The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.net.http; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.os.SystemClock; |
| 21 | |
| 22 | import org.apache.http.HttpHost; |
| 23 | |
| 24 | import java.lang.Thread; |
| 25 | |
| 26 | /** |
| 27 | * {@hide} |
| 28 | */ |
| 29 | class ConnectionThread extends Thread { |
| 30 | |
| 31 | static final int WAIT_TIMEOUT = 5000; |
| 32 | static final int WAIT_TICK = 1000; |
| 33 | |
| 34 | // Performance probe |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 35 | long mCurrentThreadTime; |
Grace Kloba | 340a1b2 | 2009-07-02 15:30:34 -0700 | [diff] [blame] | 36 | long mTotalThreadTime; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 37 | |
| 38 | private boolean mWaiting; |
| 39 | private volatile boolean mRunning = true; |
| 40 | private Context mContext; |
| 41 | private RequestQueue.ConnectionManager mConnectionManager; |
| 42 | private RequestFeeder mRequestFeeder; |
| 43 | |
| 44 | private int mId; |
| 45 | Connection mConnection; |
| 46 | |
| 47 | ConnectionThread(Context context, |
| 48 | int id, |
| 49 | RequestQueue.ConnectionManager connectionManager, |
| 50 | RequestFeeder requestFeeder) { |
| 51 | super(); |
| 52 | mContext = context; |
| 53 | setName("http" + id); |
| 54 | mId = id; |
| 55 | mConnectionManager = connectionManager; |
| 56 | mRequestFeeder = requestFeeder; |
| 57 | } |
| 58 | |
| 59 | void requestStop() { |
| 60 | synchronized (mRequestFeeder) { |
| 61 | mRunning = false; |
| 62 | mRequestFeeder.notify(); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * Loop until app shutdown. Runs connections in priority |
| 68 | * order. |
| 69 | */ |
| 70 | public void run() { |
| 71 | android.os.Process.setThreadPriority( |
Patrick Scott | 4a06b68 | 2009-07-20 08:55:06 -0400 | [diff] [blame] | 72 | android.os.Process.THREAD_PRIORITY_DEFAULT + |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 73 | android.os.Process.THREAD_PRIORITY_LESS_FAVORABLE); |
| 74 | |
Grace Kloba | 340a1b2 | 2009-07-02 15:30:34 -0700 | [diff] [blame] | 75 | // these are used to get performance data. When it is not in the timing, |
| 76 | // mCurrentThreadTime is 0. When it starts timing, mCurrentThreadTime is |
| 77 | // first set to -1, it will be set to the current thread time when the |
| 78 | // next request starts. |
| 79 | mCurrentThreadTime = 0; |
| 80 | mTotalThreadTime = 0; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 81 | |
| 82 | while (mRunning) { |
Grace Kloba | 340a1b2 | 2009-07-02 15:30:34 -0700 | [diff] [blame] | 83 | if (mCurrentThreadTime == -1) { |
| 84 | mCurrentThreadTime = SystemClock.currentThreadTimeMillis(); |
| 85 | } |
| 86 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 87 | Request request; |
| 88 | |
| 89 | /* Get a request to process */ |
| 90 | request = mRequestFeeder.getRequest(); |
| 91 | |
| 92 | /* wait for work */ |
| 93 | if (request == null) { |
| 94 | synchronized(mRequestFeeder) { |
| 95 | if (HttpLog.LOGV) HttpLog.v("ConnectionThread: Waiting for work"); |
| 96 | mWaiting = true; |
| 97 | try { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 98 | mRequestFeeder.wait(); |
| 99 | } catch (InterruptedException e) { |
| 100 | } |
| 101 | mWaiting = false; |
Grace Kloba | 340a1b2 | 2009-07-02 15:30:34 -0700 | [diff] [blame] | 102 | if (mCurrentThreadTime != 0) { |
| 103 | mCurrentThreadTime = SystemClock |
| 104 | .currentThreadTimeMillis(); |
| 105 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 106 | } |
| 107 | } else { |
| 108 | if (HttpLog.LOGV) HttpLog.v("ConnectionThread: new request " + |
| 109 | request.mHost + " " + request ); |
| 110 | |
Patrick Scott | 86806ce1 | 2009-10-01 15:54:46 -0400 | [diff] [blame] | 111 | mConnection = mConnectionManager.getConnection(mContext, |
| 112 | request.mHost); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 113 | mConnection.processRequests(request); |
| 114 | if (mConnection.getCanPersist()) { |
Patrick Scott | 86806ce1 | 2009-10-01 15:54:46 -0400 | [diff] [blame] | 115 | if (!mConnectionManager.recycleConnection(mConnection)) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 116 | mConnection.closeConnection(); |
| 117 | } |
| 118 | } else { |
| 119 | mConnection.closeConnection(); |
| 120 | } |
| 121 | mConnection = null; |
Grace Kloba | 340a1b2 | 2009-07-02 15:30:34 -0700 | [diff] [blame] | 122 | |
| 123 | if (mCurrentThreadTime > 0) { |
| 124 | long start = mCurrentThreadTime; |
| 125 | mCurrentThreadTime = SystemClock.currentThreadTimeMillis(); |
| 126 | mTotalThreadTime += mCurrentThreadTime - start; |
| 127 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 128 | } |
| 129 | |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | public synchronized String toString() { |
| 134 | String con = mConnection == null ? "" : mConnection.toString(); |
| 135 | String active = mWaiting ? "w" : "a"; |
| 136 | return "cid " + mId + " " + active + " " + con; |
| 137 | } |
| 138 | |
| 139 | } |