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45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
// Copyright 2023 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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// This file defines stubs for tracing-related classes which are used by net
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// but are not available in Cronet builds (where tracing is disabled to reduce
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// binary size).
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// Even though these stubs are part of the base::trace_event namespace, they're
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// technically not required by base. So, implement them here to make that
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// explicit.
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#ifndef NET_BASE_TRACE_EVENT_STUB_H_
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#define NET_BASE_TRACE_EVENT_STUB_H_
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#include "base/base_export.h"
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#include "base/memory/weak_ptr.h"
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#include "base/trace_event/trace_event_stub.h"
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namespace base::trace_event {
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class BASE_EXPORT TraceLog {
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public:
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class BASE_EXPORT AsyncEnabledStateObserver {
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public:
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virtual ~AsyncEnabledStateObserver() = default;
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virtual void OnTraceLogEnabled() = 0;
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virtual void OnTraceLogDisabled() = 0;
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};
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static TraceLog* GetInstance() {
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static TraceLog obj;
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return &obj;
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}
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bool IsEnabled() { return false; }
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void AddAsyncEnabledStateObserver(WeakPtr<AsyncEnabledStateObserver>) {}
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void RemoveAsyncEnabledStateObserver(AsyncEnabledStateObserver*) {}
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};
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} // namespace base::trace_event
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#endif // NET_BASE_TRACE_EVENT_STUB_H_
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