/usr/include/directfb/fusion/protocol.h is in libdirectfb-dev 1.7.7-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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(c) Copyright 2012-2013 DirectFB integrated media GmbH
(c) Copyright 2001-2013 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 Shimokawa <andi@directfb.org>,
Marek Pikarski <mass@directfb.org>,
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_PROTOCOL_H__
#define __FUSION_PROTOCOL_H__
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <direct/types.h>
typedef enum {
FMT_SEND,
FMT_ENTER,
FMT_LEAVE,
FMT_CALL,
FMT_CALLRET,
FMT_REACTOR
} FusionMessageType;
/*
* Enter world (slave).
*/
typedef struct {
FusionMessageType type;
FusionID fusion_id;
} FusionEnter;
/*
* Leave the world (slave).
*/
typedef struct {
FusionMessageType type;
FusionID fusion_id;
} FusionLeave;
/*
* Execute a call.
*/
typedef struct {
FusionMessageType type;
unsigned int serial;
FusionID caller;
int call_id;
int call_arg;
unsigned int call_length; /* length of data */
unsigned int ret_length; /* maximum length of return data */
void *handler;
void *handler3;
void *ctx;
FusionCallExecFlags flags;
} FusionCallMessage, FusionCallExecute;
/*
* Send call return.
*/
typedef struct {
FusionMessageType type;
unsigned int length;
} FusionCallReturn;
/*
* Send reactor message.
*/
typedef struct {
FusionMessageType type;
int id;
int channel;
FusionRef *ref;
} FusionReactorMessage;
typedef union {
FusionMessageType type;
FusionEnter enter;
FusionLeave leave;
FusionCallMessage call;
FusionCallReturn callret;
FusionReactorMessage reactor;
} FusionMessage;
#endif
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