/**
* 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.hadoop.hive.llap.cache;
import org.apache.hadoop.hive.llap.cache.LowLevelCache.Priority;
public interface LowLevelCachePolicy extends LlapOomDebugDump {
void cache(LlapCacheableBuffer buffer, Priority priority);
void notifyLock(LlapCacheableBuffer buffer);
void notifyUnlock(LlapCacheableBuffer buffer);
long evictSomeBlocks(long memoryToReserve);
void setEvictionListener(EvictionListener listener);
void setParentDebugDumper(LlapOomDebugDump dumper);
/** TODO: temporary method until we have a better allocator */
long tryEvictContiguousData(int allocationSize, int count);
}