DEPRECATED("it always returns nil")
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static OBJC_INLINE malloc_zone_t *objc_collectableZone(void) { return nil; }
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#endif
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_setCollectionThreshold(size_t threshold __unused) { }
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_setCollectionRatio(size_t ratio __unused) { }
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_startCollectorThread(void) { }
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#if __has_feature(objc_arc)
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/* Covers for GC memory operations are unavailable in ARC */
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#else
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OBJC_GC_DEPRECATED("use OSAtomicCompareAndSwapPtr instead")
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static OBJC_INLINE BOOL objc_atomicCompareAndSwapPtr(id predicate, id replacement, volatile id *objectLocation)
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{ return OSAtomicCompareAndSwapPtr((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
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OBJC_GC_DEPRECATED("use OSAtomicCompareAndSwapPtrBarrier instead")
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static OBJC_INLINE BOOL objc_atomicCompareAndSwapPtrBarrier(id predicate, id replacement, volatile id *objectLocation)
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{ return OSAtomicCompareAndSwapPtrBarrier((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
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OBJC_GC_DEPRECATED("use OSAtomicCompareAndSwapPtr instead")
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static OBJC_INLINE BOOL objc_atomicCompareAndSwapGlobal(id predicate, id replacement, volatile id *objectLocation)
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{ return objc_atomicCompareAndSwapPtr(predicate, replacement, objectLocation); }
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OBJC_GC_DEPRECATED("use OSAtomicCompareAndSwapPtrBarrier instead")
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static OBJC_INLINE BOOL objc_atomicCompareAndSwapGlobalBarrier(id predicate, id replacement, volatile id *objectLocation)
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{ return objc_atomicCompareAndSwapPtrBarrier(predicate, replacement, objectLocation); }
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OBJC_GC_DEPRECATED("use OSAtomicCompareAndSwapPtr instead")
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static OBJC_INLINE BOOL objc_atomicCompareAndSwapInstanceVariable(id predicate, id replacement, volatile id *objectLocation)
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{ return objc_atomicCompareAndSwapPtr(predicate, replacement, objectLocation); }
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OBJC_GC_DEPRECATED("use OSAtomicCompareAndSwapPtrBarrier instead")
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static OBJC_INLINE BOOL objc_atomicCompareAndSwapInstanceVariableBarrier(id predicate, id replacement, volatile id *objectLocation)
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{ return objc_atomicCompareAndSwapPtrBarrier(predicate, replacement, objectLocation); }
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OBJC_GC_DEPRECATED("use a simple assignment instead")
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static OBJC_INLINE id objc_assign_strongCast(id val, id *dest)
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{ return (*dest = val); }
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OBJC_GC_DEPRECATED("use a simple assignment instead")
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static OBJC_INLINE id objc_assign_global(id val, id *dest)
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{ return (*dest = val); }
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OBJC_GC_DEPRECATED("use a simple assignment instead")
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static OBJC_INLINE id objc_assign_threadlocal(id val, id *dest)
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{ return (*dest = val); }
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OBJC_GC_DEPRECATED("use a simple assignment instead")
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static OBJC_INLINE id objc_assign_ivar(id val, id dest, ptrdiff_t offset)
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{ return (*(id*)((intptr_t)(char *)dest+offset) = val); }
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OBJC_GC_DEPRECATED("use a simple read instead, or convert to zeroing __weak")
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static OBJC_INLINE id objc_read_weak(id *location)
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{ return *location; }
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OBJC_GC_DEPRECATED("use a simple assignment instead, or convert to zeroing __weak")
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static OBJC_INLINE id objc_assign_weak(id value, id *location)
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{ return (*location = value); }
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/* MRC */
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#endif
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OBJC_GC_DEPRECATED("use memmove instead")
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static OBJC_INLINE void *objc_memmove_collectable(void *dst, const void *src, size_t size)
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{ return memmove(dst, src, size); }
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_finalizeOnMainThread(Class cls __unused) { }
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OBJC_GC_DEPRECATED("it always returns NO")
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static OBJC_INLINE BOOL objc_is_finalized(void *ptr __unused) { return NO; }
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_clear_stack(unsigned long options __unused) { }
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OBJC_GC_DEPRECATED("it always returns NO")
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static OBJC_INLINE BOOL objc_collecting_enabled(void) { return NO; }
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_set_collection_threshold(size_t threshold __unused) { }
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_set_collection_ratio(size_t ratio __unused) { }
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_start_collector_thread(void) { }
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#if __has_feature(objc_arc)
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extern id objc_allocate_object(Class cls, int extra) UNAVAILABLE_ATTRIBUTE;
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#else
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OBJC_EXPORT id class_createInstance(Class cls, size_t extraBytes)
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OBJC_AVAILABLE(10.0, 2.0, 9.0, 1.0, 2.0);
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OBJC_GC_DEPRECATED("use class_createInstance instead")
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static OBJC_INLINE id objc_allocate_object(Class cls, int extra)
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{ return class_createInstance(cls, (size_t)extra); }
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#endif
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_registerThreadWithCollector() { }
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_unregisterThreadWithCollector() { }
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OBJC_GC_DEPRECATED("it does nothing")
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static OBJC_INLINE void objc_assertRegisteredThreadWithCollector() { }
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/* defined(OBJC_NO_GC) */
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#endif
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#endif
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