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62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
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// Copyright 2017 The Chromium Authors. All rights reserved.
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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_NQE_EVENT_CREATOR_H_
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#define NET_NQE_EVENT_CREATOR_H_
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#include <stdint.h>
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#include "base/macros.h"
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#include "base/threading/thread_checker.h"
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#include "base/time/time.h"
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#include "net/base/net_export.h"
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#include "net/log/net_log_with_source.h"
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#include "net/nqe/effective_connection_type.h"
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#include "net/nqe/network_quality.h"
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namespace net {
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class NetLogWithSource;
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namespace nqe {
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namespace internal {
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// Class that adds net log events for network quality estimator.
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class NET_EXPORT_PRIVATE EventCreator {
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public:
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explicit EventCreator(NetLogWithSource net_log);
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~EventCreator();
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// May add network quality changed event to the net-internals log if there
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// is a change in the effective connection type, or if there is a meaningful
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// change in the values of HTTP RTT, transport RTT or bandwidth.
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// |effective_connection_type| is the current effective connection type.
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// |network_quality| is the current network quality.
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void MaybeAddNetworkQualityChangedEventToNetLog(
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EffectiveConnectionType effective_connection_type,
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const NetworkQuality& network_quality);
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private:
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NetLogWithSource net_log_;
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// The effective connection type when the net log event was last added.
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EffectiveConnectionType past_effective_connection_type_;
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// The network quality when the net log event was last added.
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NetworkQuality past_network_quality_;
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base::ThreadChecker thread_checker_;
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DISALLOW_COPY_AND_ASSIGN(EventCreator);
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};
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} // namespace internal
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} // namespace nqe
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} // namespace net
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#endif // NET_NQE_EVENT_CREATOR_H_
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