1 /*
2 * Copyright (c) 1997, 2019, 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 */
24
25 #include "precompiled.hpp"
26 #include "memory/allocation.inline.hpp"
27 #include "runtime/mutexLocker.hpp"
28 #include "runtime/os.inline.hpp"
29 #include "runtime/osThread.hpp"
30 #include "runtime/thread.inline.hpp"
31 #include "runtime/threadCritical.hpp"
32 #include "runtime/timer.hpp"
33 #include "utilities/events.hpp"
34
35
36 EventLog* Events::_logs = NULL;
37 StringEventLog* Events::_messages = NULL;
38 ExtendedStringEventLog* Events::_exceptions = NULL;
39 StringEventLog* Events::_redefinitions = NULL;
40 StringEventLog* Events::_deopt_messages = NULL;
41
EventLog()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 }
50
51 // For each registered event logger, print out the current contents of
52 // the buffer. This is normally called when the JVM is crashing.
print_all(outputStream * out)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 }
60
print()61 void Events::print() {
62 print_all(tty);
63 }
64
init()65 void Events::init() {
66 if (LogEvents) {
67 _messages = new StringEventLog("Events");
68 _exceptions = new ExtendedStringEventLog("Internal exceptions");
69 _redefinitions = new StringEventLog("Classes redefined");
70 _deopt_messages = new StringEventLog("Deoptimization events");
71 }
72 }
73
eventlog_init()74 void eventlog_init() {
75 Events::init();
76 }
77
78 ///////////////////////////////////////////////////////////////////////////
79 // EventMark
80
EventMark(const char * format,...)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 }
91
~EventMark()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 }
99