1 /*
 2  * Copyright (c) 2011, 2021, 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_JFR_RECORDER_STACKTRACE_JFRSTACKTRACEREPOSITORY_HPP
26 #define SHARE_JFR_RECORDER_STACKTRACE_JFRSTACKTRACEREPOSITORY_HPP
27 
28 #include "jfr/recorder/stacktrace/jfrStackTrace.hpp"
29 #include "jfr/utilities/jfrAllocation.hpp"
30 #include "jfr/utilities/jfrTypes.hpp"
31 
32 class JavaThread;
33 class JfrCheckpointWriter;
34 class JfrChunkWriter;
35 
36 class JfrStackTraceRepository : public JfrCHeapObj {
37   friend class JfrRecorder;
38   friend class JfrRecorderService;
39   friend class JfrThreadSampleClosure;
40   friend class ObjectSampleCheckpoint;
41   friend class ObjectSampler;
42   friend class RecordStackTrace;
43   friend class StackTraceBlobInstaller;
44   friend class StackTraceRepository;
45 
46  private:
47   static const u4 TABLE_SIZE = 2053;
48   JfrStackTrace* _table[TABLE_SIZE];
49   u4 _last_entries;
50   u4 _entries;
51 
52   JfrStackTraceRepository();
53   static JfrStackTraceRepository& instance();
54   static JfrStackTraceRepository* create();
55   static void destroy();
56   bool initialize();
57 
58   bool is_modified() const;
59   static size_t clear();
60   static size_t clear(JfrStackTraceRepository& repo);
61   size_t write(JfrChunkWriter& cw, bool clear);
62 
63   static const JfrStackTrace* lookup_for_leak_profiler(unsigned int hash, traceid id);
64   static void record_for_leak_profiler(JavaThread* thread, int skip = 0);
65   static void clear_leak_profiler();
66 
67   traceid add_trace(const JfrStackTrace& stacktrace);
68   static traceid add(JfrStackTraceRepository& repo, const JfrStackTrace& stacktrace);
69   static traceid add(const JfrStackTrace& stacktrace);
70   traceid record(JavaThread* current_thread, int skip, JfrStackFrame* frames, u4 max_frames);
71 
72  public:
73   static traceid record(Thread* current_thread, int skip = 0);
74 };
75 
76 #endif // SHARE_JFR_RECORDER_STACKTRACE_JFRSTACKTRACEREPOSITORY_HPP
--- EOF ---