1 /* 2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.glass.ui.ios; 27 28 import com.sun.glass.ui.Timer; 29 30 /** 31 * iOS platform implementation class for Timer. 32 */ 33 final class IosTimer extends Timer implements Runnable { 34 private Thread timerThread; 35 private Runnable timerRunnable; 36 private long timerPeriod; 37 38 protected IosTimer(Runnable runnable) { 39 super(runnable); 40 } 41 42 @Override native protected long _start(Runnable runnable); 43 44 native protected void _stopVsyncTimer(long timer); 45 46 @Override 47 protected long _start(Runnable runnable, int period) { 48 timerThread = new Thread(this); 49 timerRunnable = runnable; 50 timerPeriod = period; 51 timerThread.start(); 52 return timerThread.hashCode(); 53 } 54 55 @Override 56 protected void _stop(long timer) { 57 if (timerThread != null ) { 58 Thread t = timerThread; 59 timerThread = null; 60 try { 61 t.join(); 62 } catch (InterruptedException e) { } 63 } else { 64 _stopVsyncTimer(timer); 65 } 66 } 67 68 static int getMinPeriod_impl() { 69 return 0; 70 } 71 72 static int getMaxPeriod_impl() { 73 return 1000000; 74 } 75 76 /** 77 * inheritDoc 78 */ 79 @Override 80 public void run() { 81 Thread t = Thread.currentThread(); 82 long start; 83 long sleepTime; 84 while (t == timerThread) { 85 start = System.currentTimeMillis(); 86 timerRunnable.run(); 87 sleepTime = timerPeriod - (System.currentTimeMillis() - start); 88 if (sleepTime > 0) { 89 try { 90 Thread.sleep(sleepTime); 91 } catch (InterruptedException e) { } 92 } 93 } 94 } 95 } 96