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_TASKQ_H 28 #define _SYS_TASKQ_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 #include <sys/thread.h> 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 #define TASKQ_NAMELEN 31 40 41 typedef struct taskq taskq_t; 42 typedef uintptr_t taskqid_t; 43 typedef void (task_func_t)(void *); 44 45 /* 46 * Public flags for taskq_create(): bit range 0-15 47 */ 48 #define TASKQ_PREPOPULATE 0x0001 /* Prepopulate with threads and data */ 49 #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ 50 #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ 51 52 /* 53 * Flags for taskq_dispatch. TQ_SLEEP/TQ_NOSLEEP should be same as 54 * KM_SLEEP/KM_NOSLEEP. 55 */ 56 #define TQ_SLEEP 0x00 /* Can block for memory */ 57 #define TQ_NOSLEEP 0x01 /* cannot block for memory; may fail */ 58 #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ 59 #define TQ_NOALLOC 0x04 /* cannot allocate memory; may fail */ 60 61 #ifdef _KERNEL 62 63 extern taskq_t *system_taskq; 64 65 extern void taskq_init(void); 66 67 extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); 68 extern taskq_t *taskq_create_instance(const char *, int, int, pri_t, int, 69 int, uint_t); 70 extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); 71 extern void nulltask(void *); 72 extern void taskq_destroy(taskq_t *); 73 extern void taskq_wait(taskq_t *); 74 extern void taskq_suspend(taskq_t *); 75 extern int taskq_suspended(taskq_t *); 76 extern void taskq_resume(taskq_t *); 77 extern int taskq_member(taskq_t *, kthread_t *); 78 79 #endif /* _KERNEL */ 80 81 #ifdef __cplusplus 82 } 83 #endif 84 85 #endif /* _SYS_TASKQ_H */ 86