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.
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.
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]
22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
31 #include <sys/types.h>
33 #include <sys/taskqueue.h>
34 #include <sys/thread.h>
41 #define TASKQ_NAMELEN 31
43 typedef struct taskq {
44 struct taskqueue *tq_queue;
47 typedef uintptr_t taskqid_t;
48 typedef void (task_func_t)(void *);
50 typedef struct taskq_ent {
51 struct task tqent_task;
52 struct timeout_task tqent_timeout_task;
53 task_func_t *tqent_func;
56 CK_LIST_ENTRY(taskq_ent) tqent_hash;
58 uint8_t tqent_registered;
59 uint8_t tqent_cancelled;
60 volatile uint32_t tqent_rc;
64 * Public flags for taskq_create(): bit range 0-15
66 #define TASKQ_PREPOPULATE 0x0001 /* Prepopulate with threads and data */
67 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */
68 #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */
69 #define TASKQ_THREADS_CPU_PCT 0x0008 /* number of threads as % of ncpu */
70 #define TASKQ_DC_BATCH 0x0010 /* Taskq uses SDC in batch mode */
73 * Flags for taskq_dispatch. TQ_SLEEP/TQ_NOSLEEP should be same as
74 * KM_SLEEP/KM_NOSLEEP.
76 #define TQ_SLEEP 0x00 /* Can block for memory */
77 #define TQ_NOSLEEP 0x01 /* cannot block for memory; may fail */
78 #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */
79 #define TQ_NOALLOC 0x04 /* cannot allocate memory; may fail */
80 #define TQ_FRONT 0x08 /* Put task at the front of the queue */
82 #define TASKQID_INVALID ((taskqid_t)0)
84 #define taskq_init_ent(x)
85 extern taskq_t *system_taskq;
86 /* Global dynamic task queue for long delay */
87 extern taskq_t *system_delay_taskq;
89 extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t);
90 extern taskqid_t taskq_dispatch_delay(taskq_t *, task_func_t, void *,
92 extern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t,
94 extern int taskq_empty_ent(taskq_ent_t *);
95 taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t);
96 taskq_t *taskq_create_instance(const char *, int, int, pri_t, int, int, uint_t);
97 taskq_t *taskq_create_proc(const char *, int, pri_t, int, int,
98 struct proc *, uint_t);
99 taskq_t *taskq_create_sysdc(const char *, int, int, int,
100 struct proc *, uint_t, uint_t);
101 void nulltask(void *);
102 extern void taskq_destroy(taskq_t *);
103 extern void taskq_wait_id(taskq_t *, taskqid_t);
104 extern void taskq_wait_outstanding(taskq_t *, taskqid_t);
105 extern void taskq_wait(taskq_t *);
106 extern int taskq_cancel_id(taskq_t *, taskqid_t);
107 extern int taskq_member(taskq_t *, kthread_t *);
108 extern taskq_t *taskq_of_curthread(void);
109 void taskq_suspend(taskq_t *);
110 int taskq_suspended(taskq_t *);
111 void taskq_resume(taskq_t *);
120 typedef int taskq_ent_t;
121 #define taskq_init_ent(x)
122 #endif /* _STANDALONE */
124 #endif /* _SYS_TASKQ_H */