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Java example source code file (cmsOopClosures.inline.hpp)

This example Java source code file (cmsOopClosures.inline.hpp) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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Java - Java tags/keywords

classloaderdata, cmsoopclosure\:\:do_class_loader_data, cmsoopclosure\:\:do_klass, cmsoopclosure\:\:do_klass_nv, cmsoopsingenclosure\:\:do_class_loader_data, cmsoopsingenclosure\:\:do_klass, cmsoopsingenclosure\:\:do_klass_nv, expected, must, par_markrefsintoandscanclosure::trim_queue, share_vm_gc_implementation_concurrentmarksweep_cmsoopclosures_inline_hpp

The cmsOopClosures.inline.hpp Java example source code

/*
 * Copyright (c) 2007, 2012, 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_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_INLINE_HPP
#define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_INLINE_HPP

#include "gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp"
#include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"
#include "oops/oop.inline.hpp"

// Trim our work_queue so its length is below max at return
inline void Par_MarkRefsIntoAndScanClosure::trim_queue(uint max) {
  while (_work_queue->size() > max) {
    oop newOop;
    if (_work_queue->pop_local(newOop)) {
      assert(newOop->is_oop(), "Expected an oop");
      assert(_bit_map->isMarked((HeapWord*)newOop),
             "only grey objects on this stack");
      // iterate over the oops in this oop, marking and pushing
      // the ones in CMS heap (i.e. in _span).
      newOop->oop_iterate(&_par_pushAndMarkClosure);
    }
  }
}

// CMSOopClosure and CMSoopsInGenClosure are duplicated,
// until we get rid of OopsInGenClosure.

inline void CMSOopClosure::do_klass(Klass* k)       { do_klass_nv(k); }
inline void CMSOopsInGenClosure::do_klass(Klass* k) { do_klass_nv(k); }

inline void CMSOopClosure::do_klass_nv(Klass* k) {
  ClassLoaderData* cld = k->class_loader_data();
  do_class_loader_data(cld);
}
inline void CMSOopsInGenClosure::do_klass_nv(Klass* k) {
  ClassLoaderData* cld = k->class_loader_data();
  do_class_loader_data(cld);
}

inline void CMSOopClosure::do_class_loader_data(ClassLoaderData* cld) {
  assert(_klass_closure._oop_closure == this, "Must be");

  bool claim = true;  // Must claim the class loader data before processing.
  cld->oops_do(_klass_closure._oop_closure, &_klass_closure, claim);
}
inline void CMSOopsInGenClosure::do_class_loader_data(ClassLoaderData* cld) {
  assert(_klass_closure._oop_closure == this, "Must be");

  bool claim = true;  // Must claim the class loader data before processing.
  cld->oops_do(_klass_closure._oop_closure, &_klass_closure, claim);
}


#endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_INLINE_HPP

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