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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Google, Inc. All Rights Reserved. | 2 * Copyright (C) 2010 Google, Inc. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| (...skipping 18 matching lines...) Expand all Loading... |
| 29 #include "core/html/parser/NestingLevelIncrementer.h" | 29 #include "core/html/parser/NestingLevelIncrementer.h" |
| 30 #include "platform/scheduler/CancellableTaskFactory.h" | 30 #include "platform/scheduler/CancellableTaskFactory.h" |
| 31 #include "wtf/Allocator.h" | 31 #include "wtf/Allocator.h" |
| 32 #include "wtf/PassOwnPtr.h" | 32 #include "wtf/PassOwnPtr.h" |
| 33 #include "wtf/RefPtr.h" | 33 #include "wtf/RefPtr.h" |
| 34 | 34 |
| 35 namespace blink { | 35 namespace blink { |
| 36 | 36 |
| 37 class Document; | 37 class Document; |
| 38 class HTMLDocumentParser; | 38 class HTMLDocumentParser; |
| 39 class WebTaskRunner; | |
| 40 | 39 |
| 41 class ActiveParserSession : public NestingLevelIncrementer { | 40 class ActiveParserSession : public NestingLevelIncrementer { |
| 42 STACK_ALLOCATED(); | 41 STACK_ALLOCATED(); |
| 43 public: | 42 public: |
| 44 ActiveParserSession(unsigned& nestingLevel, Document*); | 43 ActiveParserSession(unsigned& nestingLevel, Document*); |
| 45 ~ActiveParserSession(); | 44 ~ActiveParserSession(); |
| 46 | 45 |
| 47 private: | 46 private: |
| 48 RefPtrWillBeMember<Document> m_document; | 47 RefPtrWillBeMember<Document> m_document; |
| 49 }; | 48 }; |
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| 66 size_t processedElementTokens() const { return m_processedElementTokens; } | 65 size_t processedElementTokens() const { return m_processedElementTokens; } |
| 67 | 66 |
| 68 private: | 67 private: |
| 69 double m_startTime; | 68 double m_startTime; |
| 70 size_t m_processedElementTokens; | 69 size_t m_processedElementTokens; |
| 71 }; | 70 }; |
| 72 | 71 |
| 73 class HTMLParserScheduler { | 72 class HTMLParserScheduler { |
| 74 WTF_MAKE_NONCOPYABLE(HTMLParserScheduler); WTF_MAKE_FAST_ALLOCATED(HTMLParse
rScheduler); | 73 WTF_MAKE_NONCOPYABLE(HTMLParserScheduler); WTF_MAKE_FAST_ALLOCATED(HTMLParse
rScheduler); |
| 75 public: | 74 public: |
| 76 static PassOwnPtr<HTMLParserScheduler> create(HTMLDocumentParser* parser, We
bTaskRunner* loadingTaskRunner) | 75 static PassOwnPtr<HTMLParserScheduler> create(HTMLDocumentParser* parser) |
| 77 { | 76 { |
| 78 return adoptPtr(new HTMLParserScheduler(parser, loadingTaskRunner)); | 77 return adoptPtr(new HTMLParserScheduler(parser)); |
| 79 } | 78 } |
| 80 ~HTMLParserScheduler(); | 79 ~HTMLParserScheduler(); |
| 81 | 80 |
| 82 bool isScheduledForResume() const { return m_isSuspendedWithActiveTimer || m
_cancellableContinueParse->isPending(); } | 81 bool isScheduledForResume() const { return m_isSuspendedWithActiveTimer || m
_cancellableContinueParse->isPending(); } |
| 83 | 82 |
| 84 void scheduleForResume(); | 83 void scheduleForResume(); |
| 85 bool yieldIfNeeded(const SpeculationsPumpSession&, bool startingScript); | 84 bool yieldIfNeeded(const SpeculationsPumpSession&, bool startingScript); |
| 86 | 85 |
| 87 /** | 86 /** |
| 88 * Can only be called if this scheduler is suspended. If this is called, | 87 * Can only be called if this scheduler is suspended. If this is called, |
| 89 * then after the scheduler is resumed by calling resume(), this call | 88 * then after the scheduler is resumed by calling resume(), this call |
| 90 * ensures that HTMLDocumentParser::resumeAfterYield will be called. Used to | 89 * ensures that HTMLDocumentParser::resumeAfterYield will be called. Used to |
| 91 * signal this scheduler that the background html parser sent chunks to | 90 * signal this scheduler that the background html parser sent chunks to |
| 92 * HTMLDocumentParser while it was suspended. | 91 * HTMLDocumentParser while it was suspended. |
| 93 */ | 92 */ |
| 94 void forceResumeAfterYield(); | 93 void forceResumeAfterYield(); |
| 95 | 94 |
| 96 void suspend(); | 95 void suspend(); |
| 97 void resume(); | 96 void resume(); |
| 98 | 97 |
| 99 void detach(); // Clear active tasks if any. | 98 void detach(); // Clear active tasks if any. |
| 100 | 99 |
| 101 private: | 100 private: |
| 102 HTMLParserScheduler(HTMLDocumentParser*, WebTaskRunner*); | 101 explicit HTMLParserScheduler(HTMLDocumentParser*); |
| 103 | 102 |
| 104 bool shouldYield(const SpeculationsPumpSession&, bool startingScript) const; | 103 bool shouldYield(const SpeculationsPumpSession&, bool startingScript) const; |
| 105 void continueParsing(); | 104 void continueParsing(); |
| 106 | 105 |
| 107 HTMLDocumentParser* m_parser; | 106 HTMLDocumentParser* m_parser; |
| 108 OwnPtr<WebTaskRunner> m_loadingTaskRunner; | 107 WebTaskRunner* m_loadingTaskRunner; // NOT OWNED |
| 109 | 108 |
| 110 OwnPtr<CancellableTaskFactory> m_cancellableContinueParse; | 109 OwnPtr<CancellableTaskFactory> m_cancellableContinueParse; |
| 111 bool m_isSuspendedWithActiveTimer; | 110 bool m_isSuspendedWithActiveTimer; |
| 112 }; | 111 }; |
| 113 | 112 |
| 114 } | 113 } |
| 115 | 114 |
| 116 #endif | 115 #endif |
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