Annotation of sys/sys/eventvar.h, Revision 1.1.1.1
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_ */
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