DirectMemoryRegion.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.internal.mem;

/**
 * Interface for a direct memory region allocated by provider.
 */
public interface DirectMemoryRegion {
    /**
     * @return Region start address.
     */
    public long address();

    /**
     * @return Region size.
     */
    public long size();

    /**
     * Gets a sub-region of this region starting from the given offset.
     *
     * @param offset Offset within this region.
     * @return Sub-region.
     */
    public DirectMemoryRegion slice(long offset);
}