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.cassandra.service.accord;
  
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.locks.Condition;
  import java.util.concurrent.locks.ReentrantLock;
  import java.util.function.IntFunction;
  
  import accord.api.Agent;
  import accord.utils.QuadFunction;
  import accord.utils.QuintConsumer;
  
  class AccordExecutorSyncSubmit extends AccordExecutorAbstractLockLoop
  {
      private final AccordExecutorLoops loops;
      private final ReentrantLock lock;
      private final Condition hasWork;
  
      public AccordExecutorSyncSubmit(int executorId, Mode mode, String name, Agent agent)
      {
          this(executorId, mode, 1, constant(name), agent);
      }
  
      public AccordExecutorSyncSubmit(int executorId, Mode mode, int threads, IntFunction<String> name, Agent agent)
      {
          this(new ReentrantLock(), executorId, mode, threads, name, agent);
      }
  
      private AccordExecutorSyncSubmit(ReentrantLock lock, int executorId, Mode mode, int threads, IntFunction<String> name, Agent agent)
      {
          super(lock, executorId, agent);
          this.lock = lock;
          this.hasWork = lock.newCondition();
          this.loops = new AccordExecutorLoops(mode, threads, name, this::task);
      }
  
      @Override
      void awaitExclusive() throws InterruptedException
      {
          hasWork.await();
      }
  
      @Override
      AccordExecutorLoops loops()
      {
          return loops;
      }
  
      @Override
      boolean isInLoop()
      {
          return loops.isInLoop();
      }
  
      @Override
      boolean isOwningThread()
      {
          return lock.isHeldByCurrentThread();
      }
  
      @Override
      void notifyWork()
      {
          lock.lock();
          try
          {
              hasWork.signal();
          }
          finally
          {
              lock.unlock();
          }
      }
  
      @Override
      void notifyWorkExclusive()
      {
          hasWork.signal();
      }
  
      <P1s, P1a, P2, P3, P4> void submitExternal(QuintConsumer<AccordExecutor, P1s, P2, P3, P4> sync, QuadFunction<P1a, P2, P3, P4, Submittable> async, P1s p1s, P1a p1a, P2 p2, P3 p3, P4 p4)
      {
          lock.lock();
          try
          {
              submitExternalExclusive(sync, async, p1s, p1a, p2, p3, p4);
          }
          finally
          {
              lock.unlock();
          }
      }
  
      @Override
      public boolean isTerminated()
      {
          return loops.isTerminated();
      }
  
      @Override
      public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException
      {
          return loops.awaitTermination(timeout, unit);
      }
  }
  