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Diffstat (limited to 'usr/src/uts/common/sys/task.h')
| -rw-r--r-- | usr/src/uts/common/sys/task.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/usr/src/uts/common/sys/task.h b/usr/src/uts/common/sys/task.h new file mode 100644 index 0000000000..f009b5e5a7 --- /dev/null +++ b/usr/src/uts/common/sys/task.h @@ -0,0 +1,102 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_TASK_H +#define _SYS_TASK_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#ifdef __cplusplus +extern "C" { +#endif + +#include <sys/param.h> +#include <sys/types.h> +#include <sys/rctl.h> + +#define TASK_NORMAL 0x0 /* task may create tasks via settaskid() */ +#define TASK_FINAL 0x1 /* task finalized, settaskid() will fail */ + +#ifdef _KERNEL + +#include <sys/id_space.h> +#include <sys/exacct_impl.h> +#include <sys/kmem.h> + +struct proc; +struct zone; + +typedef struct task { + taskid_t tk_tkid; /* task id */ + uint_t tk_flags; /* task properties */ + struct kproject *tk_proj; /* project membership */ + uint_t tk_hold_count; /* number of members/observers */ + struct proc *tk_memb_list; /* pointer to the first process */ + /* in a doubly linked list of */ + /* task members */ + kmutex_t tk_usage_lock; /* lock to protect tk_*usage */ + task_usage_t *tk_usage; /* total task resource usage */ + task_usage_t *tk_prevusage; /* previous interval usage */ + task_usage_t *tk_zoneusage; /* previous interval usage in zone */ + rctl_set_t *tk_rctls; /* task's resource controls */ + rctl_qty_t tk_nlwps; /* protected by */ + /* tk_zone->zone_nlwps_lock */ + rctl_qty_t tk_nlwps_ctl; /* protected by tk_rctls->rcs_lock */ + rctl_qty_t tk_cpu_time; /* accumulated CPU seconds */ + struct zone *tk_zone; /* zone task belongs to */ +} task_t; + +extern task_t *task0p; +extern rctl_hndl_t rc_task_lwps; +extern rctl_hndl_t rc_task_cpu_time; + +extern void task_init(void); +extern task_t *task_create(projid_t, struct zone *); +extern void task_begin(task_t *, struct proc *); +extern void task_attach(task_t *, struct proc *); +extern void task_change(task_t *, struct proc *); +extern void task_detach(struct proc *); +extern task_t *task_join(task_t *, uint_t); +extern task_t *task_hold_by_id(taskid_t); +extern task_t *task_hold_by_id_zone(taskid_t, zoneid_t); +extern void task_rele(task_t *); +extern void task_hold(task_t *); +extern void task_end(task_t *); + +#else /* _KERNEL */ + +struct task; + +extern taskid_t settaskid(projid_t, uint_t); +extern taskid_t gettaskid(void); + +#endif /* _KERNEL */ + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_TASK_H */ |