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 org.agrona.concurrent;
  
  /**
   * When idle this strategy is to sleep for a specified period time in milliseconds.
   * <p>
   * This class uses {@link Thread#sleep(long)} to idle.
   */
  public final class SleepingMillisIdleStrategy implements IdleStrategy
  {
      /**
       * Name to be returned from {@link #alias()}.
       */
      public static final String ALIAS = "sleep-ms";
  
      /**
       * Default sleep period when the default constructor is used.
       */
      public static final long DEFAULT_SLEEP_PERIOD_MS = 1L;
  
      private final long sleepPeriodMs;
  
      /**
       * Default constructor that uses {@link #DEFAULT_SLEEP_PERIOD_MS}.
       */
      public SleepingMillisIdleStrategy()
      {
          sleepPeriodMs = DEFAULT_SLEEP_PERIOD_MS;
      }
  
      /**
       * Constructed a new strategy that will sleep for a given period when idle.
       *
       * @param sleepPeriodMs period in milliseconds for which the strategy will sleep when work count is 0.
       */
      public SleepingMillisIdleStrategy(final long sleepPeriodMs)
      {
          this.sleepPeriodMs = sleepPeriodMs;
      }
  
      /**
       * {@inheritDoc}
       */
      public void idle(final int workCount)
      {
          if (workCount > 0)
          {
              return;
          }
  
          try
          {
              Thread.sleep(sleepPeriodMs);
          }
          catch (final InterruptedException ignore)
          {
              Thread.currentThread().interrupt();
          }
      }
  
      /**
       * {@inheritDoc}
       */
      public void idle()
      {
          try
          {
              Thread.sleep(sleepPeriodMs);
          }
          catch (final InterruptedException ignore)
          {
              Thread.currentThread().interrupt();
          }
      }
  
      /**
       * {@inheritDoc}
       */
      public void reset()
      {
      }
  
      /**
       * {@inheritDoc}
       */
      public String alias()
      {
          return ALIAS;
      }
  
      /**
       * {@inheritDoc}
       */
      public String toString()
      {
          return "SleepingMillisIdleStrategy{" +
              "alias=" + ALIAS +
              ", sleepPeriodMs=" + sleepPeriodMs +
              '}';
      }
  }
  