X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/blobdiff_plain/1c15e88899094343f75aeba04122cd96a96b428e..refs/tags/BSD-4_3_Net_2:/usr/src/sys/sys/callout.h diff --git a/usr/src/sys/sys/callout.h b/usr/src/sys/sys/callout.h index 1f3831e598..522be36404 100644 --- a/usr/src/sys/sys/callout.h +++ b/usr/src/sys/sys/callout.h @@ -1,28 +1,46 @@ -/* - * Copyright (c) 1982, 1986 Regents of the University of California. - * All rights reserved. The Berkeley software License Agreement - * specifies the terms and conditions for redistribution. +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. * - * @(#)callout.h 7.1 (Berkeley) 6/4/86 - */ - -/* - * The callout structure is for - * a routine arranging - * to be called by the clock interrupt - * (clock.c) with a specified argument, - * in a specified amount of time. - * Used, for example, to time tab - * delays on typewriters. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)callout.h 7.2 (Berkeley) 2/15/91 */ -struct callout { - int c_time; /* incremental time */ - caddr_t c_arg; /* argument to routine */ - int (*c_func)(); /* routine */ - struct callout *c_next; +struct callout { + struct callout *c_next; /* next callout in queue */ + caddr_t c_arg; /* function argument */ + int (*c_func)(); /* function to call */ + int c_time; /* ticks to the event */ }; + #ifdef KERNEL -struct callout *callfree, *callout, calltodo; -int ncallout; +struct callout *callfree, *callout, calltodo; +int ncallout; #endif