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diff --git a/Source/DirectFB/lib/fusion/fusion.h b/Source/DirectFB/lib/fusion/fusion.h
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+/*
+   (c) Copyright 2001-2009  The world wide DirectFB Open Source Community (directfb.org)
+   (c) Copyright 2000-2004  Convergence (integrated media) GmbH
+
+   All rights reserved.
+
+   Written by Denis Oliver Kropp <dok@directfb.org>,
+              Andreas Hundt <andi@fischlustig.de>,
+              Sven Neumann <neo@directfb.org>,
+              Ville Syrjälä <syrjala@sci.fi> and
+              Claudio Ciccani <klan@users.sf.net>.
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+*/
+
+#ifndef __FUSION__FUSION_H__
+#define __FUSION__FUSION_H__
+
+#include <sys/types.h>
+
+#include <fusion/types.h>
+
+typedef enum {
+     FER_ANY,
+     FER_MASTER,
+     FER_SLAVE
+} FusionEnterRole;
+
+typedef enum {
+     FFA_CLOSE,
+     FFA_FORK
+} FusionForkAction;
+
+typedef enum {
+     FFS_PREPARE,
+     FFS_PARENT,
+     FFS_CHILD
+} FusionForkState;
+
+typedef void (*FusionForkCallback) ( FusionForkAction action, FusionForkState state );
+
+/*
+ * Enters a fusion world by joining or creating it.
+ *
+ * If <b>world_index</b> is negative, the next free index is used to create a new world.
+ * Otherwise the world with the specified index is joined or created.
+ */
+DirectResult fusion_enter( int               world_index,
+                           int               abi_version,
+                           FusionEnterRole   role,
+                           FusionWorld     **ret_world );
+
+/*
+ * Exits the fusion world.
+ *
+ * If 'emergency' is true the function won't join but kill the dispatcher thread.
+ */
+DirectResult fusion_exit( FusionWorld *world,
+                          bool         emergency );
+
+DirectResult fusion_stop_dispatcher( FusionWorld *world,
+                                     bool         emergency );
+
+/*
+ * Sets the fork() action of the calling Fusionee within the world.
+ */
+void fusion_world_set_fork_action( FusionWorld      *world,
+                                   FusionForkAction  action );
+                                   
+/*
+ * Gets the current fork() action.
+ */ 
+FusionForkAction fusion_world_get_fork_action( FusionWorld *world );
+
+/*
+ * Registers a callback called upon fork().
+ */
+void fusion_world_set_fork_callback( FusionWorld        *world,
+                                     FusionForkCallback  callback );
+
+/*
+ * Return the index of the specified world.
+ */
+int fusion_world_index( const FusionWorld *world );
+
+/*
+ * Return the own Fusion ID within the specified world.
+ */
+FusionID fusion_id( const FusionWorld *world );
+
+/*
+ * Return if the world is a multi application world.
+ */
+bool fusion_is_multi( const FusionWorld *world );
+
+/*
+ * Return the thread ID of the Fusion Dispatcher within the specified world.
+ */
+pid_t fusion_dispatcher_tid( const FusionWorld *world );
+
+/*
+ * Return true if this process is the master.
+ */
+bool fusion_master( const FusionWorld *world );
+
+/*
+ * Wait until all pending messages are processed.
+ */
+DirectResult fusion_sync( const FusionWorld *world );
+
+/*
+ * Sends a signal to one or more fusionees and optionally waits
+ * for their processes to terminate.
+ *
+ * A fusion_id of zero means all fusionees but the calling one.
+ * A timeout of zero means infinite waiting while a negative value
+ * means no waiting at all.
+ */
+DirectResult fusion_kill( FusionWorld *world,
+                          FusionID     fusion_id,
+                          int          signal,
+                          int          timeout_ms );
+
+/* Check if a pointer points to the shared memory. */
+bool fusion_is_shared( FusionWorld *world,
+                       const void  *ptr );
+
+#endif
+