1 /*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)callout.h 8.2 (Berkeley) 1/21/94 35 * $FreeBSD$ 36 */ 37 38 #ifndef _SYS__CALLOUT_H 39 #define _SYS__CALLOUT_H 40 41 #include <sys/queue.h> 42 43 struct lock_object; 44 45 LIST_HEAD(callout_list, callout); 46 SLIST_HEAD(callout_slist, callout); 47 TAILQ_HEAD(callout_tailq, callout); 48 49 struct callout { 50 union { 51 LIST_ENTRY(callout) le; 52 SLIST_ENTRY(callout) sle; 53 TAILQ_ENTRY(callout) tqe; 54 } c_links; 55 sbintime_t c_time; /* ticks to the event */ 56 sbintime_t c_precision; /* delta allowed wrt opt */ 57 void *c_arg; /* function argument */ 58 void (*c_func)(void *); /* function to call */ 59 struct lock_object *c_lock; /* lock to handle */ 60 short c_flags; /* User State */ 61 short c_iflags; /* Internal State */ 62 volatile int c_cpu; /* CPU we're scheduled on */ 63 }; 64 65 #endif 66