SSMInternal.h revision 2af0dd14e6c1c9297537694bd8ff24ae5838620c
/* $Id$ */
/** @file
* SSM - Internal header file.
*/
/*
* Copyright (C) 2006-2007 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
#ifndef ___SSMInternal_h
#define ___SSMInternal_h
#include <VBox/cdefs.h>
#include <VBox/types.h>
#include <VBox/ssm.h>
RT_BEGIN_DECLS
/** @defgroup grp_ssm_int Internals
* @ingroup grp_ssm
* @internal
* @{
*/
/**
* Data unit callback type.
*/
typedef enum SSMUNITTYPE
{
/** PDM Device . */
SSMUNITTYPE_DEV = 1,
/** PDM Driver. */
SSMUNITTYPE_DRV,
/** VM Internal. */
SSMUNITTYPE_INTERNAL,
/** External Wrapper. */
SSMUNITTYPE_EXTERNAL
} SSMUNITTYPE;
/** Pointer to a data unit descriptor. */
typedef struct SSMUNIT *PSSMUNIT;
/**
* Data unit descriptor.
*/
typedef struct SSMUNIT
{
/** Pointer ot the next one in the list. */
PSSMUNIT pNext;
/** Called in this save/load operation.
* The flag is used to determin whether there is need for a call to
* done or not. */
bool fCalled;
/** Callback interface type. */
SSMUNITTYPE enmType;
/** Type specific data. */
union
{
/** SSMUNITTYPE_DEV. */
struct
{
/** Prepare save. */
PFNSSMDEVSAVEPREP pfnSavePrep;
/** Execute save. */
PFNSSMDEVSAVEEXEC pfnSaveExec;
/** Done save. */
PFNSSMDEVSAVEDONE pfnSaveDone;
/** Prepare load. */
PFNSSMDEVLOADPREP pfnLoadPrep;
/** Execute load. */
PFNSSMDEVLOADEXEC pfnLoadExec;
/** Done load. */
PFNSSMDEVLOADDONE pfnLoadDone;
/** Device instance. */
PPDMDEVINS pDevIns;
} Dev;
/** SSMUNITTYPE_DRV. */
struct
{
/** Prepare save. */
PFNSSMDRVSAVEPREP pfnSavePrep;
/** Execute save. */
PFNSSMDRVSAVEEXEC pfnSaveExec;
/** Done save. */
PFNSSMDRVSAVEDONE pfnSaveDone;
/** Prepare load. */
PFNSSMDRVLOADPREP pfnLoadPrep;
/** Execute load. */
PFNSSMDRVLOADEXEC pfnLoadExec;
/** Done load. */
PFNSSMDRVLOADDONE pfnLoadDone;
/** Driver instance. */
PPDMDRVINS pDrvIns;
} Drv;
/** SSMUNITTYPE_INTERNAL. */
struct
{
/** Prepare save. */
PFNSSMINTSAVEPREP pfnSavePrep;
/** Execute save. */
PFNSSMINTSAVEEXEC pfnSaveExec;
/** Done save. */
PFNSSMINTSAVEDONE pfnSaveDone;
/** Prepare load. */
PFNSSMINTLOADPREP pfnLoadPrep;
/** Execute load. */
PFNSSMINTLOADEXEC pfnLoadExec;
/** Done load. */
PFNSSMINTLOADDONE pfnLoadDone;
} Internal;
/** SSMUNITTYPE_EXTERNAL. */
struct
{
/** Prepare save. */
PFNSSMEXTSAVEPREP pfnSavePrep;
/** Execute save. */
PFNSSMEXTSAVEEXEC pfnSaveExec;
/** Done save. */
PFNSSMEXTSAVEDONE pfnSaveDone;
/** Prepare load. */
PFNSSMEXTLOADPREP pfnLoadPrep;
/** Execute load. */
PFNSSMEXTLOADEXEC pfnLoadExec;
/** Done load. */
PFNSSMEXTLOADDONE pfnLoadDone;
/** User data. */
void *pvUser;
} External;
} u;
/** Data layout version. */
uint32_t u32Version;
/** Instance number. */
uint32_t u32Instance;
/** The guessed size of the data unit - used only for progress indication. */
size_t cbGuess;
/** Name size. (bytes) */
size_t cchName;
/** Name of this unit. (extends beyond the defined size) */
char szName[1];
} SSMUNIT;
/**
* SSM VM Instance data.
* Changes to this must checked against the padding of the cfgm union in VM!
*
* @todo Move this to UVM.
*/
typedef struct SSM
{
/** FIFO of data entity descriptors. */
R3PTRTYPE(PSSMUNIT) pHead;
/** For lazy init. */
bool fInitialized;
} SSM;
/** Pointer to SSM VM instance data. */
typedef SSM *PSSM;
/** @} */
RT_END_DECLS
#endif /* !___SSMInternal_h */