1 files changed, 77 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/heap/MarkingConstraint.cpp b/Source/JavaScriptCore/heap/MarkingConstraint.cpp
new file mode 100644
index 000000000..39a308187
--- /dev/null
+++ b/Source/JavaScriptCore/heap/MarkingConstraint.cpp
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+/*
+ * Copyright (C) 2017 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. AND ITS CONTRIBUTORS ``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 ITS 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 "MarkingConstraint.h"
+
+#include "JSCInlines.h"
+
+namespace JSC {
+
+MarkingConstraint::MarkingConstraint(
+    CString abbreviatedName, CString name,
+    ::Function<void(SlotVisitor&, const VisitingTimeout&)> executeFunction,
+    ConstraintVolatility volatility)
+    : m_abbreviatedName(abbreviatedName)
+    , m_name(WTFMove(name))
+    , m_executeFunction(WTFMove(executeFunction))
+    , m_volatility(volatility)
+{
+}
+
+MarkingConstraint::MarkingConstraint(
+    CString abbreviatedName, CString name,
+    ::Function<void(SlotVisitor&, const VisitingTimeout&)> executeFunction,
+    ::Function<double(SlotVisitor&)> quickWorkEstimateFunction,
+    ConstraintVolatility volatility)
+    : m_abbreviatedName(abbreviatedName)
+    , m_name(WTFMove(name))
+    , m_executeFunction(WTFMove(executeFunction))
+    , m_quickWorkEstimateFunction(WTFMove(quickWorkEstimateFunction))
+    , m_volatility(volatility)
+{
+}
+
+MarkingConstraint::~MarkingConstraint()
+{
+}
+
+void MarkingConstraint::resetStats()
+{
+    m_lastVisitCount = 0;
+}
+
+void MarkingConstraint::execute(SlotVisitor& visitor, bool& didVisitSomething, MonotonicTime timeout)
+{
+    if (Options::logGC())
+        dataLog(abbreviatedName());
+    VisitingTimeout visitingTimeout(visitor, didVisitSomething, timeout);
+    m_executeFunction(visitor, visitingTimeout);
+    m_lastVisitCount = visitingTimeout.visitCount(visitor);
+    didVisitSomething = visitingTimeout.didVisitSomething(visitor);
+}
+
+} // namespace JSC
+