blob: afbb4478b8fb062c5e8ccd076bdca567e2eb0256 (
plain)
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
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/cronet/histogram_manager.h"
#include <string>
#include <vector>
#include "base/lazy_instance.h"
#include "base/metrics/histogram.h"
#include "base/metrics/histogram_samples.h"
#include "components/metrics/histogram_encoder.h"
namespace cronet {
// TODO(rtenneti): move g_histogram_manager into java code.
static base::LazyInstance<HistogramManager>::Leaky
g_histogram_manager = LAZY_INSTANCE_INITIALIZER;
HistogramManager::HistogramManager() : histogram_snapshot_manager_(this) {
}
HistogramManager::~HistogramManager() {
}
// static
HistogramManager* HistogramManager::GetInstance() {
return g_histogram_manager.Pointer();
}
void HistogramManager::RecordDelta(const base::HistogramBase& histogram,
const base::HistogramSamples& snapshot) {
EncodeHistogramDelta(histogram.histogram_name(), snapshot, &uma_proto_);
}
void HistogramManager::InconsistencyDetected(
base::HistogramBase::Inconsistency problem) {
UMA_HISTOGRAM_ENUMERATION("Histogram.InconsistenciesBrowser.Cronet",
problem, base::HistogramBase::NEVER_EXCEEDED_VALUE);
}
void HistogramManager::UniqueInconsistencyDetected(
base::HistogramBase::Inconsistency problem) {
UMA_HISTOGRAM_ENUMERATION("Histogram.InconsistenciesBrowserUnique.Cronet",
problem, base::HistogramBase::NEVER_EXCEEDED_VALUE);
}
void HistogramManager::InconsistencyDetectedInLoggedCount(int amount) {
UMA_HISTOGRAM_COUNTS("Histogram.InconsistentSnapshotBrowser.Cronet",
std::abs(amount));
}
bool HistogramManager::GetDeltas(std::vector<uint8>* data) {
// Clear the protobuf between calls.
uma_proto_.Clear();
histogram_snapshot_manager_.PrepareDeltas(
base::Histogram::kNoFlags, base::Histogram::kUmaTargetedHistogramFlag);
int32_t data_size = uma_proto_.ByteSize();
data->resize(data_size);
if (uma_proto_.SerializeToArray(&(*data)[0], data_size))
return true;
data->clear();
return false;
}
} // namespace cronet
|
