1 /*
   2 * Copyright (c) 2012, 2018, 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_SUPPORT_JFRTRACEIDEXTENSION_HPP
  26 #define SHARE_VM_JFR_SUPPORT_JFRTRACEIDEXTENSION_HPP
  27 
  28 #include "jfr/recorder/checkpoint/types/traceid/jfrTraceId.hpp"
  29 
  30 #define DEFINE_TRACE_ID_FIELD mutable traceid _trace_id
  31 
  32 #define DEFINE_TRACE_ID_METHODS \
  33   traceid trace_id() const { return _trace_id; } \
  34   traceid* const trace_id_addr() const { return &_trace_id; } \
  35   void set_trace_id(traceid id) const { _trace_id = id; }
  36 
  37 #define DEFINE_TRACE_ID_SIZE \
  38   static size_t trace_id_size() { return sizeof(traceid); }
  39 
  40 #define INIT_ID(data) JfrTraceId::assign(data)
  41 #define REMOVE_ID(k) JfrTraceId::remove(k);
  42 #define RESTORE_ID(k) JfrTraceId::restore(k);
  43 
  44 class JfrTraceFlag {
  45  private:
  46   mutable jbyte _flags;
  47  public:
  48   JfrTraceFlag() : _flags(0) {}
  49   explicit JfrTraceFlag(jbyte flags) : _flags(flags) {}
  50   void set_flag(jbyte flag) const {
  51     _flags |= flag;
  52   }
  53   void clear_flag(jbyte flag) const {
  54     _flags &= (~flag);
  55   }
  56   jbyte flags() const { return _flags; }
  57   bool is_set(jbyte flag) const {
  58     return (_flags & flag) != 0;
  59   }
  60   jbyte* const flags_addr() const {
  61     return &_flags;
  62   }
  63 };
  64 
  65 #define DEFINE_TRACE_FLAG mutable JfrTraceFlag _trace_flags
  66 
  67 #define DEFINE_TRACE_FLAG_ACCESSOR                 \
  68   void set_trace_flag(jbyte flag) const {          \
  69     _trace_flags.set_flag(flag);                   \
  70   }                                                \
  71   jbyte trace_flags() const {                      \
  72     return _trace_flags.flags();                   \
  73   }                                                \
  74   bool is_trace_flag_set(jbyte flag) const {       \
  75     return _trace_flags.is_set(flag);              \
  76   }                                                \
  77   jbyte* const trace_flags_addr() const {          \
  78     return _trace_flags.flags_addr();              \
  79   }
  80 
  81 #endif // SHARE_VM_JFR_SUPPORT_JFRTRACEIDEXTENSION_HPP