source: rtems/cpukit/libnetworking/sys/select.h @ 14876018

4.11
Last change on this file since 14876018 was 14876018, checked in by Daniel Ramirez <javamonn@…>, on Nov 21, 2013 at 12:24:48 AM

select.h, rtems_select.c, nds select: Add restrict keyword

  • Property mode set to 100644
File size: 2.8 KB
Line 
1/*-
2 * Copyright (c) 1992, 1993
3 *      The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *      This product includes software developed by the University of
16 *      California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *      @(#)select.h    8.2 (Berkeley) 1/4/94
34 */
35
36#ifndef _SYS_SELECT_H_
37#define _SYS_SELECT_H_
38
39#include <sys/time.h> /* struct timeval */
40
41#ifdef __cplusplus
42extern "C" {
43#endif
44
45/*
46 * Used to maintain information about processes that wish to be
47 * notified when I/O becomes possible.
48 */
49struct selinfo {
50        pid_t   si_pid;         /* process to be notified */
51        short   si_flags;       /* see below */
52};
53#define SI_COLL 0x0001          /* collision occurred */
54
55/* Check the first NFDS descriptors each in READFDS (if not NULL) for read
56   readiness, in WRITEFDS (if not NULL) for write readiness, and in EXCEPTFDS
57   (if not NULL) for exceptional conditions.  If TIMEOUT is not NULL, time out
58   after waiting the interval specified therein.  Returns the number of ready
59   descriptors, or -1 for errors.  */
60extern int select (int __nfds, fd_set *__restrict __readfds,
61                   fd_set *__restrict __writefds,
62                   fd_set *__restrict __exceptfds,
63                   struct timeval *__restrict __timeout);
64
65#ifdef __cplusplus
66}
67#endif
68
69#endif /* !_SYS_SELECT_H_ */
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