jdk8-mips64-public/hotspot: src/share/vm/jfr/recorder/checkpoint/jfrCheckpointManager.hpp@a248d0be1309 (annotated)

src/share/vm/jfr/recorder/checkpoint/jfrCheckpointManager.hpp@a248d0be1309 (annotated)

src/share/vm/jfr/recorder/checkpoint/jfrCheckpointManager.hpp

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
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) 2016, 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.
  *
  */
 #ifndef SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTMANAGER_HPP
 #define SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTMANAGER_HPP
 #include "jfr/recorder/storage/jfrBuffer.hpp"
 #include "jfr/recorder/storage/jfrMemorySpace.hpp"
 #include "jfr/recorder/storage/jfrMemorySpaceRetrieval.hpp"
 class JfrCheckpointManager;
 class JfrChunkWriter;
 class JfrSerializer;
 class JfrTypeManager;
 class Mutex;
 class Thread;
 struct JfrCheckpointEntry {
   jlong size;
   jlong start_time;
   jlong duration;
   juint flushpoint;
   juint nof_segments;
 };
 typedef JfrMemorySpace<JfrBuffer, JfrMspaceSequentialRetrieval, JfrCheckpointManager> JfrCheckpointMspace;
 //
 // Responsible for maintaining checkpoints and by implication types.
 // A checkpoint is an event that has a payload consisting of constant types.
 // A constant type is a binary relation, a set of key-value pairs.
 //
 class JfrCheckpointManager : public JfrCHeapObj {
  public:
   typedef JfrCheckpointMspace::Type Buffer;
  private:
   JfrCheckpointMspace* _free_list_mspace;
   JfrCheckpointMspace* _epoch_transition_mspace;
   Mutex* _lock;
   const Thread* _service_thread;
   JfrChunkWriter& _chunkwriter;
   u1 _checkpoint_epoch_state;
   // mspace callback
   void register_full(Buffer* t, Thread* thread);
   void lock();
   void unlock();
   DEBUG_ONLY(bool is_locked() const;)
   static Buffer* lease_buffer(Thread* t, size_t size = 0);
   static Buffer* flush(Buffer* old, size_t used, size_t requested, Thread* t);
   size_t clear();
   size_t write();
   size_t write_epoch_transition_mspace();
   size_t write_types();
   size_t write_safepoint_types();
   void write_type_set();
   void shift_epoch();
   void synchronize_epoch();
   bool use_epoch_transition_mspace(const Thread* t) const;
   JfrCheckpointManager(JfrChunkWriter& cw);
   ~JfrCheckpointManager();
   static JfrCheckpointManager& instance();
   static JfrCheckpointManager* create(JfrChunkWriter& cw);
   bool initialize();
   static void destroy();
  public:
   void register_service_thread(const Thread* t);
   static void write_type_set_for_unloaded_classes();
   static void create_thread_checkpoint(JavaThread* jt);
   static void write_thread_checkpoint(JavaThread* jt);
   friend class JfrRecorder;
   friend class JfrRecorderService;
   friend class JfrCheckpointFlush;
   friend class JfrCheckpointWriter;
   friend class JfrSerializer;
   friend class JfrStackTraceRepository;
   template <typename, template <typename> class, typename>
   friend class JfrMemorySpace;
 };
 #endif //SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTMANAGER_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/jfr/recorder/checkpoint/jfrCheckpointManager.hpp@a248d0be1309 (annotated)

src/share/vm/jfr/recorder/checkpoint/jfrCheckpointManager.hpp