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

src/share/vm/jfr/recorder/checkpoint/jfrCheckpointWriter.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

child 9947

db357034b763

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

apetushkov@9858	1	/*
apetushkov@9858	2	* Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
apetushkov@9858	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
apetushkov@9858	4	*
apetushkov@9858	5	* This code is free software; you can redistribute it and/or modify it
apetushkov@9858	6	* under the terms of the GNU General Public License version 2 only, as
apetushkov@9858	7	* published by the Free Software Foundation.
apetushkov@9858	8	*
apetushkov@9858	9	* This code is distributed in the hope that it will be useful, but WITHOUT
apetushkov@9858	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
apetushkov@9858	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
apetushkov@9858	12	* version 2 for more details (a copy is included in the LICENSE file that
apetushkov@9858	13	* accompanied this code).
apetushkov@9858	14	*
apetushkov@9858	15	* You should have received a copy of the GNU General Public License version
apetushkov@9858	16	* 2 along with this work; if not, write to the Free Software Foundation,
apetushkov@9858	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
apetushkov@9858	18	*
apetushkov@9858	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
apetushkov@9858	20	* or visit www.oracle.com if you need additional information or have any
apetushkov@9858	21	* questions.
apetushkov@9858	22	*
apetushkov@9858	23	*/
apetushkov@9858	24
apetushkov@9858	25	#ifndef SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTWRITER_HPP
apetushkov@9858	26	#define SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTWRITER_HPP
apetushkov@9858	27
apetushkov@9858	28	#include "jfr/recorder/checkpoint/jfrCheckpointBlob.hpp"
apetushkov@9858	29	#include "jfr/recorder/storage/jfrBuffer.hpp"
apetushkov@9858	30	#include "jfr/utilities/jfrTime.hpp"
apetushkov@9858	31	#include "jfr/utilities/jfrTypes.hpp"
apetushkov@9858	32	#include "jfr/writers/jfrEventWriterHost.inline.hpp"
apetushkov@9858	33	#include "jfr/writers/jfrMemoryWriterHost.inline.hpp"
apetushkov@9858	34	#include "jfr/writers/jfrStorageAdapter.hpp"
apetushkov@9858	35
apetushkov@9858	36	class Thread;
apetushkov@9858	37
apetushkov@9858	38	class JfrCheckpointFlush : public StackObj {
apetushkov@9858	39	public:
apetushkov@9858	40	typedef JfrBuffer Type;
apetushkov@9858	41	JfrCheckpointFlush(Type* old, size_t used, size_t requested, Thread* t);
apetushkov@9858	42	Type* result() { return _result; }
apetushkov@9858	43	private:
apetushkov@9858	44	Type* _result;
apetushkov@9858	45	};
apetushkov@9858	46
apetushkov@9858	47	typedef Adapter<JfrCheckpointFlush> JfrCheckpointAdapter;
apetushkov@9858	48	typedef AcquireReleaseMemoryWriterHost<JfrCheckpointAdapter, StackObj > JfrTransactionalCheckpointWriter;
apetushkov@9858	49	typedef EventWriterHost<BigEndianEncoder, CompressedIntegerEncoder, JfrTransactionalCheckpointWriter> JfrCheckpointWriterBase;
apetushkov@9858	50
apetushkov@9858	51	struct JfrCheckpointContext {
apetushkov@9858	52	jlong offset;
apetushkov@9858	53	juint count;
apetushkov@9858	54	};
apetushkov@9858	55
apetushkov@9858	56	class JfrCheckpointWriter : public JfrCheckpointWriterBase {
apetushkov@9858	57	friend class JfrSerializerRegistration;
apetushkov@9858	58	private:
apetushkov@9858	59	JfrTicks _time;
apetushkov@9858	60	jlong _offset;
apetushkov@9858	61	juint _count;
apetushkov@9858	62	bool _flushpoint;
apetushkov@9858	63	bool _header;
apetushkov@9858	64
apetushkov@9858	65	juint count() const;
apetushkov@9858	66	void set_count(juint count);
apetushkov@9858	67	void increment();
apetushkov@9858	68	void set_flushpoint(bool flushpoint);
apetushkov@9858	69	bool is_flushpoint() const;
apetushkov@9858	70	const u1* session_data(size_t* size, const JfrCheckpointContext* ctx = NULL);
apetushkov@9858	71	void release();
apetushkov@9858	72
apetushkov@9858	73	public:
apetushkov@9858	74	JfrCheckpointWriter(bool flushpoint, bool header, Thread* thread);
apetushkov@9858	75	~JfrCheckpointWriter();
apetushkov@9858	76	void write_type(JfrTypeId type_id);
apetushkov@9858	77	void write_count(u4 nof_entries);
apetushkov@9858	78	void write_count(u4 nof_entries, jlong offset);
apetushkov@9858	79	void write_key(u8 key);
apetushkov@9858	80	const JfrCheckpointContext context() const;
apetushkov@9858	81	void set_context(const JfrCheckpointContext ctx);
apetushkov@9858	82	bool has_data() const;
apetushkov@9858	83	JfrCheckpointBlobHandle checkpoint_blob();
apetushkov@9858	84	JfrCheckpointBlobHandle copy(const JfrCheckpointContext* ctx = NULL);
apetushkov@9858	85	JfrCheckpointBlobHandle move(const JfrCheckpointContext* ctx = NULL);
apetushkov@9858	86	};
apetushkov@9858	87
apetushkov@9858	88	#endif // SHARE_VM_JFR_RECORDER_CHECKPOINT_JFRCHECKPOINTWRITER_HPP