1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright (c) 2014, Joyent, Inc. All rights reserved. 14 * Copyright 2020 Oxide Computer Company 15 */ 16 17 #ifndef _SYS_EPOLL_H 18 #define _SYS_EPOLL_H 19 20 #include <sys/types.h> 21 #include <sys/poll.h> 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 typedef union epoll_data { 28 void *ptr; 29 int fd; 30 uint32_t u32; 31 uint64_t u64; 32 } epoll_data_t; 33 34 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 35 #pragma pack(4) 36 #endif 37 38 typedef struct epoll_event { 39 uint32_t events; /* events */ 40 epoll_data_t data; /* user-specified data */ 41 } epoll_event_t; 42 43 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 44 #pragma pack() 45 #endif 46 47 /* 48 * Define the EPOLL* constants in terms of their poll(2)/poll(7) equivalents. 49 * Note that the values match the equivalents in Linux to allow for any binary 50 * compatibility layers to not need to translate them. 51 */ 52 #define EPOLLIN 0x0001 53 #define EPOLLPRI 0x0002 54 #define EPOLLOUT 0x0004 55 #define EPOLLRDNORM 0x0040 56 #define EPOLLRDBAND 0x0080 57 #define EPOLLWRNORM 0x0100 58 #define EPOLLWRBAND 0x0200 59 #define EPOLLMSG 0x0400 /* not used */ 60 #define EPOLLERR 0x0008 61 #define EPOLLHUP 0x0010 62 #define EPOLLRDHUP 0x2000 63 64 #define EPOLLEXCLUSIVE (1UL << 28) /* sets exclusive wake-up mode */ 65 #define EPOLLWAKEUP (1UL << 29) /* no meaning; silently ignored */ 66 #define EPOLLONESHOT (1UL << 30) /* translated to POLLONESHOT */ 67 #define EPOLLET (1UL << 31) /* translated to POLLET */ 68 69 #define EPOLL_CTL_ADD 1 70 #define EPOLL_CTL_DEL 2 71 #define EPOLL_CTL_MOD 3 72 73 #define EPOLL_CLOEXEC 02000000 74 75 #if !defined(_KERNEL) 76 77 extern int epoll_create(int size); 78 extern int epoll_create1(int flags); 79 extern int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event); 80 extern int epoll_wait(int epfd, struct epoll_event *events, 81 int maxevents, int timeout); 82 extern int epoll_pwait(int epfd, struct epoll_event *events, 83 int maxevents, int timeout, const sigset_t *sigmask); 84 85 #endif /* !_KERNEL */ 86 87 #ifdef __cplusplus 88 } 89 #endif 90 91 #endif /* _SYS_EPOLL_H */ 92