mirror of
https://github.com/mozilla/gecko-dev.git
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95eccb68b1
MozReview-Commit-ID: 8SqBWgOXc6H --HG-- extra : rebase_source : 4b5cbb34740ebd439431188dd8c6df02eeee3969
132 lines
3.2 KiB
C++
132 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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 TRACED_TASK_COMMON_H
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#define TRACED_TASK_COMMON_H
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#include "GeckoTaskTracer.h"
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#include "nsCOMPtr.h"
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#include "nsThreadUtils.h"
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namespace mozilla {
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namespace tasktracer {
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class TracedTaskCommon
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{
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public:
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TracedTaskCommon();
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TracedTaskCommon(const TracedTaskCommon& aSrc)
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: mSourceEventType(aSrc.mSourceEventType)
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, mSourceEventId(aSrc.mSourceEventId)
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, mParentTaskId(aSrc.mParentTaskId)
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, mTaskId(aSrc.mTaskId)
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, mIsTraceInfoInit(aSrc.mIsTraceInfoInit) {}
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virtual ~TracedTaskCommon();
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void DispatchTask(int aDelayTimeMs = 0);
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void SetTLSTraceInfo() {
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if (mIsTraceInfoInit) {
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DoSetTLSTraceInfo();
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}
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}
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void GetTLSTraceInfo() {
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if (IsStartLogging()) {
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DoGetTLSTraceInfo();
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}
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}
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void ClearTLSTraceInfo();
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private:
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void DoSetTLSTraceInfo();
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void DoGetTLSTraceInfo();
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protected:
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void Init();
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// TraceInfo of TLS will be set by the following parameters, including source
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// event type, source event ID, parent task ID, and task ID of this traced
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// task/runnable.
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SourceEventType mSourceEventType;
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uint64_t mSourceEventId;
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uint64_t mParentTaskId;
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uint64_t mTaskId;
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bool mIsTraceInfoInit;
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};
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class TracedRunnable : public TracedTaskCommon
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, public nsIRunnable
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{
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public:
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIRUNNABLE
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explicit TracedRunnable(already_AddRefed<nsIRunnable>&& aOriginalObj);
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private:
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virtual ~TracedRunnable();
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nsCOMPtr<nsIRunnable> mOriginalObj;
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};
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/**
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* This class is used to create a logical task, without a real
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* runnable.
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*/
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class VirtualTask : public TracedTaskCommon {
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public:
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VirtualTask() : TracedTaskCommon() {}
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VirtualTask(const VirtualTask& aSrc) : TracedTaskCommon(aSrc) {}
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/**
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* Initialize the task to create an unique ID, and store other
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* information.
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*
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* This method may be called for one or more times.
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*/
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void Init(uintptr_t* aVPtr = nullptr) {
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TracedTaskCommon::Init();
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if (aVPtr) {
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extern void LogVirtualTablePtr(uint64_t aTaskId, uint64_t aSourceEventId, uintptr_t* aVptr);
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LogVirtualTablePtr(mTaskId, mSourceEventId, aVPtr);
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}
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DispatchTask();
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}
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/**
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* Define the life-span of a VirtualTask.
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*
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* VirtualTask is not a real task, goes without a runnable, it's
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* instances are never dispatched and ran by event loops. This
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* class used to define running time as the life-span of it's
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* instance.
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*/
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class AutoRunTask : public AutoSaveCurTraceInfo {
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VirtualTask* mTask;
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void StartScope(VirtualTask *aTask);
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void StopScope();
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public:
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explicit AutoRunTask(VirtualTask *aTask)
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: AutoSaveCurTraceInfo()
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, mTask(aTask) {
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if (HasSavedTraceInfo()) {
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StartScope(aTask);
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}
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}
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~AutoRunTask() {
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if (HasSavedTraceInfo()) {
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StopScope();
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}
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}
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};
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};
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} // namespace tasktracer
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} // namespace mozilla
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#endif
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