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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 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. 12 * 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] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 24 * Copyright (c) 2012, 2017 by Delphix. All rights reserved. 25 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 26 */ 27 28 #ifndef _ZFS_TASKQ_H 29 #define _ZFS_TASKQ_H 30 31 #include <stdint.h> 32 #include <umem.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 typedef struct zfs_taskq zfs_taskq_t; 39 typedef uintptr_t zfs_taskqid_t; 40 typedef void (ztask_func_t)(void *); 41 42 #define ZFS_TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */ 43 44 #define ZFS_TASKQ_PREPOPULATE 0x0001 45 46 #define ZFS_TQ_SLEEP UMEM_NOFAIL /* Can block for memory */ 47 #define ZFS_TQ_NOSLEEP UMEM_DEFAULT /* cannot block for memory; may fail */ 48 #define ZFS_TQ_FRONT 0x08 /* Queue in front */ 49 50 extern zfs_taskq_t *zfs_taskq_create(const char *, int, pri_t, int, 51 int, uint_t); 52 extern void zfs_taskq_destroy(zfs_taskq_t *); 53 54 extern zfs_taskqid_t zfs_taskq_dispatch(zfs_taskq_t *, ztask_func_t, 55 void *, uint_t); 56 57 extern void zfs_taskq_wait(zfs_taskq_t *); 58 59 #ifdef __cplusplus 60 } 61 #endif 62 63 #endif /* _ZFS_TASKQ_H */ 64