C++ (Cpp) SampleSet示例

示例#1

文件： Telemetry.cpp 项目： vingtetun/mozilla-central

JSBool
ReflectHistogramSnapshot(JSContext *cx, JSObject *obj, Histogram *h)
{
  Histogram::SampleSet ss;
  h->SnapshotSample(&ss);
  JSObject *counts_array;
  JSObject *rarray;
  jsval static_histogram = h->flags() && Histogram::kUmaTargetedHistogramFlag ? JSVAL_TRUE : JSVAL_FALSE;
  const size_t count = h->bucket_count();
  if (!(JS_DefineProperty(cx, obj, "min", INT_TO_JSVAL(h->declared_min()), NULL, NULL, JSPROP_ENUMERATE)
        && JS_DefineProperty(cx, obj, "max", INT_TO_JSVAL(h->declared_max()), NULL, NULL, JSPROP_ENUMERATE)
        && JS_DefineProperty(cx, obj, "histogram_type", INT_TO_JSVAL(h->histogram_type()), NULL, NULL, JSPROP_ENUMERATE)
        && JS_DefineProperty(cx, obj, "sum", DOUBLE_TO_JSVAL(ss.sum()), NULL, NULL, JSPROP_ENUMERATE)
        && (rarray = JS_NewArrayObject(cx, count, NULL))
        && JS_DefineProperty(cx, obj, "ranges", OBJECT_TO_JSVAL(rarray), NULL, NULL, JSPROP_ENUMERATE)
        && FillRanges(cx, rarray, h)
        && (counts_array = JS_NewArrayObject(cx, count, NULL))
        && JS_DefineProperty(cx, obj, "counts", OBJECT_TO_JSVAL(counts_array), NULL, NULL, JSPROP_ENUMERATE)
        && JS_DefineProperty(cx, obj, "static", static_histogram, NULL, NULL, JSPROP_ENUMERATE)
        )) {
    return JS_FALSE;
  }
  for (size_t i = 0; i < count; i++) {
    if (!JS_DefineElement(cx, counts_array, i, INT_TO_JSVAL(ss.counts(i)), NULL, NULL, JSPROP_ENUMERATE)) {
      return JS_FALSE;
    }
  }
  return JS_TRUE;
}

示例#2

enum reflectStatus
ReflectHistogramSnapshot(JSContext *cx, JSObject *obj, Histogram *h)
{
  Histogram::SampleSet ss;
  h->SnapshotSample(&ss);

  // We don't want to reflect corrupt histograms.
  if (h->FindCorruption(ss) != Histogram::NO_INCONSISTENCIES) {
    return REFLECT_CORRUPT;
  }

  JSObject *counts_array;
  JSObject *rarray;
  const size_t count = h->bucket_count();
  if (!(JS_DefineProperty(cx, obj, "min", INT_TO_JSVAL(h->declared_min()), NULL, NULL, JSPROP_ENUMERATE)
        && JS_DefineProperty(cx, obj, "max", INT_TO_JSVAL(h->declared_max()), NULL, NULL, JSPROP_ENUMERATE)
        && JS_DefineProperty(cx, obj, "histogram_type", INT_TO_JSVAL(h->histogram_type()), NULL, NULL, JSPROP_ENUMERATE)
        && JS_DefineProperty(cx, obj, "sum", DOUBLE_TO_JSVAL(ss.sum()), NULL, NULL, JSPROP_ENUMERATE)
        && (rarray = JS_NewArrayObject(cx, count, NULL))
        && JS_DefineProperty(cx, obj, "ranges", OBJECT_TO_JSVAL(rarray), NULL, NULL, JSPROP_ENUMERATE)
        && FillRanges(cx, rarray, h)
        && (counts_array = JS_NewArrayObject(cx, count, NULL))
        && JS_DefineProperty(cx, obj, "counts", OBJECT_TO_JSVAL(counts_array), NULL, NULL, JSPROP_ENUMERATE)
        )) {
    return REFLECT_FAILURE;
  }
  for (size_t i = 0; i < count; i++) {
    if (!JS_DefineElement(cx, counts_array, i, INT_TO_JSVAL(ss.counts(i)), NULL, NULL, JSPROP_ENUMERATE)) {
      return REFLECT_FAILURE;
    }
  }
  return REFLECT_OK;
}

示例#3

文件： Telemetry.cpp 项目： FunkyVerb/devtools-window

bool
IsEmpty(const Histogram *h)
{
  Histogram::SampleSet ss;
  h->SnapshotSample(&ss);

  return ss.counts(0) == 0 && ss.sum() == 0;
}