/platform/external/webkit/WebCore/bindings/v8/WorkerScriptController.cpp

https://github.com/aharish/totoro-gb-opensource-update2 · C++ · 102 lines · 56 code · 16 blank · 30 comment · 3 complexity · 39aebabfb8e4c757e90b25e1c4c65996 MD5 · raw file

  1. /*
  2. * Copyright (C) 2009 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. #include "config.h"
  31. #if ENABLE(WORKERS)
  32. #include "WorkerScriptController.h"
  33. #include <v8.h>
  34. #include "ScriptSourceCode.h"
  35. #include "ScriptValue.h"
  36. #include "DOMTimer.h"
  37. #include "V8DOMMap.h"
  38. #include "V8Proxy.h"
  39. #include "WorkerContext.h"
  40. #include "WorkerContextExecutionProxy.h"
  41. #include "WorkerObjectProxy.h"
  42. #include "WorkerThread.h"
  43. namespace WebCore {
  44. WorkerScriptController::WorkerScriptController(WorkerContext* workerContext)
  45. : m_workerContext(workerContext)
  46. , m_proxy(new WorkerContextExecutionProxy(workerContext))
  47. , m_executionForbidden(false)
  48. {
  49. }
  50. WorkerScriptController::~WorkerScriptController()
  51. {
  52. removeAllDOMObjectsInCurrentThread();
  53. }
  54. ScriptValue WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode)
  55. {
  56. return evaluate(sourceCode, 0);
  57. }
  58. ScriptValue WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode, ScriptValue* exception)
  59. {
  60. {
  61. MutexLocker lock(m_sharedDataMutex);
  62. if (m_executionForbidden)
  63. return ScriptValue();
  64. }
  65. WorkerContextExecutionState state;
  66. ScriptValue result = m_proxy->evaluate(sourceCode.source(), sourceCode.url().string(), sourceCode.startLine() - 1, &state);
  67. if (state.hadException) {
  68. if (exception)
  69. *exception = state.exception;
  70. else
  71. m_workerContext->reportException(state.errorMessage, state.lineNumber, state.sourceURL);
  72. }
  73. return result;
  74. }
  75. void WorkerScriptController::forbidExecution()
  76. {
  77. // This function is called from another thread.
  78. MutexLocker lock(m_sharedDataMutex);
  79. m_executionForbidden = true;
  80. }
  81. void WorkerScriptController::setException(ScriptValue exception)
  82. {
  83. throwError(*exception.v8Value());
  84. }
  85. } // namespace WebCore
  86. #endif // ENABLE(WORKERS)