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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_P2P_IPC_NETWORK_MANAGER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_P2P_IPC_NETWORK_MANAGER_H_
#include <memory>
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_checker.h"
#include "third_party/blink/renderer/platform/heap/cross_thread_persistent.h"
#include "third_party/blink/renderer/platform/p2p/network_list_manager.h"
#include "third_party/blink/renderer/platform/p2p/network_list_observer.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/webrtc/rtc_base/mdns_responder_interface.h"
#include "third_party/webrtc/rtc_base/network.h"
namespace net {
class IPAddress;
} // namespace net
namespace blink {
// IpcNetworkManager is a NetworkManager for libjingle that gets a
// list of network interfaces from the browser.
//
// Threading note:
// The IpcNetworkManager is constructed on the network thread, and after that
// may only be accessed from the signaling thread. The one exception to that is
// access to slots (e.g., `NetworkManager::SignalNetworksChanged`) that are safe
// to access from any thread.
class IpcNetworkManager : public webrtc::NetworkManagerBase,
public blink::NetworkListObserver {
public:
// Constructor doesn't take ownership of the |network_list_manager|.
PLATFORM_EXPORT IpcNetworkManager(
blink::NetworkListManager* network_list_manager,
std::unique_ptr<webrtc::MdnsResponderInterface> mdns_responder);
~IpcNetworkManager() override;
void PLATFORM_EXPORT ContextDestroyed();
// Weak pointers may only be dereferenced on the signaling thread.
base::WeakPtr<IpcNetworkManager> PLATFORM_EXPORT
AsWeakPtrForSignalingThread();
// webrtc:::NetworkManager:
void StartUpdating() override;
void StopUpdating() override;
webrtc::MdnsResponderInterface* GetMdnsResponder() const override;
// blink::NetworkListObserver interface.
void OnNetworkListChanged(
const net::NetworkInterfaceList& list,
const net::IPAddress& default_ipv4_local_address,
const net::IPAddress& default_ipv6_local_address) override;
private:
void SendNetworksChangedSignal();
// 'this' is created on the network thread, whereas the `NetworkListManager`
// is owned by the main thread, so it needs to be accessed in a thread-safe
// manner. The `NetworkListManager` will be reset once the context is
// destroyed, so the strong reference will not cause a leak.
CrossThreadPersistent<NetworkListManager> network_list_manager_;
std::unique_ptr<webrtc::MdnsResponderInterface> mdns_responder_;
int start_count_ = 0;
bool network_list_received_ = false;
THREAD_CHECKER(thread_checker_);
base::WeakPtrFactory<IpcNetworkManager> weak_factory_{this};
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_P2P_IPC_NETWORK_MANAGER_H_
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