1/* $OpenBSD: poll.h,v 1.15 2016/06/07 06:12:37 deraadt Exp $ */ 2 3/* 4 * Copyright (c) 1996 Theo de Raadt 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28#ifndef _SYS_POLL_H_ 29#define _SYS_POLL_H_ 30 31typedef struct pollfd { 32 int fd; 33 short events; 34 short revents; 35} pollfd_t; 36 37typedef unsigned int nfds_t; 38 39#define POLLIN 0x0001 40#define POLLPRI 0x0002 41#define POLLOUT 0x0004 42#define POLLERR 0x0008 43#define POLLHUP 0x0010 44#define POLLNVAL 0x0020 45#define POLLRDNORM 0x0040 46#define POLLNORM POLLRDNORM 47#define POLLWRNORM POLLOUT 48#define POLLRDBAND 0x0080 49#define POLLWRBAND 0x0100 50#ifdef _KERNEL 51#define POLL_NOHUP 0x1000 /* internal use only */ 52#endif 53 54#define INFTIM (-1) 55 56#ifndef _KERNEL 57#include <sys/cdefs.h> 58 59#if __BSD_VISIBLE 60#include <sys/_types.h> 61 62#ifndef _SIGSET_T_DEFINED_ 63#define _SIGSET_T_DEFINED_ 64typedef unsigned int sigset_t; 65#endif 66 67#ifndef _TIME_T_DEFINED_ 68#define _TIME_T_DEFINED_ 69typedef __time_t time_t; 70#endif 71 72#ifndef _TIMESPEC_DECLARED 73#define _TIMESPEC_DECLARED 74struct timespec { 75 time_t tv_sec; /* seconds */ 76 long tv_nsec; /* and nanoseconds */ 77}; 78#endif 79#endif /* __BSD_VISIBLE */ 80 81__BEGIN_DECLS 82int poll(struct pollfd[], nfds_t, int); 83#if __BSD_VISIBLE 84int ppoll(struct pollfd[], nfds_t, const struct timespec *, const sigset_t *); 85#endif /* __BSD_VISIBLE */ 86__END_DECLS 87#endif /* _KERNEL */ 88 89#endif /* !_SYS_POLL_H_ */ 90