1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/tools/profiler/ProfileEntry.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,123 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=8 sts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef MOZ_PROFILE_ENTRY_H
1.11 +#define MOZ_PROFILE_ENTRY_H
1.12 +
1.13 +#include <ostream>
1.14 +#include "GeckoProfiler.h"
1.15 +#include "platform.h"
1.16 +#include "JSStreamWriter.h"
1.17 +#include "ProfilerBacktrace.h"
1.18 +#include "mozilla/Mutex.h"
1.19 +
1.20 +class ThreadProfile;
1.21 +
1.22 +#pragma pack(push, 1)
1.23 +
1.24 +class ProfileEntry
1.25 +{
1.26 +public:
1.27 + ProfileEntry();
1.28 +
1.29 + // aTagData must not need release (i.e. be a string from the text segment)
1.30 + ProfileEntry(char aTagName, const char *aTagData);
1.31 + ProfileEntry(char aTagName, void *aTagPtr);
1.32 + ProfileEntry(char aTagName, ProfilerMarker *aTagMarker);
1.33 + ProfileEntry(char aTagName, float aTagFloat);
1.34 + ProfileEntry(char aTagName, uintptr_t aTagOffset);
1.35 + ProfileEntry(char aTagName, Address aTagAddress);
1.36 + ProfileEntry(char aTagName, int aTagLine);
1.37 + ProfileEntry(char aTagName, char aTagChar);
1.38 + friend std::ostream& operator<<(std::ostream& stream, const ProfileEntry& entry);
1.39 + bool is_ent_hint(char hintChar);
1.40 + bool is_ent_hint();
1.41 + bool is_ent(char tagName);
1.42 + void* get_tagPtr();
1.43 + void log();
1.44 + const ProfilerMarker* getMarker() {
1.45 + MOZ_ASSERT(mTagName == 'm');
1.46 + return mTagMarker;
1.47 + }
1.48 +
1.49 + char getTagName() const { return mTagName; }
1.50 +
1.51 +private:
1.52 + friend class ThreadProfile;
1.53 + union {
1.54 + const char* mTagData;
1.55 + char mTagChars[sizeof(void*)];
1.56 + void* mTagPtr;
1.57 + ProfilerMarker* mTagMarker;
1.58 + float mTagFloat;
1.59 + Address mTagAddress;
1.60 + uintptr_t mTagOffset;
1.61 + int mTagLine;
1.62 + char mTagChar;
1.63 + };
1.64 + char mTagName;
1.65 +};
1.66 +
1.67 +#pragma pack(pop)
1.68 +
1.69 +typedef void (*IterateTagsCallback)(const ProfileEntry& entry, const char* tagStringData);
1.70 +
1.71 +class ThreadProfile
1.72 +{
1.73 +public:
1.74 + ThreadProfile(const char* aName, int aEntrySize, PseudoStack *aStack,
1.75 + Thread::tid_t aThreadId, PlatformData* aPlatformData,
1.76 + bool aIsMainThread, void *aStackTop);
1.77 + virtual ~ThreadProfile();
1.78 + void addTag(ProfileEntry aTag);
1.79 + void flush();
1.80 + void erase();
1.81 + char* processDynamicTag(int readPos, int* tagsConsumed, char* tagBuff);
1.82 + void IterateTags(IterateTagsCallback aCallback);
1.83 + friend std::ostream& operator<<(std::ostream& stream,
1.84 + const ThreadProfile& profile);
1.85 + void ToStreamAsJSON(std::ostream& stream);
1.86 + JSObject *ToJSObject(JSContext *aCx);
1.87 + PseudoStack* GetPseudoStack();
1.88 + mozilla::Mutex* GetMutex();
1.89 + void StreamJSObject(JSStreamWriter& b);
1.90 + void BeginUnwind();
1.91 + virtual void EndUnwind();
1.92 + virtual SyncProfile* AsSyncProfile() { return nullptr; }
1.93 +
1.94 + bool IsMainThread() const { return mIsMainThread; }
1.95 + const char* Name() const { return mName; }
1.96 + Thread::tid_t ThreadId() const { return mThreadId; }
1.97 +
1.98 + PlatformData* GetPlatformData() { return mPlatformData; }
1.99 + int GetGenerationID() const { return mGeneration; }
1.100 + bool HasGenerationExpired(int aGenID) {
1.101 + return aGenID + 2 <= mGeneration;
1.102 + }
1.103 + void* GetStackTop() const { return mStackTop; }
1.104 + void DuplicateLastSample();
1.105 +private:
1.106 + // Circular buffer 'Keep One Slot Open' implementation
1.107 + // for simplicity
1.108 + ProfileEntry* mEntries;
1.109 + int mWritePos; // points to the next entry we will write to
1.110 + int mLastFlushPos; // points to the next entry since the last flush()
1.111 + int mReadPos; // points to the next entry we will read to
1.112 + int mEntrySize;
1.113 + PseudoStack* mPseudoStack;
1.114 + mozilla::Mutex mMutex;
1.115 + char* mName;
1.116 + Thread::tid_t mThreadId;
1.117 + bool mIsMainThread;
1.118 + PlatformData* mPlatformData; // Platform specific data.
1.119 + int mGeneration;
1.120 + int mPendingGenerationFlush;
1.121 + void* const mStackTop;
1.122 +};
1.123 +
1.124 +std::ostream& operator<<(std::ostream& stream, const ThreadProfile& profile);
1.125 +
1.126 +#endif /* ndef MOZ_PROFILE_ENTRY_H */
