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84 lines
3.2 KiB
C++
84 lines
3.2 KiB
C++
// Copyright 2012 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_
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#define NET_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_
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#include <memory>
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#include <unordered_set>
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#include "base/compiler_specific.h"
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#include "base/files/scoped_file.h"
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#include "base/memory/scoped_refptr.h"
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#include "base/types/pass_key.h"
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#include "net/base/net_export.h"
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#include "net/base/network_change_notifier.h"
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namespace base {
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class SequencedTaskRunner;
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struct OnTaskRunnerDeleter;
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} // namespace base
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namespace net {
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class NET_EXPORT_PRIVATE NetworkChangeNotifierLinux
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: public NetworkChangeNotifier {
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public:
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// Creates the object mostly like normal, but the AddressTrackerLinux will use
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// |netlink_fd| instead of creating and binding its own netlink socket.
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static std::unique_ptr<NetworkChangeNotifierLinux> CreateWithSocketForTesting(
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const std::unordered_set<std::string>& ignored_interfaces,
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base::ScopedFD netlink_fd);
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// Creates NetworkChangeNotifierLinux with a list of ignored interfaces.
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// |ignored_interfaces| is the list of interfaces to ignore. An ignored
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// interface will not trigger IP address or connection type notifications.
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// NOTE: Only ignore interfaces not used to connect to the internet. Adding
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// interfaces used to connect to the internet can cause critical network
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// changed signals to be lost allowing incorrect stale state to persist.
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explicit NetworkChangeNotifierLinux(
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const std::unordered_set<std::string>& ignored_interfaces);
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// This constructor can leave the BlockingThreadObjects uninitialized. This
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// is useful in tests that want to mock the netlink dependency of
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// AddressTrackerLinux. The PassKey makes this essentially a private
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// constructor.
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NetworkChangeNotifierLinux(
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const std::unordered_set<std::string>& ignored_interfaces,
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bool initialize_blocking_thread_objects,
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base::PassKey<NetworkChangeNotifierLinux>);
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NetworkChangeNotifierLinux(const NetworkChangeNotifierLinux&) = delete;
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NetworkChangeNotifierLinux& operator=(const NetworkChangeNotifierLinux&) =
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delete;
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~NetworkChangeNotifierLinux() override;
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static NetworkChangeCalculatorParams NetworkChangeCalculatorParamsLinux();
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private:
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class BlockingThreadObjects;
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// Initializes BlockingThreadObjects, but AddressTrackerLinux will listen to
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// |netlink_fd| rather than the kernel.
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void InitBlockingThreadObjectsForTesting(base::ScopedFD netlink_fd);
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// NetworkChangeNotifier:
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ConnectionType GetCurrentConnectionType() const override;
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AddressMapOwnerLinux* GetAddressMapOwnerInternal() override;
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// |blocking_thread_objects_| will live on this runner.
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scoped_refptr<base::SequencedTaskRunner> blocking_thread_runner_;
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// A collection of objects that must live on blocking sequences. These objects
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// listen for notifications and relay the notifications to the registered
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// observers without posting back to the thread the object was created on.
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std::unique_ptr<BlockingThreadObjects, base::OnTaskRunnerDeleter>
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blocking_thread_objects_;
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};
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} // namespace net
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#endif // NET_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_
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