--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/runtime/timerTrace.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_RUNTIME_TIMERTRACE_HPP
+#define SHARE_VM_RUNTIME_TIMERTRACE_HPP
+
+#include "logging/log.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+// TraceTime is used for tracing the execution time of a block
+// Usage:
+// {
+// TraceTime t("some timer", TIMERTRACE_LOG(Info, startuptime, tagX...));
+// some_code();
+// }
+//
+
+typedef void (*TraceTimerLogPrintFunc)(const char*, ...);
+
+// We need to explicit take address of LogImpl<>write<> and static cast
+// due to MSVC is not compliant with templates two-phase lookup
+#define TRACETIME_LOG(TT_LEVEL, ...) \
+ log_is_enabled(TT_LEVEL, __VA_ARGS__) ? static_cast<TraceTimerLogPrintFunc>(&LogImpl<LOG_TAGS(__VA_ARGS__)>::write<LogLevel::TT_LEVEL>) : (TraceTimerLogPrintFunc)NULL
+
+class TraceTime: public StackObj {
+ private:
+ bool _active; // do timing
+ bool _verbose; // report every timing
+ elapsedTimer _t; // timer
+ elapsedTimer* _accum; // accumulator
+ const char* _title; // name of timer
+ TraceTimerLogPrintFunc _print;
+
+ public:
+ // Constructors
+ TraceTime(const char* title,
+ bool doit = true);
+
+ TraceTime(const char* title,
+ elapsedTimer* accumulator,
+ bool doit = true,
+ bool verbose = false);
+
+ TraceTime(const char* title,
+ TraceTimerLogPrintFunc ttlpf);
+
+ ~TraceTime();
+
+ // Accessors
+ void set_verbose(bool verbose) { _verbose = verbose; }
+ bool verbose() const { return _verbose; }
+
+ // Activation
+ void suspend() { if (_active) _t.stop(); }
+ void resume() { if (_active) _t.start(); }
+};
+
+
+#endif // SHARE_VM_RUNTIME_TIMERTRACE_HPP