Merge "Stop holding mProxyLock while downloading PAC script data."

 */

package com.android.server.connectivity;

import android.annotation.WorkerThread;

import android.app.AlarmManager;

import android.app.PendingIntent;

import android.content.BroadcastReceiver;

    public static final String KEY_PROXY = "keyProxy";

    private String mCurrentPac;

    @GuardedBy("mProxyLock")

    private Uri mPacUrl = Uri.EMPTY;

    private volatile Uri mPacUrl = Uri.EMPTY;

    private AlarmManager mAlarmManager;

    @GuardedBy("mProxyLock")

    private int mCurrentDelay;

    private int mLastPort;

    private boolean mHasSentBroadcast;

    private boolean mHasDownloaded;

    private volatile boolean mHasSentBroadcast;

    private volatile boolean mHasDownloaded;

    private Handler mConnectivityHandler;

    private int mProxyMessage;

    /**

     * Used for locking when setting mProxyService and all references to mPacUrl or mCurrentPac.

     * Used for locking when setting mProxyService and all references to mCurrentPac.

     */

    private final Object mProxyLock = new Object();

    /**

     * Runnable to download PAC script.

     * The behavior relies on the assamption it always run on mNetThread to guarantee that the

     * latest data fetched from mPacUrl is stored in mProxyService.

     */

    private Runnable mPacDownloader = new Runnable() {

        @Override

        @WorkerThread

        public void run() {

            String file;

            synchronized (mProxyLock) {

                if (Uri.EMPTY.equals(mPacUrl)) return;

                final int oldTag = TrafficStats

                        .getAndSetThreadStatsTag(TrafficStats.TAG_SYSTEM_PAC);

            final Uri pacUrl = mPacUrl;

            if (Uri.EMPTY.equals(pacUrl)) return;

            final int oldTag = TrafficStats.getAndSetThreadStatsTag(TrafficStats.TAG_SYSTEM_PAC);

            try {

                    file = get(mPacUrl);

                file = get(pacUrl);

            } catch (IOException ioe) {

                file = null;

                Log.w(TAG, "Failed to load PAC file: " + ioe);

            } finally {

                TrafficStats.setThreadStatsTag(oldTag);

            }

            }

            if (file != null) {

                synchronized (mProxyLock) {

                    if (!file.equals(mCurrentPac)) {

                // Allow to send broadcast, nothing to do.

                return false;

            }

            synchronized (mProxyLock) {

            mPacUrl = proxy.getPacFileUrl();

            }

            mCurrentDelay = DELAY_1;

            mHasSentBroadcast = false;

            mHasDownloaded = false;