src/hotspot/share/jfr/support/jfrTraceIdExtension.hpp
author mgronlun
Sat, 14 Sep 2019 14:40:09 +0200
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permissions -rw-r--r--
8225797: OldObjectSample event creates unexpected amount of checkpoint data Reviewed-by: egahlin
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/*
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* Copyright (c) 2012, 2019, 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_JFR_SUPPORT_JFRTRACEIDEXTENSION_HPP
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#define SHARE_JFR_SUPPORT_JFRTRACEIDEXTENSION_HPP
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#include "jfr/recorder/checkpoint/types/traceid/jfrTraceId.hpp"
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#define DEFINE_TRACE_ID_FIELD mutable traceid _trace_id
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#define DEFINE_TRACE_ID_METHODS \
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  traceid trace_id() const { return _trace_id; } \
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  traceid* const trace_id_addr() const { return &_trace_id; } \
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  void set_trace_id(traceid id) const { _trace_id = id; }
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#define DEFINE_TRACE_ID_SIZE \
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  static size_t trace_id_size() { return sizeof(traceid); }
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#define INIT_ID(data) JfrTraceId::assign(data)
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#define REMOVE_ID(k) JfrTraceId::remove(k);
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#define RESTORE_ID(k) JfrTraceId::restore(k);
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class JfrTraceFlag {
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 private:
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  mutable jshort _flags;
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 public:
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  JfrTraceFlag() : _flags(0) {}
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  bool is_set(jshort flag) const {
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    return (_flags & flag) != 0;
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  }
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  jshort flags() const {
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    return _flags;
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  }
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  void set_flags(jshort flags) const {
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    _flags = flags;
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  }
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  jbyte* flags_addr() const {
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    return (jbyte*)&_flags;
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  }
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  jbyte* meta_addr() const {
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    return ((jbyte*)&_flags) + 1;
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  }
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};
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#define DEFINE_TRACE_FLAG mutable JfrTraceFlag _trace_flags
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#define DEFINE_TRACE_FLAG_ACCESSOR                 \
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  bool is_trace_flag_set(jshort flag) const {      \
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    return _trace_flags.is_set(flag);              \
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  }                                                \
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  jshort trace_flags() const {                     \
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    return _trace_flags.flags();                   \
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  }                                                \
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  void set_trace_flags(jshort flags) const {       \
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    _trace_flags.set_flags(flags);                 \
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  }                                                \
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  jbyte* trace_flags_addr() const {                \
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    return _trace_flags.flags_addr();              \
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  }                                                \
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  jbyte* trace_meta_addr() const {                 \
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    return _trace_flags.meta_addr();               \
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  }
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#endif // SHARE_JFR_SUPPORT_JFRTRACEIDEXTENSION_HPP