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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