1 /* $NetBSD: workqueue.h,v 1.9 2007/10/19 12:16:48 ad Exp $ */ 2 3 /*- 4 * Copyright (c)2002, 2005 YAMAMOTO Takashi, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _SYS_WORKQUEUE_H_ 30 #define _SYS_WORKQUEUE_H_ 31 32 struct cpu_info; 33 34 /* 35 * a simple "do it in thread context" framework. 36 * 37 * this framework is designed to make struct work small as 38 * far as possible, so that it can be embedded into other structures 39 * without too much cost. 40 */ 41 42 struct work { 43 void *wk_dummy; 44 }; 45 46 struct workqueue; 47 48 #define WQ_MPSAFE 0x01 49 #define WQ_PERCPU 0x02 50 51 int workqueue_create(struct workqueue **, const char *, 52 void (*)(struct work *, void *), void *, pri_t, int, int); 53 void workqueue_destroy(struct workqueue *); 54 55 void workqueue_enqueue(struct workqueue *, struct work *, struct cpu_info *); 56 57 #endif /* _SYS_WORKQUEUE_H_ */ 58