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

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

     1 /*

     2  * Copyright (c) 2016, 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  */

    25 #ifndef SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTMANAGER_HPP

    26 #define SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTMANAGER_HPP

    28 #include "jfr/recorder/storage/jfrBuffer.hpp"

    29 #include "jfr/recorder/storage/jfrMemorySpace.hpp"

    30 #include "jfr/recorder/storage/jfrMemorySpaceRetrieval.hpp"

    32 class JfrCheckpointManager;

    33 class JfrChunkWriter;

    34 class JfrSerializer;

    35 class JfrTypeManager;

    36 class Mutex;

    37 class Thread;

    39 struct JfrCheckpointEntry {

    40   jlong size;

    41   jlong start_time;

    42   jlong duration;

    43   juint flushpoint;

    44   juint nof_segments;

    45 };

    47 typedef JfrMemorySpace<JfrBuffer, JfrMspaceSequentialRetrieval, JfrCheckpointManager> JfrCheckpointMspace;

    49 //

    50 // Responsible for maintaining checkpoints and by implication types.

    51 // A checkpoint is an event that has a payload consisting of constant types.

    52 // A constant type is a binary relation, a set of key-value pairs.

    53 //

    54 class JfrCheckpointManager : public JfrCHeapObj {

    55  public:

    56   typedef JfrCheckpointMspace::Type Buffer;

    57  private:

    58   JfrCheckpointMspace* _free_list_mspace;

    59   JfrCheckpointMspace* _epoch_transition_mspace;

    60   Mutex* _lock;

    61   const Thread* _service_thread;

    62   JfrChunkWriter& _chunkwriter;

    63   u1 _checkpoint_epoch_state;

    65   // mspace callback

    66   void register_full(Buffer* t, Thread* thread);

    67   void lock();

    68   void unlock();

    69   DEBUG_ONLY(bool is_locked() const;)

    71   static Buffer* lease_buffer(Thread* t, size_t size = 0);

    72   static Buffer* flush(Buffer* old, size_t used, size_t requested, Thread* t);

    74   size_t clear();

    75   size_t write();

    76   size_t write_epoch_transition_mspace();

    77   size_t write_types();

    78   size_t write_safepoint_types();

    79   void write_type_set();

    80   void shift_epoch();

    81   void synchronize_epoch();

    82   bool use_epoch_transition_mspace(const Thread* t) const;

    84   JfrCheckpointManager(JfrChunkWriter& cw);

    85   ~JfrCheckpointManager();

    87   static JfrCheckpointManager& instance();

    88   static JfrCheckpointManager* create(JfrChunkWriter& cw);

    89   bool initialize();

    90   static void destroy();

    92  public:

    93   void register_service_thread(const Thread* t);

    94   static void write_type_set_for_unloaded_classes();

    95   static void create_thread_checkpoint(JavaThread* jt);

    96   static void write_thread_checkpoint(JavaThread* jt);

    98   friend class JfrRecorder;

    99   friend class JfrRecorderService;

   100   friend class JfrCheckpointFlush;

   101   friend class JfrCheckpointWriter;

   102   friend class JfrSerializer;

   103   friend class JfrStackTraceRepository;

   104   template <typename, template <typename> class, typename>

   105   friend class JfrMemorySpace;

   106 };

   108 #endif //SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTMANAGER_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

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

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