xnu-7195.101.1.tar.gz

[apple/xnu.git] / bsd / sys / poll.h

diff --git a/bsd/sys/poll.h b/bsd/sys/poll.h
index 07d48166c592d90636ab6c2de6348caeaa5a35e3..6558df60371ed5a11bb7aebf3e0889b8f390f75b 100644 (file)
--- a/bsd/sys/poll.h
+++ b/bsd/sys/poll.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- * 
+ *
  * 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
@@ -11,10 +11,10 @@
  * 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,
@@ -22,7 +22,7 @@
  * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*-
@@ -55,7 +55,7 @@
  */
 
 #ifndef _SYS_POLL_H_
-#define        _SYS_POLL_H_
+#define _SYS_POLL_H_
 
 /*
  * This file is intended to be compatible with the traditional poll.h.
@@ -65,36 +65,35 @@
  * Requestable events.  If poll(2) finds any of these set, they are
  * copied to revents on return.
  */
-#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 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)
+#define POLLSTANDARD    (POLLIN|POLLPRI|POLLOUT|POLLRDNORM|POLLRDBAND|\
+                        POLLWRBAND|POLLERR|POLLHUP|POLLNVAL)
 
-struct pollfd
-{
+struct pollfd {
        int     fd;
        short   events;
        short   revents;
@@ -112,7 +111,7 @@ __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);
+extern int poll(struct pollfd *, nfds_t, int) __DARWIN_ALIAS_C(poll);
 
 __END_DECLS