1 /*
2 * Copyright (c) 2012, 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 #ifndef SHARE_VM_JFR_JFRTHREADDATA_HPP
26 #define SHARE_VM_JFR_JFRTHREADDATA_HPP
27
28 #include "jni.h"
29 #include "jfr/recorder/checkpoint/jfrCheckpointBlob.hpp"
30 #include "jfr/utilities/jfrTypes.hpp"
31 #include "trace/traceMacros.hpp"
32
33 class JavaThread;
34 class JfrBuffer;
35 class JfrStackFrame;
36
37 class JfrThreadData {
38 private:
39 jobject _java_event_writer;
40 mutable JfrBuffer* _java_buffer;
41 mutable JfrBuffer* _native_buffer;
42 JfrBuffer* _shelved_buffer;
43 mutable JfrStackFrame* _stackframes;
44 TRACE_DEFINE_TRACE_ID_FIELD;
45 JfrCheckpointBlobHandle _thread_cp;
46 u8 _data_lost;
47 traceid _stack_trace_id;
48 jlong _user_time;
49 jlong _cpu_time;
50 jlong _wallclock_time;
51 unsigned int _stack_trace_hash;
52 mutable u4 _stackdepth;
53 volatile jint _entering_suspend_flag;
54
55 JfrBuffer* install_native_buffer() const;
56 JfrBuffer* install_java_buffer() const;
57 JfrStackFrame* install_stackframes() const;
58
59 public:
60 JfrThreadData();
61
62 JfrBuffer* native_buffer() const {
63 return _native_buffer != NULL ? _native_buffer : install_native_buffer();
64 }
65
66 bool has_native_buffer() const {
67 return _native_buffer != NULL;
68 }
69
70 void set_native_buffer(JfrBuffer* buffer) {
71 _native_buffer = buffer;
72 }
73
74 JfrBuffer* java_buffer() const {
75 return _java_buffer != NULL ? _java_buffer : install_java_buffer();
76 }
77
78 bool has_java_buffer() const {
79 return _java_buffer != NULL;
80 }
81
82 void set_java_buffer(JfrBuffer* buffer) {
83 _java_buffer = buffer;
84 }
85
86 JfrBuffer* shelved_buffer() const {
87 return _shelved_buffer;
88 }
89
90 void shelve_buffer(JfrBuffer* buffer) {
91 _shelved_buffer = buffer;
92 }
93
94 bool has_java_event_writer() const {
95 return _java_event_writer != NULL;
96 }
97
98 jobject java_event_writer() {
99 return _java_event_writer;
100 }
101
102 void set_java_event_writer(jobject java_event_writer) {
103 _java_event_writer = java_event_writer;
104 }
105
106 JfrStackFrame* stackframes() const {
107 return _stackframes != NULL ? _stackframes : install_stackframes();
108 }
109
110 void set_stackframes(JfrStackFrame* frames) {
111 _stackframes = frames;
112 }
113
114 u4 stackdepth() const {
115 return _stackdepth;
116 }
117
118 void set_stackdepth(u4 depth) {
119 _stackdepth = depth;
120 }
121
122 traceid thread_id() const {
123 return _trace_id;
124 }
125
126 void set_thread_id(traceid thread_id) {
127 _trace_id = thread_id;
128 }
129
130 void set_cached_stack_trace_id(traceid id, unsigned int hash = 0) {
131 _stack_trace_id = id;
132 _stack_trace_hash = hash;
133 }
134
135 bool has_cached_stack_trace() const {
136 return _stack_trace_id != max_julong;
137 }
138
139 void clear_cached_stack_trace() {
140 _stack_trace_id = max_julong;
141 _stack_trace_hash = 0;
142 }
143
144 traceid cached_stack_trace_id() const {
145 return _stack_trace_id;
146 }
147
148 unsigned int cached_stack_trace_hash() const {
149 return _stack_trace_hash;
150 }
151
152
153 void set_trace_block() {
154 _entering_suspend_flag = 1;
155 }
156
157 void clear_trace_block() {
158 _entering_suspend_flag = 0;
159 }
160
161 bool is_trace_block() const {
162 return _entering_suspend_flag != 0;
163 }
164
165 u8 data_lost() const {
166 return _data_lost;
167 }
168
169 u8 add_data_lost(u8 value);
170
171 jlong get_user_time() const {
172 return _user_time;
173 }
174
175 void set_user_time(jlong user_time) {
176 _user_time = user_time;
177 }
178
179 jlong get_cpu_time() const {
180 return _cpu_time;
181 }
182
183 void set_cpu_time(jlong cpu_time) {
184 _cpu_time = cpu_time;
185 }
186
187 jlong get_wallclock_time() const {
188 return _wallclock_time;
189 }
190
191 void set_wallclock_time(jlong wallclock_time) {
192 _wallclock_time = wallclock_time;
193 }
194
195 bool has_thread_checkpoint() const;
196 void set_thread_checkpoint(const JfrCheckpointBlobHandle& handle);
197 const JfrCheckpointBlobHandle& thread_checkpoint() const;
198
199 static JfrBuffer* acquire(Thread* t, size_t size = 0);
200 static void release(JfrBuffer* buffer, Thread* t);
201 static void destroy_stackframes(Thread* t);
202 static void on_exit(JavaThread* t);
203 static void on_destruct(Thread* t);
204
205 TRACE_DEFINE_TRACE_ID_METHODS;
206 // Code generation
207 TRACE_DEFINE_THREAD_ID_OFFSET;
208 TRACE_DEFINE_THREAD_ID_SIZE;
209 TRACE_DEFINE_THREAD_DATA_WRITER_OFFSET;
210 };
211
212 #endif // SHARE_VM_JFR_JFRTHREADDATA_HPP