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-rw-r--r--tools/profiler/gecko/nsProfiler.h117
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diff --git a/tools/profiler/gecko/nsProfiler.h b/tools/profiler/gecko/nsProfiler.h
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+/* -*- 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 nsProfiler_h
+#define nsProfiler_h
+
+#include "base/process.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/MozPromise.h"
+#include "mozilla/ProfileJSONWriter.h"
+#include "mozilla/ProportionValue.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Vector.h"
+#include "nsIProfiler.h"
+#include "nsITimer.h"
+#include "nsServiceManagerUtils.h"
+#include "ProfilerCodeAddressService.h"
+#include "ProfileAdditionalInformation.h"
+
+namespace Json {
+class Value;
+} // namespace Json
+
+class nsProfiler final : public nsIProfiler {
+ public:
+ nsProfiler();
+
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIPROFILER
+
+ nsresult Init();
+
+ static nsProfiler* GetOrCreate() {
+ nsCOMPtr<nsIProfiler> iprofiler =
+ do_GetService("@mozilla.org/tools/profiler;1");
+ return static_cast<nsProfiler*>(iprofiler.get());
+ }
+
+ private:
+ ~nsProfiler();
+
+ using GatheringPromiseAndroid =
+ mozilla::MozPromise<FallibleTArray<uint8_t>, nsresult, true>;
+ using GatheringPromise =
+ mozilla::MozPromise<mozilla::ProfileAndAdditionalInformation, nsresult,
+ false>;
+ using SymbolTablePromise =
+ mozilla::MozPromise<mozilla::SymbolTable, nsresult, true>;
+
+ RefPtr<GatheringPromise> StartGathering(double aSinceTime);
+ void GatheredOOPProfile(
+ base::ProcessId aChildPid, const nsACString& aProfile,
+ mozilla::Maybe<mozilla::ProfileGenerationAdditionalInformation>&&
+ aAdditionalInformation);
+ void FinishGathering();
+ void ResetGathering(nsresult aPromiseRejectionIfPending);
+ static void GatheringTimerCallback(nsITimer* aTimer, void* aClosure);
+ void RestartGatheringTimer();
+
+ RefPtr<SymbolTablePromise> GetSymbolTableMozPromise(
+ const nsACString& aDebugPath, const nsACString& aBreakpadID);
+
+ struct ExitProfile {
+ nsCString mJSON;
+ uint64_t mBufferPositionAtGatherTime;
+ };
+
+ struct PendingProfile {
+ base::ProcessId childPid;
+
+ mozilla::ProportionValue progressProportion;
+ nsCString progressLocation;
+
+ mozilla::TimeStamp lastProgressRequest;
+ mozilla::TimeStamp lastProgressResponse;
+ mozilla::TimeStamp lastProgressChange;
+
+ explicit PendingProfile(base::ProcessId aChildPid) : childPid(aChildPid) {}
+ };
+
+ PendingProfile* GetPendingProfile(base::ProcessId aChildPid);
+ // Returns false if the request could not be sent.
+ bool SendProgressRequest(PendingProfile& aPendingProfile);
+
+ // If the log is active, call aJsonLogObjectUpdater(Json::Value&) on the log's
+ // root object.
+ template <typename JsonLogObjectUpdater>
+ void Log(JsonLogObjectUpdater&& aJsonLogObjectUpdater);
+ // If the log is active, call aJsonArrayAppender(Json::Value&) on a Json
+ // array that already contains a timestamp, and to which event-related
+ // elements may be appended.
+ template <typename JsonArrayAppender>
+ void LogEvent(JsonArrayAppender&& aJsonArrayAppender);
+ void LogEventLiteralString(const char* aEventString);
+
+ // These fields are all related to profile gathering.
+ mozilla::Vector<ExitProfile> mExitProfiles;
+ mozilla::Maybe<mozilla::MozPromiseHolder<GatheringPromise>> mPromiseHolder;
+ nsCOMPtr<nsIThread> mSymbolTableThread;
+ mozilla::Maybe<mozilla::FailureLatchSource> mFailureLatchSource;
+ mozilla::Maybe<SpliceableChunkedJSONWriter> mWriter;
+ mozilla::Maybe<mozilla::ProfileGenerationAdditionalInformation>
+ mProfileGenerationAdditionalInformation;
+ mozilla::Vector<PendingProfile> mPendingProfiles;
+ bool mGathering;
+ nsCOMPtr<nsITimer> mGatheringTimer;
+ // Supplemental log to the profiler's "profilingLog" (which has already been
+ // completed in JSON profiles that are gathered).
+ mozilla::UniquePtr<Json::Value> mGatheringLog;
+};
+
+#endif // nsProfiler_h