modules/core/src/main/java/org/apache/ignite/mem/MemoryAllocator.java

/*
 * 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.ignite.mem;

/**
 * Base interface for offheap memory allocator.
 */
public interface MemoryAllocator {
    /**
     * @param size Size of allocated memory.
     *
     * @return Pointer to memory or {@code 0} if failed.
     */
    public long allocateMemory(long size);

    /**
     * Deallocates memory.
     *
     * @param addr Address of memory.
     */
    public void freeMemory(long addr);
}