yiding

class PortAllocatorFactoryWrapper : public PortAllocatorFactory {
public:
  PortAllocatorFactoryWrapper(talk_base::Thread* worker_thread, int minPort, int maxPort)
    : PortAllocatorFactory(worker_thread), minPort_(minPort), maxPort_(maxPort) {}

  virtual cricket::PortAllocator *CreatePortAllocator(
      const std::vector<StunConfiguration> &stun,
      const std::vector<TurnConfiguration> &turn) override {
    auto allocator = PortAllocatorFactory::CreatePortAllocator(stun, turn);
    allocator->SetPortRange(minPort_, maxPort_);