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Side by Side Diff: third_party/WebKit/WebCore/loader/WorkerThreadableLoader.cpp

Issue 20076: WebKit merge 40500:40539 [WebKit side] (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 11 years, 10 months ago
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1 /*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32
33 #if ENABLE(WORKERS)
34
35 #include "WorkerThreadableLoader.h"
36
37 #include "GenericWorkerTask.h"
38 #include "ResourceRequest.h"
39 #include "ResourceResponse.h"
40 #include "ThreadableLoader.h"
41 #include "WorkerContext.h"
42 #include "WorkerMessagingProxy.h"
43 #include "WorkerThread.h"
44 #include <memory>
45 #include <wtf/OwnPtr.h>
46 #include <wtf/Threading.h>
47 #include <wtf/Vector.h>
48
49 using namespace std;
50
51 namespace WebCore {
52
53 WorkerThreadableLoader::WorkerThreadableLoader(WorkerContext* workerContext, Thr eadableLoaderClient* client, const ResourceRequest& request, LoadCallbacks callb acksSetting, ContentSniff contentSniff)
54 : m_workerContext(workerContext)
55 , m_bridge(*(new MainThreadBridge(client, *m_workerContext->thread()->messag ingProxy(), request, callbacksSetting, contentSniff)))
56 {
57 }
58
59 WorkerThreadableLoader::~WorkerThreadableLoader()
60 {
61 m_bridge.destroy();
62 }
63
64 void WorkerThreadableLoader::cancel()
65 {
66 m_bridge.cancel();
67 }
68
69 WorkerThreadableLoader::MainThreadBridge::MainThreadBridge(ThreadableLoaderClien t* workerClient, WorkerMessagingProxy& messagingProxy, const ResourceRequest& re quest, LoadCallbacks callbacksSetting, ContentSniff contentSniff)
70 : m_workerClientWrapper(ThreadableLoaderClientWrapper::create(workerClient))
71 , m_messagingProxy(messagingProxy)
72 {
73 ASSERT(workerClient);
74 m_messagingProxy.postTaskToWorkerObject(createCallbackTask(&MainThreadBridge ::mainThreadCreateLoader, this, request, callbacksSetting, contentSniff));
75 }
76
77 WorkerThreadableLoader::MainThreadBridge::~MainThreadBridge()
78 {
79 }
80
81 void WorkerThreadableLoader::MainThreadBridge::mainThreadCreateLoader(ScriptExec utionContext* context, MainThreadBridge* thisPtr, auto_ptr<CrossThreadResourceRe questData> requestData, LoadCallbacks callbacksSetting, ContentSniff contentSnif f)
82 {
83 // FIXME: This assert fails for nested workers. Removing the assert would a llow it to work,
84 // but then there would be one WorkerThreadableLoader in every intermediate worker simply
85 // chaining the requests, which is not very good. Instead, the postTaskToWor kerObject should be a
86 // postTaskToDocumentContext.
87 ASSERT(isMainThread());
88 ASSERT(context->isDocument());
89
90 if (thisPtr->m_messagingProxy.askedToTerminate())
91 return;
92
93 // FIXME: the created loader has no knowledge of the origin of the worker do ing the load request.
94 // Basically every setting done in SubresourceLoader::create (including the contents of addExtraFieldsToRequest)
95 // needs to be examined for how it should be take into account a different o riginator.
96 OwnPtr<ResourceRequest> request(ResourceRequest::adopt(requestData));
97 thisPtr->m_mainThreadLoader = ThreadableLoader::create(context, thisPtr, *re quest, callbacksSetting, contentSniff);
98 if (!thisPtr->m_mainThreadLoader)
99 thisPtr->didFail();
100 }
101
102 void WorkerThreadableLoader::MainThreadBridge::mainThreadDestroy(ScriptExecution Context* context, MainThreadBridge* thisPtr)
103 {
104 ASSERT(isMainThread());
105 ASSERT_UNUSED(context, context->isDocument());
106 delete thisPtr;
107 }
108
109 void WorkerThreadableLoader::MainThreadBridge::destroy()
110 {
111 // Ensure that no more client callbacks are done in the worker context's thr ead.
112 clearClientWrapper();
113
114 // "delete this" and m_mainThreadLoader::deref() on the worker object's thre ad.
115 m_messagingProxy.postTaskToWorkerObject(createCallbackTask(&MainThreadBridge ::mainThreadDestroy, this));
116 }
117
118 void WorkerThreadableLoader::MainThreadBridge::mainThreadCancel(ScriptExecutionC ontext* context, MainThreadBridge* thisPtr)
119 {
120 ASSERT(isMainThread());
121 ASSERT_UNUSED(context, context->isDocument());
122
123 if (!thisPtr->m_mainThreadLoader)
124 return;
125 thisPtr->m_mainThreadLoader->cancel();
126 thisPtr->m_mainThreadLoader = 0;
127 }
128
129 void WorkerThreadableLoader::MainThreadBridge::cancel()
130 {
131 m_messagingProxy.postTaskToWorkerObject(createCallbackTask(&MainThreadBridge ::mainThreadCancel, this));
132 clearClientWrapper();
133 }
134
135 void WorkerThreadableLoader::MainThreadBridge::clearClientWrapper()
136 {
137 static_cast<ThreadableLoaderClientWrapper*>(m_workerClientWrapper.get())->cl earClient();
138 }
139
140 static void workerContextDidSendData(ScriptExecutionContext* context, RefPtr<Thr eadableLoaderClientWrapper> workerClientWrapper, unsigned long long bytesSent, u nsigned long long totalBytesToBeSent)
141 {
142 ASSERT_UNUSED(context, context->isWorkerContext());
143 workerClientWrapper->didSendData(bytesSent, totalBytesToBeSent);
144 }
145
146 void WorkerThreadableLoader::MainThreadBridge::didSendData(unsigned long long by tesSent, unsigned long long totalBytesToBeSent)
147 {
148 m_messagingProxy.postTaskToWorkerContext(createCallbackTask(&workerContextDi dSendData, m_workerClientWrapper, bytesSent, totalBytesToBeSent));
149 }
150
151 static void workerContextDidReceiveResponse(ScriptExecutionContext* context, Ref Ptr<ThreadableLoaderClientWrapper> workerClientWrapper, auto_ptr<CrossThreadReso urceResponseData> responseData)
152 {
153 ASSERT_UNUSED(context, context->isWorkerContext());
154 OwnPtr<ResourceResponse> response(ResourceResponse::adopt(responseData));
155 workerClientWrapper->didReceiveResponse(*response);
156 }
157
158 void WorkerThreadableLoader::MainThreadBridge::didReceiveResponse(const Resource Response& response)
159 {
160 m_messagingProxy.postTaskToWorkerContext(createCallbackTask(&workerContextDi dReceiveResponse, m_workerClientWrapper, response));
161 }
162
163 static void workerContextDidReceiveData(ScriptExecutionContext* context, RefPtr< ThreadableLoaderClientWrapper> workerClientWrapper, auto_ptr<Vector<char> > vect orData)
164 {
165 ASSERT_UNUSED(context, context->isWorkerContext());
166 workerClientWrapper->didReceiveData(vectorData->data(), vectorData->size());
167 }
168
169 void WorkerThreadableLoader::MainThreadBridge::didReceiveData(const char* data, int lengthReceived)
170 {
171 auto_ptr<Vector<char> > vector(new Vector<char>(lengthReceived)); // needs t o be an auto_ptr for usage with createCallbackTask.
172 memcpy(vector->data(), data, lengthReceived);
173 m_messagingProxy.postTaskToWorkerContext(createCallbackTask(&workerContextDi dReceiveData, m_workerClientWrapper, vector));
174 }
175
176 static void workerContextDidFinishLoading(ScriptExecutionContext* context, RefPt r<ThreadableLoaderClientWrapper> workerClientWrapper, int identifier)
177 {
178 ASSERT_UNUSED(context, context->isWorkerContext());
179 workerClientWrapper->didFinishLoading(identifier);
180 }
181
182 void WorkerThreadableLoader::MainThreadBridge::didFinishLoading(int identifier)
183 {
184 m_messagingProxy.postTaskToWorkerContext(createCallbackTask(&workerContextDi dFinishLoading, m_workerClientWrapper, identifier));
185 }
186
187 static void workerContextDidFail(ScriptExecutionContext* context, RefPtr<Threada bleLoaderClientWrapper> workerClientWrapper)
188 {
189 ASSERT_UNUSED(context, context->isWorkerContext());
190 workerClientWrapper->didFail();
191 }
192
193 void WorkerThreadableLoader::MainThreadBridge::didFail()
194 {
195 m_messagingProxy.postTaskToWorkerContext(createCallbackTask(&workerContextDi dFail, m_workerClientWrapper));
196 }
197
198 static void workerContextDidGetCancelled(ScriptExecutionContext* context, RefPtr <ThreadableLoaderClientWrapper> workerClientWrapper)
199 {
200 ASSERT_UNUSED(context, context->isWorkerContext());
201 workerClientWrapper->didGetCancelled();
202 }
203
204 void WorkerThreadableLoader::MainThreadBridge::didGetCancelled()
205 {
206 m_messagingProxy.postTaskToWorkerContext(createCallbackTask(&workerContextDi dGetCancelled, m_workerClientWrapper));
207 }
208
209 static void workerContextDidReceiveAuthenticationCancellation(ScriptExecutionCon text* context, RefPtr<ThreadableLoaderClientWrapper> workerClientWrapper, auto_p tr<CrossThreadResourceResponseData> responseData)
210 {
211 ASSERT_UNUSED(context, context->isWorkerContext());
212 OwnPtr<ResourceResponse> response(ResourceResponse::adopt(responseData));
213 workerClientWrapper->didReceiveAuthenticationCancellation(*response);
214 }
215
216 void WorkerThreadableLoader::MainThreadBridge::didReceiveAuthenticationCancellat ion(const ResourceResponse& response)
217 {
218 m_messagingProxy.postTaskToWorkerContext(createCallbackTask(&workerContextDi dReceiveAuthenticationCancellation, m_workerClientWrapper, response));
219 }
220
221 } // namespace WebCore
222
223 #endif // ENABLE(WORKERS)
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