From cad810f21b803229eb11403f9209855525a25d57 Mon Sep 17 00:00:00 2001
From: Steve Block <steveblock@google.com>
Date: Fri, 6 May 2011 11:45:16 +0100
Subject: Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
---
 .../WebCore/platform/network/BlobResourceHandle.h  | 116 +++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 Source/WebCore/platform/network/BlobResourceHandle.h

(limited to 'Source/WebCore/platform/network/BlobResourceHandle.h')

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
-- 
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