1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 #ifndef _SYS_TASK_H 26 #define _SYS_TASK_H 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 #include <sys/param.h> 33 #include <sys/types.h> 34 #include <sys/rctl.h> 35 36 #define TASK_NORMAL 0x0 /* task may create tasks via settaskid() */ 37 #define TASK_FINAL 0x1 /* task finalized, settaskid() will fail */ 38 #define TASK_MASK 0x1 /* task flags mask */ 39 40 #define TASK_PROJ_PURGE 0x100000 /* purge project.* rctl entities */ 41 #define TASK_PROJ_MASK 0x100000 42 43 #ifdef _KERNEL 44 45 #include <sys/id_space.h> 46 #include <sys/exacct_impl.h> 47 #include <sys/kmem.h> 48 49 struct proc; 50 struct zone; 51 52 typedef struct task { 53 taskid_t tk_tkid; /* task id */ 54 uint_t tk_flags; /* task properties */ 55 struct kproject *tk_proj; /* project membership */ 56 uint_t tk_hold_count; /* number of members/observers */ 57 struct proc *tk_memb_list; /* pointer to the first process */ 58 /* in a doubly linked list of */ 59 /* task members */ 60 kmutex_t tk_usage_lock; /* lock to protect tk_*usage */ 61 task_usage_t *tk_usage; /* total task resource usage */ 62 task_usage_t *tk_prevusage; /* previous interval usage */ 63 task_usage_t *tk_zoneusage; /* previous interval usage in zone */ 64 rctl_set_t *tk_rctls; /* task's resource controls */ 65 rctl_qty_t tk_nlwps; /* protected by */ 66 /* tk_zone->zone_nlwps_lock */ 67 rctl_qty_t tk_nlwps_ctl; /* protected by tk_rctls->rcs_lock */ 68 rctl_qty_t tk_cpu_time; /* accumulated CPU seconds */ 69 struct zone *tk_zone; /* zone task belongs to */ 70 task_usage_t *tk_inherited; /* task resource usage */ 71 /* inherited with the first */ 72 /* member process */ 73 rctl_qty_t tk_cpu_ticks; /* accumulated CPU ticks */ 74 kmutex_t tk_cpu_time_lock; /* accumulated CPU seconds lock */ 75 rctl_qty_t tk_nprocs; /* protected by */ 76 /* tk_zone->zone_nlwps_lock */ 77 rctl_qty_t tk_nprocs_ctl; /* protected by tk_rctls->rcs_lock */ 78 kstat_t *tk_nprocs_kstat; /* max-processes rctl kstat */ 79 struct task *tk_commit_next; /* next task on task commit list */ 80 } task_t; 81 82 typedef struct task_kstat { 83 kstat_named_t ktk_zonename; 84 kstat_named_t ktk_usage; 85 kstat_named_t ktk_value; 86 } task_kstat_t; 87 88 extern task_t *task0p; 89 extern rctl_hndl_t rc_task_lwps; 90 extern rctl_hndl_t rc_task_nprocs; 91 extern rctl_hndl_t rc_task_cpu_time; 92 93 extern void task_init(void); 94 extern task_t *task_create(projid_t, struct zone *); 95 extern void task_begin(task_t *, struct proc *); 96 extern void task_attach(task_t *, struct proc *); 97 extern void task_change(task_t *, struct proc *); 98 extern void task_detach(struct proc *); 99 extern task_t *task_join(task_t *, uint_t); 100 extern task_t *task_hold_by_id(taskid_t); 101 extern task_t *task_hold_by_id_zone(taskid_t, zoneid_t); 102 extern void task_rele(task_t *); 103 extern void task_hold(task_t *); 104 extern void task_end(task_t *); 105 extern rctl_qty_t task_cpu_time_incr(task_t *, rctl_qty_t); 106 extern void task_commit_thread_init(void); 107 108 #else /* _KERNEL */ 109 110 struct task; 111 112 extern taskid_t settaskid(projid_t, uint_t); 113 extern taskid_t gettaskid(void); 114 115 #endif /* _KERNEL */ 116 117 #ifdef __cplusplus 118 } 119 #endif 120 121 #endif /* _SYS_TASK_H */ 122