| /*- |
| * Copyright (c) 1997 Peter Wemm <peter@freebsd.org> |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * $FreeBSD$ |
| */ |
| |
| #ifndef _BSD_SYS_POLL_H_ |
| #define _BSD_SYS_POLL_H_ |
| |
| #include <sys/bsd_cdefs.h> |
| |
| #include <sys/poll.h> |
| |
| #if 0 |
| /* |
| * This file is intended to be compatible with the traditional poll.h. |
| */ |
| |
| typedef unsigned int nfds_t; |
| |
| /* |
| * This structure is passed as an array to poll(2). |
| */ |
| struct pollfd { |
| int fd; /* which file descriptor to poll */ |
| short events; /* events we are interested in */ |
| short revents; /* events found on return */ |
| }; |
| |
| /* |
| * Requestable events. If poll(2) finds any of these set, they are |
| * copied to revents on return. |
| * XXX Note that FreeBSD doesn't make much distinction between POLLPRI |
| * and POLLRDBAND since none of the file types have distinct priority |
| * bands - and only some have an urgent "mode". |
| * XXX Note POLLIN isn't really supported in true SVSV terms. Under SYSV |
| * POLLIN includes all of normal, band and urgent data. Most poll handlers |
| * on FreeBSD only treat it as "normal" data. |
| */ |
| #define POLLIN 0x0001 /* any readable data available */ |
| #define POLLPRI 0x0002 /* OOB/Urgent readable data */ |
| #define POLLOUT 0x0004 /* file descriptor is writeable */ |
| #define POLLRDNORM 0x0040 /* non-OOB/URG data available */ |
| #define POLLWRNORM POLLOUT /* no write type differentiation */ |
| #define POLLRDBAND 0x0080 /* OOB/Urgent readable data */ |
| #define POLLWRBAND 0x0100 /* OOB/Urgent data can be written */ |
| #endif //0 |
| |
| #if __BSD_VISIBLE |
| /* General FreeBSD extension (currently only supported for sockets): */ |
| #define POLLINIGNEOF 0x2000 /* like POLLIN, except ignore EOF */ |
| #endif |
| |
| #if 0 |
| /* |
| * These events are set if they occur regardless of whether they were |
| * requested. |
| */ |
| #define POLLERR 0x0008 /* some poll error occurred */ |
| #define POLLHUP 0x0010 /* file descriptor was "hung up" */ |
| #define POLLNVAL 0x0020 /* requested events "invalid" */ |
| |
| #endif //0 |
| |
| #if __BSD_VISIBLE |
| |
| #define POLLSTANDARD (POLLIN|POLLPRI|POLLOUT|POLLRDNORM|POLLRDBAND|\ |
| POLLWRBAND|POLLERR|POLLHUP|POLLNVAL) |
| |
| /* |
| * Request that poll() wait forever. |
| * XXX in SYSV, this is defined in stropts.h, which is not included |
| * by poll.h. |
| */ |
| #define INFTIM (-1) |
| |
| #endif |
| |
| #if 0 |
| #ifndef _FREEBSD_KERNEL |
| |
| __BEGIN_DECLS |
| int poll(struct pollfd _pfd[], nfds_t _nfds, int _timeout); |
| __END_DECLS |
| |
| #endif /* !_FREEBSD_KERNEL */ |
| |
| #endif //0 |
| |
| #endif /* !_BSD_SYS_POLL_H_ */ |
