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/macros.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 SingleThreadTaskRunner; 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( 33 const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner, 34 const scoped_refptr<IPC::SyncMessageFilter>& sync_filter); 35 ~ThreadSafeSender() override; 36 37 private: 38 friend class ChildThreadImpl; // for construction 39 friend class IndexedDBDispatcherTest; 40 friend class WebIDBCursorImplTest; 41 friend class base::RefCountedThreadSafe<ThreadSafeSender>; 42 43 scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_; 44 scoped_refptr<IPC::SyncMessageFilter> sync_filter_; 45 46 DISALLOW_COPY_AND_ASSIGN(ThreadSafeSender); 47 }; 48 49 } // namespace content 50 51 #endif // CONTENT_CHILD_THREAD_SAFE_SENDER_H_ 52