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 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_TASK_H 27 #define _SYS_TASK_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #include <sys/param.h> 36 #include <sys/types.h> 37 #include <sys/rctl.h> 38 39 #define TASK_NORMAL 0x0 /* task may create tasks via settaskid() */ 40 #define TASK_FINAL 0x1 /* task finalized, settaskid() will fail */ 41 #define TASK_MASK 0x1 /* task flags mask */ 42 43 #define TASK_PROJ_PURGE 0x100000 /* purge project.* rctl entities */ 44 #define TASK_PROJ_MASK 0x100000 45 46 #ifdef _KERNEL 47 48 #include <sys/id_space.h> 49 #include <sys/exacct_impl.h> 50 #include <sys/kmem.h> 51 52 struct proc; 53 struct zone; 54 55 typedef struct task { 56 taskid_t tk_tkid; /* task id */ 57 uint_t tk_flags; /* task properties */ 58 struct kproject *tk_proj; /* project membership */ 59 uint_t tk_hold_count; /* number of members/observers */ 60 struct proc *tk_memb_list; /* pointer to the first process */ 61 /* in a doubly linked list of */ 62 /* task members */ 63 kmutex_t tk_usage_lock; /* lock to protect tk_*usage */ 64 task_usage_t *tk_usage; /* total task resource usage */ 65 task_usage_t *tk_prevusage; /* previous interval usage */ 66 task_usage_t *tk_zoneusage; /* previous interval usage in zone */ 67 rctl_set_t *tk_rctls; /* task's resource controls */ 68 rctl_qty_t tk_nlwps; /* protected by */ 69 /* tk_zone->zone_nlwps_lock */ 70 rctl_qty_t tk_nlwps_ctl; /* protected by tk_rctls->rcs_lock */ 71 rctl_qty_t tk_cpu_time; /* accumulated CPU seconds */ 72 struct zone *tk_zone; /* zone task belongs to */ 73 task_usage_t *tk_inherited; /* task resource usage */ 74 /* inherited with the first */ 75 /* member process */ 76 } task_t; 77 78 extern task_t *task0p; 79 extern rctl_hndl_t rc_task_lwps; 80 extern rctl_hndl_t rc_task_cpu_time; 81 82 extern void task_init(void); 83 extern task_t *task_create(projid_t, struct zone *); 84 extern void task_begin(task_t *, struct proc *); 85 extern void task_attach(task_t *, struct proc *); 86 extern void task_change(task_t *, struct proc *); 87 extern void task_detach(struct proc *); 88 extern task_t *task_join(task_t *, uint_t); 89 extern task_t *task_hold_by_id(taskid_t); 90 extern task_t *task_hold_by_id_zone(taskid_t, zoneid_t); 91 extern void task_rele(task_t *); 92 extern void task_hold(task_t *); 93 extern void task_end(task_t *); 94 95 #else /* _KERNEL */ 96 97 struct task; 98 99 extern taskid_t settaskid(projid_t, uint_t); 100 extern taskid_t gettaskid(void); 101 102 #endif /* _KERNEL */ 103 104 #ifdef __cplusplus 105 } 106 #endif 107 108 #endif /* _SYS_TASK_H */ 109