mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 12:19:46 +00:00
134 lines
3.8 KiB
C++
134 lines
3.8 KiB
C++
/*
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* Copyright (C) 2016 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "ICStats.h"
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namespace JSC {
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bool ICEvent::operator<(const ICEvent& other) const
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{
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if (m_classInfo != other.m_classInfo) {
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if (!m_classInfo)
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return true;
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if (!other.m_classInfo)
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return false;
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return strcmp(m_classInfo->className, other.m_classInfo->className) < 0;
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}
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if (m_propertyName != other.m_propertyName)
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return codePointCompare(m_propertyName.string(), other.m_propertyName.string()) < 0;
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if (m_kind != other.m_kind)
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return m_kind < other.m_kind;
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return m_propertyLocation < other.m_propertyLocation;
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}
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void ICEvent::dump(PrintStream& out) const
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{
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out.print(m_kind, "(", m_classInfo ? m_classInfo->className : "<null>", ", ", m_propertyName, ")");
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if (m_propertyLocation != Unknown)
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out.print(m_propertyLocation == BaseObject ? " self" : " proto lookup");
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}
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void ICEvent::log() const
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{
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ICStats::instance().add(*this);
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}
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Atomic<ICStats*> ICStats::s_instance;
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ICStats::ICStats()
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{
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m_thread = Thread::create(
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"JSC ICStats",
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[this] () {
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LockHolder locker(m_lock);
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for (;;) {
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m_condition.waitFor(
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m_lock, Seconds(1), [this] () -> bool { return m_shouldStop; });
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if (m_shouldStop)
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break;
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dataLog("ICStats:\n");
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auto list = m_spectrum.buildList();
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for (unsigned i = list.size(); i--;)
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dataLog(" ", list[i].key, ": ", list[i].count, "\n");
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}
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});
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}
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ICStats::~ICStats()
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{
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{
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LockHolder locker(m_lock);
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m_shouldStop = true;
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m_condition.notifyAll();
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}
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m_thread->waitForCompletion();
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}
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void ICStats::add(const ICEvent& event)
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{
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m_spectrum.add(event);
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}
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ICStats& ICStats::instance()
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{
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for (;;) {
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ICStats* result = s_instance.load();
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if (result)
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return *result;
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ICStats* newStats = new ICStats();
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if (s_instance.compareExchangeWeak(nullptr, newStats))
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return *newStats;
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delete newStats;
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}
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}
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} // namespace JSC
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namespace WTF {
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using namespace JSC;
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void printInternal(PrintStream& out, ICEvent::Kind kind)
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{
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switch (kind) {
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#define ICEVENT_KIND_DUMP(name) case ICEvent::name: out.print(#name); return;
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FOR_EACH_ICEVENT_KIND(ICEVENT_KIND_DUMP);
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#undef ICEVENT_KIND_DUMP
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}
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RELEASE_ASSERT_NOT_REACHED();
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}
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} // namespace WTF
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