зеркало из https://github.com/mozilla/gecko-dev.git
121 строка
3.6 KiB
C++
121 строка
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 MOZ_THREAD_INFO_H
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#define MOZ_THREAD_INFO_H
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#include "mozilla/UniquePtrExtensions.h"
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#include "ProfileBuffer.h"
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#include "platform.h"
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class ThreadInfo {
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public:
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ThreadInfo(const char* aName, int aThreadId, bool aIsMainThread, PseudoStack* aPseudoStack, void* aStackTop);
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virtual ~ThreadInfo();
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const char* Name() const { return mName.get(); }
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int ThreadId() const { return mThreadId; }
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bool IsMainThread() const { return mIsMainThread; }
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PseudoStack* Stack() const { return mPseudoStack; }
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void SetProfile(ProfileBuffer* aBuffer) { mBuffer = aBuffer; }
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PlatformData* GetPlatformData() const { return mPlatformData.get(); }
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void* StackTop() const { return mStackTop; }
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virtual void SetPendingDelete();
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bool IsPendingDelete() const { return mPendingDelete; }
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bool CanInvokeJS() const;
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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private:
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mozilla::UniqueFreePtr<char> mName;
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int mThreadId;
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const bool mIsMainThread;
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PseudoStack* mPseudoStack;
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UniquePlatformData mPlatformData;
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void* mStackTop;
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// May be null for the main thread if the profiler was started during startup.
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nsCOMPtr<nsIThread> mThread;
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bool mPendingDelete;
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//
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// The following code is only used for threads that are being profiled, i.e.
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// for which SetProfile() has been called.
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//
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public:
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bool hasProfile() { return !!mBuffer; }
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void addTag(const ProfileEntry& aTag);
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// Track a marker which has been inserted into the thread profile.
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// This marker can safely be deleted once the generation has
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// expired.
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void addStoredMarker(ProfilerMarker* aStoredMarker);
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mozilla::Mutex& GetMutex();
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void StreamJSON(SpliceableJSONWriter& aWriter, double aSinceTime = 0);
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// Call this method when the JS entries inside the buffer are about to
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// become invalid, i.e., just before JS shutdown.
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void FlushSamplesAndMarkers();
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void BeginUnwind();
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virtual void EndUnwind();
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void DuplicateLastSample();
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ThreadResponsiveness* GetThreadResponsiveness() { return &mRespInfo; }
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void UpdateThreadResponsiveness() {
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mRespInfo.Update(mIsMainThread, mThread);
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}
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uint32_t bufferGeneration() const { return mBuffer->mGeneration; }
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protected:
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void StreamSamplesAndMarkers(SpliceableJSONWriter& aWriter, double aSinceTime,
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UniqueStacks& aUniqueStacks);
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private:
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FRIEND_TEST(ThreadProfile, InsertOneTag);
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FRIEND_TEST(ThreadProfile, InsertOneTagWithTinyBuffer);
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FRIEND_TEST(ThreadProfile, InsertTagsNoWrap);
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FRIEND_TEST(ThreadProfile, InsertTagsWrap);
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FRIEND_TEST(ThreadProfile, MemoryMeasure);
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RefPtr<ProfileBuffer> mBuffer;
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// JS frames in the buffer may require a live JSRuntime to stream (e.g.,
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// stringifying JIT frames). In the case of JSRuntime destruction,
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// FlushSamplesAndMarkers should be called to save them. These are spliced
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// into the final stream.
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mozilla::UniquePtr<char[]> mSavedStreamedSamples;
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mozilla::UniquePtr<char[]> mSavedStreamedMarkers;
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mozilla::Maybe<UniqueStacks> mUniqueStacks;
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mozilla::UniquePtr<mozilla::Mutex> mMutex;
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ThreadResponsiveness mRespInfo;
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#ifdef XP_LINUX
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// Only Linux is using a signal sender, instead of stopping the thread, so we
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// need some space to store the data which cannot be collected in the signal
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// handler code.
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public:
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int64_t mRssMemory;
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int64_t mUssMemory;
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#endif
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};
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#endif
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