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* Copyright (C) 2010 Oracle Corporation
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* This file is part of VirtualBox Open Source Edition (OSE), as
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* available from http://www.virtualbox.org. This file is free software;
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* you can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) as published by the Free Software
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* Foundation, in version 2 as it comes in the "COPYING" file of the
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* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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* The contents of this file may alternatively be used under the terms
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* of the Common Development and Distribution License Version 1.0
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* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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* VirtualBox OSE distribution, in which case the provisions of the
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* CDDL are applicable instead of those of the GPL.
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* You may elect to license modified versions of this file under the
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* terms and conditions of either the GPL or the CDDL or both.
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#ifndef ___VBoxUhgsmi_h__
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#define ___VBoxUhgsmi_h__
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#include <iprt/cdefs.h>
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#include <iprt/types.h>
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typedef struct VBOXUHGSMI *PVBOXUHGSMI;
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typedef struct VBOXUHGSMI_BUFFER *PVBOXUHGSMI_BUFFER;
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typedef void* HVBOXUHGSMI_SYNCHOBJECT;
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VBOXUHGSMI_SYNCHOBJECT_TYPE_NONE = 0,
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VBOXUHGSMI_SYNCHOBJECT_TYPE_EVENT,
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VBOXUHGSMI_SYNCHOBJECT_TYPE_SEMAPHORE
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} VBOXUHGSMI_SYNCHOBJECT_TYPE;
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typedef struct VBOXUHGSMI_BUFFER_LOCK_FLAGS
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uint32_t bReadOnly : 1;
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uint32_t bWriteOnly : 1;
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uint32_t bDonotWait : 1;
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uint32_t bDiscard : 1;
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uint32_t bLockEntire : 1;
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uint32_t Reserved : 27;
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} VBOXUHGSMI_BUFFER_LOCK_FLAGS;
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typedef struct VBOXUHGSMI_BUFFER_SUBMIT_FLAGS
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uint32_t bHostReadOnly : 1;
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uint32_t bHostWriteOnly : 1;
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uint32_t bDoNotRetire : 1; /* <- the buffer will be uset in a subsequent command */
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uint32_t bDoNotSignalCompletion : 1; /* <- do not signal notification object on completion for this alloc */
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uint32_t bEntireBuffer : 1;
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uint32_t Reserved : 27;
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} VBOXUHGSMI_BUFFER_SUBMIT_FLAGS, *PVBOXUHGSMI_BUFFER_SUBMIT_FLAGS;
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/* the caller can specify NULL as a hSynch and specify a valid enmSynchType to make UHGSMI create a proper object itself,
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typedef DECLCALLBACK(int) FNVBOXUHGSMI_BUFFER_CREATE(PVBOXUHGSMI pHgsmi, uint32_t cbBuf,
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VBOXUHGSMI_SYNCHOBJECT_TYPE enmSynchType, HVBOXUHGSMI_SYNCHOBJECT hSynch,
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PVBOXUHGSMI_BUFFER* ppBuf);
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typedef FNVBOXUHGSMI_BUFFER_CREATE *PFNVBOXUHGSMI_BUFFER_CREATE;
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typedef struct VBOXUHGSMI_BUFFER_SUBMIT
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PVBOXUHGSMI_BUFFER pBuf;
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VBOXUHGSMI_BUFFER_SUBMIT_FLAGS fFlags;
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} VBOXUHGSMI_BUFFER_SUBMIT, *PVBOXUHGSMI_BUFFER_SUBMIT;
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typedef DECLCALLBACK(int) FNVBOXUHGSMI_BUFFER_SUBMIT_ASYNCH(PVBOXUHGSMI pHgsmi, PVBOXUHGSMI_BUFFER_SUBMIT aBuffers, uint32_t cBuffers);
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typedef FNVBOXUHGSMI_BUFFER_SUBMIT_ASYNCH *PFNVBOXUHGSMI_BUFFER_SUBMIT_ASYNCH;
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typedef DECLCALLBACK(int) FNVBOXUHGSMI_BUFFER_DESTROY(PVBOXUHGSMI_BUFFER pBuf);
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typedef FNVBOXUHGSMI_BUFFER_DESTROY *PFNVBOXUHGSMI_BUFFER_DESTROY;
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typedef DECLCALLBACK(int) FNVBOXUHGSMI_BUFFER_LOCK(PVBOXUHGSMI_BUFFER pBuf, uint32_t offLock, uint32_t cbLock, VBOXUHGSMI_BUFFER_LOCK_FLAGS fFlags, void**pvLock);
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typedef FNVBOXUHGSMI_BUFFER_LOCK *PFNVBOXUHGSMI_BUFFER_LOCK;
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typedef DECLCALLBACK(int) FNVBOXUHGSMI_BUFFER_UNLOCK(PVBOXUHGSMI_BUFFER pBuf);
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typedef FNVBOXUHGSMI_BUFFER_UNLOCK *PFNVBOXUHGSMI_BUFFER_UNLOCK;
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typedef struct VBOXUHGSMI
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PFNVBOXUHGSMI_BUFFER_CREATE pfnBufferCreate;
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PFNVBOXUHGSMI_BUFFER_SUBMIT_ASYNCH pfnBufferSubmitAsynch;
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/* user custom data */
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} VBOXUHGSMI, *PVBOXUHGSMI;
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typedef struct VBOXUHGSMI_BUFFER
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PFNVBOXUHGSMI_BUFFER_LOCK pfnLock;
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PFNVBOXUHGSMI_BUFFER_UNLOCK pfnUnlock;
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PFNVBOXUHGSMI_BUFFER_DESTROY pfnDestroy;
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/* r/o data added for ease of access and simplicity
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* modifying it leads to unpredictable behavior */
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HVBOXUHGSMI_SYNCHOBJECT hSynch;
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VBOXUHGSMI_SYNCHOBJECT_TYPE enmSynchType;
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/* user custom data */
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} VBOXUHGSMI_BUFFER, *PVBOXUHGSMI_BUFFER;
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#endif /* #ifndef ___VBoxUhgsmi_h__ */