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