1 /*
   2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
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  24 
  25 #ifndef SHARE_JFR_LEAKPROFILER_CHAINS_PATHTOGCROOTSOPERATION_HPP
  26 #define SHARE_JFR_LEAKPROFILER_CHAINS_PATHTOGCROOTSOPERATION_HPP
  27 
  28 #include "jfr/leakprofiler/utilities/vmOperation.hpp"
  29 
  30 class EdgeStore;
  31 class ObjectSampler;
  32 
  33 // Safepoint operation for finding paths to gc roots
  34 class PathToGcRootsOperation : public OldObjectVMOperation {
  35  private:
  36   ObjectSampler* _sampler;
  37   EdgeStore* const _edge_store;
  38   const int64_t _cutoff_ticks;
  39   const bool _emit_all;
  40 
  41  public:
  42   PathToGcRootsOperation(ObjectSampler* sampler, EdgeStore* edge_store, int64_t cutoff, bool emit_all);
  43   virtual void doit();
  44 };
  45 
  46 #endif // SHARE_JFR_LEAKPROFILER_CHAINS_PATHTOGCROOTSOPERATION_HPP