bsd/sys/user.h

   1 /*
   2  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   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  */
  25 /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
  26 /*
  27  * Copyright (c) 1982, 1986, 1989, 1991, 1993
  28  *      The Regents of the University of California.  All rights reserved.
  29  *
  30  * Redistribution and use in source and binary forms, with or without
  31  * modification, are permitted provided that the following conditions
  32  * are met:
  33  * 1. Redistributions of source code must retain the above copyright
  34  *    notice, this list of conditions and the following disclaimer.
  35  * 2. Redistributions in binary form must reproduce the above copyright
  36  *    notice, this list of conditions and the following disclaimer in the
  37  *    documentation and/or other materials provided with the distribution.
  38  * 3. All advertising materials mentioning features or use of this software
  39  *    must display the following acknowledgement:
  40  *      This product includes software developed by the University of
  41  *      California, Berkeley and its contributors.
  42  * 4. Neither the name of the University nor the names of its contributors
  43  *    may be used to endorse or promote products derived from this software
  44  *    without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  56  * SUCH DAMAGE.
  57  *
  58  *      @(#)user.h      8.2 (Berkeley) 9/23/93
  59  */
  60
  61 #ifndef _SYS_USER_H_
  62 #define _SYS_USER_H_
  63
  64 #include <sys/appleapiopts.h>
  65 #ifndef KERNEL
  66 /* stuff that *used* to be included by user.h, or is now needed */
  67 #include <errno.h>
  68 #include <sys/time.h>
  69 #include <sys/resource.h>
  70 #include <sys/ucred.h>
  71 #include <sys/uio.h>
  72 #endif
  73 #include <sys/resourcevar.h>
  74 #include <sys/signalvar.h>
  75 #include <sys/vm.h>             /* XXX */
  76 #include <sys/sysctl.h>
  77
  78 #ifdef KERNEL
  79
  80 #ifdef __APPLE_API_PRIVATE
  81 struct nlminfo;
  82 /*
  83  *      Per-thread U area.
  84  */
  85 struct uthread {
  86         int     *uu_ar0;                /* address of users saved R0 */
  87
  88         /* syscall parameters, results and catches */
  89         int     uu_arg[8];              /* arguments to current system call */
  90         int     *uu_ap;                 /* pointer to arglist */
  91     int uu_rval[2];
  92
  93         /* thread exception handling */
  94         int     uu_code;                        /* ``code'' to trap */
  95         char uu_cursig;                         /* p_cursig for exc. */
  96         struct nlminfo *uu_nlminfo;     /* for rpc.lockd */
  97         /* support for syscalls which use continuations */
  98         union {
  99                 struct _select {
 100                         u_int32_t       *ibits, *obits; /* bits to select on */
 101                         uint    nbytes; /* number of bytes in ibits and obits */
 102                         u_int64_t abstime;
 103                         int poll;
 104                         int error;
 105                         int count;
 106                         int nfcount;
 107                         char * wql;
 108                         int allocsize;          /* select allocated size */
 109                 } ss_select;                    /* saved state for select() */
 110                 struct _wait {
 111                         int     f;
 112                 } ss_wait;                      /* saved state for wait?() */
 113           struct _owait {
 114                 int pid;
 115                 int *status;
 116                 int options;
 117                 struct rusage *rusage;
 118           } ss_owait;
 119           int uu_nfs_myiod;    /* saved state for nfsd */
 120         } uu_state;
 121
 122   /* internal support for continuation framework */
 123     int (*uu_continuation)(int);
 124     int uu_pri;
 125     int uu_timo;
 126         int uu_flag;
 127         struct proc * uu_proc;
 128         void * uu_userstate;
 129         wait_queue_sub_t uu_wqsub;
 130         sigset_t uu_siglist;                            /* signals pending for the thread */
 131         sigset_t  uu_sigwait;                           /*  sigwait on this thread*/
 132         sigset_t  uu_sigmask;                           /* signal mask for the thread */
 133         sigset_t  uu_oldmask;                           /* signal mask saved before sigpause */
 134         thread_act_t uu_act;
 135         sigset_t  uu_vforkmask;                         /* saved signal mask during vfork */
 136
 137         TAILQ_ENTRY(uthread) uu_list;           /* List of uthreads in proc */
 138
 139         struct kaudit_record            *uu_ar;         /* audit record */
 140         struct task*    uu_aio_task;                    /* target task for async io */
 141 };
 142
 143 typedef struct uthread * uthread_t;
 144
 145 /* Definition of uu_flag */
 146 #define USAS_OLDMASK    0x1             /* need to restore mask before pause */
 147 #define UNO_SIGMASK             0x2             /* exited thread; invalid sigmask */
 148 /* Kept same as in proc */
 149 #define P_VFORK     0x2000000   /* process has vfork children */
 150
 151 #endif /* __APPLE_API_PRIVATE */
 152
 153 #endif  /* KERNEL */
 154
 155 /*
 156  * Per process structure containing data that isn't needed in core
 157  * when the process isn't running (esp. when swapped out).
 158  * This structure may or may not be at the same kernel address
 159  * in all processes.
 160  */
 161
 162 struct  user {
 163   /* NOT USED ANYMORE */
 164 };
 165
 166 #endif  /* !_SYS_USER_H_ */