signal_emitter.hpp

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: LicenseRef-NvidiaProprietary
 *
 * NVIDIA CORPORATION, its affiliates and licensors retain all intellectual
 * property and proprietary rights in and to this material, related
 * documentation and any modifications thereto. Any use, reproduction,
 * disclosure or distribution of this material and related documentation
 * without an express license agreement from NVIDIA CORPORATION or
 * its affiliates is strictly prohibited.
 */
 
#ifndef NVIDIA_DEEPSTREAM_SIGNAL_EMITTER
#define NVIDIA_DEEPSTREAM_SIGNAL_EMITTER
 
#include <memory>
#include "custom_object.hpp"
 
namespace deepstream {
 
class Element;
 
class SignalEmitter : public CustomObject {
public:
  class IActionOwner {
   public:
    virtual ~IActionOwner() {}
 
    virtual std::vector<std::string> list() = 0;
 
    virtual void onAttached(SignalEmitter* emitter, const std::string& action, const std::string& object) = 0;
  };
 
  SignalEmitter(const std::string& name, IActionOwner* owner);
 
  SignalEmitter(const std::string& name, const char* factory, IActionOwner* owner);
 
  virtual ~SignalEmitter();
 
  static unsigned long type();
 
  SignalEmitter& attach(const std::string& action_name, Object& object);
  SignalEmitter& emit(const std::string& action_name, const std::string& object_name, ...);
 
protected:
  std::multimap<std::string, Object> object_map_;
  std::unique_ptr<IActionOwner> owner_;
};
 
}
 
 
#endif