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/* TABLIX, PGA general timetable solver */
/* Copyright (C) 2002-2005 Tomaz Solc */
/* This program is free software; you can redistribute it and/or modify */
/* it under the terms of the GNU General Public License as published by */
/* the Free Software Foundation; either version 2 of the License, or */
/* (at your option) any later version. */
/* This program 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 General Public License for more details. */
/* You should have received a copy of the GNU General Public License */
/* along with this program; if not, write to the Free Software */
/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* $Id: available.c,v 1.1 2006-05-15 19:57:11 avian Exp $ */
/** @module
*
* @author Tomaz Solc
* @author-email tomaz.solc@tablix.org
*
* @brief Specifies that a particular constant resource is not available
* at certain timeslots.
*
* There is no fitness function, so the "weight" and "mandatory" module
* options are ignored (restrictions set by this module are always mandatory).
*
* @ingroup School scheduling, General, Multiweek scheduling
*/
/** @resource-restriction not-available
*
* <restriction type="not-available">day period</restriction>
*
* This tuple restriction specifies that the current resource is not available
* at time slot at the specified day and period.
*
* For example:
*
* <resourcetype type="teacher">
* <resource name="A">
* <restriction type="not-available">1 1</restriction>
* </resource>
* </resource>
*
* This means that no event for teacher A will be scheduled on the second
* period of the second day (day and period numbers start at 0).
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include "module.h"
static resourcetype *time;
int not_available(char *restriction, char *cont, resource *res)
{
int i;
int *list;
int listnum;
int timeslot_resid;
int time_resnum;
int tupleid;
int res_typeid;
int res_id;
if(cont==NULL) {
error(_("Restriction '%s' requires an argument"),
"not-available");
return -1;
}
if(res->restype->var) {
error(_("Sorry, you can currently only use restriction '%s' "
"on constant resources"), "not-available");
return -1;
}
time_resnum=time->resnum;
res_typeid=res->restype->typeid;
res_id=res->resid;
timeslot_resid=res_findid(time, cont);
if(timeslot_resid<0) {
error(_("Can't find resource '%s', resource type '%s'"), cont,
"time");
return -1;
}
list=malloc(sizeof(*list)*time_resnum);
if(list==NULL) {
error(_("Can't allocate memory"));
return(-1);
}
listnum=0;
for(i=0;i<time_resnum;i++) {
if(i!=timeslot_resid) {
list[listnum]=i;
listnum++;
}
}
for(tupleid=0;tupleid<dat_tuplenum;tupleid++) {
if(dat_tuplemap[tupleid].resid[res_typeid]==res_id) {
domain_and(dat_tuplemap[tupleid].dom[time->typeid],
list, listnum);
}
}
free(list);
return 0;
}
int module_init(moduleoption *opt)
{
time=restype_find("time");
if(time==NULL) return -1;
handler_res_new(NULL, "not-available", not_available);
return(0);
}
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