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Annotation of sys/sys/eventvar.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: eventvar.h,v 1.2 2000/11/16 20:31:30 mickey Exp $     */
        !             2:
        !             3: /*-
        !             4:  * Copyright (c) 1999,2000 Jonathan Lemon <jlemon@FreeBSD.org>
        !             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:  *     $FreeBSD: src/sys/sys/eventvar.h,v 1.3 2000/05/26 02:06:54 jake Exp $
        !            29:  */
        !            30:
        !            31: #ifndef _SYS_EVENTVAR_H_
        !            32: #define _SYS_EVENTVAR_H_
        !            33:
        !            34: #define KQ_NEVENTS     8               /* minimize copy{in,out} calls */
        !            35: #define KQEXTENT       256             /* linear growth by this amount */
        !            36:
        !            37: struct kqueue {
        !            38:        TAILQ_HEAD(kqlist, knote) kq_head;      /* list of pending event */
        !            39:        int             kq_count;               /* number of pending events */
        !            40:        struct          selinfo kq_sel;
        !            41:        struct          filedesc *kq_fdp;
        !            42:        int             kq_state;
        !            43: #define KQ_SEL         0x01
        !            44: #define KQ_SLEEP       0x02
        !            45:        struct          kevent kq_kev[KQ_NEVENTS];
        !            46: };
        !            47:
        !            48: #endif /* !_SYS_EVENTVAR_H_ */