jdk8-mips64-public/hotspot: src/share/vm/jfr/leakprofiler/chains/edgeStore.hpp@b985cbb00e68 (annotated)

src/share/vm/jfr/leakprofiler/chains/edgeStore.hpp@b985cbb00e68 (annotated)

src/share/vm/jfr/leakprofiler/chains/edgeStore.hpp

Mon, 12 Aug 2019 18:30:40 +0300

author: apetushkov
date: Mon, 12 Aug 2019 18:30:40 +0300
changeset 9858: b985cbb00e68
child 9885: 8e875c964f41
permissions: -rw-r--r--

8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

 /*
  * Copyright (c) 2014, 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_LEAKPROFILER_CHAINS_EDGESTORE_HPP
 #define SHARE_VM_LEAKPROFILER_CHAINS_EDGESTORE_HPP
 #include "jfr/utilities/jfrHashtable.hpp"
 #include "jfr/leakprofiler/chains/edge.hpp"
 #include "memory/allocation.hpp"
 typedef u8 traceid;
 class RoutableEdge : public Edge {
  private:
   mutable const RoutableEdge* _skip_edge;
   mutable size_t _skip_length;
   mutable bool _processed;
  public:
   RoutableEdge();
   RoutableEdge(const Edge* parent, const oop* reference);
   RoutableEdge(const Edge& edge);
   RoutableEdge(const RoutableEdge& edge);
   void operator=(const RoutableEdge& edge);
   const RoutableEdge* skip_edge() const { return _skip_edge; }
   size_t skip_length() const { return _skip_length; }
   bool is_skip_edge() const { return _skip_edge != NULL; }
   bool processed() const { return _processed; }
   bool is_sentinel() const {
     return _skip_edge == NULL && _skip_length == 1;
   }
   void set_skip_edge(const RoutableEdge* edge) const {
     assert(!is_skip_edge(), "invariant");
     assert(edge != this, "invariant");
     _skip_edge = edge;
   }
   void set_skip_length(size_t length) const {
     _skip_length = length;
   }
   void set_processed() const {
     assert(!_processed, "invariant");
     _processed = true;
   }
   // true navigation according to physical tree representation
   const RoutableEdge* physical_parent() const {
     return static_cast<const RoutableEdge*>(parent());
   }
   // logical navigation taking skip levels into account
   const RoutableEdge* logical_parent() const {
     return is_skip_edge() ? skip_edge() : physical_parent();
   }
   size_t logical_distance_to_root() const;
 };
 class EdgeStore : public CHeapObj<mtTracing> {
   typedef HashTableHost<RoutableEdge, traceid, Entry, EdgeStore> EdgeHashTable;
   typedef EdgeHashTable::HashEntry EdgeEntry;
   template <typename,
             typename,
             template<typename, typename> class,
             typename,
             size_t>
   friend class HashTableHost;
  private:
   static traceid _edge_id_counter;
   EdgeHashTable* _edges;
   // Hash table callbacks
   void assign_id(EdgeEntry* entry);
   bool equals(const Edge& query, uintptr_t hash, const EdgeEntry* entry);
   const Edge* get_edge(const Edge* edge) const;
   const Edge* put(const Edge* edge);
  public:
   EdgeStore();
   ~EdgeStore();
   void add_chain(const Edge* chain, size_t length);
   bool is_empty() const;
   size_t number_of_entries() const;
   traceid get_id(const Edge* edge) const;
   traceid get_root_id(const Edge* edge) const;
   template <typename T>
   void iterate_edges(T& functor) const { _edges->iterate_value<T>(functor); }
 };
 #endif // SHARE_VM_LEAKPROFILER_CHAINS_EDGESTORE_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/jfr/leakprofiler/chains/edgeStore.hpp@b985cbb00e68 (annotated)

src/share/vm/jfr/leakprofiler/chains/edgeStore.hpp