1 /* 2 * include/linux/eventpoll.h ( Efficent 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 (at) xmailserver.org> 11 * 12 */ 13 14 #ifndef _LINUX_EVENTPOLL_H 15 #define _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 29 /* Set the One Shot behaviour for the target file descriptor */ 30 #define EPOLLONESHOT (1 << 30) 31 32 /* Set the Edge Triggered behaviour for the target file descriptor */ 33 #define EPOLLET (1 << 31) 34 35 /* 36 * On x86-64 make the 64bit structure have the same alignment as the 37 * 32bit structure. This makes 32bit emulation easier. 38 * 39 * UML/x86_64 needs the same packing as x86_64 40 */ 41 #ifdef __x86_64__ 42 #define EPOLL_PACKED __attribute__((packed)) 43 #else 44 #define EPOLL_PACKED 45 #endif 46 47 struct epoll_event { 48 __u32 events; 49 __u64 data; 50 } EPOLL_PACKED; 51 52 53 #endif /* #ifndef _LINUX_EVENTPOLL_H */ 54 55
