C++ SpliceableJSONWriter::End方法代码示例

void ThreadProfile::StreamJSON(SpliceableJSONWriter& aWriter, float aSinceTime)
{
  // mUniqueStacks may already be emplaced from FlushSamplesAndMarkers.
  if (!mUniqueStacks.isSome()) {
    mUniqueStacks.emplace(mPseudoStack->mRuntime);
  }

  aWriter.Start(SpliceableJSONWriter::SingleLineStyle);
  {
    StreamSamplesAndMarkers(aWriter, aSinceTime, *mUniqueStacks);

    aWriter.StartObjectProperty("stackTable");
    {
      {
        JSONSchemaWriter schema(aWriter);
        schema.WriteField("prefix");
        schema.WriteField("frame");
      }

      aWriter.StartArrayProperty("data");
      {
        mUniqueStacks->SpliceStackTableElements(aWriter);
      }
      aWriter.EndArray();
    }
    aWriter.EndObject();

    aWriter.StartObjectProperty("frameTable");
    {
      {
        JSONSchemaWriter schema(aWriter);
        schema.WriteField("location");
        schema.WriteField("implementation");
        schema.WriteField("optimizations");
        schema.WriteField("line");
        schema.WriteField("category");
      }

      aWriter.StartArrayProperty("data");
      {
        mUniqueStacks->SpliceFrameTableElements(aWriter);
      }
      aWriter.EndArray();
    }
    aWriter.EndObject();

    aWriter.StartArrayProperty("stringTable");
    {
      mUniqueStacks->mUniqueStrings.SpliceStringTableElements(aWriter);
    }
    aWriter.EndArray();
  }
  aWriter.End();

  mUniqueStacks.reset();
}

static
void BuildJavaThreadJSObject(SpliceableJSONWriter& aWriter)
{
  aWriter.Start(SpliceableJSONWriter::SingleLineStyle);
  aWriter.StringProperty("name", "Java Main Thread");

  aWriter.StartArrayProperty("samples");

    // for each sample
    for (int sampleId = 0; true; sampleId++) {
      bool firstRun = true;
      // for each frame
      for (int frameId = 0; true; frameId++) {
        nsCString result;
        bool hasFrame = AndroidBridge::Bridge()->GetFrameNameJavaProfiling(0, sampleId, frameId, result);
        // when we run out of frames, we stop looping
        if (!hasFrame) {
          // if we found at least one frame, we have objects to close
          if (!firstRun) {
              aWriter.EndArray();
            aWriter.EndObject();
          }
          break;
        }
        // the first time around, open the sample object and frames array
        if (firstRun) {
          firstRun = false;

          double sampleTime =
            mozilla::widget::GeckoJavaSampler::GetSampleTimeJavaProfiling(0, sampleId);

          aWriter.StartObjectElement();
            aWriter.DoubleProperty("time", sampleTime);

            aWriter.StartArrayProperty("frames");
        }
        // add a frame to the sample
        aWriter.StartObjectElement();
          aWriter.StringProperty("location", result.BeginReading());
        aWriter.EndObject();
      }
      // if we found no frames for this sample, we are done
      if (firstRun) {
        break;
      }
    }

  aWriter.EndArray();
  aWriter.End();
}

void GeckoSampler::StreamJSON(SpliceableJSONWriter& aWriter, double aSinceTime)
{
  aWriter.Start(SpliceableJSONWriter::SingleLineStyle);
  {
    // Put shared library info
    aWriter.StringProperty("libs", GetSharedLibraryInfoStringInternal().c_str());

    // Put meta data
    aWriter.StartObjectProperty("meta");
      StreamMetaJSCustomObject(aWriter);
    aWriter.EndObject();

    // Data of TaskTracer doesn't belong in the circular buffer.
    if (TaskTracer()) {
      aWriter.StartObjectProperty("tasktracer");
      StreamTaskTracer(aWriter);
    }

    // Lists the samples for each ThreadProfile
    aWriter.StartArrayProperty("threads");
    {
      SetPaused(true);

      {
        ::MutexAutoLock lock(*sRegisteredThreadsMutex);

        for (size_t i = 0; i < sRegisteredThreads->size(); i++) {
          // Thread not being profiled, skip it
          if (!sRegisteredThreads->at(i)->Profile())
            continue;

          // Note that we intentionally include ThreadProfile which
          // have been marked for pending delete.

          ::MutexAutoLock lock(sRegisteredThreads->at(i)->Profile()->GetMutex());

          sRegisteredThreads->at(i)->Profile()->StreamJSON(aWriter, aSinceTime);
        }
      }

#ifndef SPS_STANDALONE
      if (Sampler::CanNotifyObservers()) {
        // Send a event asking any subprocesses (plugins) to
        // give us their information
        SubprocessClosure closure(&aWriter);
        nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
        if (os) {
          RefPtr<ProfileSaveEvent> pse = new ProfileSaveEvent(SubProcessCallback, &closure);
          os->NotifyObservers(pse, "profiler-subprocess", nullptr);
        }
      }

  #if defined(SPS_OS_android) && !defined(MOZ_WIDGET_GONK)
      if (ProfileJava()) {
        mozilla::widget::GeckoJavaSampler::PauseJavaProfiling();

        aWriter.Start();
        {
          BuildJavaThreadJSObject(aWriter);
        }
        aWriter.End();

        mozilla::widget::GeckoJavaSampler::UnpauseJavaProfiling();
      }
  #endif
#endif

      SetPaused(false);
    }
    aWriter.EndArray();
  }
  aWriter.End();
}