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1 /*
2  * Copyright (C) 2014 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 #ifndef WorkerLoaderClientBridgeSyncHelper_h
32 #define WorkerLoaderClientBridgeSyncHelper_h
33 
34 #include "core/loader/ThreadableLoaderClient.h"
35 #include "wtf/Forward.h"
36 #include "wtf/Functional.h"
37 #include "wtf/Vector.h"
38 
39 namespace blink {
40 class WebWaitableEvent;
41 }
42 
43 namespace blink {
44 
45 // This bridge is created and destroyed on the worker thread, but is
46 // passed to and used on the main thread. Each did* method records the given
47 // data so that they can be run on the worker thread later (by run()).
48 class WorkerLoaderClientBridgeSyncHelper : public ThreadableLoaderClient {
49 public:
50     static PassOwnPtr<WorkerLoaderClientBridgeSyncHelper> create(ThreadableLoaderClient&, PassOwnPtr<blink::WebWaitableEvent>);
51     virtual ~WorkerLoaderClientBridgeSyncHelper();
52 
53     // Called on the worker context thread.
54     void run();
55 
56     // Called on the main thread.
57     virtual void didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent) OVERRIDE;
58     virtual void didReceiveResponse(unsigned long identifier, const ResourceResponse&) OVERRIDE;
59     virtual void didReceiveData(const char*, int dataLength) OVERRIDE;
60     virtual void didDownloadData(int dataLength) OVERRIDE;
61     virtual void didReceiveCachedMetadata(const char*, int dataLength) OVERRIDE;
62     virtual void didFinishLoading(unsigned long identifier, double finishTime) OVERRIDE;
63     virtual void didFail(const ResourceError&) OVERRIDE;
64     virtual void didFailAccessControlCheck(const ResourceError&) OVERRIDE;
65     virtual void didFailRedirectCheck() OVERRIDE;
66 
67 private:
68     WorkerLoaderClientBridgeSyncHelper(ThreadableLoaderClient&, PassOwnPtr<blink::WebWaitableEvent>);
69 
70     bool m_done;
71     ThreadableLoaderClient& m_client;
72     OwnPtr<blink::WebWaitableEvent> m_event;
73     Vector<Vector<char>*> m_receivedData;
74     Vector<Closure> m_clientTasks;
75 };
76 
77 } // namespace blink
78 
79 #endif // WorkerLoaderClientBridgeSyncHelper_h
80