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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
* Copyright 2008 Red Hat, Inc.
*/
#include "config.h"
#include <string.h>
#include "nm-default.h"
#include "nm-object-cache.h"
#include "nm-object.h"
static GHashTable *cache = NULL;
static void
_init_cache (void)
{
if (G_UNLIKELY (cache == NULL))
cache = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
}
static void
_nm_object_cache_remove_by_path (char *path)
{
_init_cache ();
g_hash_table_remove (cache, path);
g_free (path);
}
void
_nm_object_cache_add (NMObject *object)
{
char *path;
_init_cache ();
path = g_strdup (nm_object_get_path (object));
g_hash_table_insert (cache, path, object);
g_object_set_data_full (G_OBJECT (object), "nm-object-cache-tag",
g_strdup (path), (GDestroyNotify) _nm_object_cache_remove_by_path);
}
NMObject *
_nm_object_cache_get (const char *path)
{
NMObject *object;
_init_cache ();
object = g_hash_table_lookup (cache, path);
return object ? g_object_ref (object) : NULL;
}
void
_nm_object_cache_clear (void)
{
GHashTableIter iter;
GObject *obj;
const char *path;
char *foo;
if (!cache)
return;
g_hash_table_iter_init (&iter, cache);
while (g_hash_table_iter_next (&iter, (gpointer) &path, (gpointer) &obj)) {
/* Remove the callback so that if the object isn't yet released
* by a client, when it does finally get unrefed, it won't trigger
* the cache removal for a new object with the same path as the
* one being released.
*/
foo = g_object_steal_data (obj, "nm-object-cache-tag");
g_free (foo);
g_hash_table_iter_remove (&iter);
}
}
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