src/hotspot/share/jfr/recorder/service/jfrRecorderService.hpp
author mgronlun
Wed, 30 Oct 2019 19:43:52 +0100
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permissions -rw-r--r--
8226511: Implement JFR Event Streaming Reviewed-by: egahlin, mseledtsov, mgronlun Contributed-by: erik.gahlin@oracle.com, mikhailo.seledtsov@oracle.com, markus.gronlund@oracle.com
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/*
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 * Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef SHARE_JFR_RECORDER_SERVICE_JFRRECORDERSERVICE_HPP
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#define SHARE_JFR_RECORDER_SERVICE_JFRRECORDERSERVICE_HPP
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#include "jfr/utilities/jfrAllocation.hpp"
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class JfrCheckpointManager;
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class JfrChunkWriter;
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class JfrRepository;
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class JfrStackTraceRepository;
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class JfrStorage;
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class JfrStringPool;
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class JfrRecorderService : public StackObj {
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 private:
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  JfrCheckpointManager& _checkpoint_manager;
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  JfrChunkWriter& _chunkwriter;
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  JfrRepository& _repository;
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  JfrStackTraceRepository& _stack_trace_repository;
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  JfrStorage& _storage;
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  JfrStringPool& _string_pool;
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  void open_new_chunk(bool vm_error = false);
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  void chunk_rotation();
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  void in_memory_rotation();
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  void finalize_current_chunk();
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  void prepare_for_vm_error_rotation();
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  void vm_error_rotation();
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  void invoke_flush();
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  void clear();
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  void pre_safepoint_clear();
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  void safepoint_clear();
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  void invoke_safepoint_clear();
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  void post_safepoint_clear();
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  void write();
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  void pre_safepoint_write();
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  void safepoint_write();
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  void invoke_safepoint_write();
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  void post_safepoint_write();
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 public:
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  JfrRecorderService();
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  void start();
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  size_t flush();
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  void rotate(int msgs);
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  void flushpoint();
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  void process_full_buffers();
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  void scavenge();
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  void evaluate_chunk_size_for_rotation();
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  static bool is_recording();
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};
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#endif // SHARE_JFR_RECORDER_SERVICE_JFRRECORDERSERVICE_HPP