/*******************************************************************
*                                                                  *
*             This software is part of the ast package             *
*                Copyright (c) 1982-2004 AT&T Corp.                *
*        and it may only be used by you under license from         *
*                       AT&T Corp. ("AT&T")                        *
*         A copy of the Source Code Agreement is available         *
*                at the AT&T Internet web site URL                 *
*                                                                  *
*       http://www.research.att.com/sw/license/ast-open.html       *
*                                                                  *
*    If you have copied or used this software without agreeing     *
*        to the terms of the license you are infringing on         *
*           the license and copyright and are violating            *
*               AT&T's intellectual property rights.               *
*                                                                  *
*            Information and Software Systems Research             *
*                        AT&T Labs Research                        *
*                         Florham Park NJ                          *
*                                                                  *
*                David Korn <dgk@research.att.com>                 *
*                                                                  *
*******************************************************************/
#pragma prototyped

#include	"defs.h"
/*
 *  This installs a hook to allow the processing of events when
 *  the shell is waiting for input and when the shell is
 *  waiting for job completion.
 *  The previous waitevent hook function is returned
 */


void	*sh_waitnotify(int(*newevent)(int,long,int))
{
	int (*old)(int,long,int);
	old = sh.waitevent;
	sh.waitevent = newevent;
	return((void*)old);
}

