X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d7e50217d7adf6e52786a38bcaa4cd698cb9a79e..c6bf4f310a33a9262d455ea4d3f0630b1255e3fe:/bsd/sys/poll.h

diff --git a/bsd/sys/poll.h b/bsd/sys/poll.h
index 281cac737..6558df603 100644
--- a/bsd/sys/poll.h
+++ b/bsd/sys/poll.h
@@ -1,17 +1,20 @@
 /*
- * 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,
@@ -19,8 +22,8 @@
  * 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>
@@ -52,53 +55,66 @@
  */
 
 #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_ */