/*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
- *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*-
* Copyright (c) 1997 Peter Wemm <peter@freebsd.org>
*/
#ifndef _SYS_POLL_H_
-#define _SYS_POLL_H_
+#define _SYS_POLL_H_
-#include <sys/appleapiopts.h>
-
-#ifdef __APPLE_API_PRIVATE
/*
- * This file is intended to be compatable with the traditional poll.h.
+ * This file is intended to be compatible with the traditional poll.h.
*/
/*
* 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 */
+#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 */
/*
* FreeBSD extensions: polling on a regular file might return one
- * of these events (currently only supported on UFS).
+ * of these events (currently only supported on local filesystems).
*/
-#define POLLEXTEND 0x0200 /* file may have been extended */
-#define POLLATTRIB 0x0400 /* file attributes may have changed */
-#define POLLNLINK 0x0800 /* (un)link/rename may have happened */
-#define POLLWRITE 0x1000 /* file's contents may have changed */
+#define POLLEXTEND 0x0200 /* file may have been extended */
+#define POLLATTRIB 0x0400 /* file attributes may have changed */
+#define POLLNLINK 0x0800 /* (un)link/rename may have happened */
+#define POLLWRITE 0x1000 /* file's contents may have changed */
/*
* 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" */
+#define POLLERR 0x0008 /* some poll error occurred */
+#define POLLHUP 0x0010 /* file descriptor was "hung up" */
+#define POLLNVAL 0x0020 /* requested events "invalid" */
+
+#define POLLSTANDARD (POLLIN|POLLPRI|POLLOUT|POLLRDNORM|POLLRDBAND|\
+ POLLWRBAND|POLLERR|POLLHUP|POLLNVAL)
+
+struct pollfd {
+ int fd;
+ short events;
+ short revents;
+};
+
+typedef unsigned int nfds_t;
+
+#if !defined(KERNEL)
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+/*
+ * This is defined here (instead of <poll.h>) because this is where
+ * traditional SVR4 code will look to find it.
+ */
+extern int poll(struct pollfd *, nfds_t, int) __DARWIN_ALIAS_C(poll);
-#define POLLSTANDARD (POLLIN|POLLPRI|POLLOUT|POLLRDNORM|POLLRDBAND|\
- POLLWRBAND|POLLERR|POLLHUP|POLLNVAL)
+__END_DECLS
-#endif /* __APPLE_API_PRIVATE */
+#endif /* !KERNEL */
#endif /* !_SYS_POLL_H_ */
projects / apple / xnu.git / blobdiff