JavaScriptCore-7600.1.4.9.tar.gz

[apple/javascriptcore.git] / inspector / JSGlobalObjectScriptDebugServer.cpp

diff --git a/inspector/JSGlobalObjectScriptDebugServer.cpp b/inspector/JSGlobalObjectScriptDebugServer.cpp
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+/*
+ * Copyright (C) 2014 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "JSGlobalObjectScriptDebugServer.h"
+
+#if ENABLE(INSPECTOR)
+
+#include "EventLoop.h"
+#include "JSCInlines.h"
+#include "JSLock.h"
+
+using namespace JSC;
+
+namespace Inspector {
+
+JSGlobalObjectScriptDebugServer::JSGlobalObjectScriptDebugServer(JSGlobalObject& globalObject)
+    : ScriptDebugServer(false)
+    , m_globalObject(globalObject)
+{
+}
+
+void JSGlobalObjectScriptDebugServer::addListener(ScriptDebugListener* listener)
+{
+    if (!listener)
+        return;
+
+    bool wasEmpty = m_listeners.isEmpty();
+    m_listeners.add(listener);
+
+    // First listener. Attach the debugger to the JSGlobalObject.
+    if (wasEmpty) {
+        attach(&m_globalObject);
+        recompileAllJSFunctions();
+    }
+}
+
+void JSGlobalObjectScriptDebugServer::removeListener(ScriptDebugListener* listener, bool isBeingDestroyed)
+{
+    if (!listener)
+        return;
+
+    m_listeners.remove(listener);
+
+    // Last listener. Detach the debugger from the JSGlobalObject.
+    if (m_listeners.isEmpty()) {
+        detach(&m_globalObject, isBeingDestroyed ? Debugger::GlobalObjectIsDestructing : Debugger::TerminatingDebuggingSession);
+        if (!isBeingDestroyed)
+            recompileAllJSFunctions();
+    }
+}
+
+void JSGlobalObjectScriptDebugServer::recompileAllJSFunctions()
+{
+    JSC::Debugger::recompileAllJSFunctions(&m_globalObject.vm());
+}
+
+void JSGlobalObjectScriptDebugServer::runEventLoopWhilePaused()
+{
+    // Drop all locks so another thread can work in the VM while we are nested.
+    JSC::JSLock::DropAllLocks dropAllLocks(&m_globalObject.vm());
+
+    EventLoop loop;
+    while (!m_doneProcessingDebuggerEvents && !loop.ended())
+        loop.cycle();
+}
+
+} // namespace Inspector
+
+#endif // ENABLE(INSPECTOR)