| /* |
| * 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 System; |
| |
| namespace Lucene.Net.Index |
| { |
| |
| sealed class CharBlockPool |
| { |
| private void InitBlock() |
| { |
| charUpto = DocumentsWriter.CHAR_BLOCK_SIZE; |
| } |
| |
| public char[][] buffers = new char[10][]; |
| internal int numBuffer; |
| |
| internal int bufferUpto = - 1; // Which buffer we are upto |
| public int charUpto; // Where we are in head buffer |
| |
| public char[] buffer; // Current head buffer |
| public int charOffset = - DocumentsWriter.CHAR_BLOCK_SIZE; // Current head offset |
| private readonly DocumentsWriter docWriter; |
| |
| public CharBlockPool(DocumentsWriter docWriter) |
| { |
| InitBlock(); |
| this.docWriter = docWriter; |
| } |
| |
| public void Reset() |
| { |
| docWriter.RecycleCharBlocks(buffers, 1 + bufferUpto); |
| bufferUpto = - 1; |
| charUpto = DocumentsWriter.CHAR_BLOCK_SIZE; |
| charOffset = - DocumentsWriter.CHAR_BLOCK_SIZE; |
| } |
| |
| public void NextBuffer() |
| { |
| if (1 + bufferUpto == buffers.Length) |
| { |
| var newBuffers = new char[(int) (buffers.Length * 1.5)][]; |
| Array.Copy(buffers, 0, newBuffers, 0, buffers.Length); |
| buffers = newBuffers; |
| } |
| buffer = buffers[1 + bufferUpto] = docWriter.GetCharBlock(); |
| bufferUpto++; |
| |
| charUpto = 0; |
| charOffset += DocumentsWriter.CHAR_BLOCK_SIZE; |
| } |
| } |
| } |