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view src/share/vm/utilities/events.cpp @ 10405:f2110083203d
8005849: JEP 167: Event-Based JVM Tracing
Reviewed-by: acorn, coleenp, sla
Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author | sla |
---|---|
date | Mon, 10 Jun 2013 11:30:51 +0200 |
parents | f34d701e952e |
children | 0297e36d24a1 78bbf4d43a14 |
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/* * Copyright (c) 1997, 2012, 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. * */ #include "precompiled.hpp" #include "memory/allocation.inline.hpp" #include "runtime/mutexLocker.hpp" #include "runtime/osThread.hpp" #include "runtime/thread.inline.hpp" #include "runtime/threadCritical.hpp" #include "runtime/threadLocalStorage.hpp" #include "runtime/timer.hpp" #include "utilities/events.hpp" EventLog* Events::_logs = NULL; StringEventLog* Events::_messages = NULL; StringEventLog* Events::_exceptions = NULL; StringEventLog* Events::_deopt_messages = NULL; EventLog::EventLog() { // This normally done during bootstrap when we're only single // threaded but use a ThreadCritical to ensure inclusion in case // some are created slightly late. ThreadCritical tc; _next = Events::_logs; Events::_logs = this; } // For each registered event logger, print out the current contents of // the buffer. This is normally called when the JVM is crashing. void Events::print_all(outputStream* out) { EventLog* log = _logs; while (log != NULL) { log->print_log_on(out); log = log->next(); } } void Events::print() { print_all(tty); } void Events::init() { if (LogEvents) { _messages = new StringEventLog("Events"); _exceptions = new StringEventLog("Internal exceptions"); _deopt_messages = new StringEventLog("Deoptimization events"); } } void eventlog_init() { Events::init(); } /////////////////////////////////////////////////////////////////////////// // EventMark EventMark::EventMark(const char* format, ...) { if (LogEvents) { va_list ap; va_start(ap, format); // Save a copy of begin message and log it. _buffer.printv(format, ap); Events::log(NULL, _buffer); va_end(ap); } } EventMark::~EventMark() { if (LogEvents) { // Append " done" to the begin message and log it _buffer.append(" done"); Events::log(NULL, _buffer); } }