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| 1 /* | |
| 2 * Copyright (C) 2009, 2012 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef WorkerScriptController_h | |
| 32 #define WorkerScriptController_h | |
| 33 | |
| 34 #include "bindings/v8/ScriptValue.h" | |
| 35 #include "bindings/v8/V8Binding.h" | |
| 36 #include "wtf/OwnPtr.h" | |
| 37 #include "wtf/ThreadingPrimitives.h" | |
| 38 #include "wtf/text/TextPosition.h" | |
| 39 #include <v8.h> | |
| 40 | |
| 41 namespace WebCore { | |
| 42 | |
| 43 class ErrorEvent; | |
| 44 class ScriptSourceCode; | |
| 45 class ScriptValue; | |
| 46 class WorkerGlobalScope; | |
| 47 | |
| 48 struct WorkerGlobalScopeExecutionState { | |
| 49 WorkerGlobalScopeExecutionState() | |
| 50 : hadException(false) | |
| 51 , lineNumber(0) | |
| 52 , columnNumber(0) | |
| 53 { | |
| 54 } | |
| 55 | |
| 56 bool hadException; | |
| 57 String errorMessage; | |
| 58 int lineNumber; | |
| 59 int columnNumber; | |
| 60 String sourceURL; | |
| 61 ScriptValue exception; | |
| 62 }; | |
| 63 | |
| 64 class WorkerScriptController { | |
| 65 public: | |
| 66 explicit WorkerScriptController(WorkerGlobalScope&); | |
| 67 ~WorkerScriptController(); | |
| 68 | |
| 69 WorkerGlobalScope& workerGlobalScope() { return m_workerGlobalScope; } | |
| 70 | |
| 71 bool initializeContextIfNeeded(); | |
| 72 | |
| 73 void evaluate(const ScriptSourceCode&, RefPtrWillBeRawPtr<ErrorEvent>* =
0); | |
| 74 | |
| 75 void rethrowExceptionFromImportedScript(PassRefPtrWillBeRawPtr<ErrorEven
t>); | |
| 76 | |
| 77 // Async request to terminate a future JS execution. Eventually causes t
ermination | |
| 78 // exception raised during JS execution, if the worker thread happens to
run JS. | |
| 79 // After JS execution was terminated in this way, the Worker thread has
to use | |
| 80 // forbidExecution()/isExecutionForbidden() to guard against reentry int
o JS. | |
| 81 // Can be called from any thread. | |
| 82 void scheduleExecutionTermination(); | |
| 83 bool isExecutionTerminating() const; | |
| 84 | |
| 85 // Called on Worker thread when JS exits with termination exception caus
ed by forbidExecution() request, | |
| 86 // or by Worker thread termination code to prevent future entry into JS. | |
| 87 void forbidExecution(); | |
| 88 bool isExecutionForbidden() const; | |
| 89 | |
| 90 void disableEval(const String&); | |
| 91 | |
| 92 // Evaluate a script file in the current execution environment. | |
| 93 ScriptValue evaluate(const String& script, const String& fileName, const
TextPosition& scriptStartPosition, WorkerGlobalScopeExecutionState*); | |
| 94 | |
| 95 v8::Isolate* isolate() const { return m_isolate; } | |
| 96 DOMWrapperWorld& world() const { return *m_world; } | |
| 97 ScriptState* scriptState() { return m_scriptState.get(); } | |
| 98 v8::Local<v8::Context> context() { return m_scriptState ? m_scriptState-
>context() : v8::Local<v8::Context>(); } | |
| 99 bool isContextInitialized() { return m_scriptState && !!m_scriptState->p
erContextData(); } | |
| 100 | |
| 101 // Send a notification about current thread is going to be idle. | |
| 102 // Returns true if the embedder should stop calling idleNotification | |
| 103 // until real work has been done. | |
| 104 bool idleNotification() { return v8::V8::IdleNotification(); } | |
| 105 | |
| 106 | |
| 107 private: | |
| 108 v8::Isolate* m_isolate; | |
| 109 WorkerGlobalScope& m_workerGlobalScope; | |
| 110 RefPtr<ScriptState> m_scriptState; | |
| 111 RefPtr<DOMWrapperWorld> m_world; | |
| 112 String m_disableEvalPending; | |
| 113 bool m_executionForbidden; | |
| 114 bool m_executionScheduledToTerminate; | |
| 115 mutable Mutex m_scheduledTerminationMutex; | |
| 116 RefPtrWillBePersistent<ErrorEvent> m_errorEventFromImportedScript; | |
| 117 OwnPtr<V8IsolateInterruptor> m_interruptor; | |
| 118 }; | |
| 119 | |
| 120 } // namespace WebCore | |
| 121 | |
| 122 #endif // WorkerScriptController_h | |
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Chromium Code Reviews
Issue 351423002:
Moved files under Source/bindings/v8 to Source/bindings/core/v8. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk