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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 |
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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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