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 */ | ||
