webkitgtk-2.10.2webkitgtk-2.10.2

1 files changed, 95 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/profiler/Profile.cpp b/Source/JavaScriptCore/profiler/Profile.cpp
new file mode 100644
index 000000000..f3d450ab2
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+++ b/Source/JavaScriptCore/profiler/Profile.cpp
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2008, 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 "Profile.h"
+
+#include "ProfileNode.h"
+#include <wtf/DataLog.h>
+
+namespace JSC {
+
+Ref<Profile> Profile::create(const String& title, unsigned uid, double startTime)
+{
+    return adoptRef(*new Profile(title, uid, startTime));
+}
+
+Profile::Profile(const String& title, unsigned uid, double startTime)
+    : m_title(title)
+    , m_uid(uid)
+{
+    // FIXME: When multi-threading is supported this will be a vector and calls
+    // into the profiler will need to know which thread it is executing on.
+    m_rootNode = ProfileNode::create(nullptr, CallIdentifier(ASCIILiteral("Thread_1"), String(), 0, 0), nullptr);
+    m_rootNode->appendCall(ProfileNode::Call(startTime));
+}
+
+Profile::~Profile()
+{
+}
+
+#ifndef NDEBUG
+void Profile::debugPrint()
+{
+    CalculateProfileSubtreeDataFunctor functor;
+    m_rootNode->forEachNodePostorder(functor);
+    ProfileNode::ProfileSubtreeData data = functor.returnValue();
+
+    dataLogF("Call graph:\n");
+    m_rootNode->debugPrintRecursively(0, data);
+}
+
+typedef WTF::KeyValuePair<FunctionCallHashCount::ValueType, unsigned> NameCountPair;
+
+static inline bool functionNameCountPairComparator(const NameCountPair& a, const NameCountPair& b)
+{
+    return a.value > b.value;
+}
+
+void Profile::debugPrintSampleStyle()
+{
+    typedef Vector<NameCountPair> NameCountPairVector;
+
+    CalculateProfileSubtreeDataFunctor functor;
+    m_rootNode->forEachNodePostorder(functor);
+    ProfileNode::ProfileSubtreeData data = functor.returnValue();
+
+    FunctionCallHashCount countedFunctions;
+    dataLogF("Call graph:\n");
+    m_rootNode->debugPrintSampleStyleRecursively(0, countedFunctions, data);
+
+    dataLogF("\nTotal number in stack:\n");
+    NameCountPairVector sortedFunctions(countedFunctions.size());
+    copyToVector(countedFunctions, sortedFunctions);
+
+    std::sort(sortedFunctions.begin(), sortedFunctions.end(), functionNameCountPairComparator);
+    for (NameCountPairVector::iterator it = sortedFunctions.begin(); it != sortedFunctions.end(); ++it)
+        dataLogF("        %-12d%s\n", (*it).value, String((*it).key).utf8().data());
+
+    dataLogF("\nSort by top of stack, same collapsed (when >= 5):\n");
+}
+#endif
+
+} // namespace JSC