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// Copyright 2017 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef COBALT_BROWSER_MEMORY_TRACKER_TOOL_PRINT_CSV_TOOL_H_
#define COBALT_BROWSER_MEMORY_TRACKER_TOOL_PRINT_CSV_TOOL_H_
#include <map>
#include <string>
#include "base/compiler_specific.h"
#include "cobalt/browser/memory_tracker/tool/params.h"
#include "cobalt/browser/memory_tracker/tool/tool_impl.h"
namespace cobalt {
namespace browser {
namespace memory_tracker {
// Generates CSV values of the engine.
// There are three sections of data including:
// 1. average bytes / alloc
// 2. # Bytes allocated per memory scope.
// 3. # Allocations per memory scope.
// This data can be pasted directly into a Google spreadsheet and visualized.
// Note that this thread will implicitly call Start() is called during
// construction and Cancel() & Join() during destruction.
class PrintCSVTool : public AbstractTool {
public:
// This tool will only produce on CSV dump of the engine. This is useful
// for profiling startup memory consumption.
PrintCSVTool(int sampling_interval_ms, int sampling_time_ms);
// Overridden so that the thread can exit gracefully.
virtual void Run(Params* params) OVERRIDE;
virtual std::string tool_name() const OVERRIDE {
return "MemoryTrackerPrintCSV";
}
private:
typedef std::map<std::string, AllocationSamples> MapAllocationSamples;
static std::string ToCsvString(const MapAllocationSamples& samples);
static const char* UntrackedMemoryKey();
bool TimeExpiredYet(const Params& params);
const int sample_interval_ms_;
const int sampling_time_ms_;
};
} // namespace memory_tracker
} // namespace browser
} // namespace cobalt
#endif // COBALT_BROWSER_MEMORY_TRACKER_TOOL_PRINT_CSV_TOOL_H_