/* * Copyright (c) 2019 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* * File: kern/simple_lock_types.h * Author: Avadis Tevanian, Jr., Michael Wayne Young * Date: 1985 * * Simple lock data type definitions */ #ifdef KERNEL_PRIVATE #ifndef _I386_SIMPLE_LOCK_TYPES_H_ #define _I386_SIMPLE_LOCK_TYPES_H_ #include <mach/boolean.h> #include <kern/kern_types.h> #include <sys/appleapiopts.h> #if defined(MACH_KERNEL_PRIVATE) && defined(__APPLE_API_PRIVATE) #include <i386/hw_lock_types.h> #include <mach_ldebug.h> extern uint64_t LockTimeOutTSC; /* Lock timeout in TSC ticks */ extern uint32_t LockTimeOutUsec;/* Lock timeout in microseconds */ extern uint64_t LockTimeOut; /* Lock timeout in absolute time */ #if MACH_LDEBUG #define USLOCK_DEBUG 1 #else #define USLOCK_DEBUG 0 #endif /* USLOCK_DEBUG */ typedef struct uslock_debug { void *lock_pc; /* pc where lock operation began */ void *lock_thread; /* thread that acquired lock */ void *unlock_thread; /* last thread to release lock */ void *unlock_pc; /* pc where lock operation ended */ unsigned long duration[2]; unsigned short state; unsigned char lock_cpu; unsigned char unlock_cpu; } uslock_debug; typedef struct slock { hw_lock_data_t interlock; /* must be first... see lock.c */ #if USLOCK_DEBUG unsigned short lock_type; /* must be second... see lock.c */ #define USLOCK_TAG 0x5353 uslock_debug debug; #endif } usimple_lock_data_t, *usimple_lock_t; extern void i386_lock_unlock_with_flush( hw_lock_t); #else typedef struct slock { unsigned long lock_data[10]; } usimple_lock_data_t, *usimple_lock_t; #endif /* defined(MACH_KERNEL_PRIVATE) && defined(__APPLE_API_PRIVATE) */ #define USIMPLE_LOCK_NULL ((usimple_lock_t) 0) #if !defined(decl_simple_lock_data) typedef usimple_lock_data_t *simple_lock_t; typedef usimple_lock_data_t simple_lock_data_t; #define decl_simple_lock_data(class, name) \ class simple_lock_data_t name #endif /* !defined(decl_simple_lock_data) */ #endif /* !_I386_SIMPLE_LOCK_TYPES_H_ */ #endif /* KERNEL_PRIVATE */