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[apple/javascriptcore.git] / inspector / JSGlobalObjectScriptDebugServer.cpp
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1/*
2 * Copyright (C) 2014 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "JSGlobalObjectScriptDebugServer.h"
28
29#if ENABLE(INSPECTOR)
30
31#include "EventLoop.h"
32#include "JSCInlines.h"
33#include "JSLock.h"
34
35using namespace JSC;
36
37namespace Inspector {
38
39JSGlobalObjectScriptDebugServer::JSGlobalObjectScriptDebugServer(JSGlobalObject& globalObject)
40 : ScriptDebugServer(false)
41 , m_globalObject(globalObject)
42{
43}
44
45void JSGlobalObjectScriptDebugServer::addListener(ScriptDebugListener* listener)
46{
47 if (!listener)
48 return;
49
50 bool wasEmpty = m_listeners.isEmpty();
51 m_listeners.add(listener);
52
53 // First listener. Attach the debugger to the JSGlobalObject.
54 if (wasEmpty) {
55 attach(&m_globalObject);
56 recompileAllJSFunctions();
57 }
58}
59
60void JSGlobalObjectScriptDebugServer::removeListener(ScriptDebugListener* listener, bool isBeingDestroyed)
61{
62 if (!listener)
63 return;
64
65 m_listeners.remove(listener);
66
67 // Last listener. Detach the debugger from the JSGlobalObject.
68 if (m_listeners.isEmpty()) {
69 detach(&m_globalObject, isBeingDestroyed ? Debugger::GlobalObjectIsDestructing : Debugger::TerminatingDebuggingSession);
70 if (!isBeingDestroyed)
71 recompileAllJSFunctions();
72 }
73}
74
75void JSGlobalObjectScriptDebugServer::recompileAllJSFunctions()
76{
77 JSC::Debugger::recompileAllJSFunctions(&m_globalObject.vm());
78}
79
80void JSGlobalObjectScriptDebugServer::runEventLoopWhilePaused()
81{
82 // Drop all locks so another thread can work in the VM while we are nested.
83 JSC::JSLock::DropAllLocks dropAllLocks(&m_globalObject.vm());
84
85 EventLoop loop;
86 while (!m_doneProcessingDebuggerEvents && !loop.ended())
87 loop.cycle();
88}
89
90} // namespace Inspector
91
92#endif // ENABLE(INSPECTOR)