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      1 /*
      2  * Copyright (C) 2010 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 #include "ThreadableBlobRegistry.h"
     34 
     35 #include "BlobData.h"
     36 #include "BlobRegistry.h"
     37 #include <wtf/MainThread.h>
     38 
     39 namespace WebCore {
     40 
     41 struct BlobRegistryContext {
     42     BlobRegistryContext(const KURL& url, PassOwnPtr<BlobData> blobData)
     43         : url(url.copy())
     44         , blobData(blobData)
     45     {
     46         this->blobData->detachFromCurrentThread();
     47     }
     48 
     49     BlobRegistryContext(const KURL& url, const KURL& srcURL)
     50         : url(url.copy())
     51         , srcURL(srcURL.copy())
     52     {
     53     }
     54 
     55     BlobRegistryContext(const KURL& url)
     56         : url(url.copy())
     57     {
     58     }
     59 
     60     KURL url;
     61     KURL srcURL;
     62     OwnPtr<BlobData> blobData;
     63 };
     64 
     65 #if ENABLE(BLOB)
     66 
     67 static void registerBlobURLTask(void* context)
     68 {
     69     OwnPtr<BlobRegistryContext> blobRegistryContext = adoptPtr(static_cast<BlobRegistryContext*>(context));
     70     blobRegistry().registerBlobURL(blobRegistryContext->url, blobRegistryContext->blobData.release());
     71 }
     72 
     73 void ThreadableBlobRegistry::registerBlobURL(const KURL& url, PassOwnPtr<BlobData> blobData)
     74 {
     75     if (isMainThread())
     76         blobRegistry().registerBlobURL(url, blobData);
     77     else {
     78         OwnPtr<BlobRegistryContext> context = adoptPtr(new BlobRegistryContext(url, blobData));
     79         callOnMainThread(&registerBlobURLTask, context.leakPtr());
     80     }
     81 }
     82 
     83 static void registerBlobURLFromTask(void* context)
     84 {
     85     OwnPtr<BlobRegistryContext> blobRegistryContext = adoptPtr(static_cast<BlobRegistryContext*>(context));
     86     blobRegistry().registerBlobURL(blobRegistryContext->url, blobRegistryContext->srcURL);
     87 }
     88 
     89 void ThreadableBlobRegistry::registerBlobURL(const KURL& url, const KURL& srcURL)
     90 {
     91     if (isMainThread())
     92         blobRegistry().registerBlobURL(url, srcURL);
     93     else {
     94         OwnPtr<BlobRegistryContext> context = adoptPtr(new BlobRegistryContext(url, srcURL));
     95         callOnMainThread(&registerBlobURLFromTask, context.leakPtr());
     96     }
     97 }
     98 
     99 static void unregisterBlobURLTask(void* context)
    100 {
    101     OwnPtr<BlobRegistryContext> blobRegistryContext = adoptPtr(static_cast<BlobRegistryContext*>(context));
    102     blobRegistry().unregisterBlobURL(blobRegistryContext->url);
    103 }
    104 
    105 void ThreadableBlobRegistry::unregisterBlobURL(const KURL& url)
    106 {
    107     if (isMainThread())
    108         blobRegistry().unregisterBlobURL(url);
    109     else {
    110         OwnPtr<BlobRegistryContext> context = adoptPtr(new BlobRegistryContext(url));
    111         callOnMainThread(&unregisterBlobURLTask, context.leakPtr());
    112     }
    113 }
    114 
    115 #else
    116 
    117 void ThreadableBlobRegistry::registerBlobURL(const KURL&, PassOwnPtr<BlobData>)
    118 {
    119 }
    120 
    121 void ThreadableBlobRegistry::registerBlobURL(const KURL&, const KURL&)
    122 {
    123 }
    124 
    125 void ThreadableBlobRegistry::unregisterBlobURL(const KURL&)
    126 {
    127 }
    128 #endif // ENABL(BLOB)
    129 
    130 } // namespace WebCore
    131