1 /* $OpenBSD: selinfo.h,v 1.3 2007/07/25 23:11:53 art Exp $ */
2
3 /*-
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. 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 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)select.h 8.2 (Berkeley) 1/4/94
32 */
33
34 #ifndef _SYS_SELINFO_H_
35 #define _SYS_SELINFO_H_
36
37 #include <sys/event.h> /* for struct klist */
38
39 /*
40 * Used to maintain information about processes that wish to be
41 * notified when I/O becomes possible.
42 */
43 struct selinfo {
44 pid_t si_selpid; /* process to be notified */
45 struct klist si_note; /* kernel note list */
46 short si_flags; /* see below */
47 };
48 #define SI_COLL 0x0001 /* collision occurred */
49
50 #ifdef _KERNEL
51 struct proc;
52
53 void selrecord(struct proc *selector, struct selinfo *);
54 void selwakeup(struct selinfo *);
55 #endif
56
57 #endif /* !_SYS_SELINFO_H_ */