[apple/libc.git] / pthreads / pthread_internals.h

/*
 * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * 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. 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_LICENSE_HEADER_END@
 */
/*
 * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991  
 *              All Rights Reserved 
 *  
 * Permission to use, copy, modify, and distribute this software and 
 * its documentation for any purpose and without fee is hereby granted, 
 * provided that the above copyright notice appears in all copies and 
 * that both the copyright notice and this permission notice appear in 
 * supporting documentation. 
 *  
 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE. 
 *  
 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 
 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 
 * 
 */
/*
 * MkLinux
 */

/*
 * POSIX Threads - IEEE 1003.1c
 */

#ifndef _POSIX_PTHREAD_INTERNALS_H
#define _POSIX_PTHREAD_INTERNALS_H


#include <assert.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <mach/mach.h>
#include <mach/mach_error.h>


#ifndef __POSIX_LIB__
#define __POSIX_LIB__
#endif

#include "posix_sched.h"		/* For POSIX scheduling policy & parameter */
#include <sys/queue.h>		/* For POSIX scheduling policy & parameter */
#include "pthread_machdep.h"		/* Machine-dependent definitions. */
#include "pthread_spinlock.h"		/* spinlock definitions. */

LIST_HEAD(__pthread_list, _pthread);
extern struct __pthread_list __pthread_head;        /* head of list of open files */
extern pthread_lock_t _pthread_list_lock;
/*
 * Compiled-in limits
 */
#undef _POSIX_THREAD_KEYS_MAX
#define _POSIX_THREAD_KEYS_MAX	      128

/*
 * Threads
 */
typedef struct _pthread
{
	long	       sig;	      /* Unique signature for this structure */
	struct _pthread_handler_rec *cleanup_stack;
	pthread_lock_t lock;	      /* Used for internal mutex on structure */
	u_int32_t	detached:8,
			inherit:8,
			policy:8,
			pad:8;
	size_t	       guardsize;	/* size in bytes to guard stack overflow */
	int	       pad0;
	struct sched_param param;
	struct _pthread_mutex *mutexes;
	struct _pthread *joiner;
	int			pad1;
	void           *exit_value;
	semaphore_t    death;		/* pthread_join() uses this to wait for death's call */
	mach_port_t    kernel_thread; /* kernel thread this thread is bound to */
	void	       *(*fun)(void*);/* Thread start routine */
        void	       *arg;	      /* Argment for thread start routine */
	int	       cancel_state;  /* Whether thread can be cancelled */
	int	       err_no;		/* thread-local errno */
	void	       *tsd[_POSIX_THREAD_KEYS_MAX];  /* Thread specific data */
        void           *stackaddr;     /* Base of the stack (is aligned on vm_page_size boundary */
        size_t         stacksize;      /* Size of the stack (is a multiple of vm_page_size and >= PTHREAD_STACK_MIN) */
	mach_port_t    reply_port;     /* Cached MiG reply port */
        void           *cthread_self;  /* cthread_self() if somebody calls cthread_set_self() */
        boolean_t      freeStackOnExit; /* Should we free the stack when we're done? */
	LIST_ENTRY(_pthread) plist;
} *pthread_t;

// suppress pthread_t typedef in signal.h
#define _PTHREAD_T_DECLARED

/*
 * This will cause a compile-time failure if someone moved the tsd field
 * and we need to change _PTHREAD_TSD_OFFSET in pthread_machdep.h
 */
typedef char _need_to_change_PTHREAD_TSD_OFFSET[(_PTHREAD_TSD_OFFSET == offsetof(struct _pthread, tsd[0])) ? 0 : -1] ;

/*
 * Thread attributes
 */
typedef struct 
{
	long	       sig;	      /* Unique signature for this structure */
	pthread_lock_t lock;	      /* Used for internal mutex on structure */
	u_int32_t	detached:8,
			inherit:8,
			policy:8,
			reserved1:8;
	size_t	       guardsize;	/* size in bytes to guard stack overflow */
	int	       reserved2;
	struct sched_param param;
        void           *stackaddr;     /* Base of the stack (is aligned on vm_page_size boundary */
        size_t         stacksize;      /* Size of the stack (is a multiple of vm_page_size and >= PTHREAD_STACK_MIN) */
	boolean_t      freeStackOnExit;/* Should we free the stack when we exit? */
} pthread_attr_t;

// suppress pthread_attr_t typedef in sys/signal.h
#define _PTHREAD_ATTR_T_DECLARED

/*
 * Mutex attributes
 */
typedef struct 
{
	long sig;		     /* Unique signature for this structure */
	int prioceiling;
	u_int32_t protocol:2,		/* protocol attribute */
		type:2,			/* mutex type */
		rfu:28;
} pthread_mutexattr_t;

/*
 * Mutex variables
 */
typedef struct _pthread_mutex
{
	long	       sig;	      /* Unique signature for this structure */
	pthread_lock_t lock;	      /* Used for internal mutex on structure */
	u_int32_t      waiters;       /* Count of threads waiting for this mutex */
	pthread_t      owner;	      /* Which thread has this mutex locked */
	semaphore_t    sem;	      /* Semaphore used for waiting */
	u_int32_t	 protocol:2,		/* protocol */
		type:2,			/* mutex type */
		rfu:12,
		lock_count:16;
	struct _pthread_mutex *next, *prev;  /* List of other mutexes he owns */
	struct _pthread_cond *busy;   /* List of condition variables using this mutex */
	int16_t       prioceiling;
	int16_t	       priority;      /* Priority to restore when mutex unlocked */
	semaphore_t	order;
} pthread_mutex_t;

/*
 * Condition variable attributes
 */
typedef struct 
{
	long	       sig;	     /* Unique signature for this structure */
	int unsupported;
} pthread_condattr_t;

/*
 * Condition variables
 */
typedef struct _pthread_cond
{
	long	       sig;	     /* Unique signature for this structure */
	pthread_lock_t lock;	     /* Used for internal mutex on structure */
	semaphore_t    sem;	     /* Kernel semaphore */
	struct _pthread_cond *next, *prev;  /* List of condition variables using mutex */
	struct _pthread_mutex *busy; /* mutex associated with variable */
	u_int32_t	waiters:16,	/* Number of threads waiting */
		   sigspending:16;	/* Number of outstanding signals */
} pthread_cond_t;

/*
 * Initialization control (once) variables
 */
typedef struct 
{
	long	       sig;	      /* Unique signature for this structure */
	pthread_lock_t lock;	      /* Used for internal mutex on structure */
} pthread_once_t;

typedef struct {
	long	       sig;	      /* Unique signature for this structure */
	int             pshared;
	int		rfu[2];		/* reserved for future use */
} pthread_rwlockattr_t;

typedef struct {
	long 		sig;
        pthread_mutex_t lock;   /* monitor lock */
	int             state;
	pthread_cond_t  read_signal;
	pthread_cond_t  write_signal;
	int             blocked_writers;
	int             pshared;
	int		rfu[3];
} pthread_rwlock_t;

#include "pthread.h"

#define _PTHREAD_DEFAULT_INHERITSCHED	PTHREAD_INHERIT_SCHED
#define _PTHREAD_DEFAULT_PROTOCOL	PTHREAD_PRIO_NONE
#define _PTHREAD_DEFAULT_PRIOCEILING	0
#define _PTHREAD_DEFAULT_POLICY		SCHED_OTHER
#define _PTHREAD_DEFAULT_STACKSIZE	0x80000	  /* 512K */

#define _PTHREAD_NO_SIG			0x00000000
#define _PTHREAD_MUTEX_ATTR_SIG		0x4D545841  /* 'MTXA' */
#define _PTHREAD_MUTEX_SIG		0x4D555458  /* 'MUTX' */
#define _PTHREAD_MUTEX_SIG_init		0x32AAABA7  /* [almost] ~'MUTX' */
#define _PTHREAD_COND_ATTR_SIG		0x434E4441  /* 'CNDA' */
#define _PTHREAD_COND_SIG		0x434F4E44  /* 'COND' */
#define _PTHREAD_COND_SIG_init		0x3CB0B1BB  /* [almost] ~'COND' */
#define _PTHREAD_ATTR_SIG		0x54484441  /* 'THDA' */
#define _PTHREAD_ONCE_SIG		0x4F4E4345  /* 'ONCE' */
#define _PTHREAD_ONCE_SIG_init		0x30B1BCBA  /* [almost] ~'ONCE' */
#define _PTHREAD_SIG			0x54485244  /* 'THRD' */
#define _PTHREAD_RWLOCK_ATTR_SIG	0x52574C41  /* 'RWLA' */
#define _PTHREAD_RWLOCK_SIG		0x52574C4B  /* 'RWLK' */
#define _PTHREAD_RWLOCK_SIG_init	0x2DA8B3B4  /* [almost] ~'RWLK' */

#define _PTHREAD_CREATE_PARENT	     4
#define _PTHREAD_EXITED		     8

#if defined(DEBUG)
#define _PTHREAD_MUTEX_OWNER_SELF	pthread_self()
#else
#define _PTHREAD_MUTEX_OWNER_SELF	(pthread_t)0x12141968
#endif
#define _PTHREAD_MUTEX_OWNER_SWITCHING	(pthread_t)(~0)

#define _PTHREAD_CANCEL_STATE_MASK   0xFE
#define _PTHREAD_CANCEL_TYPE_MASK    0xFD
#define _PTHREAD_CANCEL_PENDING	     0x10  /* pthread_cancel() has been called for this thread */

extern boolean_t swtch_pri(int);

#ifndef ESUCCESS
#define ESUCCESS 0
#endif

#ifndef PTHREAD_MACH_CALL
#define	PTHREAD_MACH_CALL(expr, ret) (ret) = (expr)
#endif

/* Prototypes. */

/* Functions defined in machine-dependent files. */
extern vm_address_t _sp(void);
extern vm_address_t _adjust_sp(vm_address_t sp);
extern void _pthread_setup(pthread_t th, void (*f)(pthread_t), void *sp, int suspended, int needresume);

extern void _pthread_tsd_cleanup(pthread_t self);

__private_extern__ semaphore_t new_sem_from_pool(void);
__private_extern__ void restore_sem_to_pool(semaphore_t);
#endif /* _POSIX_PTHREAD_INTERNALS_H */
Commit	Line	Data
9385eb3d A	1	/*
	2	* Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
59e0d9fe A	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
59e0d9fe A	7	*
9385eb3d A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
e9ce8d39 A	25	/*
	26	* Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991
	27	* All Rights Reserved
	28	*
	29	* Permission to use, copy, modify, and distribute this software and
	30	* its documentation for any purpose and without fee is hereby granted,
	31	* provided that the above copyright notice appears in all copies and
	32	* that both the copyright notice and this permission notice appear in
	33	* supporting documentation.
	34	*
	35	* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
	36	* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
	37	* FOR A PARTICULAR PURPOSE.
	38	*
	39	* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
	40	* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
	41	* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
	42	* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
	43	* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	44	*
	45	*/
	46	/*
	47	* MkLinux
	48	*/
	49
	50	/*
	51	* POSIX Threads - IEEE 1003.1c
	52	*/
	53
	54	#ifndef _POSIX_PTHREAD_INTERNALS_H
	55	#define _POSIX_PTHREAD_INTERNALS_H
	56
	57
	58	#include <assert.h>
9385eb3d A	59	#include <stddef.h>
	60	#include <stdint.h>
	61	#include <stdlib.h>
	62	#include <mach/mach.h>
e9ce8d39	63	#include <mach/mach_error.h>
e9ce8d39 A	64
	65
	66	#ifndef __POSIX_LIB__
	67	#define __POSIX_LIB__
	68	#endif
	69
	70	#include "posix_sched.h" /* For POSIX scheduling policy & parameter */
9385eb3d	71	#include <sys/queue.h> /* For POSIX scheduling policy & parameter */
e9ce8d39	72	#include "pthread_machdep.h" /* Machine-dependent definitions. */
9385eb3d	73	#include "pthread_spinlock.h" /* spinlock definitions. */
e9ce8d39	74
9385eb3d A	75	LIST_HEAD(__pthread_list, _pthread);
	76	extern struct __pthread_list __pthread_head; /* head of list of open files */
	77	extern pthread_lock_t _pthread_list_lock;
e9ce8d39 A	78	/*
	79	* Compiled-in limits
	80	*/
	81	#undef _POSIX_THREAD_KEYS_MAX
	82	#define _POSIX_THREAD_KEYS_MAX 128
	83
	84	/*
	85	* Threads
	86	*/
	87	typedef struct _pthread
	88	{
	89	long sig; /* Unique signature for this structure */
	90	struct _pthread_handler_rec *cleanup_stack;
	91	pthread_lock_t lock; /* Used for internal mutex on structure */
9385eb3d A	92	u_int32_t detached:8,
	93	inherit:8,
	94	policy:8,
	95	pad:8;
	96	size_t guardsize; /* size in bytes to guard stack overflow */
	97	int pad0;
e9ce8d39 A	98	struct sched_param param;
e9ce8d39 A	99	struct _pthread_mutex *mutexes;
5b2abdfb A	100	struct _pthread *joiner;
	101	int pad1;
	102	void *exit_value;
	103	semaphore_t death; /* pthread_join() uses this to wait for death's call */
e9ce8d39 A	104	mach_port_t kernel_thread; /* kernel thread this thread is bound to */
	105	void (fun)(void);/ Thread start routine */
	106	void arg; / Argment for thread start routine */
	107	int cancel_state; /* Whether thread can be cancelled */
5b2abdfb	108	int err_no; /* thread-local errno */
e9ce8d39 A	109	void tsd[_POSIX_THREAD_KEYS_MAX]; / Thread specific data */
	110	void stackaddr; / Base of the stack (is aligned on vm_page_size boundary */
	111	size_t stacksize; /* Size of the stack (is a multiple of vm_page_size and >= PTHREAD_STACK_MIN) */
	112	mach_port_t reply_port; /* Cached MiG reply port */
	113	void cthread_self; / cthread_self() if somebody calls cthread_set_self() */
9385eb3d A	114	boolean_t freeStackOnExit; /* Should we free the stack when we're done? */
9385eb3d A	115	LIST_ENTRY(_pthread) plist;
e9ce8d39 A	116	} *pthread_t;
e9ce8d39 A	117
59e0d9fe A	118	// suppress pthread_t typedef in signal.h
	119	#define _PTHREAD_T_DECLARED
	120
9385eb3d A	121	/*
	122	* This will cause a compile-time failure if someone moved the tsd field
	123	* and we need to change _PTHREAD_TSD_OFFSET in pthread_machdep.h
	124	*/
	125	typedef char _need_to_change_PTHREAD_TSD_OFFSET[(_PTHREAD_TSD_OFFSET == offsetof(struct _pthread, tsd[0])) ? 0 : -1] ;
e9ce8d39 A	126
	127	/*
	128	* Thread attributes
	129	*/
	130	typedef struct
	131	{
	132	long sig; /* Unique signature for this structure */
	133	pthread_lock_t lock; /* Used for internal mutex on structure */
9385eb3d A	134	u_int32_t detached:8,
	135	inherit:8,
	136	policy:8,
	137	reserved1:8;
	138	size_t guardsize; /* size in bytes to guard stack overflow */
	139	int reserved2;
e9ce8d39 A	140	struct sched_param param;
	141	void stackaddr; / Base of the stack (is aligned on vm_page_size boundary */
	142	size_t stacksize; /* Size of the stack (is a multiple of vm_page_size and >= PTHREAD_STACK_MIN) */
	143	boolean_t freeStackOnExit;/* Should we free the stack when we exit? */
	144	} pthread_attr_t;
	145
59e0d9fe A	146	// suppress pthread_attr_t typedef in sys/signal.h
	147	#define _PTHREAD_ATTR_T_DECLARED
	148
e9ce8d39 A	149	/*
	150	* Mutex attributes
	151	*/
	152	typedef struct
	153	{
	154	long sig; /* Unique signature for this structure */
	155	int prioceiling;
5b2abdfb A	156	u_int32_t protocol:2, /* protocol attribute */
	157	type:2, /* mutex type */
	158	rfu:28;
e9ce8d39 A	159	} pthread_mutexattr_t;
	160
	161	/*
	162	* Mutex variables
	163	*/
	164	typedef struct _pthread_mutex
	165	{
	166	long sig; /* Unique signature for this structure */
	167	pthread_lock_t lock; /* Used for internal mutex on structure */
9385eb3d	168	u_int32_t waiters; /* Count of threads waiting for this mutex */
e9ce8d39	169	pthread_t owner; /* Which thread has this mutex locked */
9385eb3d	170	semaphore_t sem; /* Semaphore used for waiting */
5b2abdfb A	171	u_int32_t protocol:2, /* protocol */
	172	type:2, /* mutex type */
	173	rfu:12,
	174	lock_count:16;
e9ce8d39 A	175	struct _pthread_mutex next, prev; /* List of other mutexes he owns */
e9ce8d39 A	176	struct _pthread_cond busy; / List of condition variables using this mutex */
9385eb3d A	177	int16_t prioceiling;
	178	int16_t priority; /* Priority to restore when mutex unlocked */
	179	semaphore_t order;
e9ce8d39 A	180	} pthread_mutex_t;
	181
	182	/*
	183	* Condition variable attributes
	184	*/
	185	typedef struct
	186	{
	187	long sig; /* Unique signature for this structure */
	188	int unsupported;
	189	} pthread_condattr_t;
	190
	191	/*
	192	* Condition variables
	193	*/
	194	typedef struct _pthread_cond
	195	{
	196	long sig; /* Unique signature for this structure */
	197	pthread_lock_t lock; /* Used for internal mutex on structure */
9385eb3d	198	semaphore_t sem; /* Kernel semaphore */
e9ce8d39 A	199	struct _pthread_cond next, prev; /* List of condition variables using mutex */
e9ce8d39 A	200	struct _pthread_mutex busy; / mutex associated with variable */
9385eb3d	201	u_int32_t waiters:16, /* Number of threads waiting */
e9ce8d39 A	202	sigspending:16; /* Number of outstanding signals */
	203	} pthread_cond_t;
	204
	205	/*
	206	* Initialization control (once) variables
	207	*/
	208	typedef struct
	209	{
	210	long sig; /* Unique signature for this structure */
	211	pthread_lock_t lock; /* Used for internal mutex on structure */
	212	} pthread_once_t;
	213
5b2abdfb A	214	typedef struct {
	215	long sig; /* Unique signature for this structure */
	216	int pshared;
	217	int rfu[2]; /* reserved for future use */
	218	} pthread_rwlockattr_t;
	219
	220	typedef struct {
	221	long sig;
	222	pthread_mutex_t lock; /* monitor lock */
	223	int state;
	224	pthread_cond_t read_signal;
	225	pthread_cond_t write_signal;
	226	int blocked_writers;
	227	int pshared;
	228	int rfu[3];
	229	} pthread_rwlock_t;
	230
e9ce8d39 A	231	#include "pthread.h"
	232
	233	#define _PTHREAD_DEFAULT_INHERITSCHED PTHREAD_INHERIT_SCHED
	234	#define _PTHREAD_DEFAULT_PROTOCOL PTHREAD_PRIO_NONE
	235	#define _PTHREAD_DEFAULT_PRIOCEILING 0
	236	#define _PTHREAD_DEFAULT_POLICY SCHED_OTHER
	237	#define _PTHREAD_DEFAULT_STACKSIZE 0x80000 /* 512K */
	238
	239	#define _PTHREAD_NO_SIG 0x00000000
	240	#define _PTHREAD_MUTEX_ATTR_SIG 0x4D545841 /* 'MTXA' */
	241	#define _PTHREAD_MUTEX_SIG 0x4D555458 /* 'MUTX' */
	242	#define _PTHREAD_MUTEX_SIG_init 0x32AAABA7 /* [almost] ~'MUTX' */
5b2abdfb	243	#define _PTHREAD_COND_ATTR_SIG 0x434E4441 /* 'CNDA' */
e9ce8d39 A	244	#define _PTHREAD_COND_SIG 0x434F4E44 /* 'COND' */
	245	#define _PTHREAD_COND_SIG_init 0x3CB0B1BB /* [almost] ~'COND' */
	246	#define _PTHREAD_ATTR_SIG 0x54484441 /* 'THDA' */
	247	#define _PTHREAD_ONCE_SIG 0x4F4E4345 /* 'ONCE' */
	248	#define _PTHREAD_ONCE_SIG_init 0x30B1BCBA /* [almost] ~'ONCE' */
	249	#define _PTHREAD_SIG 0x54485244 /* 'THRD' */
5b2abdfb A	250	#define _PTHREAD_RWLOCK_ATTR_SIG 0x52574C41 /* 'RWLA' */
	251	#define _PTHREAD_RWLOCK_SIG 0x52574C4B /* 'RWLK' */
	252	#define _PTHREAD_RWLOCK_SIG_init 0x2DA8B3B4 /* [almost] ~'RWLK' */
e9ce8d39	253
e9ce8d39	254	#define _PTHREAD_CREATE_PARENT 4
5b2abdfb	255	#define _PTHREAD_EXITED 8
e9ce8d39	256
9385eb3d A	257	#if defined(DEBUG)
	258	#define _PTHREAD_MUTEX_OWNER_SELF pthread_self()
	259	#else
	260	#define _PTHREAD_MUTEX_OWNER_SELF (pthread_t)0x12141968
	261	#endif
	262	#define _PTHREAD_MUTEX_OWNER_SWITCHING (pthread_t)(~0)
	263
e9ce8d39 A	264	#define _PTHREAD_CANCEL_STATE_MASK 0xFE
	265	#define _PTHREAD_CANCEL_TYPE_MASK 0xFD
	266	#define _PTHREAD_CANCEL_PENDING 0x10 /* pthread_cancel() has been called for this thread */
	267
	268	extern boolean_t swtch_pri(int);
	269
e9ce8d39 A	270	#ifndef ESUCCESS
	271	#define ESUCCESS 0
	272	#endif
	273
	274	#ifndef PTHREAD_MACH_CALL
	275	#define PTHREAD_MACH_CALL(expr, ret) (ret) = (expr)
	276	#endif
	277
	278	/* Prototypes. */
	279
	280	/* Functions defined in machine-dependent files. */
	281	extern vm_address_t _sp(void);
	282	extern vm_address_t _adjust_sp(vm_address_t sp);
5b2abdfb	283	extern void _pthread_setup(pthread_t th, void (f)(pthread_t), void sp, int suspended, int needresume);
e9ce8d39 A	284
	285	extern void _pthread_tsd_cleanup(pthread_t self);
	286
	287	__private_extern__ semaphore_t new_sem_from_pool(void);
	288	__private_extern__ void restore_sem_to_pool(semaphore_t);
	289	#endif /* _POSIX_PTHREAD_INTERNALS_H */