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e0fd75b5ab
This caused us to lose our gn check certification. :( Turns out gn check was just ignoring all the header paths it didn't understand and so gn check passing for sky wasn't meaning much. I tried to straighten out some of the mess in this CL, but its going to take several more rounds of massaging before gn check passes again. On the bright side (almost) all of our headers are absolute now. Turns out my script (attached to the bug) didn't notice ../ includes but I'll fix that in the next patch. R=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/746023002
109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
/*
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* Copyright (C) 2010 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 APPLE 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 APPLE 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 HTMLParserScheduler_h
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#define HTMLParserScheduler_h
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#include "sky/engine/core/html/parser/NestingLevelIncrementer.h"
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#include "sky/engine/platform/Timer.h"
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#include "sky/engine/wtf/CurrentTime.h"
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#include "sky/engine/wtf/PassOwnPtr.h"
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#include "sky/engine/wtf/RefPtr.h"
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namespace blink {
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class Document;
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class HTMLDocumentParser;
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class ActiveParserSession {
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STACK_ALLOCATED();
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public:
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explicit ActiveParserSession(Document*);
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~ActiveParserSession();
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private:
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RefPtr<Document> m_document;
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};
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class PumpSession : public NestingLevelIncrementer, public ActiveParserSession {
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STACK_ALLOCATED();
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public:
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PumpSession(unsigned& nestingLevel, Document*);
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~PumpSession();
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int processedTokens;
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double startTime;
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bool needsYield;
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bool didSeeScript;
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};
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class HTMLParserScheduler {
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WTF_MAKE_NONCOPYABLE(HTMLParserScheduler); WTF_MAKE_FAST_ALLOCATED;
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public:
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static PassOwnPtr<HTMLParserScheduler> create(HTMLDocumentParser* parser)
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{
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return adoptPtr(new HTMLParserScheduler(parser));
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}
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~HTMLParserScheduler();
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// Inline as this is called after every token in the parser.
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void checkForYieldBeforeToken(PumpSession& session)
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{
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if (session.processedTokens > parserChunkSize || session.didSeeScript) {
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// currentTime() can be expensive. By delaying, we avoided calling
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// currentTime() when constructing non-yielding PumpSessions.
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if (!session.startTime)
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session.startTime = currentTime();
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session.processedTokens = 0;
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session.didSeeScript = false;
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double elapsedTime = currentTime() - session.startTime;
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if (elapsedTime > parserTimeLimit)
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session.needsYield = true;
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}
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++session.processedTokens;
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}
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void scheduleForResume();
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bool isScheduledForResume() const { return m_continueNextChunkTimer.isActive(); }
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private:
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static const double parserTimeLimit;
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static const int parserChunkSize;
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HTMLParserScheduler(HTMLDocumentParser*);
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void continueNextChunkTimerFired(Timer<HTMLParserScheduler>*);
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HTMLDocumentParser* m_parser;
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Timer<HTMLParserScheduler> m_continueNextChunkTimer;
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};
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}
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#endif
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