[apple/xnu.git] / bsd / sys / user.h

/*
 * Copyright (c) 2000-2002 Apple Computer, 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@
 */
/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
/*
 * Copyright (c) 1982, 1986, 1989, 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)user.h	8.2 (Berkeley) 9/23/93
 */

#ifndef	_SYS_USER_H_
#define	_SYS_USER_H_

#include <sys/appleapiopts.h>
#ifndef KERNEL
/* stuff that *used* to be included by user.h, or is now needed */
#include <errno.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/ucred.h>
#include <sys/uio.h>
#endif
#include <sys/resourcevar.h>
#ifdef KERNEL_PRIVATE
#include <sys/signalvar.h>
#endif
#include <sys/vm.h>		/* XXX */
#include <sys/sysctl.h>
 
#ifdef KERNEL
#ifdef __APPLE_API_PRIVATE
#include <sys/eventvar.h>

/*
 * VFS context structure (part of uthread)
 */
struct vfs_context {
	thread_t	vc_thread;		/* pointer to Mach thread */
	kauth_cred_t	vc_ucred;		/* per thread credential */
};

/* XXX Deprecated: xnu source compatability */
#define uu_ucred	uu_context.vc_ucred

#ifdef BSD_KERNEL_PRIVATE
/*
 *	Per-thread U area.
 */
 
struct uthread {
	/* syscall parameters, results and catches */
	user_addr_t uu_arg[8]; /* arguments to current system call */
	int	*uu_ap;			/* pointer to arglist */
    int uu_rval[2];

	/* thread exception handling */
	int	uu_exception;
	mach_exception_code_t uu_code;	/* ``code'' to trap */
	mach_exception_subcode_t uu_subcode;
	char uu_cursig;			/* p_cursig for exc. */
	/* support for syscalls which use continuations */
	struct _select {
			u_int32_t	*ibits, *obits; /* bits to select on */
			uint	nbytes;	/* number of bytes in ibits and obits */
			u_int64_t abstime;
			int poll;
			int error;
			int count;
			int kfcount;
			char * wql;
	} uu_select;			/* saved state for select() */
	/* to support kevent continuations */
	union {
		struct _kevent_scan {
			kevent_callback_t call; /* per-event callback */
			kevent_continue_t cont; /* whole call continuation */
			uint64_t deadline;	/* computed deadline for operation */
			void *data;		/* caller's private data */
		} ss_kevent_scan;		/* saved state for kevent_scan() */
		struct _kevent {
			struct _kevent_scan scan;/* space for the generic data */
			struct fileproc *fp;	 /* fileproc we hold iocount on */
			int fd;			 /* filedescriptor for kq */
			register_t *retval;	 /* place to store return val */
			user_addr_t eventlist;	 /* user-level event list address */
			size_t eventsize;	/* user-level event size (LP64) */
			int eventcount;	 	/* user-level event count */
			int eventout;		 /* number of events output */
		} ss_kevent;			 /* saved state for kevent() */
	} uu_kevent;
	struct _kauth {
		user_addr_t message;	/* message in progress */
	} uu_kauth;
  /* internal support for continuation framework */
    int (*uu_continuation)(int);
    int uu_pri;
    int uu_timo;
	caddr_t uu_wchan;			/* sleeping thread wait channel */
	const char *uu_wmesg;			/* ... wait message */
	int uu_flag;
	int uu_iopol_disk;			/* disk I/O policy */
	struct proc * uu_proc;
	void * uu_userstate;
	wait_queue_set_t uu_wqset;			/* cached across select calls */
	size_t uu_allocsize;				/* ...size of select cache */
	sigset_t uu_siglist;				/* signals pending for the thread */
	sigset_t  uu_sigwait;				/*  sigwait on this thread*/
	sigset_t  uu_sigmask;				/* signal mask for the thread */
	sigset_t  uu_oldmask;				/* signal mask saved before sigpause */
	struct vfs_context uu_context;			/* thread + cred */
	sigset_t  uu_vforkmask;				/* saved signal mask during vfork */

	TAILQ_ENTRY(uthread) uu_list;		/* List of uthreads in proc */

	struct kaudit_record 		*uu_ar;		/* audit record */
	struct task*	uu_aio_task;			/* target task for async io */
     
  /* network support for dlil layer locking */
	u_int32_t	dlil_incremented_read;
	lck_mtx_t	*uu_mtx;

	int		uu_lowpri_window;
	size_t		uu_devbsdunit; 		// to identify which device throttled I/Os are sent to

	struct user_sigaltstack uu_sigstk;
        int		uu_defer_reclaims;
        vnode_t		uu_vreclaims;
	int		uu_notrigger;		/* XXX - flag for autofs */
	vnode_t		uu_cdir;		/* per thread CWD */
	int		uu_dupfd;		/* fd in fdesc_open/dupfdopen */

#ifdef JOE_DEBUG
        int		uu_iocount;
        int		uu_vpindex;
        void 	*	uu_vps[32];
#endif
#if CONFIG_DTRACE
	uint32_t	t_dtrace_errno; /* Most recent errno */
        uint8_t         t_dtrace_stop;  /* indicates a DTrace-desired stop */
        uint8_t         t_dtrace_sig;   /* signal sent via DTrace's raise() */

        union __tdu {
                struct __tds {
                        uint8_t _t_dtrace_on;   /* hit a fasttrap tracepoint */
                        uint8_t _t_dtrace_step; /* about to return to kernel */
                        uint8_t _t_dtrace_ret;  /* handling a return probe */
                        uint8_t _t_dtrace_ast;  /* saved ast flag */
#if __sol64 || defined(__APPLE__)
                        uint8_t _t_dtrace_reg;  /* modified register */
#endif
                } _tds;
                unsigned long _t_dtrace_ft;           /* bitwise or of these flags */
        } _tdu;
#define t_dtrace_ft     _tdu._t_dtrace_ft
#define t_dtrace_on     _tdu._tds._t_dtrace_on
#define t_dtrace_step   _tdu._tds._t_dtrace_step
#define t_dtrace_ret    _tdu._tds._t_dtrace_ret
#define t_dtrace_ast    _tdu._tds._t_dtrace_ast
#if __sol64 || defined(__APPLE__)
#define t_dtrace_reg    _tdu._tds._t_dtrace_reg
#endif

        user_addr_t	t_dtrace_pc;    /* DTrace saved pc from fasttrap */
        user_addr_t	t_dtrace_npc;   /* DTrace next pc from fasttrap */
        user_addr_t	t_dtrace_scrpc; /* DTrace per-thread scratch location */
        user_addr_t	t_dtrace_astpc; /* DTrace return sequence location */

	struct dtrace_ptss_page_entry*	t_dtrace_scratch; /* scratch space entry */

#if __sol64 || defined(__APPLE__)
        uint64_t        t_dtrace_regv;  /* DTrace saved reg from fasttrap */
#endif
#endif /* CONFIG_DTRACE */
	void *		uu_threadlist;
};

typedef struct uthread * uthread_t;

/* Definition of uu_flag */
#define	UT_SAS_OLDMASK	0x00000001	/* need to restore mask before pause */
#define	UT_NO_SIGMASK	0x00000002	/* exited thread; invalid sigmask */
#define UT_NOTCANCELPT	0x00000004             /* not a cancelation point */
#define UT_CANCEL	0x00000008             /* thread marked for cancel */
#define UT_CANCELED	0x00000010            /* thread cancelled */
#define UT_CANCELDISABLE 0x00000020            /* thread cancel disabled */
#define	UT_ALTSTACK	0x00000040	/* this thread has alt stack for signals */
#define UT_THROTTLE_IO	0x00000080	/* this thread issues throttle I/O */
#define UT_PASSIVE_IO	0x00000100	/* this thread issues passive I/O */
#define UT_PROCEXIT	0x00000200	/* this thread completed the  proc exit */
#define UT_RAGE_VNODES	0x00000400	/* rapid age any vnodes created by this thread */	
#define UT_BACKGROUND	0x00000800	/* this thread is in background state */	

#define	UT_VFORK	0x02000000	/* thread has vfork children */
#define	UT_SETUID	0x04000000	/* thread is settugid() */
#define UT_WASSETUID	0x08000000	/* thread was settugid() (in vfork) */

#endif /* BSD_KERNEL_PRIVATE */

#endif /* __APPLE_API_PRIVATE */

#endif	/* KERNEL */

/*
 * Per process structure containing data that isn't needed in core
 * when the process isn't running (esp. when swapped out).
 * This structure may or may not be at the same kernel address
 * in all processes.
 */
 
struct	user {
  /* NOT USED ANYMORE */
};

#endif	/* !_SYS_USER_H_ */
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
5d5c5d0d A	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
8f6c56a5	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
	29	/*
	30	* Copyright (c) 1982, 1986, 1989, 1991, 1993
	31	* The Regents of the University of California. All rights reserved.
	32	*
	33	* Redistribution and use in source and binary forms, with or without
	34	* modification, are permitted provided that the following conditions
	35	* are met:
	36	* 1. Redistributions of source code must retain the above copyright
	37	* notice, this list of conditions and the following disclaimer.
	38	* 2. Redistributions in binary form must reproduce the above copyright
	39	* notice, this list of conditions and the following disclaimer in the
	40	* documentation and/or other materials provided with the distribution.
	41	* 3. All advertising materials mentioning features or use of this software
	42	* must display the following acknowledgement:
	43	* This product includes software developed by the University of
	44	* California, Berkeley and its contributors.
	45	* 4. Neither the name of the University nor the names of its contributors
	46	* may be used to endorse or promote products derived from this software
	47	* without specific prior written permission.
	48	*
	49	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	50	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	51	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	52	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	53	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	54	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	55	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	56	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	57	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	58	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	59	* SUCH DAMAGE.
	60	*
	61	* @(#)user.h 8.2 (Berkeley) 9/23/93
	62	*/
	63
	64	#ifndef _SYS_USER_H_
	65	#define _SYS_USER_H_
	66
9bccf70c	67	#include <sys/appleapiopts.h>
1c79356b A	68	#ifndef KERNEL
	69	/* stuff that used to be included by user.h, or is now needed */
	70	#include <errno.h>
	71	#include <sys/time.h>
	72	#include <sys/resource.h>
	73	#include <sys/ucred.h>
	74	#include <sys/uio.h>
	75	#endif
	76	#include <sys/resourcevar.h>
91447636	77	#ifdef KERNEL_PRIVATE
1c79356b	78	#include <sys/signalvar.h>
91447636	79	#endif
1c79356b A	80	#include <sys/vm.h> /* XXX */
	81	#include <sys/sysctl.h>
	82
	83	#ifdef KERNEL
9bccf70c	84	#ifdef __APPLE_API_PRIVATE
91447636 A	85	#include <sys/eventvar.h>
91447636 A	86
2d21ac55 A	87	/*
	88	* VFS context structure (part of uthread)
	89	*/
	90	struct vfs_context {
	91	thread_t vc_thread; /* pointer to Mach thread */
	92	kauth_cred_t vc_ucred; /* per thread credential */
	93	};
	94
	95	/* XXX Deprecated: xnu source compatability */
	96	#define uu_ucred uu_context.vc_ucred
	97
	98	#ifdef BSD_KERNEL_PRIVATE
1c79356b A	99	/*
1c79356b A	100	* Per-thread U area.
1c79356b	101	*/
2d21ac55	102
1c79356b	103	struct uthread {
1c79356b	104	/* syscall parameters, results and catches */
2d21ac55	105	user_addr_t uu_arg[8]; /* arguments to current system call */
1c79356b	106	int uu_ap; / pointer to arglist */
2d21ac55	107	int uu_rval[2];
1c79356b A	108
1c79356b A	109	/* thread exception handling */
0c530ab8	110	int uu_exception;
2d21ac55 A	111	mach_exception_code_t uu_code; /* ``code'' to trap */
2d21ac55 A	112	mach_exception_subcode_t uu_subcode;
91447636	113	char uu_cursig; /* p_cursig for exc. */
2d21ac55	114	/* support for syscalls which use continuations */
91447636	115	struct _select {
2d21ac55 A	116	u_int32_t ibits, obits; /* bits to select on */
	117	uint nbytes; /* number of bytes in ibits and obits */
	118	u_int64_t abstime;
	119	int poll;
	120	int error;
	121	int count;
	122	int kfcount;
	123	char * wql;
91447636	124	} uu_select; /* saved state for select() */
2d21ac55	125	/* to support kevent continuations */
1c79356b	126	union {
91447636 A	127	struct _kevent_scan {
	128	kevent_callback_t call; /* per-event callback */
	129	kevent_continue_t cont; /* whole call continuation */
	130	uint64_t deadline; /* computed deadline for operation */
	131	void data; / caller's private data */
	132	} ss_kevent_scan; /* saved state for kevent_scan() */
	133	struct _kevent {
	134	struct _kevent_scan scan;/* space for the generic data */
	135	struct fileproc fp; / fileproc we hold iocount on */
	136	int fd; /* filedescriptor for kq */
	137	register_t retval; / place to store return val */
	138	user_addr_t eventlist; /* user-level event list address */
2d21ac55	139	size_t eventsize; /* user-level event size (LP64) */
91447636 A	140	int eventcount; /* user-level event count */
	141	int eventout; /* number of events output */
	142	} ss_kevent; /* saved state for kevent() */
2d21ac55 A	143	} uu_kevent;
	144	struct _kauth {
	145	user_addr_t message; /* message in progress */
	146	} uu_kauth;
1c79356b A	147	/* internal support for continuation framework */
	148	int (*uu_continuation)(int);
	149	int uu_pri;
	150	int uu_timo;
2d21ac55 A	151	caddr_t uu_wchan; /* sleeping thread wait channel */
2d21ac55 A	152	const char uu_wmesg; / ... wait message */
0b4e3aa0	153	int uu_flag;
2d21ac55	154	int uu_iopol_disk; /* disk I/O policy */
0b4e3aa0 A	155	struct proc * uu_proc;
0b4e3aa0 A	156	void * uu_userstate;
2d21ac55 A	157	wait_queue_set_t uu_wqset; /* cached across select calls */
2d21ac55 A	158	size_t uu_allocsize; /* ...size of select cache */
9bccf70c A	159	sigset_t uu_siglist; /* signals pending for the thread */
	160	sigset_t uu_sigwait; /* sigwait on this thread*/
	161	sigset_t uu_sigmask; /* signal mask for the thread */
	162	sigset_t uu_oldmask; /* signal mask saved before sigpause */
2d21ac55	163	struct vfs_context uu_context; /* thread + cred */
9bccf70c A	164	sigset_t uu_vforkmask; /* saved signal mask during vfork */
	165
	166	TAILQ_ENTRY(uthread) uu_list; /* List of uthreads in proc */
55e303ae A	167
	168	struct kaudit_record uu_ar; / audit record */
	169	struct task* uu_aio_task; /* target task for async io */
2d21ac55	170
91447636 A	171	/* network support for dlil layer locking */
	172	u_int32_t dlil_incremented_read;
	173	lck_mtx_t *uu_mtx;
	174
593a1d5f A	175	int uu_lowpri_window;
593a1d5f A	176	size_t uu_devbsdunit; // to identify which device throttled I/Os are sent to
91447636	177
2d21ac55	178	struct user_sigaltstack uu_sigstk;
91447636 A	179	int uu_defer_reclaims;
91447636 A	180	vnode_t uu_vreclaims;
2d21ac55 A	181	int uu_notrigger; /* XXX - flag for autofs */
	182	vnode_t uu_cdir; /* per thread CWD */
	183	int uu_dupfd; /* fd in fdesc_open/dupfdopen */
	184
91447636 A	185	#ifdef JOE_DEBUG
	186	int uu_iocount;
	187	int uu_vpindex;
	188	void * uu_vps[32];
	189	#endif
2d21ac55 A	190	#if CONFIG_DTRACE
	191	uint32_t t_dtrace_errno; /* Most recent errno */
	192	uint8_t t_dtrace_stop; /* indicates a DTrace-desired stop */
	193	uint8_t t_dtrace_sig; /* signal sent via DTrace's raise() */
	194
	195	union __tdu {
	196	struct __tds {
	197	uint8_t _t_dtrace_on; /* hit a fasttrap tracepoint */
	198	uint8_t _t_dtrace_step; /* about to return to kernel */
	199	uint8_t _t_dtrace_ret; /* handling a return probe */
	200	uint8_t _t_dtrace_ast; /* saved ast flag */
	201	#if __sol64 \|\| defined(__APPLE__)
	202	uint8_t _t_dtrace_reg; /* modified register */
	203	#endif
	204	} _tds;
	205	unsigned long _t_dtrace_ft; /* bitwise or of these flags */
	206	} _tdu;
	207	#define t_dtrace_ft _tdu._t_dtrace_ft
	208	#define t_dtrace_on _tdu._tds._t_dtrace_on
	209	#define t_dtrace_step _tdu._tds._t_dtrace_step
	210	#define t_dtrace_ret _tdu._tds._t_dtrace_ret
	211	#define t_dtrace_ast _tdu._tds._t_dtrace_ast
	212	#if __sol64 \|\| defined(__APPLE__)
	213	#define t_dtrace_reg _tdu._tds._t_dtrace_reg
	214	#endif
	215
	216	user_addr_t t_dtrace_pc; /* DTrace saved pc from fasttrap */
	217	user_addr_t t_dtrace_npc; /* DTrace next pc from fasttrap */
	218	user_addr_t t_dtrace_scrpc; /* DTrace per-thread scratch location */
	219	user_addr_t t_dtrace_astpc; /* DTrace return sequence location */
	220
	221	struct dtrace_ptss_page_entry* t_dtrace_scratch; /* scratch space entry */
	222
	223	#if __sol64 \|\| defined(__APPLE__)
	224	uint64_t t_dtrace_regv; /* DTrace saved reg from fasttrap */
	225	#endif
	226	#endif /* CONFIG_DTRACE */
	227	void * uu_threadlist;
1c79356b	228	};
0b4e3aa0	229
1c79356b	230	typedef struct uthread * uthread_t;
9bccf70c A	231
9bccf70c A	232	/* Definition of uu_flag */
91447636 A	233	#define UT_SAS_OLDMASK 0x00000001 /* need to restore mask before pause */
	234	#define UT_NO_SIGMASK 0x00000002 /* exited thread; invalid sigmask */
	235	#define UT_NOTCANCELPT 0x00000004 /* not a cancelation point */
	236	#define UT_CANCEL 0x00000008 /* thread marked for cancel */
	237	#define UT_CANCELED 0x00000010 /* thread cancelled */
	238	#define UT_CANCELDISABLE 0x00000020 /* thread cancel disabled */
2d21ac55 A	239	#define UT_ALTSTACK 0x00000040 /* this thread has alt stack for signals */
	240	#define UT_THROTTLE_IO 0x00000080 /* this thread issues throttle I/O */
	241	#define UT_PASSIVE_IO 0x00000100 /* this thread issues passive I/O */
	242	#define UT_PROCEXIT 0x00000200 /* this thread completed the proc exit */
	243	#define UT_RAGE_VNODES 0x00000400 /* rapid age any vnodes created by this thread */
	244	#define UT_BACKGROUND 0x00000800 /* this thread is in background state */
91447636 A	245
	246	#define UT_VFORK 0x02000000 /* thread has vfork children */
	247	#define UT_SETUID 0x04000000 /* thread is settugid() */
	248	#define UT_WASSETUID 0x08000000 /* thread was settugid() (in vfork) */
9bccf70c	249
2d21ac55 A	250	#endif /* BSD_KERNEL_PRIVATE */
2d21ac55 A	251
9bccf70c A	252	#endif /* __APPLE_API_PRIVATE */
9bccf70c A	253
1c79356b A	254	#endif /* KERNEL */
	255
	256	/*
	257	* Per process structure containing data that isn't needed in core
	258	* when the process isn't running (esp. when swapped out).
	259	* This structure may or may not be at the same kernel address
	260	* in all processes.
	261	*/
	262
	263	struct user {
	264	/* NOT USED ANYMORE */
	265	};
	266
	267	#endif /* !_SYS_USER_H_ */