JavaScriptCore-1218.tar.gz

[apple/javascriptcore.git] / heap / HeapStatistics.h

diff --git a/heap/HeapStatistics.h b/heap/HeapStatistics.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. 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.
+ */
+
+#ifndef HeapStatistics_h
+#define HeapStatistics_h
+
+#include "JSExportMacros.h"
+#include <wtf/Deque.h>
+
+namespace JSC {
+
+class Heap;
+
+class HeapStatistics {
+public:
+    NO_RETURN static void exitWithFailure();
+    JS_EXPORT_PRIVATE static void reportSuccess();
+
+    static void initialize();
+    static void recordGCPauseTime(double start, double end);
+    static size_t parseMemoryAmount(char*);
+
+    static void showObjectStatistics(Heap*);
+
+    static const size_t KB = 1024;
+    static const size_t MB = 1024 * KB;
+    static const size_t GB = 1024 * MB;
+
+private:
+    static void logStatistics();
+    static Vector<double>* s_pauseTimeStarts;
+    static Vector<double>* s_pauseTimeEnds;
+    static double s_startTime;
+    static double s_endTime;
+};
+
+} // namespace JSC
+
+#endif