content/browser/android/java/java_bridge_thread.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/android/java/java_bridge_thread.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "base/task_runner_util.h"
  10
  11 #if !defined(OS_ANDROID)
  12 #error "JavaBridge only supports OS_ANDROID"
  13 #endif
  14
  15 namespace content {
  16
  17 namespace {
  18
  19 base::LazyInstance<JavaBridgeThread> g_background_thread =
  20     LAZY_INSTANCE_INITIALIZER;
  21
  22 }  // namespace
  23
  24 JavaBridgeThread::JavaBridgeThread()
  25     : base::android::JavaHandlerThread("JavaBridge") {
  26   Start();
  27 }
  28
  29 JavaBridgeThread::~JavaBridgeThread() {
  30   Stop();
  31 }
  32
  33 // static
  34 bool JavaBridgeThread::CurrentlyOn() {
  35   return base::MessageLoop::current() ==
  36          g_background_thread.Get().message_loop();
  37 }
  38
  39 // static
  40 base::TaskRunner* JavaBridgeThread::GetTaskRunner() {
  41   return g_background_thread.Get().message_loop()->task_runner().get();
  42 }
  43
  44 }  // namespace content