content: /*
   * Copyright (C) 2020 ActiveJ LLC.
   *
   * Licensed 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 io.activej.bytebuf;
  
  public final class ThreadLocalCharArray {
  	private ThreadLocalCharArray() {
  	}
  
  	private static final ThreadLocal<char[]> THREAD_LOCAL = ThreadLocal.withInitial(() -> new char[0]);
  
  	public static char[] ensure(int size) {
  		char[] chars = THREAD_LOCAL.get();
  		if (chars.length >= size) return chars;
  		chars = new char[size + (size >>> 2)];
  		THREAD_LOCAL.set(chars);
  		return chars;
  	}
  
  	public static char[] ensure(char[] providedBuffer, int size) {
  		if (providedBuffer.length >= size) return providedBuffer;
  		return ensure(size);
  	}
  }
  