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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#include "mozilla/glean/bindings/TimingDistribution.h"
#include "Common.h"
#include "mozilla/Components.h"
#include "mozilla/ResultVariant.h"
#include "mozilla/dom/ToJSValue.h"
#include "mozilla/glean/bindings/HistogramGIFFTMap.h"
#include "mozilla/glean/fog_ffi_generated.h"
#include "nsIClassInfoImpl.h"
#include "nsJSUtils.h"
#include "nsPrintfCString.h"
#include "nsString.h"
#include "js/PropertyAndElement.h" // JS_DefineProperty
// Called from within FOG's Rust impl.
extern "C" NS_EXPORT void GIFFT_TimingDistributionStart(
uint32_t aMetricId, mozilla::glean::TimerId aTimerId) {
auto mirrorId = mozilla::glean::HistogramIdForMetric(aMetricId);
if (mirrorId) {
mozilla::glean::GetTimerIdToStartsLock().apply([&](auto& lock) {
auto tuple = mozilla::glean::MetricTimerTuple{aMetricId, aTimerId};
// It should be all but impossible for anyone to have already inserted
// this timer for this metric given the monotonicity of timer ids.
(void)NS_WARN_IF(lock.ref()->Remove(tuple));
lock.ref()->InsertOrUpdate(tuple, mozilla::TimeStamp::Now());
});
}
}
// Called from within FOG's Rust impl.
extern "C" NS_EXPORT void GIFFT_TimingDistributionStopAndAccumulate(
uint32_t aMetricId, mozilla::glean::TimerId aTimerId) {
auto mirrorId = mozilla::glean::HistogramIdForMetric(aMetricId);
if (mirrorId) {
mozilla::glean::GetTimerIdToStartsLock().apply([&](auto& lock) {
auto tuple = mozilla::glean::MetricTimerTuple{aMetricId, aTimerId};
auto optStart = lock.ref()->Extract(tuple);
// The timer might not be in the map to be removed if it's already been
// cancelled or stop_and_accumulate'd.
if (!NS_WARN_IF(!optStart)) {
AccumulateTimeDelta(mirrorId.extract(), optStart.extract());
}
});
}
}
// Called from within FOG's Rust impl.
extern "C" NS_EXPORT void GIFFT_TimingDistributionAccumulateRawMillis(
uint32_t aMetricId, uint32_t aMS) {
auto mirrorId = mozilla::glean::HistogramIdForMetric(aMetricId);
if (mirrorId) {
Accumulate(mirrorId.extract(), aMS);
}
}
// Called from within FOG's Rust impl.
extern "C" NS_EXPORT void GIFFT_TimingDistributionCancel(
uint32_t aMetricId, mozilla::glean::TimerId aTimerId) {
auto mirrorId = mozilla::glean::HistogramIdForMetric(aMetricId);
if (mirrorId) {
mozilla::glean::GetTimerIdToStartsLock().apply([&](auto& lock) {
// The timer might not be in the map to be removed if it's already been
// cancelled or stop_and_accumulate'd.
auto tuple = mozilla::glean::MetricTimerTuple{aMetricId, aTimerId};
(void)NS_WARN_IF(!lock.ref()->Remove(tuple));
});
}
}
namespace mozilla::glean {
namespace impl {
TimerId TimingDistributionMetric::Start() const {
return fog_timing_distribution_start(mId);
}
void TimingDistributionMetric::StopAndAccumulate(const TimerId&& aId) const {
fog_timing_distribution_stop_and_accumulate(mId, aId);
}
// Intentionally not exposed to JS for lack of use case and a time duration
// type.
void TimingDistributionMetric::AccumulateRawDuration(
const TimeDuration& aDuration) const {
fog_timing_distribution_accumulate_raw_nanos(
mId, uint64_t(aDuration.ToMicroseconds() * 1000.00));
}
void TimingDistributionMetric::Cancel(const TimerId&& aId) const {
fog_timing_distribution_cancel(mId, aId);
}
Result<Maybe<DistributionData>, nsCString>
TimingDistributionMetric::TestGetValue(const nsACString& aPingName) const {
nsCString err;
if (fog_timing_distribution_test_get_error(mId, &err)) {
return Err(err);
}
if (!fog_timing_distribution_test_has_value(mId, &aPingName)) {
return Maybe<DistributionData>();
}
nsTArray<uint64_t> buckets;
nsTArray<uint64_t> counts;
uint64_t sum;
fog_timing_distribution_test_get_value(mId, &aPingName, &sum, &buckets,
&counts);
return Some(DistributionData(buckets, counts, sum));
}
} // namespace impl
NS_IMPL_CLASSINFO(GleanTimingDistribution, nullptr, 0, {0})
NS_IMPL_ISUPPORTS_CI(GleanTimingDistribution, nsIGleanTimingDistribution)
NS_IMETHODIMP
GleanTimingDistribution::Start(JSContext* aCx,
JS::MutableHandle<JS::Value> aResult) {
if (!dom::ToJSValue(aCx, mTimingDist.Start(), aResult)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
GleanTimingDistribution::StopAndAccumulate(uint64_t aId) {
mTimingDist.StopAndAccumulate(std::move(aId));
return NS_OK;
}
NS_IMETHODIMP
GleanTimingDistribution::Cancel(uint64_t aId) {
mTimingDist.Cancel(std::move(aId));
return NS_OK;
}
NS_IMETHODIMP
GleanTimingDistribution::TestGetValue(const nsACString& aPingName,
JSContext* aCx,
JS::MutableHandle<JS::Value> aResult) {
auto result = mTimingDist.TestGetValue(aPingName);
if (result.isErr()) {
aResult.set(JS::UndefinedValue());
LogToBrowserConsole(nsIScriptError::errorFlag,
NS_ConvertUTF8toUTF16(result.unwrapErr()));
return NS_ERROR_LOSS_OF_SIGNIFICANT_DATA;
}
auto optresult = result.unwrap();
if (optresult.isNothing()) {
aResult.set(JS::UndefinedValue());
} else {
// Build return value of the form: { sum: #, values: {bucket1: count1,
// ...}
JS::Rooted<JSObject*> root(aCx, JS_NewPlainObject(aCx));
if (!root) {
return NS_ERROR_FAILURE;
}
uint64_t sum = optresult.ref().sum;
if (!JS_DefineProperty(aCx, root, "sum", static_cast<double>(sum),
JSPROP_ENUMERATE)) {
return NS_ERROR_FAILURE;
}
JS::Rooted<JSObject*> valuesObj(aCx, JS_NewPlainObject(aCx));
if (!valuesObj ||
!JS_DefineProperty(aCx, root, "values", valuesObj, JSPROP_ENUMERATE)) {
return NS_ERROR_FAILURE;
}
auto& data = optresult.ref().values;
for (const auto& entry : data) {
const uint64_t bucket = entry.GetKey();
const uint64_t count = entry.GetData();
if (!JS_DefineProperty(aCx, valuesObj,
nsPrintfCString("%" PRIu64, bucket).get(),
static_cast<double>(count), JSPROP_ENUMERATE)) {
return NS_ERROR_FAILURE;
}
}
aResult.setObject(*root);
}
return NS_OK;
}
NS_IMETHODIMP
GleanTimingDistribution::TestAccumulateRawMillis(uint64_t aSample) {
mTimingDist.AccumulateRawDuration(TimeDuration::FromMilliseconds(aSample));
return NS_OK;
}
} // namespace mozilla::glean
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