Switch to a background thread pool

 Bug: 5019676
 Use a shared thread pool
 Eliminate some unnecessary use of AsyncTask (which has extra
 overhead compared to using a thread pool)

Change-Id: I01d6c84816a9c9705216c8fdb8ed8c990265626a

1 files changed, 44 insertions, 0 deletions

diff --git a/src/com/android/browser/BackgroundHandler.java b/src/com/android/browser/BackgroundHandler.java
new file mode 100644
index 000000000..a0d9243e3
--- /dev/null
+++ b/src/com/android/browser/BackgroundHandler.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.browser;
+
+import android.os.HandlerThread;
+import android.os.Looper;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+public class BackgroundHandler {
+
+    static HandlerThread sLooperThread;
+    static ExecutorService mThreadPool;
+
+    static {
+        sLooperThread = new HandlerThread("BackgroundHandler", HandlerThread.MIN_PRIORITY);
+        sLooperThread.start();
+        mThreadPool = Executors.newCachedThreadPool();
+    }
+
+    public static void execute(Runnable runnable) {
+        mThreadPool.execute(runnable);
+    }
+
+    public static Looper getLooper() {
+        return sLooperThread.getLooper();
+    }
+
+    private BackgroundHandler() {}
+}