1090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson/* 21d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Copyright (C) 2009 The Guava Authors 3090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * 4090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * Licensed under the Apache License, Version 2.0 (the "License"); 5090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * you may not use this file except in compliance with the License. 6090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * You may obtain a copy of the License at 7090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * 8090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 9090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * 10090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * Unless required by applicable law or agreed to in writing, software 11090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 12090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * See the License for the specific language governing permissions and 14090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * limitations under the License. 15090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson */ 16090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson 17090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilsonpackage com.google.common.base; 18090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson 19090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilsonimport com.google.common.annotations.GwtCompatible; 20090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson 21090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson/** 22090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * Methods factored out so that they can be emulated differently in GWT. 23090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * 24090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * @author Jesse Wilson 25090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson */ 26090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson@GwtCompatible(emulated = true) 27090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilsonfinal class Platform { 28090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson private Platform() {} 29090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson 30bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** Returns a thread-local 1024-char array. */ 31bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor static char[] charBufferFromThreadLocal() { 32bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return DEST_TL.get(); 33bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** Calls {@link System#nanoTime()}. */ 361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert static long systemNanoTime() { 371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return System.nanoTime(); 381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 39bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 40bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 41bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * A thread-local destination buffer to keep us from creating new buffers. 42bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * The starting size is 1024 characters. If we grow past this we don't 43bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * put it back in the threadlocal, we just keep going and grow as needed. 44bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 45bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor private static final ThreadLocal<char[]> DEST_TL = new ThreadLocal<char[]>() { 46bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor @Override 47bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor protected char[] initialValue() { 48bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return new char[1024]; 49bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 50bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor }; 51bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 52bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor static CharMatcher precomputeCharMatcher(CharMatcher matcher) { 53bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return matcher.precomputedInternal(); 54bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 55090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson} 56