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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* Copyright (C) 2008-2009 Richard Hughes <richard@hughsie.com>
*
* Licensed under the GNU General Public License Version 2
*
* 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 "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <glib.h>
#include "up-native.h"
#include "up-device-list.h"
static void up_device_list_finalize (GObject *object);
#define UP_DEVICE_LIST_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), UP_TYPE_DEVICE_LIST, UpDeviceListPrivate))
struct UpDeviceListPrivate
{
GPtrArray *array;
GHashTable *map_native_path_to_device;
};
G_DEFINE_TYPE (UpDeviceList, up_device_list, G_TYPE_OBJECT)
/**
* up_device_list_lookup:
*
* Convert a native %GObject into a %UpDevice -- we use the native path
* to look these up as it's the only thing they share.
*
* Return value: the object, or %NULL if not found. Free with g_object_unref()
**/
GObject *
up_device_list_lookup (UpDeviceList *list, GObject *native)
{
GObject *device;
const gchar *native_path;
g_return_val_if_fail (UP_IS_DEVICE_LIST (list), NULL);
/* does device exist in db? */
native_path = up_native_get_native_path (native);
if (native_path == NULL)
return NULL;
device = g_hash_table_lookup (list->priv->map_native_path_to_device, native_path);
if (device == NULL)
return NULL;
return g_object_ref (device);
}
/**
* up_device_list_insert:
*
* Insert a %GObject device and it's mapping to a backing %UpDevice
* into a list of devices.
**/
gboolean
up_device_list_insert (UpDeviceList *list, GObject *native, GObject *device)
{
const gchar *native_path;
g_return_val_if_fail (UP_IS_DEVICE_LIST (list), FALSE);
g_return_val_if_fail (native != NULL, FALSE);
g_return_val_if_fail (device != NULL, FALSE);
native_path = up_native_get_native_path (native);
if (native_path == NULL) {
g_warning ("failed to get native path");
return FALSE;
}
g_hash_table_insert (list->priv->map_native_path_to_device,
g_strdup (native_path), g_object_ref (device));
g_ptr_array_add (list->priv->array, g_object_ref (device));
g_debug ("added %s", native_path);
return TRUE;
}
/**
* up_device_list_remove_cb:
**/
static gboolean
up_device_list_remove_cb (gpointer key, gpointer value, gpointer user_data)
{
if (value == user_data) {
g_debug ("removed %s", (char *) key);
return TRUE;
}
return FALSE;
}
/**
* up_device_list_remove:
**/
gboolean
up_device_list_remove (UpDeviceList *list, GObject *device)
{
g_return_val_if_fail (UP_IS_DEVICE_LIST (list), FALSE);
g_return_val_if_fail (device != NULL, FALSE);
/* remove the device from the db */
g_hash_table_foreach_remove (list->priv->map_native_path_to_device,
up_device_list_remove_cb, device);
g_ptr_array_remove (list->priv->array, device);
/* we're removed the last instance? */
if (!G_IS_OBJECT (device)) {
g_warning ("INTERNAL STATE CORRUPT: we've removed the last instance of %p", device);
return FALSE;
}
return TRUE;
}
/**
* up_device_list_remove_cb:
**/
static gboolean
up_device_list_remove_all_cb (gpointer key, gpointer value, gpointer user_data)
{
return TRUE;
}
/**
* up_device_list_clear:
* @list: This class instance
* @unref_it: %TRUE if you own a reference to the objects and want to drop it.
*
* Clear the contents of this list.
**/
void
up_device_list_clear (UpDeviceList *list, gboolean unref_it)
{
g_return_if_fail (UP_IS_DEVICE_LIST (list));
/* caller owns these objects, but wants to destroy them */
if (unref_it)
g_ptr_array_foreach (list->priv->array, (GFunc) g_object_unref, NULL);
/* remove all devices from the db */
g_hash_table_foreach_remove (list->priv->map_native_path_to_device,
up_device_list_remove_all_cb, NULL);
g_ptr_array_set_size (list->priv->array, 0);
}
/**
* up_device_list_get_array:
*
* This is quick to iterate when we don't have GObject's to resolve
*
* Return value: the array, free with g_ptr_array_unref()
**/
GPtrArray *
up_device_list_get_array (UpDeviceList *list)
{
g_return_val_if_fail (UP_IS_DEVICE_LIST (list), NULL);
return g_ptr_array_ref (list->priv->array);
}
/**
* up_device_list_class_init:
* @klass: The UpDeviceListClass
**/
static void
up_device_list_class_init (UpDeviceListClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = up_device_list_finalize;
g_type_class_add_private (klass, sizeof (UpDeviceListPrivate));
}
/**
* up_device_list_init:
* @list: This class instance
**/
static void
up_device_list_init (UpDeviceList *list)
{
list->priv = UP_DEVICE_LIST_GET_PRIVATE (list);
list->priv->array = g_ptr_array_new_with_free_func (g_object_unref);
list->priv->map_native_path_to_device = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
}
/**
* up_device_list_finalize:
* @object: The object to finalize
**/
static void
up_device_list_finalize (GObject *object)
{
UpDeviceList *list;
g_return_if_fail (UP_IS_DEVICE_LIST (object));
list = UP_DEVICE_LIST (object);
g_ptr_array_unref (list->priv->array);
g_hash_table_unref (list->priv->map_native_path_to_device);
G_OBJECT_CLASS (up_device_list_parent_class)->finalize (object);
}
/**
* up_device_list_new:
*
* Return value: a new UpDeviceList object.
**/
UpDeviceList *
up_device_list_new (void)
{
return g_object_new (UP_TYPE_DEVICE_LIST, NULL);
}
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