/*

 * Copyright 2001-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 *

 */

/*

 * This really ought to be an inline function, but apparently the C++

 * compiler sometimes sees fit to ignore inline declarations.  Sigh.

 */

// This must a ifdef'ed because the counting it controls is in a

// perf-critical inner loop.

#define FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT 0

inline void FilterIntoCSClosure::do_oop_nv(oop* p) {

  oop obj = *p;

  if (obj != NULL && _g1->obj_in_cs(obj)) {

    _oc->do_oop(p);

#if FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT

    _dcto_cl->incr_count();

#endif

  }

}

inline void FilterIntoCSClosure::do_oop(oop* p)

{

  do_oop_nv(p);

}

#define FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT 0

inline void FilterOutOfRegionClosure::do_oop_nv(oop* p) {

  oop obj = *p;

  HeapWord* obj_hw = (HeapWord*)obj;

  if (obj_hw != NULL && (obj_hw < _r_bottom || obj_hw >= _r_end)) {

    _oc->do_oop(p);

#if FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT

    _out_of_region++;

#endif

  }

}

inline void FilterOutOfRegionClosure::do_oop(oop* p)

{

  do_oop_nv(p);

}

inline void FilterInHeapRegionAndIntoCSClosure::do_oop_nv(oop* p) {

  oop obj = *p;

  if (obj != NULL && _g1->obj_in_cs(obj))

    _oc->do_oop(p);

}

inline void FilterInHeapRegionAndIntoCSClosure::do_oop(oop* p)

{

  do_oop_nv(p);

}

inline void FilterAndMarkInHeapRegionAndIntoCSClosure::do_oop_nv(oop* p) {

  oop obj = *p;

  if (obj != NULL) {

    HeapRegion* hr = _g1->heap_region_containing((HeapWord*) obj);

    if (hr != NULL) {

      if (hr->in_collection_set())

        _oc->do_oop(p);

      else if (!hr->is_young())

        _cm->grayRoot(obj);

    }

  }

}

inline void FilterAndMarkInHeapRegionAndIntoCSClosure::do_oop(oop* p)

{

  do_oop_nv(p);

}

inline void G1ScanAndBalanceClosure::do_oop_nv(oop* p) {

  RefToScanQueue* q;

  if (ParallelGCThreads > 0) {

    // Deal the work out equally.

    _nq = (_nq + 1) % ParallelGCThreads;

    q = _g1->task_queue(_nq);

  } else {

    q = _g1->task_queue(0);

  }

  bool nooverflow = q->push(p);

  guarantee(nooverflow, "Overflow during poplularity region processing");

}

inline void G1ScanAndBalanceClosure::do_oop(oop* p) {

  do_oop_nv(p);

}