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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 /*
82 * Per-thread U area.
83 */
84 struct uthread {
85 int *uu_ar0; /* address of users saved R0 */
86
87 /* syscall parameters, results and catches */
88 int uu_arg[8]; /* arguments to current system call */
89 int *uu_ap; /* pointer to arglist */
90 int uu_rval[2];
91
92 /* thread exception handling */
93 int uu_code; /* ``code'' to trap */
94 char uu_cursig; /* p_cursig for exc. */
95 int XXX_dummy; /* NOT USED LEFT FOR COMPATIBILITY. */
96 /* support for syscalls which use continuations */
97 union {
98 struct _select {
99 u_int32_t *ibits, *obits; /* bits to select on */
100 uint nbytes; /* number of bytes in ibits and obits */
101 u_int64_t abstime;
102 int poll;
103 int error;
104 int count;
105 int nfcount;
106 char * wql;
107 int allocsize; /* select allocated size */
108 } ss_select; /* saved state for select() */
109 struct _wait {
110 int f;
111 } ss_wait; /* saved state for wait?() */
112 struct _owait {
113 int pid;
114 int *status;
115 int options;
116 struct rusage *rusage;
117 } ss_owait;
118 int uu_nfs_myiod; /* saved state for nfsd */
119 } uu_state;
120
121 /* internal support for continuation framework */
122 int (*uu_continuation)(int);
123 int uu_pri;
124 int uu_timo;
125 int uu_flag;
126 struct proc * uu_proc;
127 void * uu_userstate;
128 wait_queue_sub_t uu_wqsub;
129 sigset_t uu_siglist; /* signals pending for the thread */
130 sigset_t uu_sigwait; /* sigwait on this thread*/
131 sigset_t uu_sigmask; /* signal mask for the thread */
132 sigset_t uu_oldmask; /* signal mask saved before sigpause */
133 thread_act_t uu_act;
134 sigset_t uu_vforkmask; /* saved signal mask during vfork */
135
136 TAILQ_ENTRY(uthread) uu_list; /* List of uthreads in proc */
137 };
138
139 typedef struct uthread * uthread_t;
140
141 /* Definition of uu_flag */
142 #define USAS_OLDMASK 0x1 /* need to restore mask before pause */
143 #define UNO_SIGMASK 0x2 /* exited thread; invalid sigmask */
144 /* Kept same as in proc */
145 #define P_VFORK 0x2000000 /* process has vfork children */
146
147 #endif /* __APPLE_API_PRIVATE */
148
149 #endif /* KERNEL */
150
151 /*
152 * Per process structure containing data that isn't needed in core
153 * when the process isn't running (esp. when swapped out).
154 * This structure may or may not be at the same kernel address
155 * in all processes.
156 */
157
158 struct user {
159 /* NOT USED ANYMORE */
160 };
161
162 #endif /* !_SYS_USER_H_ */