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https://github.com/darlinghq/darling-objc4.git
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69 lines
2.4 KiB
C
69 lines
2.4 KiB
C
/*
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* Copyright (c) 2017 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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/***********************************************************************
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* objc-locks.h
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* Declarations of all locks used in the runtime.
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**********************************************************************/
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#ifndef _OBJC_LOCKS_H
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#define _OBJC_LOCKS_H
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// fork() safety requires careful tracking of all locks used in the runtime.
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// Thou shalt not declare any locks outside this file.
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// Lock ordering is declared in _objc_fork_prepare()
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// and is enforced by lockdebug.
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extern monitor_t classInitLock;
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extern mutex_t selLock;
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#if CONFIG_USE_CACHE_LOCK
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extern mutex_t cacheUpdateLock;
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#endif
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extern recursive_mutex_t loadMethodLock;
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extern mutex_t crashlog_lock;
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extern spinlock_t objcMsgLogLock;
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extern mutex_t AltHandlerDebugLock;
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extern mutex_t AssociationsManagerLock;
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extern StripedMap<spinlock_t> PropertyLocks;
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extern StripedMap<spinlock_t> StructLocks;
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extern StripedMap<spinlock_t> CppObjectLocks;
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// SideTable lock is buried awkwardly. Call a function to manipulate it.
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extern void SideTableLockAll();
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extern void SideTableUnlockAll();
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extern void SideTableForceResetAll();
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extern void SideTableDefineLockOrder();
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extern void SideTableLocksPrecedeLock(const void *newlock);
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extern void SideTableLocksSucceedLock(const void *oldlock);
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extern void SideTableLocksPrecedeLocks(StripedMap<spinlock_t>& newlocks);
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extern void SideTableLocksSucceedLocks(StripedMap<spinlock_t>& oldlocks);
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#if __OBJC2__
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#include "objc-locks-new.h"
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#else
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#include "objc-locks-old.h"
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#endif
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#endif
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