1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/jfr/support/jfrStackTraceMark.cpp Mon Aug 12 18:30:40 2019 +0300
1.3 @@ -0,0 +1,82 @@
1.4 +/*
1.5 + * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#include "precompiled.hpp"
1.29 +#include "jfr/recorder/jfrEventSetting.inline.hpp"
1.30 +#include "jfr/recorder/stacktrace/jfrStackTraceRepository.hpp"
1.31 +#include "jfr/support/jfrStackTraceMark.hpp"
1.32 +#include "jfr/support/jfrThreadLocal.hpp"
1.33 +#include "runtime/thread.inline.hpp"
1.34 +
1.35 +JfrStackTraceMark::JfrStackTraceMark() : _t(Thread::current()), _previous_id(0), _previous_hash(0) {
1.36 + JfrThreadLocal* const tl = _t->jfr_thread_local();
1.37 + if (tl->has_cached_stack_trace()) {
1.38 + _previous_id = tl->cached_stack_trace_id();
1.39 + _previous_hash = tl->cached_stack_trace_hash();
1.40 + }
1.41 + tl->set_cached_stack_trace_id(JfrStackTraceRepository::record(Thread::current()));
1.42 +}
1.43 +
1.44 +JfrStackTraceMark::JfrStackTraceMark(Thread* t) : _t(t), _previous_id(0), _previous_hash(0) {
1.45 + JfrThreadLocal* const tl = _t->jfr_thread_local();
1.46 + if (tl->has_cached_stack_trace()) {
1.47 + _previous_id = tl->cached_stack_trace_id();
1.48 + _previous_hash = tl->cached_stack_trace_hash();
1.49 + }
1.50 + tl->set_cached_stack_trace_id(JfrStackTraceRepository::record(t));
1.51 +}
1.52 +
1.53 +JfrStackTraceMark::JfrStackTraceMark(JfrEventId eventId) : _t(NULL), _previous_id(0), _previous_hash(0) {
1.54 + if (JfrEventSetting::has_stacktrace(eventId)) {
1.55 + _t = Thread::current();
1.56 + JfrThreadLocal* const tl = _t->jfr_thread_local();
1.57 + if (tl->has_cached_stack_trace()) {
1.58 + _previous_id = tl->cached_stack_trace_id();
1.59 + _previous_hash = tl->cached_stack_trace_hash();
1.60 + }
1.61 + tl->set_cached_stack_trace_id(JfrStackTraceRepository::record(_t));
1.62 + }
1.63 +}
1.64 +
1.65 +JfrStackTraceMark::JfrStackTraceMark(JfrEventId eventId, Thread* t) : _t(NULL), _previous_id(0), _previous_hash(0) {
1.66 + if (JfrEventSetting::has_stacktrace(eventId)) {
1.67 + _t = t;
1.68 + JfrThreadLocal* const tl = _t->jfr_thread_local();
1.69 + if (tl->has_cached_stack_trace()) {
1.70 + _previous_id = tl->cached_stack_trace_id();
1.71 + _previous_hash = tl->cached_stack_trace_hash();
1.72 + }
1.73 + tl->set_cached_stack_trace_id(JfrStackTraceRepository::record(_t));
1.74 + }
1.75 +}
1.76 +
1.77 +JfrStackTraceMark::~JfrStackTraceMark() {
1.78 + if (_previous_id != 0) {
1.79 + _t->jfr_thread_local()->set_cached_stack_trace_id(_previous_id, _previous_hash);
1.80 + } else {
1.81 + if (_t != NULL) {
1.82 + _t->jfr_thread_local()->clear_cached_stack_trace();
1.83 + }
1.84 + }
1.85 +}
