content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.
   */
  
  package org.apache.bifromq.basekv.store.range;
  
  import com.google.common.util.concurrent.RateLimiter;
  
  final class SnapshotBandwidthGovernor {
      private final RateLimiter rateLimiter;
  
      SnapshotBandwidthGovernor(long bytesPerSec) {
          rateLimiter = bytesPerSec > 0 ? RateLimiter.create(bytesPerSec) : null;
      }
  
      void acquire(int bytes) {
          if (rateLimiter == null || bytes <= 0) {
              return;
          }
          rateLimiter.acquire(bytes);
      }
  }
  