// Enumerates devices for a particular factory.
Void DeviceManagerImpl::EnumerateFactoryDevices(DeviceFactory* factory)
{
class FactoryEnumerateVisitor : public DeviceFactory::EnumerateVisitor
{
DeviceManagerImpl* pManager;
DeviceFactory* pFactory;
public:
FactoryEnumerateVisitor(DeviceManagerImpl* manager, DeviceFactory* factory)
: pManager(manager), pFactory(factory) { }
virtual void Visit(const DeviceCreateDesc& createDesc)
{
DeviceCreateDesc* devDesc;
// If found, mark as enumerated and we are done.
DeviceCreateDesc* descCandidate = 0;
for(devDesc = pManager->Devices.GetFirst();
!pManager->Devices.IsNull(devDesc); devDesc = devDesc->pNext)
{
DeviceCreateDesc::MatchResult mr = devDesc->MatchDevice(createDesc, &descCandidate);
if (mr == DeviceCreateDesc::Match_Found)
{
devDesc->Enumerated = true;
return;
}
}
// Update candidate (this may involve writing fields to HMDDevice createDesc).
if (descCandidate && descCandidate->UpdateMatchedCandidate(createDesc))
{
descCandidate->Enumerated = true;
return;
}
// If not found, add new device.
// - This stores a new descriptor with
// {pDevice = 0, HandleCount = 1, Enumerated = true}
DeviceCreateDesc* desc = createDesc.Clone();
desc->pLock = pManager->pCreateDesc->pLock;
pManager->Devices.PushBack(desc);
pManager->CallOnDeviceAdded(desc);
}
};
FactoryEnumerateVisitor newDeviceVisitor(this, factory);
factory->EnumerateDevices(newDeviceVisitor);
return 0;
}
// Enumerates devices for a particular factory.
Void DeviceManagerImpl::EnumerateFactoryDevices(DeviceFactory* factory)
{
class FactoryEnumerateVisitor : public DeviceFactory::EnumerateVisitor
{
DeviceManagerImpl* pManager;
public:
FactoryEnumerateVisitor(DeviceManagerImpl* manager)
: pManager(manager) { }
virtual void Visit(const DeviceCreateDesc& createDesc)
{
pManager->AddDevice_NeedsLock(createDesc);
}
};
FactoryEnumerateVisitor newDeviceVisitor(this);
factory->EnumerateDevices(newDeviceVisitor);
return 0;
}