hdr_histogram* histogram;

CHECK_EQ(0, hdr_init(lowest, highest, figures, &histogram));

histogram_.reset(histogram);

Environment* env,

v8::Local<v8::Object> wrap,

int64_t lowest,

int64_t highest,

int figures)

: BaseObject(env, wrap),

Histogram(lowest, highest, figures) {

MakeWeak();

HistogramBase* histogram;

ASSIGN_OR_RETURN_UNWRAP(&histogram, args.Holder());

double value = static_cast<double>(histogram->Min());

args.GetReturnValue().Set(value);

HistogramBase* histogram;

ASSIGN_OR_RETURN_UNWRAP(&histogram, args.Holder());

double value = static_cast<double>(histogram->Max());

args.GetReturnValue().Set(value);

HistogramBase* histogram;

ASSIGN_OR_RETURN_UNWRAP(&histogram, args.Holder());

args.GetReturnValue().Set(histogram->Mean());

HistogramBase* histogram;

ASSIGN_OR_RETURN_UNWRAP(&histogram, args.Holder());

double value = static_cast<double>(histogram->Exceeds());

args.GetReturnValue().Set(value);

HistogramBase* histogram;

ASSIGN_OR_RETURN_UNWRAP(&histogram, args.Holder());

args.GetReturnValue().Set(histogram->Stddev());

const FunctionCallbackInfo<Value>& args) {

HistogramBase* histogram;

ASSIGN_OR_RETURN_UNWRAP(&histogram, args.Holder());

CHECK(args[0]->IsNumber());

double percentile = args[0].As<Number>()->Value();

args.GetReturnValue().Set(histogram->Percentile(percentile));

const FunctionCallbackInfo<Value>& args) {

Environment* env = Environment::GetCurrent(args);

HistogramBase* histogram;

ASSIGN_OR_RETURN_UNWRAP(&histogram, args.Holder());

CHECK(args[0]->IsMap());

Local<Map> map = args[0].As<Map>();

histogram->Percentiles([map, env](double key, double value) {

map->Set(

env->context(),

Number::New(env->isolate(), key),

Number::New(env->isolate(), value)).IsEmpty();

});

HistogramBase* histogram;

ASSIGN_OR_RETURN_UNWRAP(&histogram, args.Holder());

histogram->ResetState();

Environment* env,

int64_t lowest,

int64_t highest,

int figures) {

CHECK_LE(lowest, highest);

CHECK_GT(figures, 0);

v8::Local<v8::Object> obj;

auto tmpl = env->histogram_instance_template();

if (!tmpl->NewInstance(env->context()).ToLocal(&obj))

return {};

return MakeDetachedBaseObject<HistogramBase>(

env, obj, lowest, highest, figures);

// Guard against multiple initializations

if (!env->histogram_instance_template().IsEmpty())

return;

Local<FunctionTemplate> histogram = FunctionTemplate::New(env->isolate());

Local<String> classname = FIXED_ONE_BYTE_STRING(env->isolate(), "Histogram");

histogram->SetClassName(classname);

Local<ObjectTemplate> histogramt =

histogram->InstanceTemplate();

histogramt->SetInternalFieldCount(1);

env->SetProtoMethod(histogram, "exceeds", HistogramBase::GetExceeds);

env->SetProtoMethod(histogram, "min", HistogramBase::GetMin);

env->SetProtoMethod(histogram, "max", HistogramBase::GetMax);

env->SetProtoMethod(histogram, "mean", HistogramBase::GetMean);

env->SetProtoMethod(histogram, "stddev", HistogramBase::GetStddev);

env->SetProtoMethod(histogram, "percentile", HistogramBase::GetPercentile);

env->SetProtoMethod(histogram, "percentiles", HistogramBase::GetPercentiles);

env->SetProtoMethod(histogram, "reset", HistogramBase::DoReset);

env->set_histogram_instance_template(histogramt);