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// Copyright (c) 2012 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/sparse_histogram.h"
#include "base/metrics/statistics_recorder.h"
using std::string;
namespace base {
// static
HistogramBase* SparseHistogram::FactoryGet(const string& name,
int32 flags) {
// TODO(kaiwang): Register and get SparseHistogram with StatisticsRecorder.
HistogramBase* histogram = new SparseHistogram(name);
histogram->SetFlags(flags);
return histogram;
}
SparseHistogram::~SparseHistogram() {}
void SparseHistogram::Add(Sample value) {
base::AutoLock auto_lock(lock_);
samples_[value]++;
}
void SparseHistogram::SnapshotSample(std::map<Sample, Count>* samples) const {
base::AutoLock auto_lock(lock_);
*samples = samples_;
}
void SparseHistogram::WriteHTMLGraph(string* output) const {
// TODO(kaiwang): Implement.
}
void SparseHistogram::WriteAscii(string* output) const {
// TODO(kaiwang): Implement.
}
SparseHistogram::SparseHistogram(const string& name)
: HistogramBase(name) {}
} // namespace base
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