jdk8-mips64-public/hotspot: src/share/vm/utilities/events.cpp@dc1769738300

     1 /*

     2  * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "memory/allocation.inline.hpp"

    27 #include "runtime/mutexLocker.hpp"

    28 #include "runtime/osThread.hpp"

    29 #include "runtime/thread.inline.hpp"

    30 #include "runtime/threadCritical.hpp"

    31 #include "runtime/threadLocalStorage.hpp"

    32 #include "runtime/timer.hpp"

    33 #include "utilities/events.hpp"

    36 EventLog* Events::_logs = NULL;

    37 StringEventLog* Events::_messages = NULL;

    38 StringEventLog* Events::_exceptions = NULL;

    39 StringEventLog* Events::_redefinitions = NULL;

    40 StringEventLog* Events::_deopt_messages = NULL;

    42 EventLog::EventLog() {

    43   // This normally done during bootstrap when we're only single

    44   // threaded but use a ThreadCritical to ensure inclusion in case

    45   // some are created slightly late.

    46   ThreadCritical tc;

    47   _next = Events::_logs;

    48   Events::_logs = this;

    49 }

    51 // For each registered event logger, print out the current contents of

    52 // the buffer.  This is normally called when the JVM is crashing.

    53 void Events::print_all(outputStream* out) {

    54   EventLog* log = _logs;

    55   while (log != NULL) {

    56     log->print_log_on(out);

    57     log = log->next();

    58   }

    59 }

    61 void Events::print() {

    62   print_all(tty);

    63 }

    65 void Events::init() {

    66   if (LogEvents) {

    67     _messages = new StringEventLog("Events");

    68     _exceptions = new StringEventLog("Internal exceptions");

    69     _redefinitions = new StringEventLog("Classes redefined");

    70     _deopt_messages = new StringEventLog("Deoptimization events");

    71   }

    72 }

    74 void eventlog_init() {

    75   Events::init();

    76 }

    78 ///////////////////////////////////////////////////////////////////////////

    79 // EventMark

    81 EventMark::EventMark(const char* format, ...) {

    82   if (LogEvents) {

    83     va_list ap;

    84     va_start(ap, format);

    85     // Save a copy of begin message and log it.

    86     _buffer.printv(format, ap);

    87     Events::log(NULL, "%s", _buffer.buffer());

    88     va_end(ap);

    89   }

    90 }

    92 EventMark::~EventMark() {

    93   if (LogEvents) {

    94     // Append " done" to the begin message and log it

    95     _buffer.append(" done");

    96     Events::log(NULL, "%s", _buffer.buffer());

    97   }

    98 }

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