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| 1 // Copyright 2016 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 EXTENSIONS_RENDERER_WORKER_THREAD_DISPATCHER_H_ |
| 6 #define EXTENSIONS_RENDERER_WORKER_THREAD_DISPATCHER_H_ |
| 7 |
| 8 #include "base/synchronization/lock.h" |
| 9 #include "content/public/renderer/render_thread_observer.h" |
| 10 #include "ipc/ipc_sync_message_filter.h" |
| 11 |
| 12 namespace base { |
| 13 class ListValue; |
| 14 } |
| 15 |
| 16 namespace content { |
| 17 class RenderThread; |
| 18 } |
| 19 |
| 20 namespace extensions { |
| 21 class RequestSender; |
| 22 class V8SchemaRegistry; |
| 23 |
| 24 // Sends and receives IPC in an extension Service Worker. |
| 25 // TODO(lazyboy): This class should really be a combination of the following |
| 26 // two: |
| 27 // 1) A content::WorkerThreadMessageFilter, so that we can receive IPC directly |
| 28 // on worker thread. |
| 29 // 2) A content::ThreadSafeSender, so we can safely send IPC from worker thread. |
| 30 class WorkerThreadDispatcher : public content::RenderThreadObserver { |
| 31 public: |
| 32 WorkerThreadDispatcher(); |
| 33 ~WorkerThreadDispatcher() override; |
| 34 |
| 35 // Thread safe. |
| 36 static WorkerThreadDispatcher* Get(); |
| 37 static RequestSender* GetRequestSender(); |
| 38 |
| 39 void Init(content::RenderThread* render_thread); |
| 40 bool Send(IPC::Message* message); |
| 41 void AddWorkerData(int embedded_worker_id); |
| 42 void RemoveWorkerData(int embedded_worker_id); |
| 43 V8SchemaRegistry* GetV8SchemaRegistry(); |
| 44 |
| 45 private: |
| 46 // content::RenderThreadObserver: |
| 47 bool OnControlMessageReceived(const IPC::Message& message) override; |
| 48 |
| 49 // IPC handlers. |
| 50 void OnResponseWorker(int worker_thread_id, |
| 51 int request_id, |
| 52 bool succeeded, |
| 53 const base::ListValue& response, |
| 54 const std::string& error); |
| 55 |
| 56 // IPC sender. Belongs to the render thread, but thread safe. |
| 57 scoped_refptr<IPC::SyncMessageFilter> message_filter_; |
| 58 |
| 59 DISALLOW_COPY_AND_ASSIGN(WorkerThreadDispatcher); |
| 60 }; |
| 61 |
| 62 } // namespace extensions |
| 63 |
| 64 #endif // EXTENSIONS_RENDERER_WORKER_THREAD_DISPATCHER_H_ |
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