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 <os/refcnt.h> 72 #endif 73 74 /* 75 * Kernel per-process accounting / statistics 76 * (not necessarily resident except when running). 77 */ 78 struct pstats { 79 struct rusage p_ru; /* stats for this proc */ 80 struct rusage p_cru; /* (PL) sum of stats for reaped children */ 81 82 struct uprof { /* profile arguments */ 83 struct uprof *pr_next; /* multiple prof buffers allowed */ 84 caddr_t pr_base; /* buffer base */ 85 u_int32_t pr_size; /* buffer size */ 86 u_int32_t pr_off; /* pc offset */ 87 u_int32_t pr_scale; /* pc scaling */ 88 u_int32_t pr_addr; /* temp storage for addr until AST */ 89 u_int32_t pr_ticks; /* temp storage for ticks until AST */ 90 } p_prof; 91 92 uint64_t ps_start; /* starting time ; compat only */ 93 #ifdef XNU_KERNEL_PRIVATE 94 struct rusage_info_child ri_child; /* (PL) sum of additional stats for reaped children (proc_pid_rusage) */ 95 struct user_uprof { /* profile arguments */ 96 struct user_uprof *pr_next; /* multiple prof buffers allowed */ 97 user_addr_t pr_base; /* buffer base */ 98 user_size_t pr_size; /* buffer size */ 99 user_ulong_t pr_off; /* pc offset */ 100 user_ulong_t pr_scale; /* pc scaling */ 101 user_ulong_t pr_addr; /* temp storage for addr until AST */ 102 user_ulong_t pr_ticks; /* temp storage for ticks until AST */ 103 } user_p_prof; 104 #endif // XNU_KERNEL_PRIVATE 105 }; 106 107 #ifdef XNU_KERNEL_PRIVATE 108 #pragma GCC visibility push(hidden) 109 /* 110 * Kernel shareable process resource limits: 111 * Because this structure is moderately large but changed infrequently, it is normally 112 * shared copy-on-write after a fork. The pl_refcnt variable records the number of 113 * "processes" (NOT threads) currently sharing the plimit. A plimit is freed when the 114 * last referencing process exits the system. The refcnt of the plimit is a race-free 115 * _Atomic variable. We allocate new plimits in proc_limitupdate and free them 116 * in proc_limitdrop/proc_limitupdate. 117 */ 118 struct plimit { 119 struct rlimit pl_rlimit[RLIM_NLIMITS]; 120 os_refcnt_t pl_refcnt; 121 }; 122 struct proc; 123 124 void calcru(struct proc *p, struct timeval *up, struct timeval *sp, struct timeval *ip); 125 void ruadd(struct rusage *ru, struct rusage *ru2); 126 void update_rusage_info_child(struct rusage_info_child *ru, rusage_info_current *ru_current); 127 struct rlimit proc_limitget(struct proc *p, int which); 128 void proc_limitfork(struct proc *parent, struct proc *child); 129 void proc_limitdrop(struct proc *p); 130 rlim_t proc_limitgetcur(struct proc *p, int which); 131 void proc_limitsetcur_fsize(struct proc *p, rlim_t value); 132 int proc_limitgetcur_nofile(struct proc *p); 133 134 void gather_rusage_info(struct proc *p, rusage_info_current *ru, int flavor); 135 int proc_get_rusage(struct proc *proc, int flavor, user_addr_t buffer, int is_zombie); 136 137 #pragma GCC visibility pop 138 #endif /* XNU_KERNEL_PRIVATE */ 139 #endif /* !_SYS_RESOURCEVAR_H_ */ 140