/*
 *      fm-list.c
 *      
 *      Copyright 2009 PCMan <pcman.tw@gmail.com>
 *      
 *      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., 51 Franklin Street, Fifth Floor, Boston,
 *      MA 02110-1301, USA.
 */

#include "fm-list.h"

FmList* fm_list_new(FmListFuncs* funcs)
{
	FmList* list = g_slice_new(FmList);
	list->funcs = funcs;
	g_queue_init(&list->list);
	list->n_ref = 1;
	return list;
}

FmList* fm_list_ref(gpointer list)
{
	g_atomic_int_inc(&FM_LIST(list)->n_ref);
	return FM_LIST(list);
}

void fm_list_unref(gpointer list)
{
	if(g_atomic_int_dec_and_test(&FM_LIST(list)->n_ref))
	{
		g_queue_foreach((GQueue*)list, (GFunc)FM_LIST(list)->funcs->item_unref, NULL);
		g_slice_free(FmList, list);
	}
}

void fm_list_clear(gpointer list)
{
	g_queue_foreach((GQueue*)list, (GFunc)FM_LIST(list)->funcs->item_unref, NULL);
	g_queue_clear((GQueue*)list);
}

void fm_list_remove(gpointer list, gpointer data)
{
	GList* l = ((GQueue*)list)->head;
	for(;l; l=l->next)
	{
		if(l->data == data)
		{
			FM_LIST(list)->funcs->item_unref(data);
			break;
		}
	}
	if(l)
		g_queue_delete_link((GQueue*)data, l);
}

void fm_list_remove_all(gpointer list, gpointer data)
{
	/* FIXME: the performance can be better... */
	GList* l = ((GQueue*)list)->head;
	for(;l; l=l->next)
	{
		if(l->data == data)
			FM_LIST(list)->funcs->item_unref(data);
	}
	g_queue_remove_all((GQueue*)list, data);
}

void fm_list_delete_link(gpointer list, gpointer l_)
{
	FM_LIST(list)->funcs->item_unref(((GList*)l_)->data);	
	g_queue_delete_link((GQueue*)list, l_);
}