content/child/thread_safe_sender.h

   1 // Copyright (c) 2013 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_THREAD_SAFE_SENDER_H_
   6 #define CONTENT_CHILD_THREAD_SAFE_SENDER_H_
   7
   8 #include "base/gtest_prod_util.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "content/common/content_export.h"
  11 #include "ipc/ipc_sender.h"
  12
  13 namespace base {
  14 class MessageLoopProxy;
  15 }
  16
  17 namespace IPC {
  18 class SyncMessageFilter;
  19 }
  20
  21 namespace content {
  22 class ChildThreadImpl;
  23
  24 // The class of Sender returned by ChildThreadImpl::thread_safe_sender().
  25 class CONTENT_EXPORT ThreadSafeSender
  26     : public IPC::Sender,
  27       public base::RefCountedThreadSafe<ThreadSafeSender> {
  28  public:
  29   bool Send(IPC::Message* msg) override;
  30
  31  protected:
  32   ThreadSafeSender(const scoped_refptr<base::MessageLoopProxy>& main_loop,
  33                    const scoped_refptr<IPC::SyncMessageFilter>& sync_filter);
  34   ~ThreadSafeSender() override;
  35
  36  private:
  37   friend class ChildThreadImpl;  // for construction
  38   friend class IndexedDBDispatcherTest;
  39   friend class WebIDBCursorImplTest;
  40   friend class base::RefCountedThreadSafe<ThreadSafeSender>;
  41
  42   scoped_refptr<base::MessageLoopProxy> main_loop_;
  43   scoped_refptr<IPC::SyncMessageFilter> sync_filter_;
  44
  45   DISALLOW_COPY_AND_ASSIGN(ThreadSafeSender);
  46 };
  47
  48 }  // namespace content
  49
  50 #endif  // CONTENT_CHILD_THREAD_SAFE_SENDER_H_