content/renderer/service_worker/embedded_worker_dispatcher.h

   1 // Copyright 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_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_DISPATCHER_H_
   6 #define CONTENT_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_DISPATCHER_H_
   7
   8 #include <map>
   9
  10 #include "base/basictypes.h"
  11 #include "base/id_map.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/time/time.h"
  14 #include "ipc/ipc_listener.h"
  15
  16 struct EmbeddedWorkerMsg_StartWorker_Params;
  17 class GURL;
  18
  19 namespace content {
  20
  21 // A tiny dispatcher which handles embedded worker start/stop messages.
  22 class EmbeddedWorkerDispatcher : public IPC::Listener {
  23  public:
  24   EmbeddedWorkerDispatcher();
  25   ~EmbeddedWorkerDispatcher() override;
  26
  27   // IPC::Listener overrides.
  28   bool OnMessageReceived(const IPC::Message& message) override;
  29
  30   void WorkerContextDestroyed(int embedded_worker_id);
  31
  32  private:
  33   class WorkerWrapper;
  34
  35   void OnStartWorker(const EmbeddedWorkerMsg_StartWorker_Params& params);
  36   void OnStopWorker(int embedded_worker_id);
  37
  38   IDMap<WorkerWrapper, IDMapOwnPointer> workers_;
  39   std::map<int /* embedded_worker_id */, base::TimeTicks> stop_worker_times_;
  40   base::WeakPtrFactory<EmbeddedWorkerDispatcher> weak_factory_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(EmbeddedWorkerDispatcher);
  43 };
  44
  45 }  // namespace content
  46
  47 #endif  // CONTENT_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_DISPATCHER_H_