1/*
2 * Copyright (c) 2011, 2018, 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 "jfr/recorder/jfrEventSetting.inline.hpp"
27#include "jfr/recorder/stacktrace/jfrStackTraceRepository.hpp"
28#include "jfr/support/jfrStackTraceMark.hpp"
29#include "jfr/support/jfrThreadLocal.hpp"
30#include "runtime/thread.inline.hpp"
31
32JfrStackTraceMark::JfrStackTraceMark() : _t(Thread::current()), _previous_id(0), _previous_hash(0) {
33 JfrThreadLocal* const tl = _t->jfr_thread_local();
34 if (tl->has_cached_stack_trace()) {
35 _previous_id = tl->cached_stack_trace_id();
36 _previous_hash = tl->cached_stack_trace_hash();
37 }
38 tl->set_cached_stack_trace_id(JfrStackTraceRepository::record(Thread::current()));
39}
40
41JfrStackTraceMark::JfrStackTraceMark(Thread* t) : _t(t), _previous_id(0), _previous_hash(0) {
42 JfrThreadLocal* const tl = _t->jfr_thread_local();
43 if (tl->has_cached_stack_trace()) {
44 _previous_id = tl->cached_stack_trace_id();
45 _previous_hash = tl->cached_stack_trace_hash();
46 }
47 tl->set_cached_stack_trace_id(JfrStackTraceRepository::record(t));
48}
49
50JfrStackTraceMark::JfrStackTraceMark(JfrEventId eventId) : _t(NULL), _previous_id(0), _previous_hash(0) {
51 if (JfrEventSetting::has_stacktrace(eventId)) {
52 _t = Thread::current();
53 JfrThreadLocal* const tl = _t->jfr_thread_local();
54 if (tl->has_cached_stack_trace()) {
55 _previous_id = tl->cached_stack_trace_id();
56 _previous_hash = tl->cached_stack_trace_hash();
57 }
58 tl->set_cached_stack_trace_id(JfrStackTraceRepository::record(_t));
59 }
60}
61
62JfrStackTraceMark::JfrStackTraceMark(JfrEventId eventId, Thread* t) : _t(NULL), _previous_id(0), _previous_hash(0) {
63 if (JfrEventSetting::has_stacktrace(eventId)) {
64 _t = t;
65 JfrThreadLocal* const tl = _t->jfr_thread_local();
66 if (tl->has_cached_stack_trace()) {
67 _previous_id = tl->cached_stack_trace_id();
68 _previous_hash = tl->cached_stack_trace_hash();
69 }
70 tl->set_cached_stack_trace_id(JfrStackTraceRepository::record(_t));
71 }
72}
73
74JfrStackTraceMark::~JfrStackTraceMark() {
75 if (_previous_id != 0) {
76 _t->jfr_thread_local()->set_cached_stack_trace_id(_previous_id, _previous_hash);
77 } else {
78 if (_t != NULL) {
79 _t->jfr_thread_local()->clear_cached_stack_trace();
80 }
81 }
82}
83