101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#include "mozilla/glean/bindings/MemoryDistribution.h"
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#include "mozilla/Components.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/ResultVariant.h"
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#include "mozilla/dom/GleanMetricsBinding.h"
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#include "mozilla/glean/bindings/HistogramGIFFTMap.h"
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#include "mozilla/glean/bindings/ScalarGIFFTMap.h"
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#include "mozilla/glean/fog_ffi_generated.h"
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#include "nsIClassInfoImpl.h"
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#include "nsJSUtils.h"
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#include "nsPrintfCString.h"
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#include "nsString.h"
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#include "js/PropertyAndElement.h" // JS_DefineProperty
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#include "GIFFTFwd.h"
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namespace mozilla::glean {
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namespace impl {
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void MemoryDistributionMetric::Accumulate(size_t aSample) const {
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auto hgramId = HistogramIdForMetric(mId);
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if (hgramId) {
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TelemetryHistogram::Accumulate(hgramId.extract(), aSample);
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} else if (IsSubmetricId(mId)) {
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GetLabeledDistributionMirrorLock().apply([&](const auto& lock) {
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auto tuple = lock.ref()->MaybeGet(mId);
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if (tuple) {
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TelemetryHistogram::Accumulate(std::get<0>(tuple.ref()),
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std::get<1>(tuple.ref()), aSample);
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}
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});
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}
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static_assert(sizeof(size_t) <= sizeof(uint64_t),
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"Memory distribution samples might overflow.");
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fog_memory_distribution_accumulate(mId, aSample);
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}
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Result<Maybe<DistributionData>, nsCString>
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MemoryDistributionMetric::TestGetValue(const nsACString& aPingName) const {
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nsCString err;
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if (fog_memory_distribution_test_get_error(mId, &err)) {
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return Err(err);
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}
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if (!fog_memory_distribution_test_has_value(mId, &aPingName)) {
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return Maybe<DistributionData>();
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}
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nsTArray<uint64_t> buckets;
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nsTArray<uint64_t> counts;
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uint64_t sum;
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uint64_t count;
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fog_memory_distribution_test_get_value(mId, &aPingName, &sum, &count,
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&buckets, &counts);
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return Some(DistributionData(buckets, counts, sum, count));
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}
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} // namespace impl
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/* virtual */
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JSObject* GleanMemoryDistribution::WrapObject(
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JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
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return dom::GleanMemoryDistribution_Binding::Wrap(aCx, this, aGivenProto);
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}
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void GleanMemoryDistribution::Accumulate(uint64_t aSample) {
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mMemoryDist.Accumulate(aSample);
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}
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void GleanMemoryDistribution::TestGetValue(
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const nsACString& aPingName,
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dom::Nullable<dom::GleanDistributionData>& aRetval, ErrorResult& aRv) {
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auto result = mMemoryDist.TestGetValue(aPingName);
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if (result.isErr()) {
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aRv.ThrowDataError(result.unwrapErr());
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return;
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}
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auto optresult = result.unwrap();
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if (optresult.isNothing()) {
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return;
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}
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dom::GleanDistributionData ret;
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ret.mSum = optresult.ref().sum;
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ret.mCount = optresult.ref().count;
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auto& data = optresult.ref().values;
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for (const auto& entry : data) {
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dom::binding_detail::RecordEntry<nsCString, uint64_t> bucket;
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bucket.mKey = nsPrintfCString("%" PRIu64, entry.GetKey());
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bucket.mValue = entry.GetData();
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ret.mValues.Entries().EmplaceBack(std::move(bucket));
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}
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aRetval.SetValue(std::move(ret));
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}
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} // namespace mozilla::glean
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