Program Listing for File operator_wrapper.hpp

            

            
/*
* SPDX-FileCopyrightText: Copyright (c) 2022-2025 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 GXF_HOLOSCAN_WRAPPER_OPERATOR_WRAPPER_HPP
#define GXF_HOLOSCAN_WRAPPER_OPERATOR_WRAPPER_HPP

#include <list>
#include <memory>

#include "fragment_wrapper.hpp"
#include "holoscan/core/gxf/gxf_execution_context.hpp"
#include "holoscan/core/io_context.hpp"
#include "holoscan/core/operator.hpp"
#include "holoscan/core/parameter.hpp"

#include "gxf/core/parameter_parser_std.hpp"
#include "gxf/std/codelet.hpp"

// Include the utilities for parameter handling
#include "parameter_utils.hpp"

namespace holoscan::gxf {

class OperatorWrapper : public nvidia::gxf::Codelet {
 public:
  OperatorWrapper();
  virtual ~OperatorWrapper() = default;

  virtual const char* holoscan_typename() const = 0;

  gxf_result_t initialize() override;
  gxf_result_t deinitialize() override;

  gxf_result_t registerInterface(nvidia::gxf::Registrar* registrar) override;

  gxf_result_t start() override;
  gxf_result_t tick() override;
  gxf_result_t stop() override;

  bool is_metadata_enabled() { return op_ ? op_->is_metadata_enabled() : false; }

 protected:
  std::shared_ptr<Operator> op_;
  FragmentWrapper fragment_;
  std::list<std::shared_ptr<CommonGXFParameter>>
      parameters_;

 private:
  std::unique_ptr<GXFExecutionContext> exec_context_{};
  InputContext* op_input_{};
  OutputContext* op_output_{};
};

}  // namespace holoscan::gxf

#endif/* GXF_HOLOSCAN_WRAPPER_OPERATOR_WRAPPER_HPP */