blob: af7fa3be4c123cc794f3c944f1fd536685201ce6
| 1 | package com.amlogic.pppoe; |
| 2 | |
| 3 | import android.util.Log; |
| 4 | import android.os.Handler; |
| 5 | import android.os.Looper; |
| 6 | import android.os.Message; |
| 7 | import android.os.MessageQueue; |
| 8 | |
| 9 | import java.util.LinkedList; |
| 10 | |
| 11 | public class LooperThread extends Thread { |
| 12 | private static final String TAG = "LooperThread"; |
| 13 | private LinkedList<RunnableImpl> mQueue = new LinkedList(); |
| 14 | private Impl mHandler = null; |
| 15 | private Looper mLooper = null; |
| 16 | |
| 17 | public LooperThread() { |
| 18 | setName("PPPOE.LooperThread"); |
| 19 | } |
| 20 | |
| 21 | public void run() { |
| 22 | mLooper = Looper.myLooper(); |
| 23 | Looper.prepare(); |
| 24 | mHandler = new Impl(); |
| 25 | Looper.loop(); |
| 26 | } |
| 27 | |
| 28 | public void post(RunnableImpl runnableimpl) { |
| 29 | if(runnableimpl == null) { |
| 30 | Log.w(TAG, "post runnableimpl is null!"); |
| 31 | return; |
| 32 | } |
| 33 | synchronized (mQueue) { |
| 34 | mQueue.add(runnableimpl); |
| 35 | if (mQueue.size() == 1) { |
| 36 | scheduleNextLocked(); |
| 37 | } |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | public RunnableImpl getLast() { |
| 42 | synchronized (mQueue) { |
| 43 | if (mQueue.size() > 0) { |
| 44 | return mQueue.getLast(); |
| 45 | } |
| 46 | else { |
| 47 | return null; |
| 48 | } |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | public void cancelRunnable(RunnableImpl runnableimpl) { |
| 53 | synchronized (mQueue) { |
| 54 | while (mQueue.remove(runnableimpl)) { } |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | public void cancel() { |
| 59 | synchronized (mQueue) { |
| 60 | mQueue.clear(); |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | private void scheduleNextLocked() { |
| 65 | if (mQueue.size() > 0) { |
| 66 | if(mHandler == null) { |
| 67 | Log.w(TAG, "scheduleNextLocked, mHandler is null!"); |
| 68 | return; |
| 69 | } |
| 70 | mHandler.sendEmptyMessage(1); |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | public void stopThread(){ |
| 75 | if (null != mLooper){ |
| 76 | mLooper.quit(); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | private class Impl extends Handler { |
| 81 | public void handleMessage(Message msg) { |
| 82 | RunnableImpl r; |
| 83 | synchronized (mQueue) { |
| 84 | if (mQueue.size() == 0) { |
| 85 | Log.w(TAG, "mQueue is empty, don't do nothing!"); |
| 86 | return; |
| 87 | } |
| 88 | r = mQueue.removeFirst(); |
| 89 | } |
| 90 | if((r != null) && (r.mRunnable != null)) |
| 91 | r.mRunnable.run(); |
| 92 | synchronized (mQueue) { |
| 93 | scheduleNextLocked(); |
| 94 | } |
| 95 | } |
| 96 | } |
| 97 | } |
| 98 |