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61a2a00c78
This CL plumbs the data pipe from the network stack all the way to the parser thread. We now drain the data pipe on the parser thread, which means network bytes don't need to transit the main thread to reach the parser. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/664573004
89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
/*
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* Copyright (C) 2013 Google, Inc. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef BackgroundHTMLParser_h
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#define BackgroundHTMLParser_h
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#include "base/memory/weak_ptr.h"
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#include "core/html/parser/CompactHTMLToken.h"
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#include "core/html/parser/HTMLParserOptions.h"
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#include "core/html/parser/HTMLTokenizer.h"
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#include "core/html/parser/TextResourceDecoder.h"
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#include "mojo/public/cpp/system/core.h"
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#include "platform/fetcher/DataPipeDrainer.h"
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#include "platform/text/SegmentedString.h"
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#include "wtf/PassOwnPtr.h"
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#include "wtf/WeakPtr.h"
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namespace blink {
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class HTMLDocumentParser;
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class SharedBuffer;
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class BackgroundHTMLParser : public DataPipeDrainer::Client {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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struct Configuration {
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HTMLParserOptions options;
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mojo::ScopedDataPipeConsumerHandle source;
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WeakPtr<HTMLDocumentParser> parser;
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};
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static base::WeakPtr<BackgroundHTMLParser> create(PassOwnPtr<Configuration>);
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void start();
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void stop();
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private:
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explicit BackgroundHTMLParser(PassOwnPtr<Configuration>);
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~BackgroundHTMLParser();
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void OnDataAvailable(const void* data, size_t numberOfBytes) override;
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void OnDataComplete() override;
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void finish();
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void markEndOfFile();
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void pumpTokenizer();
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void sendTokensToMainThread();
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bool updateTokenizerState(const CompactHTMLToken& token);
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SegmentedString m_input;
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OwnPtr<HTMLToken> m_token;
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OwnPtr<HTMLTokenizer> m_tokenizer;
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WeakPtr<HTMLDocumentParser> m_parser;
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OwnPtr<CompactHTMLTokenStream> m_pendingTokens;
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OwnPtr<TextResourceDecoder> m_decoder;
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mojo::ScopedDataPipeConsumerHandle m_source;
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OwnPtr<DataPipeDrainer> m_drainer;
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base::WeakPtrFactory<BackgroundHTMLParser> m_weakFactory;
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};
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}
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#endif
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