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
49 namespace WebCore {
50
WorkerScriptController(WorkerContext * workerContext)51 WorkerScriptController::WorkerScriptController(WorkerContext* workerContext)
52 : m_workerContext(workerContext)
53 , m_proxy(new WorkerContextExecutionProxy(workerContext))
54 , m_executionForbidden(false)
55 {
56 }
57
~WorkerScriptController()58 WorkerScriptController::~WorkerScriptController()
59 {
60 removeAllDOMObjectsInCurrentThread();
61 }
62
evaluate(const ScriptSourceCode & sourceCode)63 ScriptValue WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode)
64 {
65 return evaluate(sourceCode, 0);
66 }
67
evaluate(const ScriptSourceCode & sourceCode,ScriptValue * exception)68 ScriptValue 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
forbidExecution()88 void WorkerScriptController::forbidExecution()
89 {
90 // This function is called from another thread.
91 MutexLocker lock(m_sharedDataMutex);
92 m_executionForbidden = true;
93 }
94
setException(ScriptValue exception)95 void WorkerScriptController::setException(ScriptValue exception)
96 {
97 throwError(*exception.v8Value());
98 }
99
100 } // namespace WebCore
101
102 #endif // ENABLE(WORKERS)
103