/*
 * Copyright (c) Meta Platforms, Inc. and 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.
 */

#ifndef THRIFT_TEST_LOADGEN_WORKERIF_H_
#define THRIFT_TEST_LOADGEN_WORKERIF_H_ 1

#include <memory>

#include <thrift/lib/cpp/test/loadgen/IntervalTimer.h>

namespace apache {
namespace thrift {
namespace loadgen {

class ScoreBoard;

/**
 * Interface class for all Worker types to inherit from
 *
 * If you are implementing a new load generator, you generally should derive
 * from Worker<YourClientType> instead of using WorkerIf directly.  WorkerIf
 * only exists to provide a common base class for all Worker template
 * instantiations.
 */
class WorkerIf {
 public:
  virtual ~WorkerIf() {}

  /**
   * Run the worker
   */
  virtual void run() = 0;

  /**
   * Determine if this worker is still running.
   *
   * Returns false if this worker's run() function has returned.
   */
  virtual bool isAlive() const = 0;
};

/**
 * WorkerFactory
 */
class WorkerFactory {
 public:
  virtual ~WorkerFactory() {}

  virtual WorkerIf* newWorker(
      int id, const std::shared_ptr<ScoreBoard>& sb, IntervalTimer* itimer) = 0;
};

} // namespace loadgen
} // namespace thrift
} // namespace apache

#endif // THRIFT_TEST_LOADGEN_WORKERIF_H_
