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 *
72 JfrRepository* JfrRepository::create(JfrPostBox& post_box) {
73 assert(_instance == NULL, "invariant");
74 _instance = new JfrRepository(post_box);
75 return _instance;
76 }
77
78 void JfrRepository::destroy() {
79 assert(_instance != NULL, "invariant");
80 delete _instance;
81 _instance = NULL;
82 }
83
84 void JfrRepository::on_vm_error() {
85 if (_path == NULL) {
86 // completed already
87 return;
88 }
89 JfrEmergencyDump::on_vm_error(_path);
90 }
91
92 bool JfrRepository::set_path(const char* path) {
93 assert(path != NULL, "trying to set the repository path with a NULL string!");
94 if (_path != NULL) {
95 // delete existing
96 JfrCHeapObj::free(_path, strlen(_path) + 1);
97 }
98 const size_t path_len = strlen(path);
99 _path = JfrCHeapObj::new_array<char>(path_len + 1);
100 if (_path == NULL) {
101 return false;
102 }
103 strncpy(_path, path, path_len + 1);
104 return true;
105 }
106
107 void JfrRepository::notify_on_new_chunk_path() {
108 if (Jfr::is_recording()) {
109 // rotations are synchronous, block until rotation completes
110 instance()._post_box.post(MSG_ROTATE);
111 }
141 const char* const canonical_chunk_path = JfrJavaSupport::c_str(path, jt);
142 if (NULL == canonical_chunk_path && !_chunkwriter->is_valid()) {
143 // new output is NULL and current output is NULL
144 return;
145 }
146 instance().set_chunk_path(canonical_chunk_path);
147 notify_on_new_chunk_path();
148 }
149
150 void JfrRepository::set_path(jstring location, JavaThread* jt) {
151 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(jt));
152 ResourceMark rm(jt);
153 const char* const path = JfrJavaSupport::c_str(location, jt);
154 if (path != NULL) {
155 instance().set_path(path);
156 }
157 }
158
159 bool JfrRepository::open_chunk(bool vm_error /* false */) {
160 if (vm_error) {
161 ResourceMark rm;
162 _chunkwriter->set_path(JfrEmergencyDump::build_dump_path(_path));
163 }
164 return _chunkwriter->open();
165 }
166
167 size_t JfrRepository::close_chunk() {
168 return _chunkwriter->close();
169 }
170
171 void JfrRepository::flush(JavaThread* jt) {
172 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(jt));
173 if (!Jfr::is_recording()) {
174 return;
175 }
176 if (!_chunkwriter->is_valid()) {
177 return;
178 }
179 instance()._post_box.post(MSG_FLUSHPOINT);
180 }
181
182 size_t JfrRepository::flush_chunk() {
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1 /*
2 * Copyright (c) 2011, 2020, 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 *
72 JfrRepository* JfrRepository::create(JfrPostBox& post_box) {
73 assert(_instance == NULL, "invariant");
74 _instance = new JfrRepository(post_box);
75 return _instance;
76 }
77
78 void JfrRepository::destroy() {
79 assert(_instance != NULL, "invariant");
80 delete _instance;
81 _instance = NULL;
82 }
83
84 void JfrRepository::on_vm_error() {
85 if (_path == NULL) {
86 // completed already
87 return;
88 }
89 JfrEmergencyDump::on_vm_error(_path);
90 }
91
92 void JfrRepository::on_vm_error_report(outputStream* st) {
93 JfrEmergencyDump::on_vm_error_report(st, instance()._path);
94 }
95
96 bool JfrRepository::set_path(const char* path) {
97 assert(path != NULL, "trying to set the repository path with a NULL string!");
98 if (_path != NULL) {
99 // delete existing
100 JfrCHeapObj::free(_path, strlen(_path) + 1);
101 }
102 const size_t path_len = strlen(path);
103 _path = JfrCHeapObj::new_array<char>(path_len + 1);
104 if (_path == NULL) {
105 return false;
106 }
107 strncpy(_path, path, path_len + 1);
108 return true;
109 }
110
111 void JfrRepository::notify_on_new_chunk_path() {
112 if (Jfr::is_recording()) {
113 // rotations are synchronous, block until rotation completes
114 instance()._post_box.post(MSG_ROTATE);
115 }
145 const char* const canonical_chunk_path = JfrJavaSupport::c_str(path, jt);
146 if (NULL == canonical_chunk_path && !_chunkwriter->is_valid()) {
147 // new output is NULL and current output is NULL
148 return;
149 }
150 instance().set_chunk_path(canonical_chunk_path);
151 notify_on_new_chunk_path();
152 }
153
154 void JfrRepository::set_path(jstring location, JavaThread* jt) {
155 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(jt));
156 ResourceMark rm(jt);
157 const char* const path = JfrJavaSupport::c_str(location, jt);
158 if (path != NULL) {
159 instance().set_path(path);
160 }
161 }
162
163 bool JfrRepository::open_chunk(bool vm_error /* false */) {
164 if (vm_error) {
165 _chunkwriter->set_path(JfrEmergencyDump::chunk_path(_path));
166 }
167 return _chunkwriter->open();
168 }
169
170 size_t JfrRepository::close_chunk() {
171 return _chunkwriter->close();
172 }
173
174 void JfrRepository::flush(JavaThread* jt) {
175 DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(jt));
176 if (!Jfr::is_recording()) {
177 return;
178 }
179 if (!_chunkwriter->is_valid()) {
180 return;
181 }
182 instance()._post_box.post(MSG_FLUSHPOINT);
183 }
184
185 size_t JfrRepository::flush_chunk() {
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