blob hacking webcore style

Source/modules/websockets/NewWebSocketChannelImpl.cpp

 /*
  * Copyright (C) 2013 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
@@ skipping 122 matching lines @@
 {
     return code == WebSocketChannel::CloseEventCodeNormalClosure
         || (WebSocketChannel::CloseEventCodeMinimumUserDefined <= code
         && code <= WebSocketChannel::CloseEventCodeMaximumUserDefined);
 }
 
 } // namespace
 
 class NewWebSocketChannelImpl::BlobLoader : public FileReaderLoaderClient {
 public:
-    BlobLoader(const Blob&, NewWebSocketChannelImpl*);
+    BlobLoader(PassRefPtr<BlobDataHandle>, NewWebSocketChannelImpl*);
     virtual ~BlobLoader() { }
 
     void cancel();
 
     // FileReaderLoaderClient functions.
     virtual void didStartLoading() OVERRIDE { }
     virtual void didReceiveData() OVERRIDE { }
     virtual void didFinishLoading() OVERRIDE;
     virtual void didFail(FileError::ErrorCode) OVERRIDE;
 
 private:
     NewWebSocketChannelImpl* m_channel;
     FileReaderLoader m_loader;
 };
 
-NewWebSocketChannelImpl::BlobLoader::BlobLoader(const Blob& blob, NewWebSocketChannelImpl* channel)
+NewWebSocketChannelImpl::BlobLoader::BlobLoader(PassRefPtr<BlobDataHandle> blobData, NewWebSocketChannelImpl* channel)
     : m_channel(channel)
     , m_loader(FileReaderLoader::ReadAsArrayBuffer, this)
 {
-    m_loader.start(channel->scriptExecutionContext(), blob);
+    m_loader.start(channel->scriptExecutionContext(), blobData);
 }
 
 void NewWebSocketChannelImpl::BlobLoader::cancel()
 {
     m_loader.cancel();
     // didFail will be called immediately.
     // |this| is deleted here.
 }
 
 void NewWebSocketChannelImpl::BlobLoader::didFinishLoading()
@@ skipping 127 matching lines @@
     return m_extensions;
 }
 
 WebSocketChannel::SendResult NewWebSocketChannelImpl::send(const String& message)
 {
     m_messages.append(Message(message));
     sendInternal();
     return SendSuccess;
 }
 
-WebSocketChannel::SendResult NewWebSocketChannelImpl::send(const Blob& blob)
+WebSocketChannel::SendResult NewWebSocketChannelImpl::send(PassRefPtr<BlobDataHandle> blobData)
 {
-    m_messages.append(Message(blob));
+    m_messages.append(Message(blobData));
     sendInternal();
     return SendSuccess;
 }
 
 WebSocketChannel::SendResult NewWebSocketChannelImpl::send(const ArrayBuffer& buffer, unsigned byteOffset, unsigned byteLength)
 {
     // buffer.slice copies its contents.
     m_messages.append(buffer.slice(byteOffset, byteOffset + byteLength));
     sendInternal();
     return SendSuccess;
@@ skipping 96 matching lines @@
         isClean(code) ? WebSocketChannelClient::ClosingHandshakeComplete : WebSocketChannelClient::ClosingHandshakeIncomplete;
     client->didClose(m_bufferedAmount, status, code, reason);
     // client->didClose may delete this object.
 }
 
 
 NewWebSocketChannelImpl::Message::Message(const String& text)
     : type(MessageTypeText)
     , text(text.utf8(String::StrictConversionReplacingUnpairedSurrogatesWithFFFD)) { }
 
-NewWebSocketChannelImpl::Message::Message(const Blob& blob)
+NewWebSocketChannelImpl::Message::Message(PassRefPtr<BlobDataHandle> blobData)
     : type(MessageTypeBlob)
-    , blob(Blob::create(blob.url(), blob.type(), blob.size())) { }
+    , blobData(blobData) { }
 
 NewWebSocketChannelImpl::Message::Message(PassRefPtr<ArrayBuffer> arrayBuffer)
     : type(MessageTypeArrayBuffer)
     , arrayBuffer(arrayBuffer) { }
 
 void NewWebSocketChannelImpl::sendInternal()
 {
     ASSERT(m_handle);
     unsigned long bufferedAmount = m_bufferedAmount;
     while (!m_messages.isEmpty() && m_sendingQuota > 0 && !m_blobLoader) {
         bool final = false;
         const Message& message = m_messages.first();
         switch (message.type) {
         case MessageTypeText: {
             WebSocketHandle::MessageType type =
                 m_sentSizeOfTopMessage ? WebSocketHandle::MessageTypeContinuation : WebSocketHandle::MessageTypeText;
             size_t size = std::min(static_cast<size_t>(m_sendingQuota), message.text.length() - m_sentSizeOfTopMessage);
             final = (m_sendingQuota == size);
             m_handle->send(final, type, message.text.data() + m_sentSizeOfTopMessage, size);
             m_sentSizeOfTopMessage += size;
             m_sendingQuota -= size;
             break;
         }
         case MessageTypeBlob:
             ASSERT(!m_blobLoader);
-            m_blobLoader = adoptPtr(new BlobLoader(*message.blob, this));
+            m_blobLoader = adoptPtr(new BlobLoader(message.blobData, this));
             break;
         case MessageTypeArrayBuffer: {
             WebSocketHandle::MessageType type =
                 m_sentSizeOfTopMessage ? WebSocketHandle::MessageTypeContinuation : WebSocketHandle::MessageTypeBinary;
             size_t size = std::min(static_cast<size_t>(m_sendingQuota), message.arrayBuffer->byteLength() - m_sentSizeOfTopMessage);
             final = (m_sendingQuota == size);
             m_handle->send(final, type, static_cast<const char*>(message.arrayBuffer->data()) + m_sentSizeOfTopMessage, size);
             m_sentSizeOfTopMessage += size;
             m_sendingQuota -= size;
             break;
@@ skipping 118 matching lines @@
     if (errorCode == FileError::ABORT_ERR) {
         // The error is caused by cancel().
         return;
     }
     // FIXME: Generate human-friendly reason message.
     failAsError("Failed to load Blob: error code = " + String::number(errorCode));
     // |this| can be deleted here.
 }
 
 } // namespace WebCore