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1/* Copyright (C) 1997-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18#ifndef _SYS_POLL_H
19# error "Never use <bits/poll.h> directly; include <sys/poll.h> instead."
20#endif
21
22/* Event types that can be polled for. These bits may be set in `events'
23 to indicate the interesting event types; they will appear in `revents'
24 to indicate the status of the file descriptor. */
25#define POLLIN 01 /* There is data to read. */
26#define POLLPRI 02 /* There is urgent data to read. */
27#define POLLOUT 04 /* Writing now will not block. */
28
29#if defined __USE_XOPEN || defined __USE_XOPEN2K8
30/* These values are defined in XPG4.2 and later. */
31# define POLLRDNORM POLLIN /* Normal data may be read. */
32# define POLLRDBAND POLLPRI /* Priority data may be read. */
33# define POLLWRNORM POLLOUT /* Writing now will not block. */
34# define POLLWRBAND POLLOUT /* Priority data may be written. */
35#endif
36
37/* Event types always implicitly polled for. These bits need not be set in
38 `events', but they will appear in `revents' to indicate the status of
39 the file descriptor. */
40#define POLLERR 010 /* Error condition. */
41#define POLLHUP 020 /* Hung up. */
42#define POLLNVAL 040 /* Invalid polling request. */
43

Warning: That file was not part of the compilation database. It may have many parsing errors.