1/*
2 * Copyright (C) 2011 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#include "WorkerRuntimeAgent.h"
33
34#if ENABLE(INSPECTOR)
35
36#include "InstrumentingAgents.h"
37#include "JSDOMWindowBase.h"
38#include "ScriptState.h"
39#include "WorkerDebuggerAgent.h"
40#include "WorkerGlobalScope.h"
41#include "WorkerRunLoop.h"
42#include "WorkerThread.h"
43#include <inspector/InjectedScript.h>
44#include <inspector/InjectedScriptManager.h>
45
46using namespace Inspector;
47
48namespace WebCore {
49
50WorkerRuntimeAgent::WorkerRuntimeAgent(InjectedScriptManager* injectedScriptManager, WorkerGlobalScope* workerGlobalScope)
51    : InspectorRuntimeAgent(injectedScriptManager)
52    , m_workerGlobalScope(workerGlobalScope)
53    , m_paused(false)
54{
55}
56
57void WorkerRuntimeAgent::didCreateFrontendAndBackend(Inspector::InspectorFrontendChannel*, InspectorBackendDispatcher* backendDispatcher)
58{
59    m_backendDispatcher = InspectorRuntimeBackendDispatcher::create(backendDispatcher, this);
60}
61
62void WorkerRuntimeAgent::willDestroyFrontendAndBackend(InspectorDisconnectReason)
63{
64    m_backendDispatcher.clear();
65}
66
67InjectedScript WorkerRuntimeAgent::injectedScriptForEval(ErrorString* error, const int* executionContextId)
68{
69    if (executionContextId) {
70        *error = ASCIILiteral("Execution context id is not supported for workers as there is only one execution context.");
71        return InjectedScript();
72    }
73
74    JSC::ExecState* scriptState = execStateFromWorkerGlobalScope(m_workerGlobalScope);
75    return injectedScriptManager()->injectedScriptFor(scriptState);
76}
77
78void WorkerRuntimeAgent::muteConsole()
79{
80    // We don't need to mute console for workers.
81}
82
83void WorkerRuntimeAgent::unmuteConsole()
84{
85    // We don't need to mute console for workers.
86}
87
88void WorkerRuntimeAgent::run(ErrorString*)
89{
90    m_paused = false;
91}
92
93JSC::VM& WorkerRuntimeAgent::globalVM()
94{
95    return JSDOMWindowBase::commonVM();
96}
97
98void WorkerRuntimeAgent::pauseWorkerGlobalScope(WorkerGlobalScope* context)
99{
100    m_paused = true;
101    MessageQueueWaitResult result;
102    do {
103        result = context->thread().runLoop().runInMode(context, WorkerDebuggerAgent::debuggerTaskMode);
104    // Keep waiting until execution is resumed.
105    } while (result == MessageQueueMessageReceived && m_paused);
106}
107
108} // namespace WebCore
109
110#endif // ENABLE(INSPECTOR)
111