jdk8-mips64-public/hotspot: src/share/vm/jfr/support/jfrThreadLocal.cpp@a248d0be1309 (annotated)

src/share/vm/jfr/support/jfrThreadLocal.cpp@a248d0be1309 (annotated)

src/share/vm/jfr/support/jfrThreadLocal.cpp

Mon, 19 Aug 2019 10:11:31 +0200

author: neugens
date: Mon, 19 Aug 2019 10:11:31 +0200
changeset 9861: a248d0be1309
parent 9858: b985cbb00e68
child 9868: 69fb91513217
permissions: -rw-r--r--

8229401: Fix JFR code cache test failures
8223689: Add JFR Thread Sampling Support
8223690: Add JFR BiasedLock Event Support
8223691: Add JFR G1 Region Type Change Event Support
8223692: Add JFR G1 Heap Summary Event Support
Summary: Backport JFR from JDK11, additional fixes
Reviewed-by: neugens, apetushkov
Contributed-by: denghui.ddh@alibaba-inc.com

 /*
  * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #include "precompiled.hpp"
 #include "jfr/jni/jfrJavaSupport.hpp"
 #include "jfr/periodic/jfrThreadCPULoadEvent.hpp"
 #include "jfr/recorder/jfrRecorder.hpp"
 #include "jfr/recorder/checkpoint/jfrCheckpointManager.hpp"
 #include "jfr/recorder/checkpoint/types/traceid/jfrTraceId.inline.hpp"
 #include "jfr/recorder/service/jfrOptionSet.hpp"
 #include "jfr/recorder/storage/jfrStorage.hpp"
 #include "jfr/recorder/stacktrace/jfrStackTraceRepository.hpp"
 #include "jfr/support/jfrThreadLocal.hpp"
 #include "memory/allocation.inline.hpp"
 #include "runtime/os.hpp"
 #include "runtime/thread.inline.hpp"
 /* This data structure is per thread and only accessed by the thread itself, no locking required */
 JfrThreadLocal::JfrThreadLocal() :
   _java_event_writer(NULL),
   _java_buffer(NULL),
   _native_buffer(NULL),
   _shelved_buffer(NULL),
   _stackframes(NULL),
   _trace_id(JfrTraceId::assign_thread_id()),
   _thread_cp(),
   _data_lost(0),
   _stack_trace_id(max_julong),
   _user_time(0),
   _cpu_time(0),
   _wallclock_time(os::javaTimeNanos()),
   _stack_trace_hash(0),
   _stackdepth(0),
   _entering_suspend_flag(0),
   _dead(false) {}
 u8 JfrThreadLocal::add_data_lost(u8 value) {
   _data_lost += value;
   return _data_lost;
 }
 bool JfrThreadLocal::has_thread_checkpoint() const {
   return _thread_cp.valid();
 }
 void JfrThreadLocal::set_thread_checkpoint(const JfrCheckpointBlobHandle& ref) {
   assert(!_thread_cp.valid(), "invariant");
   _thread_cp = ref;
 }
 const JfrCheckpointBlobHandle& JfrThreadLocal::thread_checkpoint() const {
   return _thread_cp;
 }
 void JfrThreadLocal::set_dead() {
   assert(!is_dead(), "invariant");
   _dead = true;
 }
 void JfrThreadLocal::on_exit(JavaThread* thread) {
   if (JfrRecorder::is_recording()) {
     JfrCheckpointManager::write_thread_checkpoint(thread);
     JfrThreadCPULoadEvent::send_event_for_thread(thread);
   }
   thread->jfr_thread_local()->set_dead();
 }
 void JfrThreadLocal::on_destruct(Thread* thread) {
   JfrThreadLocal* const tl = thread->jfr_thread_local();
   if (tl->has_native_buffer()) {
     release(tl->native_buffer(), thread);
   }
   if (tl->has_java_buffer()) {
     release(tl->java_buffer(), thread);
   }
   assert(tl->shelved_buffer() == NULL, "invariant");
   if (thread->jfr_thread_local()->has_java_event_writer()) {
     JfrJavaSupport::destroy_global_jni_handle(tl->java_event_writer());
   }
   destroy_stackframes(thread);
 }
 JfrBuffer* JfrThreadLocal::acquire(Thread* thread, size_t size) {
   return JfrStorage::acquire_thread_local(thread, size);
 }
 void JfrThreadLocal::release(JfrBuffer* buffer, Thread* thread) {
   assert(buffer != NULL, "invariant");
   JfrStorage::release_thread_local(buffer, thread);
 }
 JfrBuffer* JfrThreadLocal::install_native_buffer() const {
   assert(!has_native_buffer(), "invariant");
   _native_buffer = acquire(Thread::current());
   return _native_buffer;
 }
 JfrBuffer* JfrThreadLocal::install_java_buffer() const {
   assert(!has_java_buffer(), "invariant");
   assert(!has_java_event_writer(), "invariant");
   _java_buffer = acquire(Thread::current());
   return _java_buffer;
 }
 JfrStackFrame* JfrThreadLocal::install_stackframes() const {
   assert(_stackframes == NULL, "invariant");
   _stackdepth = (u4)JfrOptionSet::stackdepth();
   guarantee(_stackdepth > 0, "Stackdepth must be > 0");
   _stackframes = NEW_C_HEAP_ARRAY(JfrStackFrame, _stackdepth, mtTracing);
   return _stackframes;
 }
 void JfrThreadLocal::destroy_stackframes(Thread* thread) {
   assert(thread != NULL, "invariant");
   JfrStackFrame* frames = thread->jfr_thread_local()->stackframes();
   if (frames != NULL) {
     FREE_C_HEAP_ARRAY(JfrStackFrame, frames, mtTracing);
     thread->jfr_thread_local()->set_stackframes(NULL);
   }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/jfr/support/jfrThreadLocal.cpp@a248d0be1309 (annotated)

src/share/vm/jfr/support/jfrThreadLocal.cpp