Bug 756735 - Synchronize accesses to mLoadTasks in Favicons. r=blassey

This commit is contained in:
Brian Nicholson 2012-06-07 17:18:32 -07:00
parent ab5f3dd15f
commit 9aa25b46ec

View File

@ -21,6 +21,7 @@ import java.io.InputStream;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
@ -136,7 +137,7 @@ public class Favicons {
mContext = context;
mDbHelper = new DatabaseHelper(context);
mLoadTasks = new HashMap<Long,LoadFaviconTask>();
mLoadTasks = Collections.synchronizedMap(new HashMap<Long,LoadFaviconTask>());
mNextFaviconLoadId = 0;
}
@ -166,13 +167,17 @@ public class Favicons {
public boolean cancelFaviconLoad(long taskId) {
Log.d(LOGTAG, "Requesting cancelation of favicon load (" + taskId + ")");
if (!mLoadTasks.containsKey(taskId))
return false;
boolean cancelled = false;
synchronized (mLoadTasks) {
if (!mLoadTasks.containsKey(taskId))
return false;
Log.d(LOGTAG, "Cancelling favicon load (" + taskId + ")");
Log.d(LOGTAG, "Cancelling favicon load (" + taskId + ")");
LoadFaviconTask task = mLoadTasks.get(taskId);
return task.cancel(false);
LoadFaviconTask task = mLoadTasks.get(taskId);
cancelled = task.cancel(false);
}
return cancelled;
}
public void clearFavicons() {
@ -184,11 +189,13 @@ public class Favicons {
mDbHelper.close();
// Cancel any pending tasks
Set<Long> taskIds = mLoadTasks.keySet();
Iterator<Long> iter = taskIds.iterator();
while (iter.hasNext()) {
long taskId = iter.next();
cancelFaviconLoad(taskId);
synchronized (mLoadTasks) {
Set<Long> taskIds = mLoadTasks.keySet();
Iterator<Long> iter = taskIds.iterator();
while (iter.hasNext()) {
long taskId = iter.next();
cancelFaviconLoad(taskId);
}
}
}