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/*
 * Copyright (c) 2021 Cisco and/or its affiliates.
 * 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 <hicn/transport/utils/singleton.h>
#include <hicn/transport/utils/thread_pool.h>

#include <atomic>
#include <mutex>

namespace transport {
namespace core {

class GlobalWorkers : public utils::Singleton<GlobalWorkers> {
 public:
  friend class utils::Singleton<GlobalWorkers>;

  ::utils::EventThread& getWorker() {
    return thread_pool_.getWorker(counter_++ % thread_pool_.getNThreads());
  }

  auto& getWorkers() { return thread_pool_.getWorkers(); }

 private:
  GlobalWorkers() : counter_(0), thread_pool_() {}

  std::atomic_uint16_t counter_;
  ::utils::ThreadPool thread_pool_;
};

}  // namespace core
}  // namespace transport