content: /*
   * Copyright 2014-2025 Real Logic Limited.
   *
   * 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
   *
   * https://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.
   */
  package io.aeron.driver;
  
  import org.agrona.BitUtil;
  
  import static java.lang.System.getProperty;
  
  /**
   * {@inheritDoc}.
   *
   * @deprecated Use {@link TaggedMulticastFlowControl} instead
   */
  @Deprecated
  public class PreferredMulticastFlowControl extends TaggedMulticastFlowControl
  {
      /**
       * Property name used to set Application Specific Feedback (ASF) in Status Messages to identify preferred receivers.
       * <p>
       * Replaced by {@link Configuration#RECEIVER_GROUP_TAG_PROP_NAME}.
       */
      public static final String PREFERRED_ASF_PROP_NAME = "aeron.PreferredMulticastFlowControl.asf";
  
      /**
       * Default Application Specific Feedback (ASF) value.
       */
      public static final String PREFERRED_ASF_DEFAULT = "FFFFFFFFFFFFFFFF";
  
      static final String PREFERRED_ASF = getProperty(PREFERRED_ASF_PROP_NAME, PREFERRED_ASF_DEFAULT);
      static final byte[] PREFERRED_ASF_BYTES = BitUtil.fromHex(PREFERRED_ASF);
  }
  