service-maker/includes/source_manager.hpp

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 *
 * 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 NVIDIA_DEEPSTREAM_SOURCE_MANAGER
#define NVIDIA_DEEPSTREAM_SOURCE_MANAGER
 
#include "signal_emitter.hpp"
#include <mutex>
namespace deepstream {
 
class DefaultActionOwner : public SignalEmitter::IActionOwner {
public:
  std::vector<std::string> list() override {
    std::vector<std::string> actions = {"add-source", "remove-source", "terminate"};
    return actions;
  }
 
  void onAttached(SignalEmitter* emitter, const std::string& action, const std::string& object) override {
    object_ = object;
    return;
  }
 
  std::string getObject() {
    return object_;
  }
 
protected:
  std::string object_;
};
 
class SourceManager : public SignalEmitter {
public:
  SourceManager(const std::string& name)
          : SignalEmitter(name, new DefaultActionOwner()) {}
 
  int addSource(const std::string& source_name);
 
  void removeSource(int source_id);
 
  void terminate();
 
 protected:
  static int gen_number_;
  static std::mutex gen_number_mutex_;
};;
 
} // namespace deepstream
 
#endif