/**
* Initializes the USB controller object given another guest object
* (a kind of copy constructor). This object makes a private copy of data
* of the original object passed as an argument.
*/
HRESULT USBDeviceFilters::initCopy(Machine *aParent, USBDeviceFilters *aPeer)
{
LogFlowThisFunc(("aParent=%p, aPeer=%p\n", aParent, aPeer));
ComAssertRet(aParent && aPeer, E_INVALIDARG);
/* Enclose the state transition NotReady->InInit->Ready */
AutoInitSpan autoInitSpan(this);
AssertReturn(autoInitSpan.isOk(), E_FAIL);
m = new Data(aParent);
/* mPeer is left null */
AutoWriteLock thatlock(aPeer COMMA_LOCKVAL_SRC_POS);
#ifdef VBOX_WITH_USB
/* create private copies of all filters */
m->llDeviceFilters.allocate();
DeviceFilterList::const_iterator it = aPeer->m->llDeviceFilters->begin();
while (it != aPeer->m->llDeviceFilters->end())
{
ComObjPtr<USBDeviceFilter> pFilter;
pFilter.createObject();
pFilter->initCopy(this, *it);
m->llDeviceFilters->push_back(pFilter);
++it;
}
#endif /* VBOX_WITH_USB */
/* Confirm a successful initialization */
autoInitSpan.setSucceeded();
return S_OK;
}
/**
* @note Locks this object for writing, together with the peer object
* represented by @a aThat (locked for reading).
*/
void USBController::copyFrom (USBController *aThat)
{
AssertReturnVoid (aThat != NULL);
/* sanity */
AutoCaller autoCaller(this);
AssertComRCReturnVoid (autoCaller.rc());
/* sanity too */
AutoCaller thatCaller (aThat);
AssertComRCReturnVoid (thatCaller.rc());
/* even more sanity */
AutoAnyStateDependency adep(m->pParent);
AssertComRCReturnVoid (adep.rc());
/* Machine::copyFrom() may not be called when the VM is running */
AssertReturnVoid (!Global::IsOnline (adep.machineState()));
/* peer is not modified, lock it for reading (aThat is "master" so locked
* first) */
AutoReadLock rl(aThat COMMA_LOCKVAL_SRC_POS);
AutoWriteLock wl(this COMMA_LOCKVAL_SRC_POS);
/* this will back up current data */
m->bd.assignCopy(aThat->m->bd);
#ifdef VBOX_WITH_USB
/* Note that we won't inform the USB proxy about new filters since the VM is
* not running when we are here and therefore no need to do so */
/* create private copies of all filters */
m->llDeviceFilters.backup();
m->llDeviceFilters->clear();
for (DeviceFilterList::const_iterator it = aThat->m->llDeviceFilters->begin();
it != aThat->m->llDeviceFilters->end();
++ it)
{
ComObjPtr<USBDeviceFilter> filter;
filter.createObject();
filter->initCopy (this, *it);
m->llDeviceFilters->push_back (filter);
}
#endif /* VBOX_WITH_USB */
}
