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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_DIAGNOSTICS_BASIC_BLOCK_PROFILER_H_
#define V8_DIAGNOSTICS_BASIC_BLOCK_PROFILER_H_
#include <iosfwd>
#include <list>
#include <string>
#include <vector>
#include "src/base/macros.h"
#include "src/base/platform/mutex.h"
#include "src/common/globals.h"
namespace v8 {
namespace internal {
class BasicBlockProfiler {
public:
class Data {
public:
size_t n_blocks() const { return n_blocks_; }
const uint32_t* counts() const { return &counts_[0]; }
void SetCode(std::ostringstream* os);
void SetFunctionName(std::unique_ptr<char[]> name);
void SetSchedule(std::ostringstream* os);
void SetBlockRpoNumber(size_t offset, int32_t block_rpo);
intptr_t GetCounterAddress(size_t offset);
private:
friend class BasicBlockProfiler;
friend std::ostream& operator<<(std::ostream& os,
const BasicBlockProfiler::Data& s);
explicit Data(size_t n_blocks);
~Data() = default;
V8_EXPORT_PRIVATE void ResetCounts();
const size_t n_blocks_;
std::vector<int32_t> block_rpo_numbers_;
std::vector<uint32_t> counts_;
std::string function_name_;
std::string schedule_;
std::string code_;
DISALLOW_COPY_AND_ASSIGN(Data);
};
using DataList = std::list<Data*>;
BasicBlockProfiler() = default;
~BasicBlockProfiler();
V8_EXPORT_PRIVATE static BasicBlockProfiler* Get();
Data* NewData(size_t n_blocks);
V8_EXPORT_PRIVATE void ResetCounts();
const DataList* data_list() { return &data_list_; }
private:
friend V8_EXPORT_PRIVATE std::ostream& operator<<(
std::ostream& os, const BasicBlockProfiler& s);
DataList data_list_;
base::Mutex data_list_mutex_;
DISALLOW_COPY_AND_ASSIGN(BasicBlockProfiler);
};
V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os,
const BasicBlockProfiler& s);
std::ostream& operator<<(std::ostream& os, const BasicBlockProfiler::Data& s);
} // namespace internal
} // namespace v8
#endif // V8_DIAGNOSTICS_BASIC_BLOCK_PROFILER_H_