1 files changed, 67 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/heap/SynchronousStopTheWorldMutatorScheduler.cpp b/Source/JavaScriptCore/heap/SynchronousStopTheWorldMutatorScheduler.cpp
new file mode 100644
index 000000000..7ac95adfe
--- /dev/null
+++ b/Source/JavaScriptCore/heap/SynchronousStopTheWorldMutatorScheduler.cpp
@@ -0,0 +1,67 @@
+/*
+ * 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. ``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 "SynchronousStopTheWorldMutatorScheduler.h"
+
+namespace JSC {
+
+SynchronousStopTheWorldMutatorScheduler::SynchronousStopTheWorldMutatorScheduler()
+{
+}
+
+SynchronousStopTheWorldMutatorScheduler::~SynchronousStopTheWorldMutatorScheduler()
+{
+}
+
+MutatorScheduler::State SynchronousStopTheWorldMutatorScheduler::state() const
+{
+    return m_state;
+}
+
+void SynchronousStopTheWorldMutatorScheduler::beginCollection()
+{
+    RELEASE_ASSERT(m_state == Normal);
+    m_state = Stopped;
+}
+
+MonotonicTime SynchronousStopTheWorldMutatorScheduler::timeToStop()
+{
+    return m_state == Normal ? MonotonicTime::infinity() : MonotonicTime::now();
+}
+
+MonotonicTime SynchronousStopTheWorldMutatorScheduler::timeToResume()
+{
+    return m_state == Normal ? MonotonicTime::now() : MonotonicTime::infinity();
+}
+
+void SynchronousStopTheWorldMutatorScheduler::endCollection()
+{
+    RELEASE_ASSERT(m_state == Stopped);
+    m_state = Normal;
+}
+
+} // namespace JSC
+