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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_TASK_H 28 #define _SYS_TASK_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <sys/param.h> 37 #include <sys/types.h> 38 #include <sys/rctl.h> 39 40 #define TASK_NORMAL 0x0 /* task may create tasks via settaskid() */ 41 #define TASK_FINAL 0x1 /* task finalized, settaskid() will fail */ 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_t; 71 72 extern task_t *task0p; 73 extern rctl_hndl_t rc_task_lwps; 74 extern rctl_hndl_t rc_task_cpu_time; 75 76 extern void task_init(void); 77 extern task_t *task_create(projid_t, struct zone *); 78 extern void task_begin(task_t *, struct proc *); 79 extern void task_attach(task_t *, struct proc *); 80 extern void task_change(task_t *, struct proc *); 81 extern void task_detach(struct proc *); 82 extern task_t *task_join(task_t *, uint_t); 83 extern task_t *task_hold_by_id(taskid_t); 84 extern task_t *task_hold_by_id_zone(taskid_t, zoneid_t); 85 extern void task_rele(task_t *); 86 extern void task_hold(task_t *); 87 extern void task_end(task_t *); 88 89 #else /* _KERNEL */ 90 91 struct task; 92 93 extern taskid_t settaskid(projid_t, uint_t); 94 extern taskid_t gettaskid(void); 95 96 #endif /* _KERNEL */ 97 98 #ifdef __cplusplus 99 } 100 #endif 101 102 #endif /* _SYS_TASK_H */ 103