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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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 GECKO_TASK_TRACER_IMPL_H
#define GECKO_TASK_TRACER_IMPL_H
#include "GeckoTaskTracer.h"
#include "mozilla/Mutex.h"
#include "nsTArray.h"
namespace mozilla {
namespace tasktracer {
struct LogRecDispatch {
uint32_t mType;
uint32_t mSourceEventType;
uint64_t mTaskId;
uint64_t mTime;
uint64_t mSourceEventId;
uint64_t mParentTaskId;
};
struct LogRecBegin {
uint32_t mType;
uint64_t mTaskId;
uint64_t mTime;
uint32_t mPid;
uint32_t mTid;
};
struct LogRecEnd {
uint32_t mType;
uint64_t mTaskId;
uint64_t mTime;
};
struct LogRecVPtr {
uint32_t mType;
uint64_t mTaskId;
uintptr_t mVPtr;
};
struct LogRecLabel {
uint32_t mType;
uint32_t mStrIdx;
uint64_t mTaskId;
uint64_t mTime;
};
union TraceInfoLogType {
uint32_t mType;
LogRecDispatch mDispatch;
LogRecBegin mBegin;
LogRecEnd mEnd;
LogRecVPtr mVPtr;
LogRecLabel mLabel;
};
struct TraceInfoLogNode {
TraceInfoLogType mLog;
TraceInfoLogNode* mNext;
};
struct TraceInfo {
explicit TraceInfo(uint32_t aThreadId)
: mCurTraceSourceId(0),
mCurTaskId(0),
mCurTraceSourceType(Unknown),
mThreadId(aThreadId),
mLastUniqueTaskId(0),
mObsolete(false),
mLogsMutex("TraceInfoMutex"),
mLogsHead(nullptr),
mLogsTail(nullptr),
mLogsSize(0) {
MOZ_COUNT_CTOR(TraceInfo);
}
~TraceInfo() {
MOZ_COUNT_DTOR(TraceInfo);
while (mLogsHead) {
auto node = mLogsHead;
mLogsHead = node->mNext;
delete node;
}
}
TraceInfoLogType* AppendLog();
uint64_t mCurTraceSourceId;
uint64_t mCurTaskId;
SourceEventType mCurTraceSourceType;
uint32_t mThreadId;
uint32_t mLastUniqueTaskId;
mozilla::Atomic<bool> mObsolete;
// This mutex protects the following log
mozilla::Mutex mLogsMutex;
TraceInfoLogNode* mLogsHead;
TraceInfoLogNode* mLogsTail;
int mLogsSize;
nsTArray<nsCString> mStrs;
};
class TraceInfoHolder {
public:
TraceInfoHolder() : mInfo(nullptr) {}
explicit TraceInfoHolder(TraceInfo* aInfo) : mInfo(aInfo) {
aInfo->mLogsMutex.AssertNotCurrentThreadOwns(); // in case of recursive
aInfo->mLogsMutex.Lock();
MOZ_ASSERT(aInfo);
}
TraceInfoHolder(const TraceInfoHolder& aOther) = delete;
TraceInfoHolder(TraceInfoHolder&& aOther) : mInfo(aOther.mInfo) {
if (!!aOther) {
aOther->mLogsMutex.AssertCurrentThreadOwns();
}
aOther.mInfo = nullptr;
}
~TraceInfoHolder() {
if (mInfo) mInfo->mLogsMutex.Unlock();
}
explicit operator bool() const { return !!mInfo; }
TraceInfo* operator->() { return mInfo; }
bool operator==(TraceInfo* aOther) const { return mInfo == aOther; }
bool operator==(const TraceInfoHolder& aOther) const {
return mInfo == aOther.mInfo;
}
void Reset() {
if (mInfo) {
mInfo->mLogsMutex.Unlock();
mInfo = nullptr;
}
}
private:
TraceInfo* mInfo;
};
// Return the TraceInfo of current thread, allocate a new one if not exit.
TraceInfoHolder GetOrCreateTraceInfo();
uint64_t GenNewUniqueTaskId();
void SetCurTraceInfo(uint64_t aSourceEventId, uint64_t aParentTaskId,
SourceEventType aSourceEventType);
/**
* Logging functions of different trace actions.
*/
enum ActionType {
ACTION_DISPATCH = 0,
ACTION_BEGIN,
ACTION_END,
ACTION_ADD_LABEL,
ACTION_GET_VTABLE
};
void LogDispatch(uint64_t aTaskId, uint64_t aParentTaskId,
uint64_t aSourceEventId, SourceEventType aSourceEventType);
void LogDispatch(uint64_t aTaskId, uint64_t aParentTaskId,
uint64_t aSourceEventId, SourceEventType aSourceEventType,
int aDelayTimeMs);
void LogBegin(uint64_t aTaskId, uint64_t aSourceEventId);
void LogEnd(uint64_t aTaskId, uint64_t aSourceEventId);
void LogVirtualTablePtr(uint64_t aTaskId, uint64_t aSourceEventId,
uintptr_t* aVptr);
} // namespace tasktracer
} // namespace mozilla
#endif
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