YugabyteDB (2.13.0.0-b42, bfc6a6643e7399ac8a0e81d06a3ee6d6571b33ab)

// Copyright (c) YugaByte, Inc.

//

// 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 YB_MASTER_TASKS_TRACKER_H

#define YB_MASTER_TASKS_TRACKER_H

#include <vector>

#include <boost/circular_buffer.hpp>

#include "yb/server/monitored_task.h"

#include "yb/util/locks.h"

DECLARE_int32(tasks_tracker_num_tasks);

DECLARE_int32(tasks_tracker_keep_time_multiplier);

DECLARE_int32(tasks_tracker_num_long_term_tasks);

DECLARE_int32(long_term_tasks_tracker_keep_time_multiplier);

DECLARE_int32(catalog_manager_bg_task_wait_ms);

namespace yb {

namespace master {

YB_STRONGLY_TYPED_BOOL(IsUserInitiated);

class TasksTracker : public RefCountedThreadSafe<TasksTracker> {

 public:

  explicit TasksTracker(IsUserInitiated user_initiated = IsUserInitiated::kFalse);

  ~TasksTracker() = default;

  std::string ToString();

  // Reset tasks list.

  void Reset();

  // Add task to the tracking list.

  void AddTask(std::shared_ptr<server::MonitoredTask> task);

  // Cleanup old tasks that are older than a specific time.

  void CleanupOldTasks();

  // Retrieve most recent tasks for displaying in master UI.

  std::vector<std::shared_ptr<server::MonitoredTask>> GetTasks();

 private:

  const IsUserInitiated user_initiated_;

  // Lock protecting the buffer.

  mutable rw_spinlock lock_;

  // List of most recent tasks.

  boost::circular_buffer<std::shared_ptr<server::MonitoredTask>> tasks_;

};

} // namespace master

} // namespace yb

#endif // YB_MASTER_TASKS_TRACKER_H