1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef nsProfiler_h 8 #define nsProfiler_h 9 10 #include "mozilla/Attributes.h" 11 #include "mozilla/Maybe.h" 12 #include "mozilla/MozPromise.h" 13 #include "mozilla/ProfileJSONWriter.h" 14 #include "mozilla/TimeStamp.h" 15 #include "mozilla/Vector.h" 16 #include "nsIObserver.h" 17 #include "nsIProfiler.h" 18 #include "nsITimer.h" 19 #include "nsServiceManagerUtils.h" 20 #include "ProfilerCodeAddressService.h" 21 22 class nsProfiler final : public nsIProfiler, public nsIObserver { 23 public: 24 nsProfiler(); 25 26 NS_DECL_ISUPPORTS 27 NS_DECL_NSIOBSERVER 28 NS_DECL_NSIPROFILER 29 30 nsresult Init(); 31 GetOrCreate()32 static nsProfiler* GetOrCreate() { 33 nsCOMPtr<nsIProfiler> iprofiler = 34 do_GetService("@mozilla.org/tools/profiler;1"); 35 return static_cast<nsProfiler*>(iprofiler.get()); 36 } 37 38 void GatheredOOPProfile(const nsACString& aProfile); 39 40 private: 41 ~nsProfiler(); 42 43 typedef mozilla::MozPromise<nsCString, nsresult, false> GatheringPromise; 44 typedef mozilla::MozPromise<mozilla::SymbolTable, nsresult, true> 45 SymbolTablePromise; 46 47 RefPtr<GatheringPromise> StartGathering(double aSinceTime); 48 void FinishGathering(); 49 void ResetGathering(); 50 static void GatheringTimerCallback(nsITimer* aTimer, void* aClosure); 51 52 RefPtr<SymbolTablePromise> GetSymbolTableMozPromise( 53 const nsACString& aDebugPath, const nsACString& aBreakpadID); 54 55 bool mLockedForPrivateBrowsing; 56 57 struct ExitProfile { 58 nsCString mJSON; 59 uint64_t mBufferPositionAtGatherTime; 60 }; 61 62 // These fields are all related to profile gathering. 63 mozilla::Vector<ExitProfile> mExitProfiles; 64 mozilla::Maybe<mozilla::MozPromiseHolder<GatheringPromise>> mPromiseHolder; 65 nsCOMPtr<nsIThread> mSymbolTableThread; 66 mozilla::Maybe<SpliceableChunkedJSONWriter> mWriter; 67 uint32_t mPendingProfiles; 68 bool mGathering; 69 nsCOMPtr<nsITimer> mGatheringTimer; 70 }; 71 72 #endif // nsProfiler_h 73