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+/*
+ * Copyright (C) 2012 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.
+ */
+
+#ifndef StructureStubClearingWatchpoint_h
+#define StructureStubClearingWatchpoint_h
+
+#include "Watchpoint.h"
+#include <wtf/Platform.h>
+
+#if ENABLE(JIT)
+
+#include <wtf/FastAllocBase.h>
+#include <wtf/Noncopyable.h>
+#include <wtf/OwnPtr.h>
+#include <wtf/PassOwnPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RefPtr.h>
+
+namespace JSC {
+
+class CodeBlock;
+class WatchpointsOnStructureStubInfo;
+struct StructureStubInfo;
+
+class StructureStubClearingWatchpoint : public Watchpoint {
+ WTF_MAKE_NONCOPYABLE(StructureStubClearingWatchpoint);
+ WTF_MAKE_FAST_ALLOCATED;
+public:
+ StructureStubClearingWatchpoint(
+ WatchpointsOnStructureStubInfo& holder)
+ : m_holder(holder)
+ {
+ }
+
+ StructureStubClearingWatchpoint(
+ WatchpointsOnStructureStubInfo& holder,
+ PassOwnPtr<StructureStubClearingWatchpoint> next)
+ : m_holder(holder)
+ , m_next(next)
+ {
+ }
+
+ virtual ~StructureStubClearingWatchpoint();
+
+ static StructureStubClearingWatchpoint* push(
+ WatchpointsOnStructureStubInfo& holder,
+ OwnPtr<StructureStubClearingWatchpoint>& head);
+
+protected:
+ void fireInternal();
+
+private:
+ WatchpointsOnStructureStubInfo& m_holder;
+ OwnPtr<StructureStubClearingWatchpoint> m_next;
+};
+
+class WatchpointsOnStructureStubInfo : public RefCounted<WatchpointsOnStructureStubInfo> {
+public:
+ WatchpointsOnStructureStubInfo(CodeBlock* codeBlock, StructureStubInfo* stubInfo)
+ : m_codeBlock(codeBlock)
+ , m_stubInfo(stubInfo)
+ {
+ }
+
+ ~WatchpointsOnStructureStubInfo();
+
+ StructureStubClearingWatchpoint* addWatchpoint();
+
+ static StructureStubClearingWatchpoint* ensureReferenceAndAddWatchpoint(
+ RefPtr<WatchpointsOnStructureStubInfo>& holderRef,
+ CodeBlock*, StructureStubInfo*);
+
+ CodeBlock* codeBlock() const { return m_codeBlock; }
+ StructureStubInfo* stubInfo() const { return m_stubInfo; }
+
+private:
+ CodeBlock* m_codeBlock;
+ StructureStubInfo* m_stubInfo;
+ OwnPtr<StructureStubClearingWatchpoint> m_head;
+};
+
+} // namespace JSC
+
+#endif // ENABLE(JIT)
+
+#endif // StructureStubClearingWatchpoint_h
+