1 /*

     2  * Copyright (c) 2014, 2018, 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

    21  * questions.

    22  *

    23  */

    24 

    25 #ifndef SHARE_VM_JFR_LEAKPROFILER_CHAINS_ROOTSETCLOSURE_HPP

    26 #define SHARE_VM_JFR_LEAKPROFILER_CHAINS_ROOTSETCLOSURE_HPP

    27 

    28 #include "memory/iterator.hpp"

    29 #include "oops/oop.hpp"

    30 

    31 class EdgeQueue;

    32 

    33 class RootSetClosure: public ExtendedOopClosure {

    34  private:

    35   RootSetClosure(EdgeQueue* edge_queue);

    36   EdgeQueue* _edge_queue;

    37   void closure_impl(const oop* reference, const oop pointee);

    38  public:

    39   static void add_to_queue(EdgeQueue* edge_queue);

    40   static void process_roots(OopClosure* closure);

    41 

    42   virtual void do_oop(oop* reference);

    43   virtual void do_oop(narrowOop* reference);

    44 };

    45 

    46 #endif // SHARE_VM_JFR_LEAKPROFILER_CHAINS_ROOTSETCLOSURE_HPP