1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/* -*- 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/CustomDistribution.h"
#include "Common.h"
#include "mozilla/Components.h"
#include "mozilla/ResultVariant.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
namespace mozilla::glean {
namespace impl {
void CustomDistributionMetric::AccumulateSamples(
const nsTArray<uint64_t>& aSamples) const {
auto hgramId = HistogramIdForMetric(mId);
if (hgramId) {
auto id = hgramId.extract();
// N.B.: There is an `Accumulate(nsTArray<T>)`, but `T` is `uint32_t` and
// we got `uint64_t`s here.
for (auto sample : aSamples) {
Telemetry::Accumulate(id, sample);
}
}
fog_custom_distribution_accumulate_samples(mId, &aSamples);
}
void CustomDistributionMetric::AccumulateSamplesSigned(
const nsTArray<int64_t>& aSamples) const {
auto hgramId = HistogramIdForMetric(mId);
if (hgramId) {
auto id = hgramId.extract();
// N.B.: There is an `Accumulate(nsTArray<T>)`, but `T` is `uint32_t` and
// we got `int64_t`s here.
for (auto sample : aSamples) {
Telemetry::Accumulate(id, sample);
}
}
fog_custom_distribution_accumulate_samples_signed(mId, &aSamples);
}
Result<Maybe<DistributionData>, nsCString>
CustomDistributionMetric::TestGetValue(const nsACString& aPingName) const {
nsCString err;
if (fog_custom_distribution_test_get_error(mId, &err)) {
return Err(err);
}
if (!fog_custom_distribution_test_has_value(mId, &aPingName)) {
return Maybe<DistributionData>();
}
nsTArray<uint64_t> buckets;
nsTArray<uint64_t> counts;
uint64_t sum;
fog_custom_distribution_test_get_value(mId, &aPingName, &sum, &buckets,
&counts);
return Some(DistributionData(buckets, counts, sum));
}
} // namespace impl
NS_IMPL_CLASSINFO(GleanCustomDistribution, nullptr, 0, {0})
NS_IMPL_ISUPPORTS_CI(GleanCustomDistribution, nsIGleanCustomDistribution)
NS_IMETHODIMP
GleanCustomDistribution::AccumulateSamples(const nsTArray<int64_t>& aSamples) {
mCustomDist.AccumulateSamplesSigned(aSamples);
return NS_OK;
}
NS_IMETHODIMP
GleanCustomDistribution::TestGetValue(const nsACString& aPingName,
JSContext* aCx,
JS::MutableHandle<JS::Value> aResult) {
auto result = mCustomDist.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;
}
} // namespace mozilla::glean
|
