content/child/webthread_impl.h

   1 // Copyright 2014 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 #ifndef CONTENT_CHILD_WEBTHREAD_IMPL_H_
   6 #define CONTENT_CHILD_WEBTHREAD_IMPL_H_
   7
   8 #include <map>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/threading/thread.h"
  12 #include "content/common/content_export.h"
  13 #include "third_party/WebKit/public/platform/WebThread.h"
  14
  15 namespace content {
  16
  17 class WebThreadBase : public blink::WebThread {
  18  public:
  19   virtual ~WebThreadBase();
  20
  21   virtual void addTaskObserver(TaskObserver* observer);
  22   virtual void removeTaskObserver(TaskObserver* observer);
  23
  24   virtual bool isCurrentThread() const = 0;
  25
  26  protected:
  27   WebThreadBase();
  28
  29  private:
  30   class TaskObserverAdapter;
  31
  32   typedef std::map<TaskObserver*, TaskObserverAdapter*> TaskObserverMap;
  33   TaskObserverMap task_observer_map_;
  34 };
  35
  36 class WebThreadImpl : public WebThreadBase {
  37  public:
  38   CONTENT_EXPORT explicit WebThreadImpl(const char* name);
  39   CONTENT_EXPORT virtual ~WebThreadImpl();
  40
  41   virtual void postTask(Task* task);
  42   virtual void postDelayedTask(Task* task, long long delay_ms);
  43
  44   virtual void enterRunLoop();
  45   virtual void exitRunLoop();
  46
  47   base::MessageLoop* message_loop() const { return thread_->message_loop(); }
  48
  49  private:
  50   virtual bool isCurrentThread() const OVERRIDE;
  51   scoped_ptr<base::Thread> thread_;
  52 };
  53
  54 class WebThreadImplForMessageLoop : public WebThreadBase {
  55  public:
  56   CONTENT_EXPORT explicit WebThreadImplForMessageLoop(
  57       base::MessageLoopProxy* message_loop);
  58   CONTENT_EXPORT virtual ~WebThreadImplForMessageLoop();
  59
  60   virtual void postTask(Task* task);
  61   virtual void postDelayedTask(Task* task, long long delay_ms);
  62
  63   virtual void enterRunLoop();
  64   virtual void exitRunLoop();
  65
  66  private:
  67   virtual bool isCurrentThread() const OVERRIDE;
  68   scoped_refptr<base::MessageLoopProxy> message_loop_;
  69 };
  70
  71 } // namespace content
  72
  73 #endif  // CONTENT_CHILD_WEBTHREAD_IMPL_H_