1/*
2 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
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.
14 *
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
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
29/*
30 * Copyright (c) 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 * @(#)resourcevar.h 8.4 (Berkeley) 1/9/95
62 */
63
64#ifndef _SYS_RESOURCEVAR_H_
65#define _SYS_RESOURCEVAR_H_
66
67#include <sys/appleapiopts.h>
68#include <sys/resource.h>
69#include <sys/_types/_caddr_t.h>
70#ifdef XNU_KERNEL_PRIVATE
71#include <kern/smr_types.h>
72#include <os/refcnt.h>
73#endif
74
75/*
76 * Kernel per-process accounting / statistics
77 * (not necessarily resident except when running).
78 */
79struct pstats {
80 struct rusage p_ru; /* stats for this proc */
81 struct rusage p_cru; /* (PL) sum of stats for reaped children */
82
83 struct uprof { /* profile arguments */
84 struct uprof *pr_next; /* multiple prof buffers allowed */
85 caddr_t pr_base; /* buffer base */
86 u_int32_t pr_size; /* buffer size */
87 u_int32_t pr_off; /* pc offset */
88 u_int32_t pr_scale; /* pc scaling */
89 u_int32_t pr_addr; /* temp storage for addr until AST */
90 u_int32_t pr_ticks; /* temp storage for ticks until AST */
91 } p_prof;
92
93 uint64_t ps_start; /* starting time ; compat only */
94#ifdef XNU_KERNEL_PRIVATE
95 struct rusage_info_child ri_child; /* (PL) sum of additional stats for reaped children (proc_pid_rusage) */
96 struct user_uprof { /* profile arguments */
97 struct user_uprof *pr_next; /* multiple prof buffers allowed */
98 user_addr_t pr_base; /* buffer base */
99 user_size_t pr_size; /* buffer size */
100 user_ulong_t pr_off; /* pc offset */
101 user_ulong_t pr_scale; /* pc scaling */
102 user_ulong_t pr_addr; /* temp storage for addr until AST */
103 user_ulong_t pr_ticks; /* temp storage for ticks until AST */
104 } user_p_prof;
105#endif // XNU_KERNEL_PRIVATE
106};
107
108#ifdef XNU_KERNEL_PRIVATE
109#pragma GCC visibility push(hidden)
110/*
111 * Kernel shareable process resource limits:
112 * Because this structure is moderately large but changed infrequently, it is normally
113 * shared copy-on-write after a fork. The pl_refcnt variable records the number of
114 * "processes" (NOT threads) currently sharing the plimit. A plimit is freed when the
115 * last referencing process exits the system. The refcnt of the plimit is a race-free
116 * _Atomic variable. We allocate new plimits in proc_limitupdate and free them
117 * in proc_limitdrop/proc_limitupdate.
118 */
119struct plimit {
120 struct smr_node pl_node;
121 struct rlimit pl_rlimit[RLIM_NLIMITS];
122 os_refcnt_t pl_refcnt;
123};
124struct proc;
125
126void calcru(struct proc *p, struct timeval *up, struct timeval *sp, struct timeval *ip);
127void ruadd(struct rusage *ru, struct rusage *ru2);
128void update_rusage_info_child(struct rusage_info_child *ru, rusage_info_current *ru_current);
129struct rlimit proc_limitget(struct proc *p, int which);
130void proc_limitfork(struct proc *parent, struct proc *child);
131void proc_limitdrop(struct proc *p);
132rlim_t proc_limitgetcur(struct proc *p, int which);
133void proc_limitsetcur_fsize(struct proc *p, rlim_t value);
134int proc_limitgetcur_nofile(struct proc *p);
135
136void gather_rusage_info(struct proc *p, rusage_info_current *ru, int flavor);
137int proc_get_rusage(struct proc *proc, int flavor, user_addr_t buffer, int is_zombie);
138int iopolicysys_vfs_materialize_dataless_files(struct proc *p, int cmd, int scope,
139 int policy, struct _iopol_param_t *iop_param);
140
141#pragma GCC visibility pop
142#endif /* XNU_KERNEL_PRIVATE */
143#endif /* !_SYS_RESOURCEVAR_H_ */
144