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/*
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* Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_VM_JFR_SUPPORT_JFRTHREADLOCAL_HPP
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#define SHARE_VM_JFR_SUPPORT_JFRTHREADLOCAL_HPP
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#include "jfr/recorder/checkpoint/jfrCheckpointBlob.hpp"
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#include "jfr/utilities/jfrTypes.hpp"
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#include "utilities/sizes.hpp"
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class JavaThread;
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class JfrBuffer;
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class JfrStackFrame;
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class JfrThreadLocal {
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private:
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jobject _java_event_writer;
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mutable JfrBuffer* _java_buffer;
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mutable JfrBuffer* _native_buffer;
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JfrBuffer* _shelved_buffer;
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mutable JfrStackFrame* _stackframes;
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mutable traceid _trace_id;
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JfrCheckpointBlobHandle _thread_cp;
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u8 _data_lost;
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traceid _stack_trace_id;
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jlong _user_time;
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jlong _cpu_time;
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jlong _wallclock_time;
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unsigned int _stack_trace_hash;
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mutable u4 _stackdepth;
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volatile jint _entering_suspend_flag;
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JfrBuffer* install_native_buffer() const;
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JfrBuffer* install_java_buffer() const;
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JfrStackFrame* install_stackframes() const;
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public:
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JfrThreadLocal();
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JfrBuffer* native_buffer() const {
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return _native_buffer != NULL ? _native_buffer : install_native_buffer();
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}
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bool has_native_buffer() const {
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return _native_buffer != NULL;
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}
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void set_native_buffer(JfrBuffer* buffer) {
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_native_buffer = buffer;
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}
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JfrBuffer* java_buffer() const {
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return _java_buffer != NULL ? _java_buffer : install_java_buffer();
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}
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bool has_java_buffer() const {
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return _java_buffer != NULL;
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}
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void set_java_buffer(JfrBuffer* buffer) {
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_java_buffer = buffer;
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}
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JfrBuffer* shelved_buffer() const {
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return _shelved_buffer;
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}
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void shelve_buffer(JfrBuffer* buffer) {
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_shelved_buffer = buffer;
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}
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bool has_java_event_writer() const {
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return _java_event_writer != NULL;
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}
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jobject java_event_writer() {
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return _java_event_writer;
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}
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void set_java_event_writer(jobject java_event_writer) {
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_java_event_writer = java_event_writer;
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}
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JfrStackFrame* stackframes() const {
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return _stackframes != NULL ? _stackframes : install_stackframes();
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}
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void set_stackframes(JfrStackFrame* frames) {
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_stackframes = frames;
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}
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u4 stackdepth() const {
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return _stackdepth;
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}
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void set_stackdepth(u4 depth) {
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_stackdepth = depth;
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}
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traceid thread_id() const {
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return _trace_id;
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}
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void set_thread_id(traceid thread_id) {
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_trace_id = thread_id;
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}
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void set_cached_stack_trace_id(traceid id, unsigned int hash = 0) {
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_stack_trace_id = id;
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_stack_trace_hash = hash;
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}
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bool has_cached_stack_trace() const {
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return _stack_trace_id != max_julong;
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}
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void clear_cached_stack_trace() {
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_stack_trace_id = max_julong;
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_stack_trace_hash = 0;
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}
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traceid cached_stack_trace_id() const {
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return _stack_trace_id;
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}
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unsigned int cached_stack_trace_hash() const {
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return _stack_trace_hash;
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}
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void set_trace_block() {
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_entering_suspend_flag = 1;
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}
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void clear_trace_block() {
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_entering_suspend_flag = 0;
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}
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bool is_trace_block() const {
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return _entering_suspend_flag != 0;
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}
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u8 data_lost() const {
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return _data_lost;
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}
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u8 add_data_lost(u8 value);
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jlong get_user_time() const {
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return _user_time;
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}
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void set_user_time(jlong user_time) {
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_user_time = user_time;
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}
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jlong get_cpu_time() const {
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return _cpu_time;
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}
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void set_cpu_time(jlong cpu_time) {
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_cpu_time = cpu_time;
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}
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jlong get_wallclock_time() const {
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return _wallclock_time;
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}
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void set_wallclock_time(jlong wallclock_time) {
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_wallclock_time = wallclock_time;
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}
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traceid trace_id() const {
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return _trace_id;
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}
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traceid* const trace_id_addr() const {
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return &_trace_id;
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}
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void set_trace_id(traceid id) const {
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_trace_id = id;
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}
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bool has_thread_checkpoint() const;
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void set_thread_checkpoint(const JfrCheckpointBlobHandle& handle);
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const JfrCheckpointBlobHandle& thread_checkpoint() const;
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static JfrBuffer* acquire(Thread* t, size_t size = 0);
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static void release(JfrBuffer* buffer, Thread* t);
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static void destroy_stackframes(Thread* t);
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static void on_exit(JavaThread* t);
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static void on_destruct(Thread* t);
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// Code generation
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static ByteSize trace_id_offset() {
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return in_ByteSize(offset_of(JfrThreadLocal, _trace_id));
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}
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static ByteSize java_event_writer_offset() {
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return in_ByteSize(offset_of(JfrThreadLocal, _java_event_writer));
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}
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};
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#endif // SHARE_VM_JFR_SUPPORT_JFRTHREADLOCAL_HPP
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