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