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
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.
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]
25 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
26 * Use is subject to license terms.
32 #pragma ident "@(#)taskq.h 1.5 05/06/08 SMI"
34 #include <sys/param.h>
36 #include <sys/kcondvar.h>
42 #define TASKQ_NAMELEN 31
44 typedef struct taskq taskq_t;
45 typedef uintptr_t taskqid_t;
46 typedef void (task_func_t)(void *);
49 * Public flags for taskq_create(): bit range 0-15
51 #define TASKQ_PREPOPULATE 0x0001 /* Prepopulate with threads and data */
52 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
53 #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
56 * Flags for taskq_dispatch. TQ_SLEEP/TQ_NOSLEEP should be same as
57 * KM_SLEEP/KM_NOSLEEP.
59 #define TQ_SLEEP 0x00 /* Can block for memory */
60 #define TQ_NOSLEEP 0x01 /* cannot block for memory; may fail */
61 #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
62 #define TQ_NOALLOC 0x04 /* cannot allocate memory; may fail */
66 extern taskq_t *system_taskq;
68 extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t);
69 extern taskq_t *taskq_create_instance(const char *, int, int, pri_t, int,
71 extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
72 extern void nulltask(void *);
73 extern void taskq_destroy(taskq_t *);
74 extern void taskq_wait(taskq_t *);
75 extern void taskq_suspend(taskq_t *);
76 extern int taskq_suspended(taskq_t *);
77 extern void taskq_resume(taskq_t *);
78 extern int taskq_member(taskq_t *, kthread_t *);
86 #endif /* _SYS_TASKQ_H */