зеркало из https://github.com/mozilla/gecko-dev.git
111 строки
3.7 KiB
C++
111 строки
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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 nsProfiler_h
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#define nsProfiler_h
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#include "base/process.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/MozPromise.h"
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#include "mozilla/ProfileJSONWriter.h"
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#include "mozilla/ProportionValue.h"
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#include "mozilla/TimeStamp.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/Vector.h"
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#include "nsIProfiler.h"
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#include "nsITimer.h"
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#include "nsServiceManagerUtils.h"
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#include "ProfilerCodeAddressService.h"
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namespace Json {
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class Value;
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} // namespace Json
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class nsProfiler final : public nsIProfiler {
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public:
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nsProfiler();
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NS_DECL_ISUPPORTS
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NS_DECL_NSIPROFILER
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nsresult Init();
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static nsProfiler* GetOrCreate() {
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nsCOMPtr<nsIProfiler> iprofiler =
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do_GetService("@mozilla.org/tools/profiler;1");
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return static_cast<nsProfiler*>(iprofiler.get());
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}
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private:
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~nsProfiler();
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typedef mozilla::MozPromise<FallibleTArray<uint8_t>, nsresult, true>
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GatheringPromiseAndroid;
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typedef mozilla::MozPromise<nsCString, nsresult, false> GatheringPromise;
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typedef mozilla::MozPromise<mozilla::SymbolTable, nsresult, true>
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SymbolTablePromise;
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RefPtr<GatheringPromise> StartGathering(double aSinceTime);
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void GatheredOOPProfile(base::ProcessId aChildPid,
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const nsACString& aProfile);
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void FinishGathering();
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void ResetGathering(nsresult aPromiseRejectionIfPending);
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static void GatheringTimerCallback(nsITimer* aTimer, void* aClosure);
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void RestartGatheringTimer();
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RefPtr<SymbolTablePromise> GetSymbolTableMozPromise(
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const nsACString& aDebugPath, const nsACString& aBreakpadID);
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struct ExitProfile {
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nsCString mJSON;
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uint64_t mBufferPositionAtGatherTime;
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};
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struct PendingProfile {
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base::ProcessId childPid;
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mozilla::ProportionValue progressProportion;
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nsCString progressLocation;
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mozilla::TimeStamp lastProgressRequest;
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mozilla::TimeStamp lastProgressResponse;
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mozilla::TimeStamp lastProgressChange;
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explicit PendingProfile(base::ProcessId aChildPid) : childPid(aChildPid) {}
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};
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PendingProfile* GetPendingProfile(base::ProcessId aChildPid);
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// Returns false if the request could not be sent.
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bool SendProgressRequest(PendingProfile& aPendingProfile);
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// If the log is active, call aJsonLogObjectUpdater(Json::Value&) on the log's
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// root object.
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template <typename JsonLogObjectUpdater>
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void Log(JsonLogObjectUpdater&& aJsonLogObjectUpdater);
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// If the log is active, call aJsonArrayAppender(Json::Value&) on a Json
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// array that already contains a timestamp, and to which event-related
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// elements may be appended.
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template <typename JsonArrayAppender>
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void LogEvent(JsonArrayAppender&& aJsonArrayAppender);
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void LogEventLiteralString(const char* aEventString);
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// These fields are all related to profile gathering.
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mozilla::Vector<ExitProfile> mExitProfiles;
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mozilla::Maybe<mozilla::MozPromiseHolder<GatheringPromise>> mPromiseHolder;
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nsCOMPtr<nsIThread> mSymbolTableThread;
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mozilla::Maybe<mozilla::FailureLatchSource> mFailureLatchSource;
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mozilla::Maybe<SpliceableChunkedJSONWriter> mWriter;
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mozilla::Vector<PendingProfile> mPendingProfiles;
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bool mGathering;
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nsCOMPtr<nsITimer> mGatheringTimer;
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// Supplemental log to the profiler's "profilingLog" (which has already been
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// completed in JSON profiles that are gathered).
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mozilla::UniquePtr<Json::Value> mGatheringLog;
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};
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#endif // nsProfiler_h
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