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/* GDK - The GIMP Drawing Kit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
#include "gdkprivate.h"
#include <stdio.h>

static guint gdk_xid_hash    (XID *xid);
static gint  gdk_xid_compare (XID *a,
			      XID *b);


static GHashTable *xid_ht = NULL;


void
gdk_xid_table_insert (XID      *xid,
		      gpointer  data)
{
  g_return_if_fail (xid != NULL);

  if (!xid_ht)
    xid_ht = g_hash_table_new ((GHashFunc) gdk_xid_hash,
			       (GCompareFunc) gdk_xid_compare);

  g_hash_table_insert (xid_ht, xid, data);
}

void
gdk_xid_table_remove (XID xid)
{
  if (!xid_ht)
    xid_ht = g_hash_table_new ((GHashFunc) gdk_xid_hash,
			       (GCompareFunc) gdk_xid_compare);

  g_hash_table_remove (xid_ht, &xid);
}

gpointer
gdk_xid_table_lookup (XID xid)
{
  gpointer data = NULL;

  if (xid_ht)
    data = g_hash_table_lookup (xid_ht, &xid);
  
  return data;
}


static guint
gdk_xid_hash (XID *xid)
{
  return *xid;
}

static gint
gdk_xid_compare (XID *a,
		 XID *b)
{
  return (*a == *b);
}