mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-28 23:31:56 +00:00
75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef mozilla_MemoryTelemetry_h
|
|
#define mozilla_MemoryTelemetry_h
|
|
|
|
#include "mozilla/TimeStamp.h"
|
|
#include "mozilla/Result.h"
|
|
#include "nsIObserver.h"
|
|
#include "nsITimer.h"
|
|
#include "nsTArray.h"
|
|
#include "nsWeakReference.h"
|
|
|
|
#include <functional>
|
|
|
|
class nsIEventTarget;
|
|
|
|
namespace mozilla {
|
|
|
|
namespace ipc {
|
|
enum class ResponseRejectReason;
|
|
}
|
|
|
|
/**
|
|
* Periodically gathers memory usage metrics after cycle collection, and
|
|
* populates telemetry histograms with their values.
|
|
*/
|
|
class MemoryTelemetry final : public nsIObserver,
|
|
public nsSupportsWeakReference {
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIOBSERVER
|
|
|
|
static MemoryTelemetry& Get();
|
|
|
|
nsresult GatherReports(
|
|
const std::function<void()>& aCompletionCallback = nullptr);
|
|
|
|
void GetUniqueSetSize(std::function<void(const int64_t&)>&& aCallback);
|
|
|
|
/**
|
|
* Does expensive initialization, which should happen only after startup has
|
|
* completed, and the event loop is idle.
|
|
*/
|
|
nsresult DelayedInit();
|
|
|
|
nsresult Shutdown();
|
|
|
|
private:
|
|
MemoryTelemetry();
|
|
|
|
~MemoryTelemetry() = default;
|
|
|
|
void Init();
|
|
|
|
static Result<uint32_t, nsresult> GetOpenTabsCount();
|
|
|
|
void GatherTotalMemory();
|
|
nsresult FinishGatheringTotalMemory(int64_t aTotalMemory,
|
|
const nsTArray<int64_t>& aChildSizes);
|
|
|
|
nsCOMPtr<nsIEventTarget> mThreadPool;
|
|
|
|
bool mGatheringTotalMemory = false;
|
|
|
|
TimeStamp mLastPoll{};
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // defined mozilla_MemoryTelemetry_h
|