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| 1 /* | 1 /* |
| 2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
| 6 * met: | 6 * met: |
| 7 * | 7 * |
| 8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
| (...skipping 36 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 47 class ResourceError; | 47 class ResourceError; |
| 48 class ResourceRequest; | 48 class ResourceRequest; |
| 49 class WorkerGlobalScope; | 49 class WorkerGlobalScope; |
| 50 class WorkerLoaderProxy; | 50 class WorkerLoaderProxy; |
| 51 struct CrossThreadResourceRequestData; | 51 struct CrossThreadResourceRequestData; |
| 52 | 52 |
| 53 class WorkerThreadableLoader final : public ThreadableLoader, private Thread
ableLoaderClientWrapper::ResourceTimingClient { | 53 class WorkerThreadableLoader final : public ThreadableLoader, private Thread
ableLoaderClientWrapper::ResourceTimingClient { |
| 54 WTF_MAKE_FAST_ALLOCATED(WorkerThreadableLoader); | 54 WTF_MAKE_FAST_ALLOCATED(WorkerThreadableLoader); |
| 55 public: | 55 public: |
| 56 static void loadResourceSynchronously(WorkerGlobalScope&, const Resource
Request&, ThreadableLoaderClient&, const ThreadableLoaderOptions&, const Resourc
eLoaderOptions&); | 56 static void loadResourceSynchronously(WorkerGlobalScope&, const Resource
Request&, ThreadableLoaderClient&, const ThreadableLoaderOptions&, const Resourc
eLoaderOptions&); |
| 57 static PassRefPtr<WorkerThreadableLoader> create(WorkerGlobalScope& work
erGlobalScope, PassRefPtr<ThreadableLoaderClientWrapper> clientWrapper, PassOwnP
tr<ThreadableLoaderClient> clientBridge, const ResourceRequest& request, const T
hreadableLoaderOptions& options, const ResourceLoaderOptions& resourceLoaderOpti
ons) | 57 static PassRefPtr<WorkerThreadableLoader> create(WorkerGlobalScope& work
erGlobalScope, PassRefPtr<ThreadableLoaderClientWrapper> clientWrapper, PassOwnP
tr<ThreadableLoaderClient> clientBridge, const ThreadableLoaderOptions& options,
const ResourceLoaderOptions& resourceLoaderOptions) |
| 58 { | 58 { |
| 59 return adoptRef(new WorkerThreadableLoader(workerGlobalScope, client
Wrapper, clientBridge, request, options, resourceLoaderOptions)); | 59 return adoptRef(new WorkerThreadableLoader(workerGlobalScope, client
Wrapper, clientBridge, options, resourceLoaderOptions)); |
| 60 } | 60 } |
| 61 | 61 |
| 62 ~WorkerThreadableLoader() override; | 62 ~WorkerThreadableLoader() override; |
| 63 | 63 |
| 64 void start(const ResourceRequest&) override; |
| 65 |
| 64 void overrideTimeout(unsigned long timeout) override; | 66 void overrideTimeout(unsigned long timeout) override; |
| 65 | 67 |
| 66 void cancel() override; | 68 void cancel() override; |
| 67 | 69 |
| 68 private: | 70 private: |
| 69 // Creates a loader on the main thread and bridges communication between | 71 // Creates a loader on the main thread and bridges communication between |
| 70 // the main thread and the worker context's thread where WorkerThreadabl
eLoader runs. | 72 // the main thread and the worker context's thread where WorkerThreadabl
eLoader runs. |
| 71 // | 73 // |
| 72 // Regarding the bridge and lifetimes of items used in callbacks, there
are a few cases: | 74 // Regarding the bridge and lifetimes of items used in callbacks, there
are a few cases: |
| 73 // | 75 // |
| 74 // all cases. All tasks posted from the worker context's thread are ok b
ecause | 76 // all cases. All tasks posted from the worker context's thread are ok b
ecause |
| 75 // the last task posted always is "mainThreadDestroy", so MainThreadB
ridge is | 77 // the last task posted always is "mainThreadDestroy", so MainThreadB
ridge is |
| 76 // around for all tasks that use it on the main thread. | 78 // around for all tasks that use it on the main thread. |
| 77 // | 79 // |
| 78 // case 1. worker.terminate is called. | 80 // case 1. worker.terminate is called. |
| 79 // In this case, no more tasks are posted from the worker object's th
read to the worker | 81 // In this case, no more tasks are posted from the worker object's th
read to the worker |
| 80 // context's thread -- WorkerGlobalScopeProxy implementation enforces
this. | 82 // context's thread -- WorkerGlobalScopeProxy implementation enforces
this. |
| 81 // | 83 // |
| 82 // case 2. xhr gets aborted and the worker context continues running. | 84 // case 2. xhr gets aborted and the worker context continues running. |
| 83 // The ThreadableLoaderClientWrapper has the underlying client cleare
d, so no more calls | 85 // The ThreadableLoaderClientWrapper has the underlying client cleare
d, so no more calls |
| 84 // go through it. All tasks posted from the worker object's thread t
o the worker context's | 86 // go through it. All tasks posted from the worker object's thread t
o the worker context's |
| 85 // thread do "ThreadableLoaderClientWrapper::ref" (automatically insi
de of the cross thread copy | 87 // thread do "ThreadableLoaderClientWrapper::ref" (automatically insi
de of the cross thread copy |
| 86 // done in createCrossThreadTask), so the ThreadableLoaderClientWrapp
er instance is there until all | 88 // done in createCrossThreadTask), so the ThreadableLoaderClientWrapp
er instance is there until all |
| 87 // tasks are executed. | 89 // tasks are executed. |
| 88 class MainThreadBridge final : public ThreadableLoaderClient { | 90 class MainThreadBridge final : public ThreadableLoaderClient { |
| 89 public: | 91 public: |
| 90 // All executed on the worker context's thread. | 92 // All executed on the worker context's thread. |
| 91 MainThreadBridge(PassRefPtr<ThreadableLoaderClientWrapper>, PassOwnP
tr<ThreadableLoaderClient>, PassRefPtr<WorkerLoaderProxy>, const ResourceRequest
&, const ThreadableLoaderOptions&, const ResourceLoaderOptions&, const ReferrerP
olicy, const String& outgoingReferrer); | 93 MainThreadBridge(PassRefPtr<ThreadableLoaderClientWrapper>, PassOwnP
tr<ThreadableLoaderClient>, PassRefPtr<WorkerLoaderProxy>, const ThreadableLoade
rOptions&, const ResourceLoaderOptions&); |
| 94 void start(const ResourceRequest&, const ReferrerPolicy, const Strin
g&); |
| 92 void overrideTimeout(unsigned long timeoutMilliseconds); | 95 void overrideTimeout(unsigned long timeoutMilliseconds); |
| 93 void cancel(); | 96 void cancel(); |
| 94 void destroy(); | 97 void destroy(); |
| 95 | 98 |
| 96 private: | 99 private: |
| 97 // Executed on the worker context's thread. | 100 // Executed on the worker context's thread. |
| 98 void clearClientWrapper(); | 101 void clearClientWrapper(); |
| 99 | 102 |
| 100 // All executed on the main thread. | 103 // All executed on the main thread. |
| 101 void mainThreadDestroy(ExecutionContext*); | 104 void mainThreadDestroy(ExecutionContext*); |
| 102 ~MainThreadBridge() override; | 105 ~MainThreadBridge() override; |
| 103 | 106 |
| 104 void mainThreadCreateLoader(PassOwnPtr<CrossThreadResourceRequestDat
a>, ThreadableLoaderOptions, ResourceLoaderOptions, const ReferrerPolicy, const
String& outgoingReferrer, ExecutionContext*); | 107 void mainThreadCreateLoader(ThreadableLoaderOptions, ResourceLoaderO
ptions, ExecutionContext*); |
| 108 void mainThreadStart(PassOwnPtr<CrossThreadResourceRequestData>, con
st ReferrerPolicy, const String& outgoingReferrer); |
| 105 void mainThreadOverrideTimeout(unsigned long timeoutMilliseconds, Ex
ecutionContext*); | 109 void mainThreadOverrideTimeout(unsigned long timeoutMilliseconds, Ex
ecutionContext*); |
| 106 void mainThreadCancel(ExecutionContext*); | 110 void mainThreadCancel(ExecutionContext*); |
| 107 void didSendData(unsigned long long bytesSent, unsigned long long to
talBytesToBeSent) override; | 111 void didSendData(unsigned long long bytesSent, unsigned long long to
talBytesToBeSent) override; |
| 108 void didReceiveResponse(unsigned long identifier, const ResourceResp
onse&, PassOwnPtr<WebDataConsumerHandle>) override; | 112 void didReceiveResponse(unsigned long identifier, const ResourceResp
onse&, PassOwnPtr<WebDataConsumerHandle>) override; |
| 109 void didReceiveData(const char*, unsigned dataLength) override; | 113 void didReceiveData(const char*, unsigned dataLength) override; |
| 110 void didDownloadData(int dataLength) override; | 114 void didDownloadData(int dataLength) override; |
| 111 void didReceiveCachedMetadata(const char*, int dataLength) override; | 115 void didReceiveCachedMetadata(const char*, int dataLength) override; |
| 112 void didFinishLoading(unsigned long identifier, double finishTime) o
verride; | 116 void didFinishLoading(unsigned long identifier, double finishTime) o
verride; |
| 113 void didFail(const ResourceError&) override; | 117 void didFail(const ResourceError&) override; |
| 114 void didFailAccessControlCheck(const ResourceError&) override; | 118 void didFailAccessControlCheck(const ResourceError&) override; |
| 115 void didFailRedirectCheck() override; | 119 void didFailRedirectCheck() override; |
| 116 void didReceiveResourceTiming(const ResourceTimingInfo&) override; | 120 void didReceiveResourceTiming(const ResourceTimingInfo&) override; |
| 117 | 121 |
| 118 // Only to be used on the main thread. | 122 // Only to be used on the main thread. |
| 119 RefPtr<ThreadableLoader> m_mainThreadLoader; | 123 RefPtr<ThreadableLoader> m_mainThreadLoader; |
| 120 OwnPtr<ThreadableLoaderClient> m_clientBridge; | 124 OwnPtr<ThreadableLoaderClient> m_clientBridge; |
| 121 | 125 |
| 122 // ThreadableLoaderClientWrapper is to be used on the worker context
thread. | 126 // ThreadableLoaderClientWrapper is to be used on the worker context
thread. |
| 123 // The ref counting is done on either thread. | 127 // The ref counting is done on either thread. |
| 124 RefPtr<ThreadableLoaderClientWrapper> m_workerClientWrapper; | 128 RefPtr<ThreadableLoaderClientWrapper> m_workerClientWrapper; |
| 125 | 129 |
| 126 // Used on the worker context thread. | 130 // Used on the worker context thread. |
| 127 RefPtr<WorkerLoaderProxy> m_loaderProxy; | 131 RefPtr<WorkerLoaderProxy> m_loaderProxy; |
| 128 }; | 132 }; |
| 129 | 133 |
| 130 WorkerThreadableLoader(WorkerGlobalScope&, PassRefPtr<ThreadableLoaderCl
ientWrapper>, PassOwnPtr<ThreadableLoaderClient>, const ResourceRequest&, const
ThreadableLoaderOptions&, const ResourceLoaderOptions&); | 134 WorkerThreadableLoader(WorkerGlobalScope&, PassRefPtr<ThreadableLoaderCl
ientWrapper>, PassOwnPtr<ThreadableLoaderClient>, const ThreadableLoaderOptions&
, const ResourceLoaderOptions&); |
| 131 | 135 |
| 132 void didReceiveResourceTiming(const ResourceTimingInfo&) override; | 136 void didReceiveResourceTiming(const ResourceTimingInfo&) override; |
| 133 | 137 |
| 134 RefPtrWillBePersistent<WorkerGlobalScope> m_workerGlobalScope; | 138 RefPtrWillBePersistent<WorkerGlobalScope> m_workerGlobalScope; |
| 135 RefPtr<ThreadableLoaderClientWrapper> m_workerClientWrapper; | 139 RefPtr<ThreadableLoaderClientWrapper> m_workerClientWrapper; |
| 136 MainThreadBridge& m_bridge; | 140 MainThreadBridge& m_bridge; |
| 137 }; | 141 }; |
| 138 | 142 |
| 139 } // namespace blink | 143 } // namespace blink |
| 140 | 144 |
| 141 #endif // WorkerThreadableLoader_h | 145 #endif // WorkerThreadableLoader_h |
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