1/*
2 * Copyright (c) 2013, University of Washington.
3 * All rights reserved.
4 *
5 * This file is distributed under the terms in the attached LICENSE file.
6 * If you do not find this file, copies can be found by writing to:
7 * ETH Zurich D-INFK, Universitaetstrasse 6, CH-8092 Zurich. Attn: Systems Group.
8 */
9
10/*
11 * Copyright (C) 2008 The Android Open Source Project
12 * All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 *  * Redistributions of source code must retain the above copyright
18 *    notice, this list of conditions and the following disclaimer.
19 *  * Redistributions in binary form must reproduce the above copyright
20 *    notice, this list of conditions and the following disclaimer in
21 *    the documentation and/or other materials provided with the
22 *    distribution.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
27 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
28 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
30 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
31 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
32 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
34 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37#ifndef _SYS_EPOLL_H_
38#define _SYS_EPOLL_H_
39
40#include <stdint.h>
41#include <signal.h>
42
43#define EPOLL_CLOEXEC    02000000
44#define EPOLL_NONBLOCK   04000
45
46#define EPOLLIN          0x00000001
47#define EPOLLPRI         0x00000002
48#define EPOLLOUT         0x00000004
49#define EPOLLERR         0x00000008
50#define EPOLLHUP         0x00000010
51#define EPOLLRDNORM      0x00000040
52#define EPOLLRDBAND      0x00000080
53#define EPOLLWRNORM      0x00000100
54#define EPOLLWRBAND      0x00000200
55#define EPOLLMSG         0x00000400
56#define EPOLLRDHUP       0x00002000
57#define EPOLLWAKEUP      0x20000000
58#define EPOLLONESHOT     0x40000000
59#define EPOLLET          0x80000000
60
61#define EPOLL_CTL_ADD    1
62#define EPOLL_CTL_DEL    2
63#define EPOLL_CTL_MOD    3
64
65typedef union epoll_data
66{
67  void *ptr;
68  int fd;
69  uint32_t u32;
70  uint64_t u64;
71} epoll_data_t;
72
73struct epoll_event
74{
75  uint32_t events;	/* Epoll events */
76  epoll_data_t data;	/* User data variable */
77} __attribute__ ((__packed__));
78
79int epoll_create(int size);
80int epoll_create1(int flags);
81int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event);
82int epoll_wait(int epfd, struct epoll_event *events,
83               int max, int timeout);
84int epoll_pwait(int epfd, struct epoll_event *events,
85                int max, int timeout, const sigset_t *sigmask);
86
87#endif
88