author | mgronlun |
Tue, 27 Aug 2019 12:08:01 +0200 | |
branch | JEP-349-branch |
changeset 57886 | 87f8a814310d |
parent 57882 | 562f598d303c |
child 57983 | a57907813a83 |
permissions | -rw-r--r-- |
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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_CHECKPOINT_JFRCHECKPOINTWRITER_HPP |
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#define SHARE_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTWRITER_HPP |
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#include "jfr/recorder/checkpoint/jfrCheckpointBlob.hpp" |
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#include "jfr/recorder/storage/jfrBuffer.hpp" |
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#include "jfr/utilities/jfrTime.hpp" |
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#include "jfr/utilities/jfrTypes.hpp" |
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#include "jfr/writers/jfrEventWriterHost.inline.hpp" |
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#include "jfr/writers/jfrMemoryWriterHost.inline.hpp" |
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#include "jfr/writers/jfrStorageAdapter.hpp" |
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class Thread; |
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class JfrCheckpointFlush : public StackObj { |
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public: |
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typedef JfrBuffer Type; |
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JfrCheckpointFlush(Type* old, size_t used, size_t requested, Thread* t); |
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Type* result() { return _result; } |
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private: |
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Type* _result; |
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}; |
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typedef Adapter<JfrCheckpointFlush> JfrCheckpointAdapter; |
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typedef AcquireReleaseMemoryWriterHost<JfrCheckpointAdapter, StackObj > JfrTransactionalCheckpointWriter; |
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typedef EventWriterHost<BigEndianEncoder, CompressedIntegerEncoder, JfrTransactionalCheckpointWriter> JfrCheckpointWriterBase; |
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struct JfrCheckpointContext { |
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int64_t offset; |
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u4 count; |
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}; |
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class JfrCheckpointWriter : public JfrCheckpointWriterBase { |
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friend class JfrCheckpointManager; |
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friend class JfrSerializerRegistration; |
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private: |
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JfrTicks _time; |
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int64_t _offset; |
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u4 _count; |
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JfrCheckpointType _type; |
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bool _header; |
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u4 count() const; |
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void set_count(u4 count); |
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void increment(); |
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const u1* session_data(size_t* size, bool move = false, const JfrCheckpointContext* ctx = NULL); |
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void release(); |
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JfrCheckpointWriter(Thread* t, JfrBuffer* buffer, JfrCheckpointType type = GENERIC); |
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public: |
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JfrCheckpointWriter(JfrCheckpointType type = GENERIC); |
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JfrCheckpointWriter(Thread* t, bool header = true, JfrCheckpointType mode = GENERIC); |
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~JfrCheckpointWriter(); |
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void write_type(JfrTypeId type_id); |
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void write_count(u4 nof_entries); |
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void write_count(u4 nof_entries, int64_t offset); |
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void write_key(u8 key); |
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const JfrCheckpointContext context() const; |
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void set_context(const JfrCheckpointContext ctx); |
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bool has_data() const; |
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JfrCheckpointBlobHandle copy(const JfrCheckpointContext* ctx = NULL); |
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JfrCheckpointBlobHandle move(const JfrCheckpointContext* ctx = NULL); |
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}; |
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#endif // SHARE_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTWRITER_HPP |