text: /* Copyright 2016 Carnegie Mellon University, NVIDIA Corporation
   *
   * 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.
   */
  
  #pragma once
  
  #include "scanner/util/util.h"
  
  #include <atomic>
  #include <fstream>
  #include <map>
  #include <string>
  #include <vector>
  
  namespace storehouse {
  class WriteFile;
  }
  
  namespace scanner {
  
  class Profiler {
   public:
    Profiler(timepoint_t base_time);
  
    Profiler(const Profiler& other);
  
    void add_interval(const std::string& key, timepoint_t start, timepoint_t end);
  
    void increment(const std::string& key, int64_t value);
  
    struct TaskRecord {
      std::string key;
      int64_t start;
      int64_t end;
    };
  
    const std::vector<TaskRecord>& get_records() const;
  
    const std::map<std::string, int64_t>& get_counters() const;
  
   protected:
    void spin_lock();
    void unlock();
  
    timepoint_t base_time_;
    std::atomic_flag lock_;
    std::vector<TaskRecord> records_;
    std::map<std::string, int64_t> counters_;
  };
  
  class ProfileBlock {
    public:
    ProfileBlock(Profiler* profiler, std::string label);
    ~ProfileBlock();
  protected:
    Profiler* profiler_;
    std::string label_;
    timepoint_t start_;
  };
  
  void write_profiler_to_file(storehouse::WriteFile* file, int64_t node,
                              std::string type_name, std::string tag,
                              int64_t worker_num, const Profiler& profiler);
  
  }  // namespace scanner
  
  #include "scanner/util/profiler.inl"
  