udp_config.hpp

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/*
 * Copyright 2025 Jinwoo Sung
 *
 * 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 <cstdint>
#include <optional>
#include <string>
 
#include "unilink/base/constants.hpp"
 
namespace unilink {
namespace config {
 
struct UdpConfig {
  std::string local_address = "0.0.0.0";
  uint16_t local_port = 0;
  std::optional<std::string> remote_address;
  std::optional<uint16_t> remote_port;
  size_t backpressure_threshold = common::constants::DEFAULT_BACKPRESSURE_THRESHOLD;
  bool enable_memory_pool = true;
  bool stop_on_callback_exception = false;
 
  bool is_valid() const {
    if (backpressure_threshold < common::constants::MIN_BACKPRESSURE_THRESHOLD ||
        backpressure_threshold > common::constants::MAX_BACKPRESSURE_THRESHOLD) {
      return false;
    }
    if (remote_address.has_value() != remote_port.has_value()) return false;
    if (remote_port && *remote_port == 0) return false;
    return true;
  }
 
  void validate_and_clamp() {
    if (backpressure_threshold < common::constants::MIN_BACKPRESSURE_THRESHOLD) {
      backpressure_threshold = common::constants::MIN_BACKPRESSURE_THRESHOLD;
    } else if (backpressure_threshold > common::constants::MAX_BACKPRESSURE_THRESHOLD) {
      backpressure_threshold = common::constants::MAX_BACKPRESSURE_THRESHOLD;
    }
  }
};
 
}  // namespace config
}  // namespace unilink