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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 "bindings/v8/WorkerScriptDebugServer.h" | |
33 | |
34 #include "bindings/v8/V8ScriptRunner.h" | |
35 #include "core/inspector/ScriptDebugListener.h" | |
36 #include "core/inspector/WorkerDebuggerAgent.h" | |
37 #include "core/workers/WorkerGlobalScope.h" | |
38 #include "core/workers/WorkerThread.h" | |
39 #include <v8.h> | |
40 #include "wtf/MessageQueue.h" | |
41 | |
42 | |
43 namespace WebCore { | |
44 | |
45 WorkerScriptDebugServer::WorkerScriptDebugServer(WorkerGlobalScope* workerGlobal
Scope) | |
46 : ScriptDebugServer(v8::Isolate::GetCurrent()) | |
47 , m_listener(0) | |
48 , m_workerGlobalScope(workerGlobalScope) | |
49 { | |
50 ASSERT(m_isolate); | |
51 } | |
52 | |
53 void WorkerScriptDebugServer::addListener(ScriptDebugListener* listener) | |
54 { | |
55 v8::HandleScope scope(m_isolate); | |
56 ASSERT(!m_listener); | |
57 | |
58 v8::Debug::SetDebugEventListener(&WorkerScriptDebugServer::v8DebugEventCallb
ack, v8::External::New(m_isolate, this)); | |
59 ensureDebuggerScriptCompiled(); | |
60 m_listener = listener; | |
61 | |
62 v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); | |
63 v8::Context::Scope contextScope(debuggerContext); | |
64 | |
65 v8::Local<v8::Object> debuggerScript = m_debuggerScript.newLocal(m_isolate); | |
66 ASSERT(!debuggerScript->IsUndefined()); | |
67 | |
68 v8::Handle<v8::Function> getScriptsFunction = v8::Local<v8::Function>::Cast(
debuggerScript->Get(v8AtomicString(m_isolate, "getWorkerScripts"))); | |
69 v8::Handle<v8::Value> value = V8ScriptRunner::callInternalFunction(getScript
sFunction, debuggerScript, 0, 0, m_isolate); | |
70 if (value.IsEmpty()) | |
71 return; | |
72 ASSERT(!value->IsUndefined() && value->IsArray()); | |
73 v8::Handle<v8::Array> scriptsArray = v8::Handle<v8::Array>::Cast(value); | |
74 for (unsigned i = 0; i < scriptsArray->Length(); ++i) | |
75 dispatchDidParseSource(listener, v8::Handle<v8::Object>::Cast(scriptsArr
ay->Get(v8::Integer::New(m_isolate, i)))); | |
76 } | |
77 | |
78 void WorkerScriptDebugServer::removeListener(ScriptDebugListener* listener) | |
79 { | |
80 ASSERT(m_listener == listener); | |
81 continueProgram(); | |
82 discardDebuggerScript(); | |
83 m_listener = 0; | |
84 v8::Debug::SetDebugEventListener(0); | |
85 } | |
86 | |
87 void WorkerScriptDebugServer::interruptAndRunTask(PassOwnPtr<Task> task) | |
88 { | |
89 interruptAndRun(task, m_isolate); | |
90 } | |
91 | |
92 ScriptDebugListener* WorkerScriptDebugServer::getDebugListenerForContext(v8::Han
dle<v8::Context>) | |
93 { | |
94 // There is only one worker context in isolate. | |
95 return m_listener; | |
96 } | |
97 | |
98 void WorkerScriptDebugServer::runMessageLoopOnPause(v8::Handle<v8::Context>) | |
99 { | |
100 MessageQueueWaitResult result; | |
101 do { | |
102 result = m_workerGlobalScope->thread()->runLoop().runDebuggerTask(); | |
103 // Keep waiting until execution is resumed. | |
104 } while (result == MessageQueueMessageReceived && isPaused()); | |
105 | |
106 // The listener may have been removed in the nested loop. | |
107 if (m_listener) | |
108 m_listener->didContinue(); | |
109 } | |
110 | |
111 void WorkerScriptDebugServer::quitMessageLoopOnPause() | |
112 { | |
113 // Nothing to do here in case of workers since runMessageLoopOnPause will ch
eck for paused state after each debugger command. | |
114 } | |
115 | |
116 } // namespace WebCore | |
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