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26 #ifndef HTMLParserScheduler_h
27 #define HTMLParserScheduler_h
29 #include "core/html/parser/NestingLevelIncrementer.h"
30 #include "platform/Timer.h"
31 #include "wtf/PassOwnPtr.h"
32 #include "wtf/RefPtr.h"
37 class HTMLDocumentParser;
39 class ActiveParserSession {
42 explicit ActiveParserSession(Document*);
43 ~ActiveParserSession();
46 RefPtrWillBeMember<Document> m_document;
49 class PumpSession : public NestingLevelIncrementer, public ActiveParserSession {
52 PumpSession(unsigned& nestingLevel, Document*);
56 class SpeculationsPumpSession : public ActiveParserSession {
58 explicit SpeculationsPumpSession(Document*);
59 ~SpeculationsPumpSession();
61 double elapsedTime() const;
67 class HTMLParserScheduler {
68 WTF_MAKE_NONCOPYABLE(HTMLParserScheduler); WTF_MAKE_FAST_ALLOCATED;
70 static PassOwnPtr<HTMLParserScheduler> create(HTMLDocumentParser* parser)
72 return adoptPtr(new HTMLParserScheduler(parser));
74 ~HTMLParserScheduler();
76 bool isScheduledForResume() const { return m_isSuspendedWithActiveTimer || m_continueNextChunkTimer.isActive(); }
78 bool yieldIfNeeded(const SpeculationsPumpSession&);
84 explicit HTMLParserScheduler(HTMLDocumentParser*);
86 bool shouldYield(const SpeculationsPumpSession&) const;
87 void scheduleForResume();
88 void continueNextChunkTimerFired(Timer<HTMLParserScheduler>*);
90 HTMLDocumentParser* m_parser;
92 Timer<HTMLParserScheduler> m_continueNextChunkTimer;
93 bool m_isSuspendedWithActiveTimer;