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  */

    24 

    25 #ifndef SHARE_VM_JFR_RECORDER_SERVICE_JFRRECORDERSERVICE_HPP

    26 #define SHARE_VM_JFR_RECORDER_SERVICE_JFRRECORDERSERVICE_HPP

    27 

    28 #include "jfr/utilities/jfrAllocation.hpp"

    29 

    30 class JfrCheckpointManager;

    31 class JfrChunkWriter;

    32 class JfrRepository;

    33 class JfrStackTraceRepository;

    34 class JfrStorage;

    35 class JfrStringPool;

    36 

    37 class JfrRecorderService : public StackObj {

    38  private:

    39   JfrCheckpointManager& _checkpoint_manager;

    40   JfrChunkWriter& _chunkwriter;

    41   JfrRepository& _repository;

    42   JfrStackTraceRepository& _stack_trace_repository;

    43   JfrStorage& _storage;

    44   JfrStringPool& _string_pool;

    45 

    46   void open_new_chunk(bool vm_error = false);

    47   void chunk_rotation();

    48   void in_memory_rotation();

    49   void serialize_storage_from_in_memory_recording();

    50   void finalize_current_chunk();

    51   void finalize_current_chunk_on_vm_error();

    52   void prepare_for_vm_error_rotation();

    53   void vm_error_rotation();

    54 

    55   void clear();

    56   void pre_safepoint_clear();

    57   void safepoint_clear();

    58   void invoke_safepoint_clear();

    59   void post_safepoint_clear();

    60 

    61   void write();

    62   void pre_safepoint_write();

    63   void safepoint_write();

    64   void invoke_safepoint_write();

    65   void post_safepoint_write();

    66 

    67  public:

    68   JfrRecorderService();

    69   void start();

    70   void rotate(int msgs);

    71   void process_full_buffers();

    72   void scavenge();

    73   void evaluate_chunk_size_for_rotation();

    74   static bool is_recording();

    75 };

    76 

    77 #endif // SHARE_VM_JFR_RECORDER_SERVICE_JFRRECORDERSERVICE_HPP