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| 1 // Copyright (c) 2012 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_BROWSER_WORKER_HOST_WORKER_SERVICE_H_ | |
| 6 #define CONTENT_BROWSER_WORKER_HOST_WORKER_SERVICE_H_ | |
| 7 | |
| 8 #include "base/basictypes.h" | |
| 9 #include "base/compiler_specific.h" | |
| 10 #include "base/memory/singleton.h" | |
| 11 #include "base/observer_list.h" | |
| 12 #include "base/threading/non_thread_safe.h" | |
| 13 #include "content/browser/worker_host/worker_process_host.h" | |
| 14 #include "content/public/browser/notification_observer.h" | |
| 15 #include "content/public/browser/notification_registrar.h" | |
| 16 #include "content/public/browser/worker_service.h" | |
| 17 | |
| 18 class GURL; | |
| 19 struct ViewHostMsg_CreateWorker_Params; | |
| 20 | |
| 21 namespace content { | |
| 22 class ResourceContext; | |
| 23 class WorkerServiceObserver; | |
| 24 class WorkerStoragePartition; | |
| 25 class WorkerPrioritySetter; | |
| 26 | |
| 27 class CONTENT_EXPORT WorkerServiceImpl | |
| 28 : public NON_EXPORTED_BASE(WorkerService) { | |
| 29 public: | |
| 30 // Returns the WorkerServiceImpl singleton. | |
| 31 static WorkerServiceImpl* GetInstance(); | |
| 32 | |
| 33 // Releases the priority setter to avoid memory leak error. | |
| 34 void PerformTeardownForTesting(); | |
| 35 | |
| 36 // WorkerService implementation: | |
| 37 virtual bool TerminateWorker(int process_id, int route_id) OVERRIDE; | |
| 38 virtual std::vector<WorkerInfo> GetWorkers() OVERRIDE; | |
| 39 virtual void AddObserver(WorkerServiceObserver* observer) OVERRIDE; | |
| 40 virtual void RemoveObserver(WorkerServiceObserver* observer) OVERRIDE; | |
| 41 | |
| 42 // These methods correspond to worker related IPCs. | |
| 43 void CreateWorker(const ViewHostMsg_CreateWorker_Params& params, | |
| 44 int route_id, | |
| 45 WorkerMessageFilter* filter, | |
| 46 ResourceContext* resource_context, | |
| 47 const WorkerStoragePartition& worker_partition, | |
| 48 bool* url_mismatch); | |
| 49 void ForwardToWorker(const IPC::Message& message, | |
| 50 WorkerMessageFilter* filter); | |
| 51 void DocumentDetached(unsigned long long document_id, | |
| 52 WorkerMessageFilter* filter); | |
| 53 | |
| 54 void OnWorkerMessageFilterClosing(WorkerMessageFilter* filter); | |
| 55 | |
| 56 int next_worker_route_id() { return ++next_worker_route_id_; } | |
| 57 | |
| 58 // Given a worker's process id, return the IDs of the renderer process and | |
| 59 // render frame that created it. For shared workers, this returns the first | |
| 60 // parent. | |
| 61 // TODO(dimich): This code assumes there is 1 worker per worker process, which | |
| 62 // is how it is today until V8 can run in separate threads. | |
| 63 bool GetRendererForWorker(int worker_process_id, | |
| 64 int* render_process_id, | |
| 65 int* render_frame_id) const; | |
| 66 const WorkerProcessHost::WorkerInstance* FindWorkerInstance( | |
| 67 int worker_process_id); | |
| 68 | |
| 69 void NotifyWorkerDestroyed( | |
| 70 WorkerProcessHost* process, | |
| 71 int worker_route_id); | |
| 72 | |
| 73 void NotifyWorkerProcessCreated(); | |
| 74 | |
| 75 // Used when we run each worker in a separate process. | |
| 76 static const int kMaxWorkersWhenSeparate; | |
| 77 static const int kMaxWorkersPerFrameWhenSeparate; | |
| 78 | |
| 79 private: | |
| 80 friend struct DefaultSingletonTraits<WorkerServiceImpl>; | |
| 81 | |
| 82 WorkerServiceImpl(); | |
| 83 virtual ~WorkerServiceImpl(); | |
| 84 | |
| 85 // Given a WorkerInstance, create an associated worker process. | |
| 86 bool CreateWorkerFromInstance(WorkerProcessHost::WorkerInstance instance); | |
| 87 | |
| 88 // Checks if we can create a worker process based on the process limit when | |
| 89 // we're using a strategy of one process per core. | |
| 90 bool CanCreateWorkerProcess( | |
| 91 const WorkerProcessHost::WorkerInstance& instance); | |
| 92 | |
| 93 // Checks if the frame associated with the passed RenderFrame can create a | |
| 94 // worker process based on the process limit when we're using a strategy of | |
| 95 // one worker per process. | |
| 96 bool FrameCanCreateWorkerProcess( | |
| 97 int render_process_id, int render_frame_id, bool* hit_total_worker_limit); | |
| 98 | |
| 99 // Tries to see if any of the queued workers can be created. | |
| 100 void TryStartingQueuedWorker(); | |
| 101 | |
| 102 WorkerProcessHost::WorkerInstance* FindSharedWorkerInstance( | |
| 103 const GURL& url, | |
| 104 const base::string16& name, | |
| 105 const WorkerStoragePartition& worker_partition, | |
| 106 ResourceContext* resource_context); | |
| 107 | |
| 108 scoped_refptr<WorkerPrioritySetter> priority_setter_; | |
| 109 | |
| 110 int next_worker_route_id_; | |
| 111 | |
| 112 WorkerProcessHost::Instances queued_workers_; | |
| 113 | |
| 114 ObserverList<WorkerServiceObserver> observers_; | |
| 115 | |
| 116 DISALLOW_COPY_AND_ASSIGN(WorkerServiceImpl); | |
| 117 }; | |
| 118 | |
| 119 } // namespace content | |
| 120 | |
| 121 #endif // CONTENT_BROWSER_WORKER_HOST_WORKER_SERVICE_H_ | |
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Chromium Code Reviews
Issue 411283002:
Remove disable-embedded-shared-worker flag and shared worker process related codes. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master