STDMETHODIMP USBController::RemoveDeviceFilter(ULONG aPosition,
IUSBDeviceFilter **aFilter)
{
#ifdef VBOX_WITH_USB
CheckComArgOutPointerValid(aFilter);
AutoCaller autoCaller(this);
if (FAILED(autoCaller.rc())) return autoCaller.rc();
/* the machine needs to be mutable */
AutoMutableStateDependency adep(m->pParent);
if (FAILED(adep.rc())) return adep.rc();
AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
if (!m->llDeviceFilters->size())
return setError(E_INVALIDARG,
tr("The USB device filter list is empty"));
if (aPosition >= m->llDeviceFilters->size())
return setError(E_INVALIDARG,
tr("Invalid position: %lu (must be in range [0, %lu])"),
aPosition, m->llDeviceFilters->size() - 1);
/* backup the list before modification */
m->llDeviceFilters.backup();
ComObjPtr<USBDeviceFilter> filter;
{
/* iterate to the position... */
DeviceFilterList::iterator it = m->llDeviceFilters->begin();
std::advance (it, aPosition);
/* ...get an element from there... */
filter = *it;
/* ...and remove */
filter->mInList = false;
m->llDeviceFilters->erase (it);
}
/* cancel sharing (make an independent copy of data) */
filter->unshare();
filter.queryInterfaceTo(aFilter);
/* notify the proxy (only when it makes sense) */
if (filter->getData().mActive && Global::IsOnline(adep.machineState())
&& filter->getData().mRemote.isMatch (false))
{
USBProxyService *service = m->pHost->usbProxyService();
ComAssertRet(service, E_FAIL);
ComAssertRet(filter->getId() != NULL, E_FAIL);
service->removeFilter(filter->getId());
filter->getId() = NULL;
}
alock.release();
AutoWriteLock mlock(m->pParent COMMA_LOCKVAL_SRC_POS);
m->pParent->setModified(Machine::IsModified_USB);
mlock.release();
return S_OK;
#else /* VBOX_WITH_USB */
NOREF(aPosition);
NOREF(aFilter);
ReturnComNotImplemented();
#endif /* VBOX_WITH_USB */
}
