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1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  * 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  *  * Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *  * Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 #ifndef _SYS_EPOLL_H_
29 #define _SYS_EPOLL_H_
30 
31 #include <sys/cdefs.h>
32 
33 __BEGIN_DECLS
34 
35 #define EPOLLIN          0x00000001
36 #define EPOLLPRI         0x00000002
37 #define EPOLLOUT         0x00000004
38 #define EPOLLERR         0x00000008
39 #define EPOLLHUP         0x00000010
40 #define EPOLLRDNORM      0x00000040
41 #define EPOLLRDBAND      0x00000080
42 #define EPOLLWRNORM      0x00000100
43 #define EPOLLWRBAND      0x00000200
44 #define EPOLLMSG         0x00000400
45 #define EPOLLET          0x80000000
46 
47 #define EPOLL_CTL_ADD    1
48 #define EPOLL_CTL_DEL    2
49 #define EPOLL_CTL_MOD    3
50 
51 typedef union epoll_data
52 {
53     void *ptr;
54     int fd;
55     unsigned int u32;
56     unsigned long long u64;
57 } epoll_data_t;
58 
59 struct epoll_event
60 {
61     unsigned int events;
62     epoll_data_t data;
63 };
64 
65 int epoll_create(int size);
66 int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event);
67 int epoll_wait(int epfd, struct epoll_event *events, int max, int timeout);
68 
69 __END_DECLS
70 
71 #endif  /* _SYS_EPOLL_H_ */
72 
73