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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/Counter.h"
#include "nsITelemetry.h"
#include "nsString.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/ResultVariant.h"
#include "mozilla/dom/GleanMetricsBinding.h"
#include "mozilla/glean/bindings/HistogramGIFFTMap.h"
#include "mozilla/glean/bindings/ScalarGIFFTMap.h"
#include "mozilla/glean/fog_ffi_generated.h"
#include "GIFFTFwd.h"
using mozilla::Telemetry::HistogramID;
/* static */
void accumulateToBoolean(HistogramID aId, const nsACString& aLabel,
int32_t aAmount) {
MOZ_ASSERT(aAmount == 1,
"When mirroring to boolean histograms, we only support "
"accumulating one sample at a time.");
if (aLabel.EqualsASCII("true")) {
TelemetryHistogram::Accumulate(aId, true);
} else if (aLabel.EqualsASCII("false")) {
TelemetryHistogram::Accumulate(aId, false);
} else {
MOZ_ASSERT_UNREACHABLE(
"When mirroring to boolean histograms, we only support labels 'true' "
"and 'false'");
}
}
/* static */
void accumulateToKeyedBoolean(HistogramID aId, const nsACString& aKey,
const nsACString& aCategory, int32_t aAmount) {
MOZ_ASSERT(aAmount == 1,
"When mirroring to keyed boolean histograms, we only support "
"accumulating one sample at a time.");
if (aCategory.EqualsASCII("true")) {
TelemetryHistogram::Accumulate(aId, PromiseFlatCString(aKey), true);
} else if (aCategory.EqualsASCII("false")) {
TelemetryHistogram::Accumulate(aId, PromiseFlatCString(aKey), false);
} else {
MOZ_ASSERT_UNREACHABLE(
"When mirroring to keyed boolean histograms, we only support labels "
"'true' and 'false'");
}
}
/* static */
void accumulateToKeyedCount(HistogramID aId, const nsCString& aLabel,
int32_t aAmount) {
TelemetryHistogram::Accumulate(aId, aLabel, aAmount);
}
/* static */
void accumulateToCategorical(HistogramID aId, const nsCString& aLabel,
int32_t aAmount) {
MOZ_ASSERT(aAmount == 1,
"When mirroring to categorical histograms, we only support "
"accumulating one sample at a time.");
TelemetryHistogram::AccumulateCategorical(aId, aLabel);
}
/* static */
void accumulateToKeyedCategorical(HistogramID aId, const nsCString& aKey,
const nsCString& aCategory, int32_t aAmount) {
MOZ_ASSERT(aAmount == 1,
"When mirroring to keyed categorical histograms, we only support "
"accumulating one sample at a time.");
TelemetryHistogram::AccumulateCategorical(aId, aKey, aCategory);
}
namespace mozilla::glean {
namespace impl {
template <>
void CounterMetric<CounterType::eBaseOrLabeled>::Add(int32_t aAmount) const {
auto scalarId = ScalarIdForMetric(mId);
if (aAmount >= 0) {
if (scalarId) {
TelemetryScalar::Add(scalarId.extract(), aAmount);
} else if (IsSubmetricId(mId)) {
bool mirrorsToKeyedScalar = false;
GetLabeledMirrorLock().apply([&](const auto& lock) {
auto tuple = lock.ref()->MaybeGet(mId);
mirrorsToKeyedScalar = !!tuple;
if (tuple && aAmount > 0) {
TelemetryScalar::Add(std::get<0>(tuple.ref()),
std::get<1>(tuple.ref()), (uint32_t)aAmount);
}
});
if (!mirrorsToKeyedScalar) {
GetLabeledDistributionMirrorLock().apply([&](const auto& lock) {
auto tuple = lock.ref()->MaybeGet(mId);
if (tuple) {
HistogramID hId = std::get<0>(tuple.ref());
switch (TelemetryHistogram::GetHistogramType(hId)) {
case nsITelemetry::HISTOGRAM_BOOLEAN:
accumulateToBoolean(hId, std::get<1>(tuple.ref()), aAmount);
break;
case nsITelemetry::HISTOGRAM_COUNT:
accumulateToKeyedCount(hId, std::get<1>(tuple.ref()), aAmount);
break;
case nsITelemetry::HISTOGRAM_CATEGORICAL:
accumulateToCategorical(hId, std::get<1>(tuple.ref()), aAmount);
break;
default:
MOZ_ASSERT_UNREACHABLE(
"Asked to mirror labeled_counter to unsupported histogram "
"type.");
break;
}
}
});
}
} else {
auto hgramId = HistogramIdForMetric(mId);
if (hgramId) {
TelemetryHistogram::Accumulate(hgramId.extract(), aAmount);
}
}
}
fog_counter_add(mId, aAmount);
}
template <>
void CounterMetric<CounterType::eDualLabeled>::Add(int32_t aAmount) const {
if (IsSubmetricId(mId)) {
GetDualLabeledDistributionMirrorLock().apply([&](const auto& lock) {
auto tuple = lock.ref()->MaybeGet(mId);
if (tuple) {
HistogramID hId = std::get<0>(tuple.ref());
switch (TelemetryHistogram::GetHistogramType(hId)) {
case nsITelemetry::HISTOGRAM_BOOLEAN:
accumulateToKeyedBoolean(hId, std::get<1>(tuple.ref()),
std::get<2>(tuple.ref()), aAmount);
break;
case nsITelemetry::HISTOGRAM_CATEGORICAL:
accumulateToKeyedCategorical(hId, std::get<1>(tuple.ref()),
std::get<2>(tuple.ref()), aAmount);
break;
default:
MOZ_ASSERT_UNREACHABLE(
"Asked to mirror dual_labeled_counter to unsupported "
"histogram type.");
break;
}
}
});
}
fog_dual_labeled_counter_add(mId, aAmount);
}
template <>
Result<Maybe<int32_t>, nsCString>
CounterMetric<CounterType::eBaseOrLabeled>::TestGetValue(
const nsACString& aPingName) const {
nsCString err;
if (fog_counter_test_get_error(mId, &err)) {
return Err(err);
}
if (!fog_counter_test_has_value(mId, &aPingName)) {
return Maybe<int32_t>(); // can't use Nothing() or templates will fail.
}
return Some(fog_counter_test_get_value(mId, &aPingName));
}
template <>
Result<Maybe<int32_t>, nsCString>
CounterMetric<CounterType::eDualLabeled>::TestGetValue(
const nsACString& aPingName) const {
nsCString err;
if (fog_dual_labeled_counter_test_get_error(mId, &err)) {
return Err(err);
}
if (!fog_dual_labeled_counter_test_has_value(mId, &aPingName)) {
return Maybe<int32_t>(); // can't use Nothing() or templates will fail.
}
return Some(fog_dual_labeled_counter_test_get_value(mId, &aPingName));
}
} // namespace impl
/* virtual */
JSObject* GleanCounter::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return dom::GleanCounter_Binding::Wrap(aCx, this, aGivenProto);
}
void GleanCounter::Add(int32_t aAmount) {
switch (mType) {
case impl::CounterType::eBaseOrLabeled:
impl::CounterMetric<impl::CounterType::eBaseOrLabeled>(mId).Add(aAmount);
break;
case impl::CounterType::eDualLabeled:
impl::CounterMetric<impl::CounterType::eDualLabeled>(mId).Add(aAmount);
break;
default:
MOZ_ASSERT_UNREACHABLE();
}
}
dom::Nullable<int32_t> GleanCounter::TestGetValue(const nsACString& aPingName,
ErrorResult& aRv) {
dom::Nullable<int32_t> ret;
Result<Maybe<int32_t>, nsCString> result(Err(VoidCString()));
switch (mType) {
case impl::CounterType::eBaseOrLabeled:
result = impl::CounterMetric<impl::CounterType::eBaseOrLabeled>(mId)
.TestGetValue(aPingName);
break;
case impl::CounterType::eDualLabeled:
result = impl::CounterMetric<impl::CounterType::eDualLabeled>(mId)
.TestGetValue(aPingName);
break;
default:
MOZ_ASSERT_UNREACHABLE();
}
if (result.isErr()) {
aRv.ThrowDataError(result.unwrapErr());
return ret;
}
auto optresult = result.unwrap();
if (!optresult.isNothing()) {
ret.SetValue(optresult.value());
}
return ret;
}
} // namespace mozilla::glean
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