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Add poll, so this is now needed

Eric Andersen 23 years ago
parent
commit
9e750508ce
1 changed files with 51 additions and 0 deletions
  1. 51 0
      include/sys/poll.h

+ 51 - 0
include/sys/poll.h

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+/* Compatibility definitions for System V `poll' interface.
+   Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef	_SYS_POLL_H
+#define	_SYS_POLL_H	1
+
+#include <features.h>
+
+/* Get the platform dependent bits of `poll'.  */
+#include <bits/poll.h>
+
+__BEGIN_DECLS
+
+/* Data structure describing a polling request.  */
+struct pollfd
+  {
+    int fd;			/* File descriptor to poll.  */
+    short int events;		/* Types of events poller cares about.  */
+    short int revents;		/* Types of events that actually occurred.  */
+  };
+
+
+/* Poll the file descriptors described by the NFDS structures starting at
+   FDS.  If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for
+   an event to occur; if TIMEOUT is -1, block until an event occurs.
+   Returns the number of file descriptors with events, zero if timed out,
+   or -1 for errors.  */
+extern int __poll __P ((struct pollfd *__fds, unsigned long int __nfds,
+			int __timeout));
+extern int poll __P ((struct pollfd *__fds, unsigned long int __nfds,
+		      int __timeout));
+
+__END_DECLS
+
+#endif	/* sys/poll.h */