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 29 #ifndef _SYS_EPOLL_H_ 30 #define _SYS_EPOLL_H_ 31 32 #include <sys/cdefs.h> 33 #include <sys/types.h> 34 #include <signal.h> /* For sigset_t. */ 35 36 #include <linux/eventpoll.h> 37 /* TODO: https://lkml.org/lkml/2017/2/23/416 has a better fix. */ 38 #undef EPOLLWAKEUP 39 #undef EPOLLONESHOT 40 #undef EPOLLET 41 42 __BEGIN_DECLS 43 44 /* TODO: remove once https://lkml.org/lkml/2017/2/23/417 is upstream. */ 45 #define EPOLLIN 0x00000001 46 #define EPOLLPRI 0x00000002 47 #define EPOLLOUT 0x00000004 48 #define EPOLLERR 0x00000008 49 #define EPOLLHUP 0x00000010 50 #define EPOLLRDNORM 0x00000040 51 #define EPOLLRDBAND 0x00000080 52 #define EPOLLWRNORM 0x00000100 53 #define EPOLLWRBAND 0x00000200 54 #define EPOLLMSG 0x00000400 55 #define EPOLLRDHUP 0x00002000 56 #define EPOLLWAKEUP 0x20000000 57 #define EPOLLONESHOT 0x40000000 58 #define EPOLLET 0x80000000 59 60 typedef union epoll_data { 61 void* ptr; 62 int fd; 63 uint32_t u32; 64 uint64_t u64; 65 } epoll_data_t; 66 67 struct epoll_event { 68 uint32_t events; 69 epoll_data_t data; 70 } 71 #ifdef __x86_64__ 72 __packed 73 #endif 74 ; 75 76 int epoll_create(int); 77 int epoll_create1(int) __INTRODUCED_IN(21); 78 int epoll_ctl(int, int, int, struct epoll_event*); 79 int epoll_wait(int, struct epoll_event*, int, int); 80 int epoll_pwait(int, struct epoll_event*, int, int, const sigset_t*) __INTRODUCED_IN(21); 81 82 __END_DECLS 83 84 #endif /* _SYS_EPOLL_H_ */ 85
