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_JFRTHREADEXTENSION_HPP
  26 #define SHARE_VM_JFR_SUPPORT_JFRTHREADEXTENSION_HPP
  27 
  28 #include "jfr/periodic/sampling/jfrThreadSampler.hpp"
  29 #include "jfr/support/jfrThreadLocal.hpp"
  30 
  31 #define DEFINE_THREAD_LOCAL_FIELD_JFR mutable JfrThreadLocal _jfr_thread_local
  32 
  33 #define DEFINE_THREAD_LOCAL_OFFSET_JFR \
  34   static ByteSize jfr_thread_local_offset() { return in_ByteSize(offset_of(Thread, _jfr_thread_local)); }
  35 
  36 #define THREAD_LOCAL_OFFSET_JFR Thread::jfr_thread_local_offset()
  37 
  38 #define DEFINE_THREAD_LOCAL_TRACE_ID_OFFSET_JFR \
  39   static ByteSize trace_id_offset() { return in_ByteSize(offset_of(JfrThreadLocal, _trace_id)); }
  40 
  41 #define DEFINE_THREAD_LOCAL_ACCESSOR_JFR \
  42   JfrThreadLocal* jfr_thread_local() const { return &_jfr_thread_local; }
  43 
  44 #define THREAD_ID_OFFSET_JFR JfrThreadLocal::trace_id_offset()
  45 
  46 #define THREAD_LOCAL_WRITER_OFFSET_JFR \
  47   JfrThreadLocal::java_event_writer_offset() + THREAD_LOCAL_OFFSET_JFR
  48 
  49 #define DEFINE_TRACE_SUSPEND_FLAG_METHODS \
  50   void set_trace_flag() { set_suspend_flag(_trace_flag); } \
  51   void clear_trace_flag() { clear_suspend_flag(_trace_flag); } \
  52   bool is_trace_suspend() { return (_suspend_flags & _trace_flag) != 0; }
  53 
  54 #define SUSPEND_THREAD_CONDITIONAL(thread) if ((thread)->is_trace_suspend()) JfrThreadSampling::on_javathread_suspend(thread)
  55 
  56 #endif // SHARE_VM_JFR_SUPPORT_JFRTHREADEXTENSION_HPP