1 /** @file 2 Definitions in support of the poll() function. 3 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 38 Copyright (c) 2011, Intel Corporation. All rights reserved.<BR> 39 This program and the accompanying materials are licensed and made available under 40 the terms and conditions of the BSD License that accompanies this distribution. 41 The full text of the license may be found at 42 http://opensource.org/licenses/bsd-license.php. 43 44 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 45 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 46 47 NetBSD: poll.h,v 1.11 2005/12/11 12:25:20 christos Exp 48 **/ 49 #ifndef _SYS_POLL_H_ 50 #define _SYS_POLL_H_ 51 52 #include <sys/featuretest.h> 53 #include <sys/EfiCdefs.h> 54 55 typedef unsigned int nfds_t; 56 57 struct pollfd { 58 int fd; /* file descriptor */ 59 short events; /* events to look for */ 60 short revents; /* events returned */ 61 }; 62 63 /* 64 * Testable events (may be specified in events field). 65 */ 66 #define POLLIN 0x0001 67 #define POLLPRI 0x0002 68 #define POLLOUT 0x0004 69 #define POLLRDNORM 0x0040 70 #define POLLWRNORM POLLOUT 71 #define POLLRDBAND 0x0080 72 #define POLLWRBAND 0x0100 73 74 /* 75 * Non-testable events (ignored in events field, valid in return only). 76 */ 77 #define POLLERR 0x0008 78 #define POLLHUP 0x0010 79 #define POLLNVAL 0x0020 // Invalid parameter in POLL call 80 #define POLL_RETONLY (POLLERR | POLLHUP | POLLNVAL) 81 82 /* 83 * Infinite timeout value. 84 */ 85 #define INFTIM -1 86 87 __BEGIN_DECLS 88 int poll(struct pollfd *, nfds_t, int); 89 __END_DECLS 90 91 #endif /* !_SYS_POLL_H_ */ 92
