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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
23: /*
24: * Copyright (c) 1982, 1986, 1989, 1991, 1993
25: * The Regents of the University of California. All rights reserved.
26: *
27: * Redistribution and use in source and binary forms, with or without
28: * modification, are permitted provided that the following conditions
29: * are met:
30: * 1. Redistributions of source code must retain the above copyright
31: * notice, this list of conditions and the following disclaimer.
32: * 2. Redistributions in binary form must reproduce the above copyright
33: * notice, this list of conditions and the following disclaimer in the
34: * documentation and/or other materials provided with the distribution.
35: * 3. All advertising materials mentioning features or use of this software
36: * must display the following acknowledgement:
37: * This product includes software developed by the University of
38: * California, Berkeley and its contributors.
39: * 4. Neither the name of the University nor the names of its contributors
40: * may be used to endorse or promote products derived from this software
41: * without specific prior written permission.
42: *
43: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
44: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
47: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53: * SUCH DAMAGE.
54: *
55: * @(#)user.h 8.2 (Berkeley) 9/23/93
56: */
57:
58: #ifndef _SYS_USER_H_
59: #define _SYS_USER_H_
60:
61: #ifndef KERNEL
62: /* stuff that *used* to be included by user.h, or is now needed */
63: #include <errno.h>
64: #include <sys/time.h>
65: #include <sys/resource.h>
66: #include <sys/ucred.h>
67: #include <sys/uio.h>
68: #endif
69: #include <sys/resourcevar.h>
70: #include <sys/signalvar.h>
71: #include <sys/vm.h> /* XXX */
72: #include <sys/sysctl.h>
73:
74: #ifdef KERNEL
75: /*
76: * Per-thread U area.
77: *
78: * It is likely that this structure contains no fields that must be
79: * saved between system calls.
80: *
81: * WARNING: IF THE SIZE OF THIS STRUCT CHANGES YOU MUST CHANGE THE
82: * CONSTANT IN struct thread_act.bsd_space
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 uu_sig; /* p_sig for exc. */
96:
97: /* support for syscalls which use continuations */
98: struct timeval uu_syst; /* snapshot for profiling */
99: union {
100: struct _select {
101: fd_set ibits[3], obits[3];
102: struct timeval atv;
103: int poll, error;
104: } ss_select; /* saved state for select() */
105: struct _wait {
106: int f;
107: } ss_wait; /* saved state for wait?() */
108: struct _owait {
109: int pid;
110: int *status;
111: int options;
112: struct rusage *rusage;
113: } ss_owait;
114: int uu_nfs_myiod; /* saved state for nfsd */
115: } uu_state;
116:
117: /* internal support for continuation framework */
118: int (*uu_continuation)(int);
119: int uu_pri;
120: int uu_timo;
121:
122: };
123: typedef struct uthread * uthread_t;
124: #endif /* KERNEL */
125:
126: /*
127: * Per process structure containing data that isn't needed in core
128: * when the process isn't running (esp. when swapped out).
129: * This structure may or may not be at the same kernel address
130: * in all processes.
131: */
132:
133: struct user {
134: /* NOT USED ANYMORE */
135: };
136:
137: #endif /* !_SYS_USER_H_ */
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