Emilio Cobos Álvarez
2223a8bee2
Automatically generated with:
cp dom/.clang-format xpcom/ && mach format xpcom/**.{cpp,h}
Manual changes:
* nsTDependentSubstring.cpp was relying on include order, prevent that
from being changed by clang-format.
* Missing nsAtom.h include from nsGkAtoms.h
* nsWindowsHelpers.h needed to keep the include order
* MemoryPressureLevelMac.h needed mozilla/Attributes.h
Differential Revision: https://phabricator.services.mozilla.com/D311687
80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_MemoryTelemetry_h
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#define mozilla_MemoryTelemetry_h
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#include <functional>
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#include "mozilla/Maybe.h"
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#include "mozilla/Result.h"
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#include "mozilla/TimeStamp.h"
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#include "nsITimer.h"
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#include "nsTArray.h"
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class nsIEventTarget;
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class TimeStampWindow;
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namespace mozilla {
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namespace ipc {
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enum class ResponseRejectReason;
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}
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/**
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* Periodically gathers memory usage metrics after cycle collection, and
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* populates telemetry histograms with their values.
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*/
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class MemoryTelemetry final {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MemoryTelemetry)
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static RefPtr<MemoryTelemetry> Create();
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// May return null if instance hasn't been created or was destroyed.
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static RefPtr<MemoryTelemetry> Get();
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nsresult GatherReports(
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const std::function<void()>& aCompletionCallback = nullptr);
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/**
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* Called to signal that we can begin collecting telemetry.
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*/
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void DelayedInit();
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/**
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* Notify that the browser is active and telemetry should be recorded soon.
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*/
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void Poke();
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nsresult Shutdown();
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private:
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MemoryTelemetry();
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~MemoryTelemetry();
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static Result<uint32_t, nsresult> GetOpenTabsCount();
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void GatherTotalMemory();
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nsresult FinishGatheringTotalMemory(Maybe<int64_t> aTotalMemory,
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const nsTArray<int64_t>& aChildSizes);
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nsCOMPtr<nsIEventTarget> mThreadPool;
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bool mGatheringTotalMemory = false;
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TimeStamp mLastRun{};
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TimeStamp mLastPoke{};
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UniquePtr<TimeStampWindow> mPokeWindow;
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nsCOMPtr<nsITimer> mTimer;
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// True if startup is finished and it's okay to start gathering telemetry.
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bool mCanRun = false;
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};
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} // namespace mozilla
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#endif // defined mozilla_MemoryTelemetry_h
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