FreeBSD/Linux Kernel Cross Reference
sys/sys/poll.h
1 /* $OpenBSD: poll.h,v 1.15 2016/06/07 06:12:37 deraadt Exp $ */
2
3 /*
4 * Copyright (c) 1996 Theo de Raadt
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 ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #ifndef _SYS_POLL_H_
29 #define _SYS_POLL_H_
30
31 typedef struct pollfd {
32 int fd;
33 short events;
34 short revents;
35 } pollfd_t;
36
37 typedef unsigned int nfds_t;
38
39 #define POLLIN 0x0001
40 #define POLLPRI 0x0002
41 #define POLLOUT 0x0004
42 #define POLLERR 0x0008
43 #define POLLHUP 0x0010
44 #define POLLNVAL 0x0020
45 #define POLLRDNORM 0x0040
46 #define POLLNORM POLLRDNORM
47 #define POLLWRNORM POLLOUT
48 #define POLLRDBAND 0x0080
49 #define POLLWRBAND 0x0100
50 #ifdef _KERNEL
51 #define POLL_NOHUP 0x1000 /* internal use only */
52 #endif
53
54 #define INFTIM (-1)
55
56 #ifndef _KERNEL
57 #include <sys/cdefs.h>
58
59 #if __BSD_VISIBLE
60 #include <sys/_types.h>
61
62 #ifndef _SIGSET_T_DEFINED_
63 #define _SIGSET_T_DEFINED_
64 typedef unsigned int sigset_t;
65 #endif
66
67 #ifndef _TIME_T_DEFINED_
68 #define _TIME_T_DEFINED_
69 typedef __time_t time_t;
70 #endif
71
72 #ifndef _TIMESPEC_DECLARED
73 #define _TIMESPEC_DECLARED
74 struct timespec {
75 time_t tv_sec; /* seconds */
76 long tv_nsec; /* and nanoseconds */
77 };
78 #endif
79 #endif /* __BSD_VISIBLE */
80
81 __BEGIN_DECLS
82 int poll(struct pollfd[], nfds_t, int);
83 #if __BSD_VISIBLE
84 int ppoll(struct pollfd[], nfds_t, const struct timespec *, const sigset_t *);
85 #endif /* __BSD_VISIBLE */
86 __END_DECLS
87 #endif /* _KERNEL */
88
89 #endif /* !_SYS_POLL_H_ */
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