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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Histogram is an object that aggregates statistics, and can summarize them in | 5 // Histogram is an object that aggregates statistics, and can summarize them in |
6 // various forms, including ASCII graphical, HTML, and numerically (as a | 6 // various forms, including ASCII graphical, HTML, and numerically (as a |
7 // vector of numbers corresponding to each of the aggregating buckets). | 7 // vector of numbers corresponding to each of the aggregating buckets). |
8 // See header file for details and examples. | 8 // See header file for details and examples. |
9 | 9 |
10 #include "base/metrics/histogram.h" | 10 #include "base/metrics/histogram.h" |
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607 } | 607 } |
608 | 608 |
609 std::unique_ptr<SampleVector> Histogram::SnapshotAllSamples() const { | 609 std::unique_ptr<SampleVector> Histogram::SnapshotAllSamples() const { |
610 std::unique_ptr<SampleVector> samples = SnapshotUnloggedSamples(); | 610 std::unique_ptr<SampleVector> samples = SnapshotUnloggedSamples(); |
611 samples->Add(*logged_samples_); | 611 samples->Add(*logged_samples_); |
612 return samples; | 612 return samples; |
613 } | 613 } |
614 | 614 |
615 std::unique_ptr<SampleVector> Histogram::SnapshotUnloggedSamples() const { | 615 std::unique_ptr<SampleVector> Histogram::SnapshotUnloggedSamples() const { |
616 // TODO(bcwhite): Remove these CHECKs once crbug/734049 is resolved. | 616 // TODO(bcwhite): Remove these CHECKs once crbug/734049 is resolved. |
| 617 HistogramSamples* unlogged = unlogged_samples_.get(); |
617 CHECK(unlogged_samples_); | 618 CHECK(unlogged_samples_); |
618 CHECK(unlogged_samples_->id()); | 619 CHECK(unlogged_samples_->id()); |
619 CHECK(bucket_ranges()); | 620 CHECK(bucket_ranges()); |
620 std::unique_ptr<SampleVector> samples( | 621 std::unique_ptr<SampleVector> samples( |
621 new SampleVector(unlogged_samples_->id(), bucket_ranges())); | 622 new SampleVector(unlogged_samples_->id(), bucket_ranges())); |
622 samples->Add(*unlogged_samples_); | 623 samples->Add(*unlogged_samples_); |
| 624 debug::Alias(&unlogged); |
623 return samples; | 625 return samples; |
624 } | 626 } |
625 | 627 |
626 void Histogram::WriteAsciiImpl(bool graph_it, | 628 void Histogram::WriteAsciiImpl(bool graph_it, |
627 const std::string& newline, | 629 const std::string& newline, |
628 std::string* output) const { | 630 std::string* output) const { |
629 // Get local (stack) copies of all effectively volatile class data so that we | 631 // Get local (stack) copies of all effectively volatile class data so that we |
630 // are consistent across our output activities. | 632 // are consistent across our output activities. |
631 std::unique_ptr<SampleVector> snapshot = SnapshotAllSamples(); | 633 std::unique_ptr<SampleVector> snapshot = SnapshotAllSamples(); |
632 Count sample_count = snapshot->TotalCount(); | 634 Count sample_count = snapshot->TotalCount(); |
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1221 Sample sample = custom_ranges[i]; | 1223 Sample sample = custom_ranges[i]; |
1222 if (sample < 0 || sample > HistogramBase::kSampleType_MAX - 1) | 1224 if (sample < 0 || sample > HistogramBase::kSampleType_MAX - 1) |
1223 return false; | 1225 return false; |
1224 if (sample != 0) | 1226 if (sample != 0) |
1225 has_valid_range = true; | 1227 has_valid_range = true; |
1226 } | 1228 } |
1227 return has_valid_range; | 1229 return has_valid_range; |
1228 } | 1230 } |
1229 | 1231 |
1230 } // namespace base | 1232 } // namespace base |
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