/**
* Resolves a symbol.
*
* @returns Pointer to the symbol on success, NULL on failure.
*
* @param pHandle The IDC handle.
* @param pszName The name of the symbol.
*/
static void supR0IdcGetSymbol(PSUPDRVIDCHANDLE pHandle, PFNRT *ppfn, const char *pszName)
{
SUPDRVIDCREQGETSYM Req;
int rc;
/*
* Create and send a get symbol request.
*/
Req.Hdr.cb = sizeof(Req);
Req.Hdr.rc = VERR_WRONG_ORDER;
Req.Hdr.pSession = pHandle->s.pSession;
Req.u.In.pszSymbol = pszName;
Req.u.In.pszModule = NULL;
rc = supR0IdcNativeCall(pHandle, SUPDRV_IDC_REQ_GET_SYMBOL, &Req.Hdr);
if (RT_SUCCESS(rc))
ASMAtomicWritePtr((void * volatile *)ppfn, Req.u.Out.pfnSymbol);
}
/**
* Deregisters a component factory with SUPDRV.
*
* @returns VBox status code.
* @param pHandle The IDC handle.
* @param pFactory The factory to register.
*/
SUPR0DECL(int) SUPR0IdcComponentDeregisterFactory(PSUPDRVIDCHANDLE pHandle, PCSUPDRVFACTORY pFactory)
{
SUPDRVIDCREQCOMPDEREGFACTORY Req;
/*
* Validate the handle before we access it.
*/
AssertPtrReturn(pHandle, VERR_INVALID_HANDLE);
AssertPtrReturn(pHandle->s.pSession, VERR_INVALID_HANDLE);
/*
* Construct and fire off the request.
*/
Req.Hdr.cb = sizeof(Req);
Req.Hdr.rc = VERR_WRONG_ORDER;
Req.Hdr.pSession = pHandle->s.pSession;
Req.u.In.pFactory = pFactory;
return supR0IdcNativeCall(pHandle, SUPDRV_IDC_REQ_COMPONENT_DEREGISTER_FACTORY, &Req.Hdr);
}
int VBOXCALL supR0IdcNativeClose(PSUPDRVIDCHANDLE pHandle, PSUPDRVIDCREQHDR pReq)
{
return supR0IdcNativeCall(pHandle, SUPDRV_IDC_REQ_DISCONNECT, pReq);
}
int VBOXCALL supR0IdcNativeOpen(PSUPDRVIDCHANDLE pHandle, PSUPDRVIDCREQCONNECT pReq)
{
return supR0IdcNativeCall(pHandle, SUPDRV_IDC_REQ_CONNECT, &pReq->Hdr);
}
