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Unified Diff: base/metrics/histogram_delta_serialization.cc

Issue 1647803004: Move base to DEPS (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
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Index: base/metrics/histogram_delta_serialization.cc
diff --git a/base/metrics/histogram_delta_serialization.cc b/base/metrics/histogram_delta_serialization.cc
deleted file mode 100644
index e4aad13ac229aea13033635f8221f2e62dd96958..0000000000000000000000000000000000000000
--- a/base/metrics/histogram_delta_serialization.cc
+++ /dev/null
@@ -1,111 +0,0 @@
-// Copyright 2013 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 "base/metrics/histogram_delta_serialization.h"
-
-#include "base/logging.h"
-#include "base/metrics/histogram_base.h"
-#include "base/metrics/histogram_snapshot_manager.h"
-#include "base/numerics/safe_conversions.h"
-#include "base/pickle.h"
-#include "base/values.h"
-
-namespace base {
-
-namespace {
-
-// Create or find existing histogram and add the samples from pickle.
-// Silently returns when seeing any data problem in the pickle.
-void DeserializeHistogramAndAddSamples(PickleIterator* iter) {
- HistogramBase* histogram = DeserializeHistogramInfo(iter);
- if (!histogram)
- return;
-
- if (histogram->flags() & HistogramBase::kIPCSerializationSourceFlag) {
- DVLOG(1) << "Single process mode, histogram observed and not copied: "
- << histogram->histogram_name();
- return;
- }
- histogram->AddSamplesFromPickle(iter);
-}
-
-} // namespace
-
-HistogramDeltaSerialization::HistogramDeltaSerialization(
- const std::string& caller_name)
- : histogram_snapshot_manager_(this),
- serialized_deltas_(NULL) {
- inconsistencies_histogram_ =
- LinearHistogram::FactoryGet(
- "Histogram.Inconsistencies" + caller_name, 1,
- HistogramBase::NEVER_EXCEEDED_VALUE,
- HistogramBase::NEVER_EXCEEDED_VALUE + 1,
- HistogramBase::kUmaTargetedHistogramFlag);
-
- inconsistencies_unique_histogram_ =
- LinearHistogram::FactoryGet(
- "Histogram.Inconsistencies" + caller_name + "Unique", 1,
- HistogramBase::NEVER_EXCEEDED_VALUE,
- HistogramBase::NEVER_EXCEEDED_VALUE + 1,
- HistogramBase::kUmaTargetedHistogramFlag);
-
- inconsistent_snapshot_histogram_ =
- Histogram::FactoryGet(
- "Histogram.InconsistentSnapshot" + caller_name, 1, 1000000, 50,
- HistogramBase::kUmaTargetedHistogramFlag);
-}
-
-HistogramDeltaSerialization::~HistogramDeltaSerialization() {
-}
-
-void HistogramDeltaSerialization::PrepareAndSerializeDeltas(
- std::vector<std::string>* serialized_deltas) {
- serialized_deltas_ = serialized_deltas;
- // Note: Before serializing, we set the kIPCSerializationSourceFlag for all
- // the histograms, so that the receiving process can distinguish them from the
- // local histograms.
- histogram_snapshot_manager_.PrepareDeltas(
- Histogram::kIPCSerializationSourceFlag, Histogram::kNoFlags);
- serialized_deltas_ = NULL;
-}
-
-// static
-void HistogramDeltaSerialization::DeserializeAndAddSamples(
- const std::vector<std::string>& serialized_deltas) {
- for (std::vector<std::string>::const_iterator it = serialized_deltas.begin();
- it != serialized_deltas.end(); ++it) {
- Pickle pickle(it->data(), checked_cast<int>(it->size()));
- PickleIterator iter(pickle);
- DeserializeHistogramAndAddSamples(&iter);
- }
-}
-
-void HistogramDeltaSerialization::RecordDelta(
- const HistogramBase& histogram,
- const HistogramSamples& snapshot) {
- DCHECK_NE(0, snapshot.TotalCount());
-
- Pickle pickle;
- histogram.SerializeInfo(&pickle);
- snapshot.Serialize(&pickle);
- serialized_deltas_->push_back(
- std::string(static_cast<const char*>(pickle.data()), pickle.size()));
-}
-
-void HistogramDeltaSerialization::InconsistencyDetected(
- HistogramBase::Inconsistency problem) {
- inconsistencies_histogram_->Add(problem);
-}
-
-void HistogramDeltaSerialization::UniqueInconsistencyDetected(
- HistogramBase::Inconsistency problem) {
- inconsistencies_unique_histogram_->Add(problem);
-}
-
-void HistogramDeltaSerialization::InconsistencyDetectedInLoggedCount(
- int amount) {
- inconsistent_snapshot_histogram_->Add(std::abs(amount));
-}
-
-} // namespace base
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