VMMR3DECL(int) PDMR3NsDetach(PVM pVM, PPDMDRVINS pDrvIns, PPDMNSFILTER pFilter)
{
VM_ASSERT_EMT(pVM);
AssertPtrReturn(pFilter, VERR_INVALID_POINTER);
AssertPtrReturn(pFilter->pBwGroupR3, VERR_INVALID_POINTER);
PUVM pUVM = pVM->pUVM;
PPDMNETSHAPER pShaper = pUVM->pdm.s.pNetShaper;
int rc = RTCritSectEnter(&pShaper->cs); AssertRC(rc);
if (RT_SUCCESS(rc))
{
pdmNsFilterUnlink(pFilter);
PPDMNSBWGROUP pBwGroup = NULL;
pBwGroup = ASMAtomicXchgPtrT(&pFilter->pBwGroupR3, NULL, PPDMNSBWGROUP);
if (pBwGroup)
pdmNsBwGroupUnref(pBwGroup);
int rc2 = RTCritSectLeave(&pShaper->cs); AssertRC(rc2);
}
return rc;
}
/**
* Detach network filter driver from bandwidth group.
*
* @returns VBox status code.
* @param pUVM The user mode VM handle.
* @param pDrvIns The driver instance.
* @param pFilter Pointer to the filter we detach.
*/
VMMR3_INT_DECL(int) PDMR3NsDetach(PUVM pUVM, PPDMDRVINS pDrvIns, PPDMNSFILTER pFilter)
{
RT_NOREF_PV(pDrvIns);
VM_ASSERT_EMT(pUVM->pVM);
AssertPtrReturn(pFilter, VERR_INVALID_POINTER);
/* Now, return quietly if the filter isn't attached since driver/device
destructors are called on constructor failure. */
if (!pFilter->pBwGroupR3)
return VINF_SUCCESS;
AssertPtrReturn(pFilter->pBwGroupR3, VERR_INVALID_POINTER);
PPDMNETSHAPER pShaper = pUVM->pdm.s.pNetShaper;
LOCK_NETSHAPER_RETURN(pShaper);
pdmNsFilterUnlink(pFilter);
PPDMNSBWGROUP pBwGroup = ASMAtomicXchgPtrT(&pFilter->pBwGroupR3, NULL, PPDMNSBWGROUP);
if (pBwGroup)
pdmNsBwGroupUnref(pBwGroup);
UNLOCK_NETSHAPER(pShaper);
return VINF_SUCCESS;
}