diff options
Diffstat (limited to 'include/uapi/linux/eventpoll.h')
-rw-r--r-- | include/uapi/linux/eventpoll.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h new file mode 100644 index 000000000000..8c99ce7202c5 --- /dev/null +++ b/include/uapi/linux/eventpoll.h | |||
@@ -0,0 +1,66 @@ | |||
1 | /* | ||
2 | * include/linux/eventpoll.h ( Efficient event polling implementation ) | ||
3 | * Copyright (C) 2001,...,2006 Davide Libenzi | ||
4 | * | ||
5 | * This program is free software; you can redistribute it and/or modify | ||
6 | * it under the terms of the GNU General Public License as published by | ||
7 | * the Free Software Foundation; either version 2 of the License, or | ||
8 | * (at your option) any later version. | ||
9 | * | ||
10 | * Davide Libenzi <davidel@xmailserver.org> | ||
11 | * | ||
12 | */ | ||
13 | |||
14 | #ifndef _UAPI_LINUX_EVENTPOLL_H | ||
15 | #define _UAPI_LINUX_EVENTPOLL_H | ||
16 | |||
17 | /* For O_CLOEXEC */ | ||
18 | #include <linux/fcntl.h> | ||
19 | #include <linux/types.h> | ||
20 | |||
21 | /* Flags for epoll_create1. */ | ||
22 | #define EPOLL_CLOEXEC O_CLOEXEC | ||
23 | |||
24 | /* Valid opcodes to issue to sys_epoll_ctl() */ | ||
25 | #define EPOLL_CTL_ADD 1 | ||
26 | #define EPOLL_CTL_DEL 2 | ||
27 | #define EPOLL_CTL_MOD 3 | ||
28 | #define EPOLL_CTL_DISABLE 4 | ||
29 | |||
30 | /* | ||
31 | * Request the handling of system wakeup events so as to prevent system suspends | ||
32 | * from happening while those events are being processed. | ||
33 | * | ||
34 | * Assuming neither EPOLLET nor EPOLLONESHOT is set, system suspends will not be | ||
35 | * re-allowed until epoll_wait is called again after consuming the wakeup | ||
36 | * event(s). | ||
37 | * | ||
38 | * Requires CAP_BLOCK_SUSPEND | ||
39 | */ | ||
40 | #define EPOLLWAKEUP (1 << 29) | ||
41 | |||
42 | /* Set the One Shot behaviour for the target file descriptor */ | ||
43 | #define EPOLLONESHOT (1 << 30) | ||
44 | |||
45 | /* Set the Edge Triggered behaviour for the target file descriptor */ | ||
46 | #define EPOLLET (1 << 31) | ||
47 | |||
48 | /* | ||
49 | * On x86-64 make the 64bit structure have the same alignment as the | ||
50 | * 32bit structure. This makes 32bit emulation easier. | ||
51 | * | ||
52 | * UML/x86_64 needs the same packing as x86_64 | ||
53 | */ | ||
54 | #ifdef __x86_64__ | ||
55 | #define EPOLL_PACKED __attribute__((packed)) | ||
56 | #else | ||
57 | #define EPOLL_PACKED | ||
58 | #endif | ||
59 | |||
60 | struct epoll_event { | ||
61 | __u32 events; | ||
62 | __u64 data; | ||
63 | } EPOLL_PACKED; | ||
64 | |||
65 | |||
66 | #endif /* _UAPI_LINUX_EVENTPOLL_H */ | ||