1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/jfr/recorder/stacktrace/jfrStackTraceRepository.hpp Mon Aug 12 18:30:40 2019 +0300
1.3 @@ -0,0 +1,154 @@
1.4 +/*
1.5 + * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_JFR_RECORDER_STACKTRACE_JFRSTACKTRACEREPOSITORY_HPP
1.29 +#define SHARE_VM_JFR_RECORDER_STACKTRACE_JFRSTACKTRACEREPOSITORY_HPP
1.30 +
1.31 +#include "jfr/utilities/jfrAllocation.hpp"
1.32 +#include "jfr/utilities/jfrTypes.hpp"
1.33 +
1.34 +class frame;
1.35 +class JavaThread;
1.36 +class JfrCheckpointSystem;
1.37 +class JfrCheckpointWriter;
1.38 +class JfrChunkWriter;
1.39 +class Method;
1.40 +
1.41 +class JfrStackFrame {
1.42 + private:
1.43 + const Method* _method;
1.44 + traceid _methodid;
1.45 + int _line;
1.46 + int _bci;
1.47 + u1 _type;
1.48 +
1.49 + public:
1.50 + enum {
1.51 + FRAME_INTERPRETER = 0,
1.52 + FRAME_JIT,
1.53 + FRAME_INLINE,
1.54 + FRAME_NATIVE,
1.55 + NUM_FRAME_TYPES
1.56 + };
1.57 +
1.58 + JfrStackFrame(const traceid& id, int bci, int type, const Method* method) :
1.59 + _method(method), _methodid(id), _line(0), _bci(bci), _type(type) {}
1.60 + JfrStackFrame(const traceid& id, int bci, int type, int lineno) :
1.61 + _method(NULL), _methodid(id), _line(0), _bci(bci), _type(type) {}
1.62 + bool equals(const JfrStackFrame& rhs) const;
1.63 + void write(JfrChunkWriter& cw) const;
1.64 + void write(JfrCheckpointWriter& cpw) const;
1.65 + void resolve_lineno();
1.66 +};
1.67 +
1.68 +class JfrStackTrace : public StackObj {
1.69 + friend class JfrStackTraceRepository;
1.70 + private:
1.71 + JfrStackFrame* _frames;
1.72 + traceid _id;
1.73 + u4 _nr_of_frames;
1.74 + unsigned int _hash;
1.75 + const u4 _max_frames;
1.76 + bool _reached_root;
1.77 + bool _lineno;
1.78 +
1.79 + public:
1.80 + JfrStackTrace(JfrStackFrame* frames, u4 max_frames) : _frames(frames),
1.81 + _id(0),
1.82 + _nr_of_frames(0),
1.83 + _hash(0),
1.84 + _reached_root(false),
1.85 + _max_frames(max_frames),
1.86 + _lineno(false) {}
1.87 + bool record_thread(JavaThread& thread, frame& frame);
1.88 + bool record_safe(JavaThread* thread, int skip, bool leakp = false);
1.89 + void resolve_linenos();
1.90 + void set_nr_of_frames(u4 nr_of_frames) { _nr_of_frames = nr_of_frames; }
1.91 + void set_hash(unsigned int hash) { _hash = hash; }
1.92 + void set_frame(u4 frame_pos, JfrStackFrame& frame);
1.93 + void set_reached_root(bool reached_root) { _reached_root = reached_root; }
1.94 + bool full_stacktrace() const { return _reached_root; }
1.95 + bool have_lineno() const { return _lineno; }
1.96 +};
1.97 +
1.98 +class JfrStackTraceRepository : public JfrCHeapObj {
1.99 + friend class JfrRecorder;
1.100 + friend class JfrRecorderService;
1.101 + friend class ObjectSampler;
1.102 + friend class WriteObjectSampleStacktrace;
1.103 +
1.104 + class StackTrace : public JfrCHeapObj {
1.105 + friend class JfrStackTrace;
1.106 + friend class JfrStackTraceRepository;
1.107 + private:
1.108 + StackTrace* _next;
1.109 + JfrStackFrame* _frames;
1.110 + const traceid _id;
1.111 + u4 _nr_of_frames;
1.112 + unsigned int _hash;
1.113 + bool _reached_root;
1.114 + mutable bool _written;
1.115 +
1.116 + unsigned int hash() const { return _hash; }
1.117 + bool should_write() const { return !_written; }
1.118 +
1.119 + public:
1.120 + StackTrace(traceid id, const JfrStackTrace& trace, StackTrace* next);
1.121 + ~StackTrace();
1.122 + traceid id() const { return _id; }
1.123 + StackTrace* next() const { return _next; }
1.124 + void write(JfrChunkWriter& cw) const;
1.125 + void write(JfrCheckpointWriter& cpw) const;
1.126 + bool equals(const JfrStackTrace& rhs) const;
1.127 + };
1.128 +
1.129 + private:
1.130 + static const u4 TABLE_SIZE = 2053;
1.131 + StackTrace* _table[TABLE_SIZE];
1.132 + traceid _next_id;
1.133 + u4 _entries;
1.134 +
1.135 + size_t write_impl(JfrChunkWriter& cw, bool clear);
1.136 + traceid record_for(JavaThread* thread, int skip, JfrStackFrame* frames, u4 max_frames);
1.137 + traceid record_for(JavaThread* thread, int skip, JfrStackFrame* frames, u4 max_frames, unsigned int* hash);
1.138 + traceid add_trace(const JfrStackTrace& stacktrace);
1.139 + const StackTrace* resolve_entry(unsigned int hash, traceid id) const;
1.140 +
1.141 + static void write_metadata(JfrCheckpointWriter& cpw);
1.142 +
1.143 + JfrStackTraceRepository();
1.144 + static JfrStackTraceRepository& instance();
1.145 + public:
1.146 + static JfrStackTraceRepository* create();
1.147 + bool initialize();
1.148 + static void destroy();
1.149 + static traceid add(const JfrStackTrace& stacktrace);
1.150 + static traceid record(Thread* thread, int skip = 0);
1.151 + static traceid record(Thread* thread, int skip, unsigned int* hash);
1.152 + traceid write(JfrCheckpointWriter& cpw, traceid id, unsigned int hash);
1.153 + size_t write(JfrChunkWriter& cw, bool clear);
1.154 + size_t clear();
1.155 +};
1.156 +
1.157 +#endif // SHARE_VM_JFR_RECORDER_STACKTRACE_JFRSTACKTRACEREPOSITORY_HPP
