JavaScriptCore-1218.tar.gz

[apple/javascriptcore.git] / profiler / ProfilerExecutionCounter.h

diff --git a/profiler/ProfilerExecutionCounter.h b/profiler/ProfilerExecutionCounter.h
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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 ProfilerExecutionCounter_h
+#define ProfilerExecutionCounter_h
+
+#include <wtf/FastAllocBase.h>
+#include <wtf/Noncopyable.h>
+
+namespace JSC { namespace Profiler {
+
+class ExecutionCounter {
+    WTF_MAKE_FAST_ALLOCATED; WTF_MAKE_NONCOPYABLE(ExecutionCounter);
+public:
+    ExecutionCounter() : m_counter(0) { }
+    
+    uint64_t* address() { return &m_counter; }
+    
+    uint64_t count() const { return m_counter; }
+
+private:
+    uint64_t m_counter;
+};
+
+} } // namespace JSC::Profiler
+
+#endif // ProfilerExecutionCounter_h
+