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[/] [or1k/] [trunk/] [linux/] [uClibc/] [include/] [sys/] [poll.h] - Rev 1765

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/* Compatibility definitions for System V `poll' interface.
   Copyright (C) 1994,96,97,98,99,2000,2001 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 Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; 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>
 
 
/* Type used for the number of file descriptors.  */
typedef unsigned long int nfds_t;
 
/* 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.  */
  };
 
 
__BEGIN_DECLS
 
/* 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 (struct pollfd *__fds, nfds_t __nfds, int __timeout) __THROW;
 
__END_DECLS
 
#endif	/* sys/poll.h */
 

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