| using System; |
| |
| namespace Lucene.Net.Index |
| { |
| /* |
| * 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. |
| */ |
| |
| using ArrayUtil = Lucene.Net.Util.ArrayUtil; |
| using RamUsageEstimator = Lucene.Net.Util.RamUsageEstimator; |
| |
| internal class ParallelPostingsArray |
| { |
| internal const int BYTES_PER_POSTING = 3 * RamUsageEstimator.NUM_BYTES_INT32; |
| |
| internal readonly int size; |
| internal readonly int[] textStarts; |
| internal readonly int[] intStarts; |
| internal readonly int[] byteStarts; |
| |
| internal ParallelPostingsArray(int size) |
| { |
| this.size = size; |
| textStarts = new int[size]; |
| intStarts = new int[size]; |
| byteStarts = new int[size]; |
| } |
| |
| internal virtual int BytesPerPosting() |
| { |
| return BYTES_PER_POSTING; |
| } |
| |
| internal virtual ParallelPostingsArray NewInstance(int size) |
| { |
| return new ParallelPostingsArray(size); |
| } |
| |
| internal ParallelPostingsArray Grow() |
| { |
| int newSize = ArrayUtil.Oversize(size + 1, BytesPerPosting()); |
| ParallelPostingsArray newArray = NewInstance(newSize); |
| CopyTo(newArray, size); |
| return newArray; |
| } |
| |
| internal virtual void CopyTo(ParallelPostingsArray toArray, int numToCopy) |
| { |
| Array.Copy(textStarts, 0, toArray.textStarts, 0, numToCopy); |
| Array.Copy(intStarts, 0, toArray.intStarts, 0, numToCopy); |
| Array.Copy(byteStarts, 0, toArray.byteStarts, 0, numToCopy); |
| } |
| } |
| } |