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author | Steve Block <steveblock@google.com> | 2011-05-06 11:45:16 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 13:44:10 +0100 |
commit | cad810f21b803229eb11403f9209855525a25d57 (patch) | |
tree | 29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/platform/network/BlobResourceHandle.h | |
parent | 121b0cf4517156d0ac5111caf9830c51b69bae8f (diff) | |
download | external_webkit-cad810f21b803229eb11403f9209855525a25d57.zip external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.bz2 |
Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/platform/network/BlobResourceHandle.h')
-rw-r--r-- | Source/WebCore/platform/network/BlobResourceHandle.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/Source/WebCore/platform/network/BlobResourceHandle.h b/Source/WebCore/platform/network/BlobResourceHandle.h new file mode 100644 index 0000000..63e8578 --- /dev/null +++ b/Source/WebCore/platform/network/BlobResourceHandle.h @@ -0,0 +1,116 @@ +/* + * Copyright (C) 2010 Google Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef BlobResourceHandle_h +#define BlobResourceHandle_h + +#if ENABLE(BLOB) + +#include "FileStreamClient.h" +#include "PlatformString.h" +#include "ResourceHandle.h" +#include <wtf/PassRefPtr.h> +#include <wtf/Vector.h> + +namespace WebCore { + +class AsyncFileStream; +class BlobStorageData; +class FileStream; +class ResourceHandleClient; +class ResourceRequest; +struct BlobDataItem; + +class BlobResourceHandle : public FileStreamClient, public ResourceHandle { +public: + static PassRefPtr<BlobResourceHandle> create(PassRefPtr<BlobStorageData> blobData, const ResourceRequest& request, ResourceHandleClient* client, bool async = true) + { + return adoptRef(new BlobResourceHandle(blobData, request, client, async)); + } + + static void loadResourceSynchronously(PassRefPtr<BlobStorageData> blobData, const ResourceRequest& request, ResourceError& error, ResourceResponse& response, Vector<char>& data); + + // FileStreamClient methods. + virtual void didGetSize(long long); + virtual void didOpen(bool); + virtual void didRead(int); + + // ResourceHandle methods. + virtual void cancel(); + + void start(); + int readSync(char*, int); + +private: + BlobResourceHandle(PassRefPtr<BlobStorageData>, const ResourceRequest&, ResourceHandleClient*, bool async); + virtual ~BlobResourceHandle(); + + void getSizeForNext(); + void seek(); + void consumeData(const char* data, int bytesRead); + void failed(int errorCode); + + void readAsync(); + void readDataAsync(const BlobDataItem&); + void readFileAsync(const BlobDataItem&); + + int readDataSync(const BlobDataItem&, char*, int); + int readFileSync(const BlobDataItem&, char*, int); + + void notifyResponse(); + void notifyResponseOnSuccess(); + void notifyResponseOnError(); + void notifyReceiveData(const char*, int); + void notifyFail(int errorCode); + void notifyFinish(); + + RefPtr<BlobStorageData> m_blobData; + bool m_async; + RefPtr<AsyncFileStream> m_asyncStream; // For asynchronous loading. + RefPtr<FileStream> m_stream; // For synchronous loading. + Vector<char> m_buffer; + Vector<long long> m_itemLengthList; + int m_errorCode; + bool m_aborted; + long long m_rangeOffset; + long long m_rangeEnd; + long long m_rangeSuffixLength; + long long m_totalRemainingSize; + long long m_currentItemReadSize; + unsigned m_sizeItemCount; + unsigned m_readItemCount; + bool m_fileOpened; +}; + +} // namespace WebCore + +#endif // ENABLE(BLOB) + +#endif // BlobResourceHandle_h |