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/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
 31#include "config.h"
 32
 33#if ENABLE(WORKERS)
 34
 35#include "WorkerScriptController.h"
 36
 37#include <v8.h>
 38
 39#include "ScriptSourceCode.h"
 40#include "ScriptValue.h"
 41#include "DOMTimer.h"
 42#include "V8DOMMap.h"
 43#include "V8Proxy.h"
 44#include "WorkerContext.h"
 45#include "WorkerContextExecutionProxy.h"
 46#include "WorkerObjectProxy.h"
 47#include "WorkerThread.h"
 48
 49namespace WebCore {
 50
 51WorkerScriptController::WorkerScriptController(WorkerContext* workerContext)
 52    : m_workerContext(workerContext)
 53    , m_proxy(new WorkerContextExecutionProxy(workerContext))
 54    , m_executionForbidden(false)
 55{
 56}
 57
 58WorkerScriptController::~WorkerScriptController()
 59{
 60    removeAllDOMObjectsInCurrentThread();
 61}
 62
 63ScriptValue WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode)
 64{
 65    return evaluate(sourceCode, 0);
 66}
 67
 68ScriptValue WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode, ScriptValue* exception)
 69{
 70    {
 71        MutexLocker lock(m_sharedDataMutex);
 72        if (m_executionForbidden)
 73            return ScriptValue();
 74    }
 75
 76    WorkerContextExecutionState state;
 77    ScriptValue result = m_proxy->evaluate(sourceCode.source(), sourceCode.url().string(), sourceCode.startLine() - 1, &state);
 78    if (state.hadException) {
 79        if (exception)
 80            *exception = state.exception;
 81        else
 82            m_workerContext->reportException(state.errorMessage, state.lineNumber, state.sourceURL);
 83    }
 84
 85    return result;
 86}
 87
 88void WorkerScriptController::forbidExecution()
 89{
 90    // This function is called from another thread.
 91    MutexLocker lock(m_sharedDataMutex);
 92    m_executionForbidden = true;
 93}
 94
 95void WorkerScriptController::setException(ScriptValue exception)
 96{
 97    throwError(*exception.v8Value());
 98}
 99
100} // namespace WebCore
101
102#endif // ENABLE(WORKERS)