| /* |
| * 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 |