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.spark.memory;
  
  import java.io.IOException;
  
  public class TestMemoryConsumer extends MemoryConsumer {
    public TestMemoryConsumer(TaskMemoryManager memoryManager, MemoryMode mode) {
      super(memoryManager, 1024L, mode);
    }
    public TestMemoryConsumer(TaskMemoryManager memoryManager) {
      this(memoryManager, MemoryMode.ON_HEAP);
    }
  
    @Override
    public long spill(long size, MemoryConsumer trigger) throws IOException {
      long used = getUsed();
      free(used);
      return used;
    }
  
    void use(long size) {
      long got = taskMemoryManager.acquireExecutionMemory(size, this);
      used += got;
    }
  
    void free(long size) {
      used -= size;
      taskMemoryManager.releaseExecutionMemory(size, this);
    }
  }
  
  
  