+++ /dev/null
-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction. Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License. This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2005 Develer S.r.l. (http://www.develer.com/)
- * -->
- *
- * \version $Id$
- *
- * \brief Notifier obj (implementation).
- *
- * \version $Id$
- * \author Bernardo Innocenti <bernie@develer.com>
- * \author Francesco Sacchi <batt@develer.com>
- */
-
-/*#*
- *#* $Log$
- *#* Revision 1.2 2006/07/19 12:56:26 bernie
- *#* Convert to new Doxygen style.
- *#*
- *#* Revision 1.1 2005/11/04 18:26:38 bernie
- *#* Import into DevLib.
- *#*
- *#* Revision 1.5 2005/06/09 13:49:22 batt
- *#* Reformat; correct some comments.
- *#*
- *#* Revision 1.4 2005/06/09 13:23:58 batt
- *#* Add some comments.
- *#*
- *#* Revision 1.3 2005/06/08 17:32:33 batt
- *#* Switch to new messaging system.
- *#*
- *#* Revision 1.2 2005/06/06 11:04:12 batt
- *#* Add some comments.
- *#*
- *#* Revision 1.1 2005/05/26 08:32:53 batt
- *#* Add new Develer widget system :)
- *#*
- *#*/
-
-#include <cfg/debug.h>
-
-#include <dt/dtag.h>
-#include <dt/dnotifier.h>
-#include <mware/list.h>
-
-/**
- * Default update used to notify target: notify all trasparently all
- * targets in the list.
- */
-static void notifier_update(DNotifier *n, dtag_t tag, dval_t val)
-{
- dnotify_targets(n, tag, val);
-}
-
-/**
- * Init.
- */
-void notifier_init(DNotifier *n)
-{
- // Init instance
- n->update = notifier_update;
- LIST_INIT(&n->targets);
-}
-
-/**
- * Search in the map a tag and a val corresponding to the ones supplied.
- * If a match is found change them to the corresponding ones in the map.
- * If map is NULL the filter is trasparent and all messages sent to filter
- * will be forwarded to its target.
- */
-void filter_update(DFilter *f, dtag_t tag, dval_t val)
-{
-
- const DFilterMap *map = f->map;
-
- if (map)
- {
- while (map->src.tag != TAG_END)
- {
- if ((map->src.tag == tag) && (map->src.val == val))
- {
- tag = map->dst.tag;
- val = map->dst.val;
- break;
- }
- /* TAG_ANY matches anything */
- if (map->src.tag == TAG_ANY)
- break;
- map++;
- }
-
- if (map->src.tag != TAG_END)
- dnotify(f->target, tag, val);
- }
- else
- dnotify(f->target, tag, val);
-}
-
-
-/**
- * Search in the table a tag corresponding to the one supplied and a val
- * that has at least the mask map supplied bits to one.
- * If a match is found change them to the corresponding ones in the map.
- * If map is NULL the filter is trasparent and all messages sent to filter
- * will be forwarded to its target.
- */
-void filter_mask_update(DFilter *f, dtag_t tag, dval_t val)
-{
-
- const DFilterMap *map = f->map;
- dfilter_mask_t mask;
-
- if (map)
- {
- while (map->src.tag != TAG_END)
- {
- mask = (dfilter_mask_t) map->src.val;
- if ((map->src.tag == tag) && ((mask & (dfilter_mask_t)val) == mask))
- {
- tag = map->dst.tag;
- val = map->dst.val;
- break;
- }
- /* TAG_ANY matches anything */
- if (map->src.tag == TAG_ANY)
- break;
- map++;
- }
-
-
- if (map->src.tag != TAG_END)
- dnotify(f->target, tag, val);
- }
- else
- dnotify(f->target, tag, val);
-}
-
-
-#define FILTER_MAGIC_ACTIVE 0xAA
-/**
- * Init filter.
- * If \a masked is true, all the fields value in \a map must be interpreted as a mask of bits.
- */
-void filter_init(DFilter *f, const DFilterMap *map, bool masked, DNotifier *source, DNotifier *target)
-{
- // Init instance
- if (masked)
- f->update = (update_filter_ptr)filter_mask_update;
- else
- f->update = (update_filter_ptr)filter_update;
-
- /* set filter map and target */
- f->map = map;
- f->target = target;
-
- /* these ensure that the filter is not inserted in more than one list */
- ASSERT(f->magic != FILTER_MAGIC_ACTIVE);
- DB(f->magic = FILTER_MAGIC_ACTIVE;)
-
- /* Add the filter to source filter list */
- ADDTAIL(&source->targets, &f->link);
-}
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