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/** @file
* VBoxGuestLib - HGCM Inline Helper Functions.
*/
/*
* Copyright (C) 2006-2025 Oracle and/or its affiliates.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef VBOX_INCLUDED_VBoxGuestLibHGCMInline_h
#define VBOX_INCLUDED_VBoxGuestLibHGCMInline_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <VBox/VMMDevCoreTypes.h>
#include <iprt/errcore.h>
DECLINLINE(void) VbglHGCMParmUInt32Set(HGCMFunctionParameter *pParm, uint32_t u32)
{
pParm->type = VMMDevHGCMParmType_32bit;
pParm->u.value64 = 0; /* init unused bits to 0 */
pParm->u.value32 = u32;
}
DECLINLINE(int) VbglHGCMParmUInt32Get(HGCMFunctionParameter *pParm, uint32_t *pu32)
{
if (pParm->type == VMMDevHGCMParmType_32bit)
{
*pu32 = pParm->u.value32;
return VINF_SUCCESS;
}
*pu32 = UINT32_MAX; /* shut up gcc */
return VERR_WRONG_PARAMETER_TYPE;
}
DECLINLINE(void) VbglHGCMParmUInt64Set(HGCMFunctionParameter *pParm, uint64_t u64)
{
pParm->type = VMMDevHGCMParmType_64bit;
pParm->u.value64 = u64;
}
DECLINLINE(int) VbglHGCMParmUInt64Get(HGCMFunctionParameter *pParm, uint64_t *pu64)
{
if (pParm->type == VMMDevHGCMParmType_64bit)
{
*pu64 = pParm->u.value64;
return VINF_SUCCESS;
}
*pu64 = UINT64_MAX; /* shut up gcc */
return VERR_WRONG_PARAMETER_TYPE;
}
DECLINLINE(void) VbglHGCMParmPtrSet(HGCMFunctionParameter *pParm, void *pv, uint32_t cb)
{
pParm->type = VMMDevHGCMParmType_LinAddr;
pParm->u.Pointer.size = cb;
pParm->u.Pointer.u.linearAddr = (uintptr_t)pv;
}
#ifdef VBOX_VBGLR3_XFREE86
/* Rather than try to resolve all the header file conflicts, I will just
prototype what we need here.
Note! Other places needs the typedef, so always define it. */
RT_C_DECLS_BEGIN
typedef unsigned long xf86size_t;
xf86size_t xf86strlen(const char *);
RT_C_DECLS_END
#endif /* VBOX_VBGLR3_XFREE86 */
#ifdef IPRT_INCLUDED_string_h
DECLINLINE(void) VbglHGCMParmPtrSetString(HGCMFunctionParameter *pParm, const char *psz)
{
pParm->type = VMMDevHGCMParmType_LinAddr_In;
# ifdef VBOX_VBGLR3_XFREE86
pParm->u.Pointer.size = (uint32_t)xf86strlen(psz) + 1;
# else
pParm->u.Pointer.size = (uint32_t)strlen(psz) + 1;
# endif
pParm->u.Pointer.u.linearAddr = (uintptr_t)psz;
}
#endif /* IPRT_INCLUDED_string_h */
#endif /* !VBOX_INCLUDED_VBoxGuestLibHGCMInline_h */
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