jdk8-mips64-public/hotspot: src/share/vm/jfr/recorder/checkpoint/types/jfrTypeSetWriter.hpp@a248d0be1309 (annotated)

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

src/share/vm/jfr/recorder/checkpoint/types/jfrTypeSetWriter.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

 /*
  * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef SHARE_VM_JFR_CHECKPOINT_TYPES_JFRTYPESETWRITER_HPP
 #define SHARE_VM_JFR_CHECKPOINT_TYPES_JFRTYPESETWRITER_HPP
 #include "jfr/recorder/checkpoint/jfrCheckpointWriter.hpp"
 #include "jfr/utilities/jfrTypes.hpp"
 #include "memory/allocation.hpp"
 template <typename WriterImpl, u4 ID>
 class JfrArtifactWriterHost : public StackObj {
  private:
   WriterImpl _impl;
   JfrCheckpointWriter* _writer;
   JfrCheckpointContext _ctx;
   jlong _count_offset;
   int _count;
   bool _skip_header;
  public:
   JfrArtifactWriterHost(JfrCheckpointWriter* writer,
                         JfrArtifactSet* artifacts,
                         bool class_unload,
                         bool skip_header = false) : _impl(writer, artifacts, class_unload),
                                                     _writer(writer),
                                                     _ctx(writer->context()),
                                                     _count(0),
                                                     _skip_header(skip_header) {
     assert(_writer != NULL, "invariant");
     if (!_skip_header) {
       _writer->write_type((JfrTypeId)ID);
       _count_offset = _writer->reserve(sizeof(u4)); // Don't know how many yet
     }
   }
   ~JfrArtifactWriterHost() {
     if (_count == 0) {
       // nothing written, restore context for rewind
       _writer->set_context(_ctx);
       return;
     }
     assert(_count > 0, "invariant");
     if (!_skip_header) {
       _writer->write_count(_count, _count_offset);
     }
   }
   bool operator()(typename WriterImpl::Type const & value) {
     this->_count += _impl(value);
     return true;
   }
   int count() const   { return _count; }
   void add(int count) { _count += count; }
 };
 typedef int(*artifact_write_operation)(JfrCheckpointWriter*, JfrArtifactSet*, const void*);
 template <typename T, artifact_write_operation op>
 class JfrArtifactWriterImplHost {
  private:
   JfrCheckpointWriter* _writer;
   JfrArtifactSet* _artifacts;
   bool _class_unload;
  public:
   typedef T Type;
   JfrArtifactWriterImplHost(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, bool class_unload) :
     _writer(writer), _artifacts(artifacts), _class_unload(class_unload) {}
   int operator()(T const& value) {
     return op(this->_writer, this->_artifacts, value);
   }
 };
 template <typename T, typename Predicate, artifact_write_operation op>
 class JfrPredicatedArtifactWriterImplHost : public JfrArtifactWriterImplHost<T, op> {
  private:
   Predicate _predicate;
   typedef JfrArtifactWriterImplHost<T, op> Parent;
  public:
   JfrPredicatedArtifactWriterImplHost(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, bool class_unload) :
     Parent(writer, artifacts, class_unload), _predicate(class_unload) {}
   int operator()(T const& value) {
     return _predicate(value) ? Parent::operator()(value) : 0;
   }
 };
 #endif // SHARE_VM_JFR_CHECKPOINT_TYPES_JFRTYPESETWRITER_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

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

src/share/vm/jfr/recorder/checkpoint/types/jfrTypeSetWriter.hpp