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Issue 113473: Automatically adapt to faster/slower uploads of renderer histograms... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 11 years, 7 months ago
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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2006-2008 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/histogram.h" 10 #include "base/histogram.h"
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357 pickle.WriteInt(histogram.declared_max()); 357 pickle.WriteInt(histogram.declared_max());
358 pickle.WriteSize(histogram.bucket_count()); 358 pickle.WriteSize(histogram.bucket_count());
359 pickle.WriteInt(histogram.histogram_type()); 359 pickle.WriteInt(histogram.histogram_type());
360 pickle.WriteInt(histogram.flags()); 360 pickle.WriteInt(histogram.flags());
361 361
362 snapshot.Serialize(&pickle); 362 snapshot.Serialize(&pickle);
363 return std::string(static_cast<const char*>(pickle.data()), pickle.size()); 363 return std::string(static_cast<const char*>(pickle.data()), pickle.size());
364 } 364 }
365 365
366 // static 366 // static
367 void Histogram::DeserializeHistogramList(
368 const std::vector<std::string>& histograms) {
369 for (std::vector<std::string>::const_iterator it = histograms.begin();
370 it < histograms.end();
371 ++it) {
372 DeserializeHistogramInfo(*it);
373 }
374 }
375
376 // static
377 bool Histogram::DeserializeHistogramInfo(const std::string& histogram_info) { 367 bool Histogram::DeserializeHistogramInfo(const std::string& histogram_info) {
378 if (histogram_info.empty()) { 368 if (histogram_info.empty()) {
379 return false; 369 return false;
380 } 370 }
381 371
382 Pickle pickle(histogram_info.data(), 372 Pickle pickle(histogram_info.data(),
383 static_cast<int>(histogram_info.size())); 373 static_cast<int>(histogram_info.size()));
384 void* iter = NULL; 374 void* iter = NULL;
385 size_t bucket_count; 375 size_t bucket_count;
386 int declared_min; 376 int declared_min;
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785 snapshot->push_back(it->second); 775 snapshot->push_back(it->second);
786 } 776 }
787 } 777 }
788 778
789 // static 779 // static
790 StatisticsRecorder::HistogramMap* StatisticsRecorder::histograms_ = NULL; 780 StatisticsRecorder::HistogramMap* StatisticsRecorder::histograms_ = NULL;
791 // static 781 // static
792 Lock* StatisticsRecorder::lock_ = NULL; 782 Lock* StatisticsRecorder::lock_ = NULL;
793 // static 783 // static
794 bool StatisticsRecorder::dump_on_exit_ = false; 784 bool StatisticsRecorder::dump_on_exit_ = false;
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