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

/*
 * Copyright (c) 2000-2012 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@
 */
/* 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>
struct waitq_set;
#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
#ifdef XNU_KERNEL_PRIVATE
#include <sys/resourcevar.h>
#include <sys/signalvar.h>
#endif
#include <sys/vm.h>		/* XXX */
#include <sys/sysctl.h>

#ifdef KERNEL
#ifdef BSD_KERNEL_PRIVATE
#include <sys/pthread_internal.h> /* for uu_kwe entry */
#endif  /* BSD_KERNEL_PRIVATE */
#ifdef __APPLE_API_PRIVATE
#include <sys/eventvar.h>

#if !defined(__LP64__) || defined(XNU_KERNEL_PRIVATE)
/*
 * 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 */
};

#endif /* !__LP64 || XNU_KERNEL_PRIVATE */

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

struct label;		/* MAC label dummy struct */

#define MAXTHREADNAMESIZE 64
/*
 *	Per-thread U area.
 */
 
struct uthread {
	/* syscall parameters, results and catches */
	u_int64_t uu_arg[8]; /* arguments to current system call */
    int uu_rval[2];
	unsigned int syscall_code; /* current syscall code */

	/* thread exception handling */
	mach_exception_code_t uu_code;	/* ``code'' to trap */
	mach_exception_subcode_t uu_subcode;
	int	uu_exception;
	char uu_cursig;			/* p_cursig for exc. */
	/* support for syscalls which use continuations */
	union {
		struct _select_data {
			u_int64_t abstime;
			uint64_t *wqp;
			int count;
			struct select_nocancel_args *args;  /* original syscall arguments */
			int32_t *retval;                    /* place to store return val */
		} ss_select_data;
		struct _kqueue_scan {
			kevent_callback_t call;             /* per-event callback */
			kqueue_continue_t cont;             /* whole call continuation */
			filt_process_data_t process_data;   /* needed for filter processing */
			uint8_t servicer_qos_index;         /* requested qos index of servicer */
			uint64_t deadline;                  /* computed deadline for operation */
			void *data;                         /* caller's private data */
		} ss_kqueue_scan;                           /* saved state for kevent_scan() */
		struct _kevent {
			struct _kqueue_scan scan;           /* space for the generic data */
			struct fileproc *fp;                /* fileproc we hold iocount on */
			int fd;			            /* filedescriptor for kq */
			int eventcount;	                    /* user-level event count */
			int eventout;                       /* number of events output */
			struct filt_process_s process_data; /* space for process data fed thru */
			int32_t *retval;                    /* place to store return val */
			user_addr_t eventlist;              /* user-level event list address */
			uint64_t data_available;            /* [user/kernel] addr of in/out size */
		} ss_kevent;			 /* saved state for kevent() */

		struct _kauth {
			user_addr_t message;	/* message in progress */
		} uu_kauth;

		struct ksyn_waitq_element  uu_kwe;		/* user for pthread synch */

		struct _waitid_data {
			struct waitid_nocancel_args *args;	/* original syscall arguments */
			int32_t *retval;			/* place to store return val */
		} uu_waitid_data;

		struct _wait4_data {
			struct wait4_nocancel_args *args;	/* original syscall arguments */
			int32_t *retval;			/* place to store return val */
		} uu_wait4_data;
	} uu_kevent;

	/* Persistent memory allocations across system calls */
	struct _select {
			u_int32_t	*ibits, *obits; /* bits to select on */
			uint	nbytes;	/* number of bytes in ibits and obits */
	} uu_select;			/* saved state for select() */

  /* 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 */
	struct proc * uu_proc;
	thread_t uu_thread;
	void * uu_userstate;
	struct waitq_set *uu_wqset;		/* waitq state cached across select calls */
	size_t uu_wqstate_sz;			/* ...size of uu_wqset buffer */
	int uu_flag;
	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 */
	sigset_t  uu_vforkmask;				/* saved signal mask during vfork */
	struct vfs_context uu_context;			/* thread + cred */

	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 */
    
	lck_mtx_t	*uu_mtx;

	lck_spin_t	uu_rethrottle_lock;     /* locks was_rethrottled and is_throttled */
	TAILQ_ENTRY(uthread) uu_throttlelist;	/* List of uthreads currently throttled */
	void	*	uu_throttle_info; 	/* pointer to throttled I/Os info */
	int		uu_on_throttlelist;
	int		uu_lowpri_window;
	boolean_t	uu_was_rethrottled;
	boolean_t	uu_is_throttled;
	boolean_t	uu_throttle_bc;

	u_int32_t	uu_network_marks;	/* network control flow marks */

	struct kern_sigaltstack uu_sigstk;
        vnode_t		uu_vreclaims;
	vnode_t		uu_cdir;		/* per thread CWD */
	int		uu_dupfd;		/* fd in fdesc_open/dupfdopen */
        int		uu_defer_reclaims;

	unsigned int uu_kqueue_bound;      /* qos index we are bound to service */
	unsigned int uu_kqueue_flags;      /* if so, the flags being using */

#ifdef JOE_DEBUG
        int		uu_iocount;
        int		uu_vpindex;
        void 	*	uu_vps[32];
        void    *       uu_pcs[32][10];
#endif

#if PROC_REF_DEBUG
#define NUM_PROC_REFS_TO_TRACK 32
#define PROC_REF_STACK_DEPTH 10
	int		uu_proc_refcount;
	int		uu_pindex;
	void	*	uu_proc_ps[NUM_PROC_REFS_TO_TRACK];
	uintptr_t	uu_proc_pcs[NUM_PROC_REFS_TO_TRACK][PROC_REF_STACK_DEPTH];
#endif

#if CONFIG_DTRACE
	uint32_t	t_dtrace_errno; /* Most recent errno */
	siginfo_t	t_dtrace_siginfo;
        uint64_t        t_dtrace_resumepid; /* DTrace's pidresume() pid */
        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;
                u_int32_t _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
	void *		t_dtrace_syscall_args;
#endif /* CONFIG_DTRACE */
	void *		uu_threadlist;
	char *		pth_name;

	/* Document Tracking struct used to track a "tombstone" for a document */
	struct doc_tombstone *t_tombstone;

	struct os_reason *uu_exit_reason;
};

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 */	
/* 0x00000800 unused, used to be UT_BACKGROUND */
/* 0x00001000 unused, used to be UT_BACKGROUND_TRAFFIC_MGT */

#define	UT_VFORK	0x02000000	/* thread has vfork children */
#define	UT_SETUID	0x04000000	/* thread is settugid() */
#define UT_WASSETUID	0x08000000	/* thread was settugid() (in vfork) */
#define	UT_VFORKING	0x10000000	/* thread in vfork() syscall */

#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	/*
39236c6e	2	* Copyright (c) 2000-2012 Apple Inc. All rights reserved.
5d5c5d0d	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>
3e170ce0	68	struct waitq_set;
1c79356b A	69	#ifndef KERNEL
	70	/* stuff that used to be included by user.h, or is now needed */
	71	#include <errno.h>
	72	#include <sys/time.h>
	73	#include <sys/resource.h>
	74	#include <sys/ucred.h>
	75	#include <sys/uio.h>
	76	#endif
b0d623f7	77	#ifdef XNU_KERNEL_PRIVATE
1c79356b A	78	#include <sys/resourcevar.h>
1c79356b A	79	#include <sys/signalvar.h>
91447636	80	#endif
1c79356b A	81	#include <sys/vm.h> /* XXX */
1c79356b A	82	#include <sys/sysctl.h>
6d2010ae	83
1c79356b	84	#ifdef KERNEL
6d2010ae A	85	#ifdef BSD_KERNEL_PRIVATE
	86	#include <sys/pthread_internal.h> /* for uu_kwe entry */
	87	#endif /* BSD_KERNEL_PRIVATE */
9bccf70c	88	#ifdef __APPLE_API_PRIVATE
91447636 A	89	#include <sys/eventvar.h>
91447636 A	90
b0d623f7	91	#if !defined(__LP64__) \|\| defined(XNU_KERNEL_PRIVATE)
2d21ac55 A	92	/*
	93	* VFS context structure (part of uthread)
	94	*/
	95	struct vfs_context {
	96	thread_t vc_thread; /* pointer to Mach thread */
	97	kauth_cred_t vc_ucred; /* per thread credential */
	98	};
	99
b0d623f7 A	100	#endif /* !__LP64 \|\| XNU_KERNEL_PRIVATE */
	101
	102	#ifdef BSD_KERNEL_PRIVATE
2d21ac55 A	103	/* XXX Deprecated: xnu source compatability */
	104	#define uu_ucred uu_context.vc_ucred
	105
316670eb A	106	struct label; /* MAC label dummy struct */
316670eb A	107
b0d623f7	108	#define MAXTHREADNAMESIZE 64
1c79356b A	109	/*
1c79356b A	110	* Per-thread U area.
1c79356b	111	*/
2d21ac55	112
1c79356b	113	struct uthread {
1c79356b	114	/* syscall parameters, results and catches */
d1ecb069	115	u_int64_t uu_arg[8]; /* arguments to current system call */
2d21ac55	116	int uu_rval[2];
fe8ab488	117	unsigned int syscall_code; /* current syscall code */
1c79356b A	118
1c79356b A	119	/* thread exception handling */
2d21ac55 A	120	mach_exception_code_t uu_code; /* ``code'' to trap */
2d21ac55 A	121	mach_exception_subcode_t uu_subcode;
39236c6e	122	int uu_exception;
91447636	123	char uu_cursig; /* p_cursig for exc. */
2d21ac55	124	/* support for syscalls which use continuations */
39236c6e A	125	union {
39236c6e A	126	struct _select_data {
2d21ac55	127	u_int64_t abstime;
3e170ce0	128	uint64_t *wqp;
2d21ac55	129	int count;
39037602 A	130	struct select_nocancel_args args; / original syscall arguments */
39037602 A	131	int32_t retval; / place to store return val */
39236c6e	132	} ss_select_data;
b0d623f7	133	struct _kqueue_scan {
39037602 A	134	kevent_callback_t call; /* per-event callback */
	135	kqueue_continue_t cont; /* whole call continuation */
	136	filt_process_data_t process_data; /* needed for filter processing */
	137	uint8_t servicer_qos_index; /* requested qos index of servicer */
	138	uint64_t deadline; /* computed deadline for operation */
	139	void data; / caller's private data */
	140	} ss_kqueue_scan; /* saved state for kevent_scan() */
91447636	141	struct _kevent {
39037602 A	142	struct _kqueue_scan scan; /* space for the generic data */
	143	struct fileproc fp; / fileproc we hold iocount on */
	144	int fd; /* filedescriptor for kq */
	145	int eventcount; /* user-level event count */
	146	int eventout; /* number of events output */
	147	struct filt_process_s process_data; /* space for process data fed thru */
	148	int32_t retval; / place to store return val */
	149	user_addr_t eventlist; /* user-level event list address */
	150	uint64_t data_available; /* [user/kernel] addr of in/out size */
91447636	151	} ss_kevent; /* saved state for kevent() */
39236c6e A	152
	153	struct _kauth {
	154	user_addr_t message; /* message in progress */
	155	} uu_kauth;
	156
	157	struct ksyn_waitq_element uu_kwe; /* user for pthread synch */
fe8ab488 A	158
	159	struct _waitid_data {
	160	struct waitid_nocancel_args args; / original syscall arguments */
	161	int32_t retval; / place to store return val */
	162	} uu_waitid_data;
	163
	164	struct _wait4_data {
	165	struct wait4_nocancel_args args; / original syscall arguments */
	166	int32_t retval; / place to store return val */
	167	} uu_wait4_data;
2d21ac55	168	} uu_kevent;
39236c6e	169
fe8ab488	170	/* Persistent memory allocations across system calls */
39236c6e A	171	struct _select {
	172	u_int32_t ibits, obits; /* bits to select on */
	173	uint nbytes; /* number of bytes in ibits and obits */
39236c6e A	174	} uu_select; /* saved state for select() */
39236c6e A	175
1c79356b A	176	/* internal support for continuation framework */
	177	int (*uu_continuation)(int);
	178	int uu_pri;
	179	int uu_timo;
2d21ac55 A	180	caddr_t uu_wchan; /* sleeping thread wait channel */
2d21ac55 A	181	const char uu_wmesg; / ... wait message */
0b4e3aa0	182	struct proc * uu_proc;
316670eb	183	thread_t uu_thread;
0b4e3aa0	184	void * uu_userstate;
3e170ce0 A	185	struct waitq_set uu_wqset; / waitq state cached across select calls */
3e170ce0 A	186	size_t uu_wqstate_sz; /* ...size of uu_wqset buffer */
39236c6e	187	int uu_flag;
9bccf70c A	188	sigset_t uu_siglist; /* signals pending for the thread */
	189	sigset_t uu_sigwait; /* sigwait on this thread*/
	190	sigset_t uu_sigmask; /* signal mask for the thread */
	191	sigset_t uu_oldmask; /* signal mask saved before sigpause */
9bccf70c	192	sigset_t uu_vforkmask; /* saved signal mask during vfork */
39236c6e	193	struct vfs_context uu_context; /* thread + cred */
9bccf70c A	194
9bccf70c A	195	TAILQ_ENTRY(uthread) uu_list; /* List of uthreads in proc */
55e303ae	196
b0d623f7	197	struct kaudit_record uu_ar; / audit record */
55e303ae	198	struct task* uu_aio_task; /* target task for async io */
316670eb	199
91447636 A	200	lck_mtx_t *uu_mtx;
91447636 A	201
39037602	202	lck_spin_t uu_rethrottle_lock; /* locks was_rethrottled and is_throttled */
316670eb	203	TAILQ_ENTRY(uthread) uu_throttlelist; /* List of uthreads currently throttled */
39236c6e	204	void * uu_throttle_info; /* pointer to throttled I/Os info */
316670eb	205	int uu_on_throttlelist;
593a1d5f	206	int uu_lowpri_window;
39037602 A	207	boolean_t uu_was_rethrottled;
39037602 A	208	boolean_t uu_is_throttled;
6d2010ae	209	boolean_t uu_throttle_bc;
39236c6e A	210
39236c6e A	211	u_int32_t uu_network_marks; /* network control flow marks */
91447636	212
b0d623f7	213	struct kern_sigaltstack uu_sigstk;
91447636	214	vnode_t uu_vreclaims;
2d21ac55 A	215	vnode_t uu_cdir; /* per thread CWD */
2d21ac55 A	216	int uu_dupfd; /* fd in fdesc_open/dupfdopen */
39236c6e	217	int uu_defer_reclaims;
2d21ac55	218
39037602 A	219	unsigned int uu_kqueue_bound; /* qos index we are bound to service */
	220	unsigned int uu_kqueue_flags; /* if so, the flags being using */
	221
91447636 A	222	#ifdef JOE_DEBUG
	223	int uu_iocount;
	224	int uu_vpindex;
	225	void * uu_vps[32];
6d2010ae	226	void * uu_pcs[32][10];
91447636	227	#endif
3e170ce0 A	228
	229	#if PROC_REF_DEBUG
	230	#define NUM_PROC_REFS_TO_TRACK 32
	231	#define PROC_REF_STACK_DEPTH 10
	232	int uu_proc_refcount;
	233	int uu_pindex;
	234	void * uu_proc_ps[NUM_PROC_REFS_TO_TRACK];
	235	uintptr_t uu_proc_pcs[NUM_PROC_REFS_TO_TRACK][PROC_REF_STACK_DEPTH];
	236	#endif
	237
2d21ac55 A	238	#if CONFIG_DTRACE
2d21ac55 A	239	uint32_t t_dtrace_errno; /* Most recent errno */
39236c6e A	240	siginfo_t t_dtrace_siginfo;
39236c6e A	241	uint64_t t_dtrace_resumepid; /* DTrace's pidresume() pid */
6d2010ae	242	uint8_t t_dtrace_stop; /* indicates a DTrace desired stop */
2d21ac55	243	uint8_t t_dtrace_sig; /* signal sent via DTrace's raise() */
316670eb	244
2d21ac55 A	245	union __tdu {
	246	struct __tds {
	247	uint8_t _t_dtrace_on; /* hit a fasttrap tracepoint */
	248	uint8_t _t_dtrace_step; /* about to return to kernel */
	249	uint8_t _t_dtrace_ret; /* handling a return probe */
	250	uint8_t _t_dtrace_ast; /* saved ast flag */
	251	#if __sol64 \|\| defined(__APPLE__)
	252	uint8_t _t_dtrace_reg; /* modified register */
	253	#endif
	254	} _tds;
b0d623f7	255	u_int32_t _t_dtrace_ft; /* bitwise or of these flags */
2d21ac55 A	256	} _tdu;
	257	#define t_dtrace_ft _tdu._t_dtrace_ft
	258	#define t_dtrace_on _tdu._tds._t_dtrace_on
	259	#define t_dtrace_step _tdu._tds._t_dtrace_step
	260	#define t_dtrace_ret _tdu._tds._t_dtrace_ret
	261	#define t_dtrace_ast _tdu._tds._t_dtrace_ast
	262	#if __sol64 \|\| defined(__APPLE__)
	263	#define t_dtrace_reg _tdu._tds._t_dtrace_reg
	264	#endif
	265
	266	user_addr_t t_dtrace_pc; /* DTrace saved pc from fasttrap */
	267	user_addr_t t_dtrace_npc; /* DTrace next pc from fasttrap */
	268	user_addr_t t_dtrace_scrpc; /* DTrace per-thread scratch location */
	269	user_addr_t t_dtrace_astpc; /* DTrace return sequence location */
	270
	271	struct dtrace_ptss_page_entry* t_dtrace_scratch; /* scratch space entry */
	272
	273	#if __sol64 \|\| defined(__APPLE__)
	274	uint64_t t_dtrace_regv; /* DTrace saved reg from fasttrap */
	275	#endif
316670eb	276	void * t_dtrace_syscall_args;
2d21ac55 A	277	#endif /* CONFIG_DTRACE */
2d21ac55 A	278	void * uu_threadlist;
b0d623f7	279	char * pth_name;
22ba694c A	280
	281	/* Document Tracking struct used to track a "tombstone" for a document */
	282	struct doc_tombstone *t_tombstone;
39037602 A	283
39037602 A	284	struct os_reason *uu_exit_reason;
1c79356b	285	};
0b4e3aa0	286
1c79356b	287	typedef struct uthread * uthread_t;
9bccf70c A	288
9bccf70c A	289	/* Definition of uu_flag */
91447636 A	290	#define UT_SAS_OLDMASK 0x00000001 /* need to restore mask before pause */
	291	#define UT_NO_SIGMASK 0x00000002 /* exited thread; invalid sigmask */
	292	#define UT_NOTCANCELPT 0x00000004 /* not a cancelation point */
	293	#define UT_CANCEL 0x00000008 /* thread marked for cancel */
	294	#define UT_CANCELED 0x00000010 /* thread cancelled */
	295	#define UT_CANCELDISABLE 0x00000020 /* thread cancel disabled */
2d21ac55 A	296	#define UT_ALTSTACK 0x00000040 /* this thread has alt stack for signals */
	297	#define UT_THROTTLE_IO 0x00000080 /* this thread issues throttle I/O */
	298	#define UT_PASSIVE_IO 0x00000100 /* this thread issues passive I/O */
	299	#define UT_PROCEXIT 0x00000200 /* this thread completed the proc exit */
	300	#define UT_RAGE_VNODES 0x00000400 /* rapid age any vnodes created by this thread */
316670eb	301	/* 0x00000800 unused, used to be UT_BACKGROUND */
39236c6e	302	/* 0x00001000 unused, used to be UT_BACKGROUND_TRAFFIC_MGT */
91447636 A	303
	304	#define UT_VFORK 0x02000000 /* thread has vfork children */
	305	#define UT_SETUID 0x04000000 /* thread is settugid() */
	306	#define UT_WASSETUID 0x08000000 /* thread was settugid() (in vfork) */
39236c6e	307	#define UT_VFORKING 0x10000000 /* thread in vfork() syscall */
9bccf70c	308
2d21ac55 A	309	#endif /* BSD_KERNEL_PRIVATE */
2d21ac55 A	310
9bccf70c A	311	#endif /* __APPLE_API_PRIVATE */
9bccf70c A	312
1c79356b A	313	#endif /* KERNEL */
	314
	315	/*
	316	* Per process structure containing data that isn't needed in core
	317	* when the process isn't running (esp. when swapped out).
	318	* This structure may or may not be at the same kernel address
	319	* in all processes.
	320	*/
	321
	322	struct user {
	323	/* NOT USED ANYMORE */
	324	};
	325
	326	#endif /* !_SYS_USER_H_ */